intermittent commit

src/govoplan_addresses/backend/__init__.py

@@ -0,0 +1,2 @@
+"""Backend integration for the GovOPlaN addresses module."""
+

src/govoplan_addresses/backend/capabilities.py

@@ -0,0 +1,629 @@
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Any
+
+from sqlalchemy import func
+
+from govoplan_core.auth import ApiPrincipal
+from govoplan_core.db.base import utcnow
+from govoplan_addresses.backend.db.models import AddressBook, AddressList, AddressListEntry, Contact, ContactEmail, ContactPhone
+from govoplan_addresses.backend.schemas import ContactCreateRequest
+from govoplan_addresses.backend.service import (
+    AddressBookError,
+    create_contact,
+    get_visible_address_book,
+    get_visible_address_list,
+    list_address_books,
+    list_address_list_entries,
+    list_address_lists,
+    list_contacts,
+)
+
+
+CAPABILITY_ADDRESSES_LOOKUP = "addresses.lookup"
+CAPABILITY_ADDRESSES_RECIPIENT_SOURCE = "addresses.recipient_source"
+CAPABILITY_ADDRESSES_CONTACT_WRITER = "addresses.contact_writer"
+
+CONTACT_WRITE_OPERATIONS = ("create_contact", "update_contact", "delete_contact")
+
+
+@dataclass(frozen=True, slots=True)
+class AddressLookupCandidate:
+    contact_id: str
+    address_book_id: str
+    display_name: str
+    email: str | None
+    email_label: str | None = None
+    organization: str | None = None
+    role_title: str | None = None
+    tags: tuple[str, ...] = ()
+    source_kind: str = "local"
+    source_ref: str | None = None
+    source_revision: str | None = None
+    provenance: dict[str, Any] = field(default_factory=dict)
+
+
+@dataclass(frozen=True, slots=True)
+class RecipientSnapshotItem:
+    contact_id: str
+    display_name: str
+    email: str
+    email_label: str | None = None
+    fields: dict[str, Any] = field(default_factory=dict)
+    provenance: dict[str, Any] = field(default_factory=dict)
+
+
+@dataclass(frozen=True, slots=True)
+class RecipientSourceRef:
+    source_id: str
+    source_label: str
+    source_kind: str
+    source_revision: str
+    recipient_count: int = 0
+    provenance: dict[str, Any] = field(default_factory=dict)
+
+
+@dataclass(frozen=True, slots=True)
+class RecipientSourceSnapshot:
+    source_id: str
+    source_label: str
+    source_kind: str
+    source_revision: str
+    generated_at: str
+    recipients: tuple[RecipientSnapshotItem, ...]
+    provenance: dict[str, Any] = field(default_factory=dict)
+
+
+@dataclass(frozen=True, slots=True)
+class AddressBookWriteDecision:
+    address_book_id: str
+    address_book_label: str | None
+    operation: str
+    allowed: bool
+    reason: str
+    message: str
+    scope_type: str | None = None
+    scope_id: str | None = None
+    tenant_id: str | None = None
+    source_kind: str | None = None
+    read_only: bool = False
+    required_scopes: tuple[str, ...] = ()
+    provenance: dict[str, Any] = field(default_factory=dict)
+
+
+@dataclass(frozen=True, slots=True)
+class ContactWriteResult:
+    contact_id: str
+    address_book_id: str
+    display_name: str
+    email: str | None = None
+    source_kind: str = "local"
+    provenance: dict[str, Any] = field(default_factory=dict)
+
+
+class AddressWriterError(ValueError):
+    def __init__(self, decision: AddressBookWriteDecision):
+        super().__init__(decision.message)
+        self.decision = decision
+
+
+class AddressesLookupCapability:
+    def lookup(
+        self,
+        session: Any,
+        principal: ApiPrincipal,
+        *,
+        query: str,
+        limit: int = 25,
+        address_book_id: str | None = None,
+    ) -> tuple[AddressLookupCandidate, ...]:
+        normalized_limit = max(1, min(limit, 100))
+        contacts = list_contacts(
+            session,
+            principal,
+            address_book_id=address_book_id,
+            query=query,
+            limit=normalized_limit,
+        )
+        candidates: list[AddressLookupCandidate] = []
+        for contact in contacts:
+            email_rows: list[ContactEmail | None] = list(contact.emails) or [None]
+            for email in email_rows:
+                candidates.append(_lookup_candidate(contact, email))
+                if len(candidates) >= normalized_limit:
+                    return tuple(candidates)
+        return tuple(candidates)
+
+
+class AddressesContactWriterCapability:
+    def list_write_targets(
+        self,
+        session: Any,
+        principal: ApiPrincipal,
+        *,
+        operation: str = "create_contact",
+    ) -> tuple[AddressBookWriteDecision, ...]:
+        books = list_address_books(session, principal)
+        return tuple(_address_book_write_decision(principal, book, operation=operation) for book in books)
+
+    def can_write_to_address_book(
+        self,
+        session: Any,
+        principal: ApiPrincipal,
+        *,
+        address_book_id: str,
+        operation: str = "create_contact",
+    ) -> AddressBookWriteDecision:
+        try:
+            book = get_visible_address_book(session, principal, address_book_id, include_deleted=True)
+        except AddressBookError:
+            return _blocked_write_decision(
+                address_book_id=address_book_id,
+                operation=operation,
+                reason="not_visible",
+                message="Address book is not visible to the current principal.",
+            )
+        return _address_book_write_decision(principal, book, operation=operation)
+
+    def create_contact(
+        self,
+        session: Any,
+        principal: ApiPrincipal,
+        *,
+        address_book_id: str,
+        payload: ContactCreateRequest | dict[str, Any],
+        provenance: dict[str, Any] | None = None,
+    ) -> ContactWriteResult:
+        decision = self.can_write_to_address_book(session, principal, address_book_id=address_book_id, operation="create_contact")
+        if not decision.allowed:
+            raise AddressWriterError(decision)
+        request = payload if isinstance(payload, ContactCreateRequest) else ContactCreateRequest.model_validate(payload)
+        if provenance:
+            request = request.model_copy(update={"provenance": {**request.provenance, **provenance}})
+        contact = create_contact(session, principal, address_book_id, request)
+        return _contact_write_result(contact)
+
+
+class AddressesRecipientSourceCapability:
+    def list_sources(
+        self,
+        session: Any,
+        principal: ApiPrincipal,
+    ) -> tuple[RecipientSourceRef, ...]:
+        from govoplan_addresses.backend.service import address_book_contact_counts, address_list_entry_counts
+
+        books = list_address_books(session, principal)
+        counts = address_book_contact_counts(session, [book.id for book in books])
+        contact_updated_at = _address_book_contact_updated_at(session, [book.id for book in books])
+        book_sources = tuple(
+            _recipient_source_ref(
+                book,
+                recipient_count=counts.get(book.id, 0),
+                latest_contact_updated_at=contact_updated_at.get(book.id),
+            )
+            for book in books
+        )
+        address_lists = list_address_lists(session, principal)
+        address_list_counts = address_list_entry_counts(session, [address_list.id for address_list in address_lists])
+        address_list_updated_at = _address_list_updated_at(session, [address_list.id for address_list in address_lists])
+        list_sources = tuple(
+            _address_list_source_ref(
+                address_list,
+                recipient_count=address_list_counts.get(address_list.id, 0),
+                latest_entry_updated_at=address_list_updated_at.get(address_list.id),
+            )
+            for address_list in address_lists
+        )
+        return book_sources + list_sources
+
+    def snapshot_address_book(
+        self,
+        session: Any,
+        principal: ApiPrincipal,
+        *,
+        address_book_id: str,
+    ) -> RecipientSourceSnapshot:
+        book = get_visible_address_book(session, principal, address_book_id)
+        contacts = _active_address_book_contacts(session, book.id)
+        recipients: list[RecipientSnapshotItem] = []
+        for contact in contacts:
+            for email in contact.emails:
+                recipients.append(_recipient_snapshot_item(contact, email))
+        revision = _recipient_source_revision(book, _address_book_contact_updated_at(session, [book.id]).get(book.id))
+        return RecipientSourceSnapshot(
+            source_id=f"addresses:address_book:{book.id}",
+            source_label=book.name,
+            source_kind=book.source_kind,
+            source_revision=revision,
+            generated_at=utcnow().isoformat(),
+            recipients=tuple(recipients),
+            provenance={
+                "module": "addresses",
+                "address_book_id": book.id,
+                "scope_type": book.scope_type,
+                "scope_id": book.scope_id,
+                "tenant_id": book.tenant_id,
+            },
+        )
+
+    def snapshot_address_list(
+        self,
+        session: Any,
+        principal: ApiPrincipal,
+        *,
+        address_list_id: str,
+    ) -> RecipientSourceSnapshot:
+        address_list = get_visible_address_list(session, principal, address_list_id)
+        entries = list_address_list_entries(session, principal, address_list.id)
+        recipients: list[RecipientSnapshotItem] = []
+        for entry in entries:
+            email = _entry_email(entry)
+            if email is None:
+                continue
+            recipients.append(_recipient_snapshot_item(entry.contact, email, address_list=address_list, address_list_entry=entry))
+        revision = _address_list_source_revision(address_list, _address_list_updated_at(session, [address_list.id]).get(address_list.id))
+        return RecipientSourceSnapshot(
+            source_id=f"addresses:address_list:{address_list.id}",
+            source_label=address_list.name,
+            source_kind="address_list",
+            source_revision=revision,
+            generated_at=utcnow().isoformat(),
+            recipients=tuple(recipients),
+            provenance={
+                "module": "addresses",
+                "address_book_id": address_list.address_book_id,
+                "address_list_id": address_list.id,
+                "scope_type": address_list.address_book.scope_type,
+                "scope_id": address_list.address_book.scope_id,
+                "tenant_id": address_list.tenant_id,
+            },
+        )
+
+    def snapshot(
+        self,
+        session: Any,
+        principal: ApiPrincipal,
+        *,
+        source_id: str,
+    ) -> RecipientSourceSnapshot:
+        book_prefix = "addresses:address_book:"
+        if source_id.startswith(book_prefix):
+            return self.snapshot_address_book(session, principal, address_book_id=source_id.removeprefix(book_prefix))
+        list_prefix = "addresses:address_list:"
+        if source_id.startswith(list_prefix):
+            return self.snapshot_address_list(session, principal, address_list_id=source_id.removeprefix(list_prefix))
+        raise ValueError(f"Unsupported addresses recipient source id: {source_id}")
+
+
+def lookup_capability(_context: Any) -> AddressesLookupCapability:
+    return AddressesLookupCapability()
+
+
+def recipient_source_capability(_context: Any) -> AddressesRecipientSourceCapability:
+    return AddressesRecipientSourceCapability()
+
+
+def contact_writer_capability(_context: Any) -> AddressesContactWriterCapability:
+    return AddressesContactWriterCapability()
+
+
+def _operation_required_scopes(operation: str) -> tuple[str, ...] | None:
+    if operation in ("create_contact", "update_contact"):
+        return ("addresses:address_book:read", "addresses:contact:write")
+    if operation == "delete_contact":
+        return ("addresses:address_book:read", "addresses:contact:delete")
+    return None
+
+
+def _address_book_write_decision(principal: ApiPrincipal, book: AddressBook, *, operation: str) -> AddressBookWriteDecision:
+    required_scopes = _operation_required_scopes(operation)
+    if required_scopes is None:
+        return _blocked_write_decision(
+            address_book_id=book.id,
+            operation=operation,
+            reason="unsupported_operation",
+            message=f"Unsupported address-book write operation: {operation}",
+            book=book,
+        )
+    missing_scopes = tuple(scope for scope in required_scopes if not principal.has(scope))
+    if missing_scopes:
+        return _blocked_write_decision(
+            address_book_id=book.id,
+            operation=operation,
+            reason="missing_scope",
+            message=f"Missing scope: {missing_scopes[0]}",
+            book=book,
+            required_scopes=required_scopes,
+        )
+    if book.deleted_at is not None:
+        return _blocked_write_decision(
+            address_book_id=book.id,
+            operation=operation,
+            reason="address_book_deleted",
+            message="Address book is deleted.",
+            book=book,
+            required_scopes=required_scopes,
+        )
+    if book.read_only:
+        return _blocked_write_decision(
+            address_book_id=book.id,
+            operation=operation,
+            reason="address_book_read_only",
+            message="Address book is read-only.",
+            book=book,
+            required_scopes=required_scopes,
+        )
+    return AddressBookWriteDecision(
+        address_book_id=book.id,
+        address_book_label=book.name,
+        operation=operation,
+        allowed=True,
+        reason="allowed",
+        message="Address book accepts this write operation.",
+        scope_type=book.scope_type,
+        scope_id=book.scope_id,
+        tenant_id=book.tenant_id,
+        source_kind=book.source_kind,
+        read_only=book.read_only,
+        required_scopes=required_scopes,
+        provenance=_address_book_provenance(book),
+    )
+
+
+def _blocked_write_decision(
+    *,
+    address_book_id: str,
+    operation: str,
+    reason: str,
+    message: str,
+    book: AddressBook | None = None,
+    required_scopes: tuple[str, ...] = (),
+) -> AddressBookWriteDecision:
+    return AddressBookWriteDecision(
+        address_book_id=address_book_id,
+        address_book_label=book.name if book else None,
+        operation=operation,
+        allowed=False,
+        reason=reason,
+        message=message,
+        scope_type=book.scope_type if book else None,
+        scope_id=book.scope_id if book else None,
+        tenant_id=book.tenant_id if book else None,
+        source_kind=book.source_kind if book else None,
+        read_only=book.read_only if book else False,
+        required_scopes=required_scopes,
+        provenance=_address_book_provenance(book) if book else {"module": "addresses", "address_book_id": address_book_id},
+    )
+
+
+def _lookup_candidate(contact: Contact, email: ContactEmail | None) -> AddressLookupCandidate:
+    return AddressLookupCandidate(
+        contact_id=contact.id,
+        address_book_id=contact.address_book_id,
+        display_name=contact.display_name,
+        email=email.email if email is not None else None,
+        email_label=email.label if email is not None else None,
+        organization=contact.organization,
+        role_title=contact.role_title,
+        tags=tuple(contact.tags or ()),
+        source_kind=contact.source_kind,
+        source_ref=contact.source_ref,
+        source_revision=contact.source_revision,
+        provenance=_contact_provenance(contact),
+    )
+
+
+def _recipient_snapshot_item(
+    contact: Contact,
+    email: ContactEmail,
+    *,
+    address_list: AddressList | None = None,
+    address_list_entry: AddressListEntry | None = None,
+) -> RecipientSnapshotItem:
+    primary_phone = next((phone.phone for phone in contact.phones if phone.is_primary), contact.phones[0].phone if contact.phones else None)
+    provenance = {
+        **_contact_provenance(contact),
+        "email_id": email.id,
+        "email_label": email.label,
+        "email_primary": email.is_primary,
+    }
+    if address_list is not None and address_list_entry is not None:
+        provenance.update(
+            {
+                "address_list_id": address_list.id,
+                "address_list_entry_id": address_list_entry.id,
+                "address_list_name": address_list.name,
+                "address_list_entry_kind": address_list_entry.target_kind,
+            }
+        )
+    return RecipientSnapshotItem(
+        contact_id=contact.id,
+        display_name=contact.display_name,
+        email=email.email,
+        email_label=email.label,
+        fields={
+            "given_name": contact.given_name,
+            "family_name": contact.family_name,
+            "organization": contact.organization,
+            "role_title": contact.role_title,
+            "phone": primary_phone,
+            "tags": list(contact.tags or ()),
+        },
+        provenance=provenance,
+    )
+
+
+def _contact_provenance(contact: Contact) -> dict[str, Any]:
+    return {
+        "module": "addresses",
+        "contact_id": contact.id,
+        "address_book_id": contact.address_book_id,
+        "source_kind": contact.source_kind,
+        "source_ref": contact.source_ref,
+        "source_revision": contact.source_revision,
+    }
+
+
+def _address_book_provenance(book: AddressBook) -> dict[str, Any]:
+    return {
+        "module": "addresses",
+        "address_book_id": book.id,
+        "scope_type": book.scope_type,
+        "scope_id": book.scope_id,
+        "tenant_id": book.tenant_id,
+        "source_kind": book.source_kind,
+        "source_ref": book.source_ref,
+    }
+
+
+def _entry_email(entry: AddressListEntry) -> ContactEmail | None:
+    if entry.contact_postal_address_id is not None:
+        return None
+    if entry.contact_email is not None:
+        return entry.contact_email
+    return next((email for email in entry.contact.emails if email.is_primary), entry.contact.emails[0] if entry.contact.emails else None)
+
+
+def _contact_write_result(contact: Contact) -> ContactWriteResult:
+    primary_email = next((email.email for email in contact.emails if email.is_primary), contact.emails[0].email if contact.emails else None)
+    return ContactWriteResult(
+        contact_id=contact.id,
+        address_book_id=contact.address_book_id,
+        display_name=contact.display_name,
+        email=primary_email,
+        source_kind=contact.source_kind,
+        provenance={
+            **_contact_provenance(contact),
+            "contact_provenance": contact.provenance,
+        },
+    )
+
+
+def _recipient_source_ref(book: AddressBook, *, recipient_count: int, latest_contact_updated_at: datetime | None = None) -> RecipientSourceRef:
+    return RecipientSourceRef(
+        source_id=f"addresses:address_book:{book.id}",
+        source_label=book.name,
+        source_kind=book.source_kind,
+        source_revision=_recipient_source_revision(book, latest_contact_updated_at),
+        recipient_count=recipient_count,
+        provenance={
+            "module": "addresses",
+            "address_book_id": book.id,
+            "scope_type": book.scope_type,
+            "scope_id": book.scope_id,
+            "tenant_id": book.tenant_id,
+        },
+    )
+
+
+def _address_list_source_ref(address_list: AddressList, *, recipient_count: int, latest_entry_updated_at: datetime | None = None) -> RecipientSourceRef:
+    return RecipientSourceRef(
+        source_id=f"addresses:address_list:{address_list.id}",
+        source_label=address_list.name,
+        source_kind="address_list",
+        source_revision=_address_list_source_revision(address_list, latest_entry_updated_at),
+        recipient_count=recipient_count,
+        provenance={
+            "module": "addresses",
+            "address_book_id": address_list.address_book_id,
+            "address_list_id": address_list.id,
+            "scope_type": address_list.address_book.scope_type,
+            "scope_id": address_list.address_book.scope_id,
+            "tenant_id": address_list.tenant_id,
+        },
+    )
+
+
+def _active_address_book_contacts(session: Any, address_book_id: str) -> list[Contact]:
+    return (
+        session.query(Contact)
+        .filter(Contact.address_book_id == address_book_id, Contact.deleted_at.is_(None))
+        .order_by(Contact.display_name.asc(), Contact.id.asc())
+        .all()
+    )
+
+
+def _address_book_contact_updated_at(session: Any, address_book_ids: list[str]) -> dict[str, datetime]:
+    if not address_book_ids:
+        return {}
+    revisions: dict[str, datetime] = {}
+    contact_rows = (
+        session.query(Contact.address_book_id, func.max(Contact.updated_at))
+        .filter(Contact.address_book_id.in_(address_book_ids), Contact.deleted_at.is_(None))
+        .group_by(Contact.address_book_id)
+        .all()
+    )
+    deletion_rows = (
+        session.query(Contact.address_book_id, func.max(Contact.deleted_at))
+        .filter(Contact.address_book_id.in_(address_book_ids), Contact.deleted_at.is_not(None))
+        .group_by(Contact.address_book_id)
+        .all()
+    )
+    email_rows = (
+        session.query(Contact.address_book_id, func.max(ContactEmail.updated_at))
+        .join(Contact, ContactEmail.contact_id == Contact.id)
+        .filter(Contact.address_book_id.in_(address_book_ids), Contact.deleted_at.is_(None))
+        .group_by(Contact.address_book_id)
+        .all()
+    )
+    phone_rows = (
+        session.query(Contact.address_book_id, func.max(ContactPhone.updated_at))
+        .join(Contact, ContactPhone.contact_id == Contact.id)
+        .filter(Contact.address_book_id.in_(address_book_ids), Contact.deleted_at.is_(None))
+        .group_by(Contact.address_book_id)
+        .all()
+    )
+    for address_book_id, updated_at in [*contact_rows, *deletion_rows, *email_rows, *phone_rows]:
+        if updated_at is None:
+            continue
+        key = str(address_book_id)
+        revisions[key] = max(revisions.get(key, updated_at), updated_at)
+    return revisions
+
+
+def _address_list_updated_at(session: Any, address_list_ids: list[str]) -> dict[str, datetime]:
+    if not address_list_ids:
+        return {}
+    revisions: dict[str, datetime] = {}
+    entry_rows = (
+        session.query(AddressListEntry.address_list_id, func.max(AddressListEntry.updated_at))
+        .filter(AddressListEntry.address_list_id.in_(address_list_ids))
+        .group_by(AddressListEntry.address_list_id)
+        .all()
+    )
+    contact_rows = (
+        session.query(AddressListEntry.address_list_id, func.max(Contact.updated_at))
+        .join(Contact, AddressListEntry.contact_id == Contact.id)
+        .filter(AddressListEntry.address_list_id.in_(address_list_ids), Contact.deleted_at.is_(None))
+        .group_by(AddressListEntry.address_list_id)
+        .all()
+    )
+    email_rows = (
+        session.query(AddressListEntry.address_list_id, func.max(ContactEmail.updated_at))
+        .join(ContactEmail, AddressListEntry.contact_email_id == ContactEmail.id)
+        .filter(AddressListEntry.address_list_id.in_(address_list_ids))
+        .group_by(AddressListEntry.address_list_id)
+        .all()
+    )
+    for address_list_id, updated_at in [*entry_rows, *contact_rows, *email_rows]:
+        if updated_at is None:
+            continue
+        key = str(address_list_id)
+        revisions[key] = max(revisions.get(key, updated_at), updated_at)
+    return revisions
+
+
+def _recipient_source_revision(book: AddressBook, latest_contact_updated_at: datetime | None = None) -> str:
+    stamps: list[datetime] = [book.updated_at]
+    if latest_contact_updated_at is not None:
+        stamps.append(latest_contact_updated_at)
+    return max(stamps).isoformat()
+
+
+def _address_list_source_revision(address_list: AddressList, latest_entry_updated_at: datetime | None = None) -> str:
+    stamps: list[datetime] = [address_list.updated_at]
+    if latest_entry_updated_at is not None:
+        stamps.append(latest_entry_updated_at)
+    return max(stamps).isoformat()

src/govoplan_addresses/backend/carddav.py

@@ -0,0 +1,488 @@
+from __future__ import annotations
+
+import base64
+import urllib.error
+import urllib.parse
+import urllib.request
+from dataclasses import dataclass, field
+from typing import Any, Mapping, Protocol
+
+from defusedxml import ElementTree as SafeElementTree
+
+
+class AddressCardDAVError(RuntimeError):
+    pass
+
+
+class AddressCardDAVSyncUnsupported(AddressCardDAVError):
+    pass
+
+
+class AddressCardDAVNotFound(AddressCardDAVError):
+    pass
+
+
+class AddressCardDAVPreconditionFailed(AddressCardDAVError):
+    pass
+
+
+class AddressCardDAVTransport(Protocol):
+    def __call__(self, method: str, url: str, headers: Mapping[str, str], body: bytes | None, timeout: int) -> tuple[int, Mapping[str, str], bytes]:
+        ...
+
+
+@dataclass(frozen=True, slots=True)
+class AddressCardDAVObject:
+    href: str
+    etag: str | None = None
+    address_data: str | None = None
+    deleted: bool = False
+
+
+@dataclass(frozen=True, slots=True)
+class AddressCardDAVReportResult:
+    objects: list[AddressCardDAVObject] = field(default_factory=list)
+    sync_token: str | None = None
+    ctag: str | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class AddressCardDAVAddressBook:
+    collection_url: str
+    href: str
+    display_name: str | None = None
+    description: str | None = None
+    ctag: str | None = None
+    sync_token: str | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class AddressCardDAVWriteResult:
+    href: str
+    etag: str | None = None
+    status: int = 0
+
+
+@dataclass(frozen=True, slots=True)
+class _DiscoveryResponse:
+    href: str
+    display_name: str | None = None
+    description: str | None = None
+    ctag: str | None = None
+    sync_token: str | None = None
+    is_addressbook: bool = False
+    principal_hrefs: tuple[str, ...] = ()
+    addressbook_home_set_hrefs: tuple[str, ...] = ()
+
+
+@dataclass(slots=True)
+class _DiscoveryDraft:
+    display_name: str | None = None
+    description: str | None = None
+    ctag: str | None = None
+    sync_token: str | None = None
+    is_addressbook: bool = False
+    principal_hrefs: list[str] = field(default_factory=list)
+    addressbook_home_set_hrefs: list[str] = field(default_factory=list)
+
+
+class AddressCardDAVClient:
+    def __init__(
+        self,
+        *,
+        collection_url: str,
+        username: str | None = None,
+        password: str | None = None,
+        bearer_token: str | None = None,
+        timeout: int = 30,
+        transport: AddressCardDAVTransport | None = None,
+    ) -> None:
+        self.collection_url = ensure_collection_url(collection_url)
+        self.username = username
+        self.password = password
+        self.bearer_token = bearer_token
+        self.timeout = timeout
+        self.transport = transport or urllib_transport
+
+    def propfind_collection(self) -> AddressCardDAVReportResult:
+        body = b"""<?xml version="1.0" encoding="utf-8"?>
+<D:propfind xmlns:D="DAV:" xmlns:CS="http://calendarserver.org/ns/">
+  <D:prop>
+    <D:displayname/>
+    <D:sync-token/>
+    <CS:getctag/>
+  </D:prop>
+</D:propfind>"""
+        payload = self.request("PROPFIND", self.collection_url, body=body, depth="0", expected={207})
+        return parse_multistatus(payload)
+
+    def discover_addressbooks(self) -> list[AddressCardDAVAddressBook]:
+        start_url = self.collection_url
+        addressbooks: dict[str, AddressCardDAVAddressBook] = {}
+        home_urls: list[str] = []
+        principal_urls: list[str] = []
+        visited_urls: set[tuple[str, str]] = set()
+        errors: list[str] = []
+
+        def add_home_href(base_url: str, href: str) -> None:
+            url = ensure_collection_url(absolute_dav_url(base_url, href))
+            if url not in home_urls:
+                home_urls.append(url)
+
+        def add_principal_href(base_url: str, href: str) -> None:
+            url = ensure_collection_url(absolute_dav_url(base_url, href))
+            if url not in principal_urls:
+                principal_urls.append(url)
+
+        def add_addressbook(base_url: str, response: _DiscoveryResponse) -> None:
+            if not response.is_addressbook:
+                return
+            url = ensure_collection_url(absolute_dav_url(base_url, response.href or base_url))
+            addressbooks[url] = AddressCardDAVAddressBook(
+                collection_url=url,
+                href=response.href,
+                display_name=response.display_name,
+                description=response.description,
+                ctag=response.ctag,
+                sync_token=response.sync_token,
+            )
+
+        def propfind(url: str, depth: str) -> list[_DiscoveryResponse]:
+            key = (url, depth)
+            if key in visited_urls:
+                return []
+            visited_urls.add(key)
+            return self.propfind_discovery(url, depth=depth)
+
+        try:
+            for response in propfind(start_url, "0"):
+                add_addressbook(start_url, response)
+                for href in response.addressbook_home_set_hrefs:
+                    add_home_href(start_url, href)
+                for href in response.principal_hrefs:
+                    add_principal_href(start_url, href)
+        except AddressCardDAVError as exc:
+            errors.append(str(exc))
+
+        for principal_url in principal_urls[:6]:
+            try:
+                for response in propfind(principal_url, "0"):
+                    for href in response.addressbook_home_set_hrefs:
+                        add_home_href(principal_url, href)
+            except AddressCardDAVError as exc:
+                errors.append(str(exc))
+
+        if not home_urls:
+            home_urls.append(start_url)
+
+        for home_url in home_urls:
+            try:
+                for response in propfind(home_url, "1"):
+                    add_addressbook(home_url, response)
+            except AddressCardDAVError as exc:
+                errors.append(str(exc))
+
+        if not addressbooks and errors:
+            raise AddressCardDAVError(f"CardDAV discovery did not find any address books: {errors[0]}")
+        return sorted(addressbooks.values(), key=lambda item: ((item.display_name or item.collection_url).lower(), item.collection_url))
+
+    def propfind_discovery(self, url: str, *, depth: str) -> list[_DiscoveryResponse]:
+        body = b"""<?xml version="1.0" encoding="utf-8"?>
+<D:propfind xmlns:D="DAV:" xmlns:CARD="urn:ietf:params:xml:ns:carddav" xmlns:CS="http://calendarserver.org/ns/">
+  <D:prop>
+    <D:displayname/>
+    <D:current-user-principal/>
+    <D:principal-URL/>
+    <D:resourcetype/>
+    <D:sync-token/>
+    <CARD:addressbook-home-set/>
+    <CARD:addressbook-description/>
+    <CS:getctag/>
+  </D:prop>
+</D:propfind>"""
+        payload = self.request("PROPFIND", ensure_collection_url(url), body=body, depth=depth, expected={207})
+        return parse_discovery_multistatus(payload)
+
+    def list_objects(self) -> AddressCardDAVReportResult:
+        body = b"""<?xml version="1.0" encoding="utf-8"?>
+<CARD:addressbook-query xmlns:D="DAV:" xmlns:CARD="urn:ietf:params:xml:ns:carddav">
+  <D:prop>
+    <D:getetag/>
+    <CARD:address-data/>
+  </D:prop>
+</CARD:addressbook-query>"""
+        payload = self.request("REPORT", self.collection_url, body=body, depth="1", expected={207})
+        return parse_multistatus(payload)
+
+    def sync_collection(self, sync_token: str) -> AddressCardDAVReportResult:
+        body = f"""<?xml version="1.0" encoding="utf-8"?>
+<D:sync-collection xmlns:D="DAV:" xmlns:CARD="urn:ietf:params:xml:ns:carddav">
+  <D:sync-token>{xml_escape(sync_token)}</D:sync-token>
+  <D:sync-level>1</D:sync-level>
+  <D:prop>
+    <D:getetag/>
+    <CARD:address-data/>
+  </D:prop>
+</D:sync-collection>""".encode("utf-8")
+        try:
+            payload = self.request("REPORT", self.collection_url, body=body, depth="1", expected={207})
+        except AddressCardDAVError as exc:
+            raise AddressCardDAVSyncUnsupported(str(exc)) from exc
+        return parse_multistatus(payload)
+
+    def fetch_object(self, href: str) -> str:
+        payload = self.request("GET", self.object_url(href), body=None, depth=None, expected={200})
+        return payload.decode("utf-8")
+
+    def put_object(self, href: str, vcard: str, *, etag: str | None = None, create: bool = False, overwrite: bool = False) -> AddressCardDAVWriteResult:
+        headers = {"Content-Type": "text/vcard; charset=utf-8"}
+        if create:
+            headers["If-None-Match"] = "*"
+        elif etag and not overwrite:
+            headers["If-Match"] = etag
+        elif not overwrite:
+            raise AddressCardDAVPreconditionFailed(f"PUT {href} requires an ETag or explicit overwrite.")
+        status, response_headers, _payload = self.request_raw(
+            "PUT",
+            self.object_url(href),
+            body=vcard.encode("utf-8"),
+            depth=None,
+            expected={200, 201, 204},
+            extra_headers=headers,
+        )
+        return AddressCardDAVWriteResult(href=href, etag=response_etag(response_headers), status=status)
+
+    def delete_object(self, href: str, *, etag: str | None = None, overwrite: bool = False) -> AddressCardDAVWriteResult:
+        headers: dict[str, str] = {}
+        if etag and not overwrite:
+            headers["If-Match"] = etag
+        elif not overwrite:
+            raise AddressCardDAVPreconditionFailed(f"DELETE {href} requires an ETag or explicit overwrite.")
+        status, response_headers, _payload = self.request_raw(
+            "DELETE",
+            self.object_url(href),
+            body=None,
+            depth=None,
+            expected={200, 202, 204, 404},
+            extra_headers=headers,
+        )
+        return AddressCardDAVWriteResult(href=href, etag=response_etag(response_headers), status=status)
+
+    def object_url(self, href: str) -> str:
+        return urllib.parse.urljoin(self.collection_url, href)
+
+    def request(self, method: str, url: str, *, body: bytes | None, depth: str | None, expected: set[int]) -> bytes:
+        _status, _headers, payload = self.request_raw(method, url, body=body, depth=depth, expected=expected)
+        return payload
+
+    def request_raw(
+        self,
+        method: str,
+        url: str,
+        *,
+        body: bytes | None,
+        depth: str | None,
+        expected: set[int],
+        extra_headers: Mapping[str, str] | None = None,
+    ) -> tuple[int, Mapping[str, str], bytes]:
+        headers: dict[str, str] = {
+            "Accept": "application/xml,text/vcard,*/*",
+            "User-Agent": "govoplan-addresses-carddav/0.1",
+        }
+        if body is not None:
+            headers["Content-Type"] = "application/xml; charset=utf-8"
+        if depth is not None:
+            headers["Depth"] = depth
+        if self.bearer_token:
+            headers["Authorization"] = f"Bearer {self.bearer_token}"
+        elif self.username and self.password:
+            token = base64.b64encode(f"{self.username}:{self.password}".encode("utf-8")).decode("ascii")
+            headers["Authorization"] = f"Basic {token}"
+        if extra_headers:
+            headers.update(dict(extra_headers))
+        status, response_headers, payload = self.transport(method, url, headers, body, self.timeout)
+        if status not in expected:
+            if status == 412:
+                raise AddressCardDAVPreconditionFailed(f"{method} {url} returned HTTP {status}")
+            if status == 404:
+                raise AddressCardDAVNotFound(f"{method} {url} returned HTTP {status}")
+            raise AddressCardDAVError(f"{method} {url} returned HTTP {status}")
+        return status, response_headers, payload
+
+
+def urllib_transport(method: str, url: str, headers: Mapping[str, str], body: bytes | None, timeout: int) -> tuple[int, Mapping[str, str], bytes]:
+    url = validate_http_url(url)
+    try:
+        request = urllib.request.Request(url, data=body, headers=dict(headers), method=method)
+        with urllib.request.urlopen(request, timeout=timeout) as response:  # noqa: S310 - validated CardDAV HTTP(S) URL.  # nosec B310
+            return response.status, dict(response.headers.items()), response.read()
+    except urllib.error.HTTPError as exc:
+        return exc.code, dict(exc.headers.items()), exc.read()
+    except urllib.error.URLError as exc:
+        raise AddressCardDAVError(f"{method} {url} failed: {exc.reason}") from exc
+    except ValueError as exc:
+        raise AddressCardDAVError(f"{method} {url} failed: {exc}") from exc
+
+
+def parse_multistatus(payload: bytes) -> AddressCardDAVReportResult:
+    try:
+        root = SafeElementTree.fromstring(payload)
+    except SafeElementTree.ParseError as exc:
+        raise AddressCardDAVError(f"Invalid CardDAV XML response: {exc}") from exc
+    objects: list[AddressCardDAVObject] = []
+    sync_token = first_child_text(root, "sync-token")
+    ctag = first_child_text(root, "getctag")
+    for response in child_elements(root, "response"):
+        href = first_child_text(response, "href")
+        if not href:
+            continue
+        deleted = False
+        etag = None
+        address_data = None
+        for propstat in child_elements(response, "propstat"):
+            status = first_child_text(propstat, "status") or ""
+            prop = first_child(propstat, "prop")
+            if prop is None:
+                continue
+            if " 404 " in status or status.endswith(" 404"):
+                deleted = True
+                continue
+            if " 200 " not in status and not status.endswith(" 200"):
+                continue
+            etag = first_child_text(prop, "getetag") or etag
+            address_data = first_child_text(prop, "address-data") or address_data
+            sync_token = first_child_text(prop, "sync-token") or sync_token
+            ctag = first_child_text(prop, "getctag") or ctag
+        objects.append(AddressCardDAVObject(href=href, etag=strip_weak_etag(etag), address_data=address_data, deleted=deleted))
+    return AddressCardDAVReportResult(objects=objects, sync_token=sync_token, ctag=ctag)
+
+
+def parse_discovery_multistatus(payload: bytes) -> list[_DiscoveryResponse]:
+    try:
+        root = SafeElementTree.fromstring(payload)
+    except SafeElementTree.ParseError as exc:
+        raise AddressCardDAVError(f"Invalid CardDAV XML response: {exc}") from exc
+    return [parsed for response in child_elements(root, "response") if (parsed := _parse_discovery_response(response)) is not None]
+
+
+def _parse_discovery_response(response: Any) -> _DiscoveryResponse | None:
+    href = first_child_text(response, "href")
+    if not href:
+        return None
+    draft = _DiscoveryDraft()
+    for propstat in child_elements(response, "propstat"):
+        _apply_discovery_propstat(draft, propstat)
+    return _DiscoveryResponse(
+        href=href,
+        display_name=draft.display_name,
+        description=draft.description,
+        ctag=draft.ctag,
+        sync_token=draft.sync_token,
+        is_addressbook=draft.is_addressbook,
+        principal_hrefs=dedupe_tuple(draft.principal_hrefs),
+        addressbook_home_set_hrefs=dedupe_tuple(draft.addressbook_home_set_hrefs),
+    )
+
+
+def _apply_discovery_propstat(draft: _DiscoveryDraft, propstat: Any) -> None:
+    if not discovery_propstat_is_success(propstat):
+        return
+    prop = first_child(propstat, "prop")
+    if prop is None:
+        return
+    for item in prop:
+        _apply_discovery_property(draft, item)
+
+
+def discovery_propstat_is_success(propstat: Any) -> bool:
+    status = first_child_text(propstat, "status") or ""
+    return not status or " 200 " in status or status.endswith(" 200") or " 207 " in status
+
+
+def _apply_discovery_property(draft: _DiscoveryDraft, item: Any) -> None:
+    name = local_name(item.tag)
+    text = item.text.strip() if item.text else ""
+    if name == "displayname" and text:
+        draft.display_name = text
+    elif name == "addressbook-description" and text:
+        draft.description = text
+    elif name == "getctag" and text:
+        draft.ctag = text
+    elif name == "sync-token" and text:
+        draft.sync_token = text
+    elif name == "resourcetype":
+        draft.is_addressbook = draft.is_addressbook or any(local_name(child.tag) == "addressbook" for child in item)
+    elif name in {"current-user-principal", "principal-URL"}:
+        draft.principal_hrefs.extend(nested_href_texts(item))
+    elif name == "addressbook-home-set":
+        draft.addressbook_home_set_hrefs.extend(nested_href_texts(item))
+
+
+def dedupe_tuple(values: list[str]) -> tuple[str, ...]:
+    return tuple(dict.fromkeys(values))
+
+
+def ensure_collection_url(value: str) -> str:
+    value = value.strip()
+    if value and "://" not in value and not value.startswith("/"):
+        value = f"https://{value}"
+    url = validate_http_url(value)
+    return url if url.endswith("/") else f"{url}/"
+
+
+def validate_http_url(value: str) -> str:
+    parsed = urllib.parse.urlparse(value)
+    if parsed.scheme not in {"http", "https"} or not parsed.netloc:
+        raise AddressCardDAVError("CardDAV URL must be an absolute HTTP(S) URL")
+    if parsed.username or parsed.password:
+        raise AddressCardDAVError("CardDAV URL must not include embedded credentials")
+    return urllib.parse.urlunparse(parsed)
+
+
+def absolute_dav_url(base_url: str, href: str) -> str:
+    return urllib.parse.urljoin(ensure_collection_url(base_url), href)
+
+
+def strip_weak_etag(value: str | None) -> str | None:
+    return value.strip() if value else None
+
+
+def response_etag(headers: Mapping[str, str]) -> str | None:
+    for key, value in headers.items():
+        if key.lower() == "etag":
+            return strip_weak_etag(value)
+    return None
+
+
+def xml_escape(value: str) -> str:
+    return value.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;")
+
+
+def first_child(element: Any, name: str) -> Any | None:
+    for child in element:
+        if local_name(child.tag) == name:
+            return child
+    return None
+
+
+def first_child_text(element: Any, name: str) -> str | None:
+    found = first_child(element, name)
+    if found is None or found.text is None:
+        return None
+    return found.text.strip()
+
+
+def child_elements(element: Any, name: str) -> list[Any]:
+    return [child for child in element if local_name(child.tag) == name]
+
+
+def nested_href_texts(element: Any) -> list[str]:
+    hrefs: list[str] = []
+    for child in element.iter():
+        if local_name(child.tag) == "href" and child.text and child.text.strip():
+            hrefs.append(child.text.strip())
+    return hrefs
+
+
+def local_name(tag: str) -> str:
+    return tag.rsplit("}", 1)[-1] if "}" in tag else tag

src/govoplan_addresses/backend/db/__init__.py

@@ -0,0 +1,2 @@
+"""Address module database models."""
+

src/govoplan_addresses/backend/db/models.py

@@ -0,0 +1,330 @@
+from __future__ import annotations
+
+import uuid
+from datetime import datetime
+from typing import Any
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, Index, Integer, JSON, String, Text, text
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from govoplan_core.db.base import Base, TimestampMixin
+
+
+def new_uuid() -> str:
+    return str(uuid.uuid4())
+
+
+class AddressBook(Base, TimestampMixin):
+    __tablename__ = "addresses_address_books"
+    __table_args__ = (
+        Index("ix_addresses_address_books_scope", "tenant_id", "scope_type", "scope_id"),
+        Index(
+            "uq_addresses_address_books_active_name",
+            "tenant_id",
+            "scope_type",
+            "scope_id",
+            "name",
+            unique=True,
+            sqlite_where=text("deleted_at IS NULL"),
+            postgresql_where=text("deleted_at IS NULL"),
+        ),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    tenant_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    scope_type: Mapped[str] = mapped_column(String(20), nullable=False, index=True)
+    scope_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    name: Mapped[str] = mapped_column(String(255), nullable=False)
+    description: Mapped[str | None] = mapped_column(Text)
+    source_kind: Mapped[str] = mapped_column(String(30), default="local", nullable=False, index=True)
+    source_ref: Mapped[str | None] = mapped_column(String(1000))
+    read_only: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
+    sync_status: Mapped[str | None] = mapped_column(String(30))
+    sync_error: Mapped[str | None] = mapped_column(Text)
+    created_by_account_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    updated_by_account_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    deleted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    metadata_: Mapped[dict[str, Any] | None] = mapped_column("metadata", JSON, nullable=True)
+
+    contacts: Mapped[list["Contact"]] = relationship(back_populates="address_book", cascade="all, delete-orphan")
+    address_lists: Mapped[list["AddressList"]] = relationship(back_populates="address_book", cascade="all, delete-orphan")
+    sync_sources: Mapped[list["AddressSyncSource"]] = relationship(back_populates="address_book", cascade="all, delete-orphan")
+
+
+class Contact(Base, TimestampMixin):
+    __tablename__ = "addresses_contacts"
+    __table_args__ = (
+        Index("ix_addresses_contacts_book_name", "address_book_id", "display_name"),
+        Index("ix_addresses_contacts_tenant_name", "tenant_id", "display_name"),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    tenant_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    address_book_id: Mapped[str] = mapped_column(
+        ForeignKey("addresses_address_books.id", ondelete="CASCADE"),
+        nullable=False,
+        index=True,
+    )
+    display_name: Mapped[str] = mapped_column(String(255), nullable=False, index=True)
+    given_name: Mapped[str | None] = mapped_column(String(255))
+    family_name: Mapped[str | None] = mapped_column(String(255))
+    organization: Mapped[str | None] = mapped_column(String(255), index=True)
+    role_title: Mapped[str | None] = mapped_column(String(255))
+    note: Mapped[str | None] = mapped_column(Text)
+    tags: Mapped[list[str]] = mapped_column(JSON, default=list, nullable=False)
+    source_kind: Mapped[str] = mapped_column(String(30), default="local", nullable=False, index=True)
+    source_ref: Mapped[str | None] = mapped_column(String(1000))
+    source_payload_kind: Mapped[str | None] = mapped_column(String(40), nullable=True, index=True)
+    source_payload_raw: Mapped[str | None] = mapped_column(Text, nullable=True)
+    source_revision: Mapped[str | None] = mapped_column(String(255), nullable=True, index=True)
+    provenance: Mapped[dict[str, Any]] = mapped_column(JSON, default=dict, nullable=False)
+    created_by_account_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    updated_by_account_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    deleted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    metadata_: Mapped[dict[str, Any] | None] = mapped_column("metadata", JSON, nullable=True)
+
+    address_book: Mapped[AddressBook] = relationship(back_populates="contacts")
+    emails: Mapped[list["ContactEmail"]] = relationship(back_populates="contact", cascade="all, delete-orphan", order_by="ContactEmail.order_index")
+    phones: Mapped[list["ContactPhone"]] = relationship(back_populates="contact", cascade="all, delete-orphan", order_by="ContactPhone.order_index")
+    postal_addresses: Mapped[list["ContactPostalAddress"]] = relationship(
+        back_populates="contact",
+        cascade="all, delete-orphan",
+        order_by="ContactPostalAddress.order_index",
+    )
+    address_list_entries: Mapped[list["AddressListEntry"]] = relationship(back_populates="contact", cascade="all, delete-orphan")
+
+
+class ContactEmail(Base, TimestampMixin):
+    __tablename__ = "addresses_contact_emails"
+    __table_args__ = (
+        Index("ix_addresses_contact_emails_lookup", "email"),
+        Index("ix_addresses_contact_emails_contact_primary", "contact_id", "is_primary"),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    contact_id: Mapped[str] = mapped_column(ForeignKey("addresses_contacts.id", ondelete="CASCADE"), nullable=False, index=True)
+    label: Mapped[str | None] = mapped_column(String(80))
+    email: Mapped[str] = mapped_column(String(320), nullable=False, index=True)
+    is_primary: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
+    order_index: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+
+    contact: Mapped[Contact] = relationship(back_populates="emails")
+    address_list_entries: Mapped[list["AddressListEntry"]] = relationship(back_populates="contact_email")
+
+
+class ContactPhone(Base, TimestampMixin):
+    __tablename__ = "addresses_contact_phones"
+    __table_args__ = (Index("ix_addresses_contact_phones_contact_primary", "contact_id", "is_primary"),)
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    contact_id: Mapped[str] = mapped_column(ForeignKey("addresses_contacts.id", ondelete="CASCADE"), nullable=False, index=True)
+    label: Mapped[str | None] = mapped_column(String(80))
+    phone: Mapped[str] = mapped_column(String(100), nullable=False)
+    is_primary: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
+    order_index: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+
+    contact: Mapped[Contact] = relationship(back_populates="phones")
+
+
+class ContactPostalAddress(Base, TimestampMixin):
+    __tablename__ = "addresses_contact_postal_addresses"
+    __table_args__ = (Index("ix_addresses_contact_postal_addresses_contact_primary", "contact_id", "is_primary"),)
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    contact_id: Mapped[str] = mapped_column(ForeignKey("addresses_contacts.id", ondelete="CASCADE"), nullable=False, index=True)
+    label: Mapped[str | None] = mapped_column(String(80))
+    street: Mapped[str | None] = mapped_column(String(500))
+    postal_code: Mapped[str | None] = mapped_column(String(40))
+    locality: Mapped[str | None] = mapped_column(String(255))
+    region: Mapped[str | None] = mapped_column(String(255))
+    country: Mapped[str | None] = mapped_column(String(255))
+    is_primary: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
+    order_index: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+
+    contact: Mapped[Contact] = relationship(back_populates="postal_addresses")
+    address_list_entries: Mapped[list["AddressListEntry"]] = relationship(back_populates="contact_postal_address")
+
+
+class AddressList(Base, TimestampMixin):
+    __tablename__ = "addresses_address_lists"
+    __table_args__ = (
+        Index("ix_addresses_address_lists_book_name", "address_book_id", "name"),
+        Index(
+            "uq_addresses_address_lists_active_name",
+            "address_book_id",
+            "name",
+            unique=True,
+            sqlite_where=text("deleted_at IS NULL"),
+            postgresql_where=text("deleted_at IS NULL"),
+        ),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    tenant_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    address_book_id: Mapped[str] = mapped_column(ForeignKey("addresses_address_books.id", ondelete="CASCADE"), nullable=False, index=True)
+    name: Mapped[str] = mapped_column(String(255), nullable=False)
+    description: Mapped[str | None] = mapped_column(Text)
+    source_kind: Mapped[str] = mapped_column(String(30), default="local", nullable=False, index=True)
+    source_ref: Mapped[str | None] = mapped_column(String(1000))
+    read_only: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
+    created_by_account_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    updated_by_account_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    deleted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    metadata_: Mapped[dict[str, Any] | None] = mapped_column("metadata", JSON, nullable=True)
+
+    address_book: Mapped[AddressBook] = relationship(back_populates="address_lists")
+    entries: Mapped[list["AddressListEntry"]] = relationship(
+        back_populates="address_list",
+        cascade="all, delete-orphan",
+        order_by="AddressListEntry.order_index",
+    )
+
+
+class AddressListEntry(Base, TimestampMixin):
+    __tablename__ = "addresses_address_list_entries"
+    __table_args__ = (
+        Index("ix_addresses_address_list_entries_list_order", "address_list_id", "order_index"),
+        Index("ix_addresses_address_list_entries_contact", "contact_id"),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    address_list_id: Mapped[str] = mapped_column(ForeignKey("addresses_address_lists.id", ondelete="CASCADE"), nullable=False, index=True)
+    contact_id: Mapped[str] = mapped_column(ForeignKey("addresses_contacts.id", ondelete="CASCADE"), nullable=False, index=True)
+    contact_email_id: Mapped[str | None] = mapped_column(ForeignKey("addresses_contact_emails.id", ondelete="SET NULL"), nullable=True, index=True)
+    contact_postal_address_id: Mapped[str | None] = mapped_column(
+        ForeignKey("addresses_contact_postal_addresses.id", ondelete="SET NULL"),
+        nullable=True,
+        index=True,
+    )
+    target_kind: Mapped[str] = mapped_column(String(30), default="contact", nullable=False, index=True)
+    label: Mapped[str | None] = mapped_column(String(255))
+    order_index: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+    metadata_: Mapped[dict[str, Any] | None] = mapped_column("metadata", JSON, nullable=True)
+
+    address_list: Mapped[AddressList] = relationship(back_populates="entries")
+    contact: Mapped[Contact] = relationship(back_populates="address_list_entries")
+    contact_email: Mapped[ContactEmail | None] = relationship(back_populates="address_list_entries")
+    contact_postal_address: Mapped[ContactPostalAddress | None] = relationship(back_populates="address_list_entries")
+
+
+class AddressSyncSource(Base, TimestampMixin):
+    __tablename__ = "addresses_sync_sources"
+    __table_args__ = (
+        Index("ix_addresses_sync_sources_book_status", "address_book_id", "status"),
+        Index("ix_addresses_sync_sources_connector", "tenant_id", "connector_type"),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    tenant_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    address_book_id: Mapped[str] = mapped_column(ForeignKey("addresses_address_books.id", ondelete="CASCADE"), nullable=False, index=True)
+    connector_type: Mapped[str] = mapped_column(String(60), nullable=False, index=True)
+    display_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    external_account_ref: Mapped[str | None] = mapped_column(String(1000), nullable=True)
+    external_address_book_ref: Mapped[str | None] = mapped_column(String(1000), nullable=True)
+    sync_direction: Mapped[str] = mapped_column(String(30), default="read_only", nullable=False, index=True)
+    read_only: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
+    enabled: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False, index=True)
+    status: Mapped[str] = mapped_column(String(30), default="idle", nullable=False, index=True)
+    sync_token: Mapped[str | None] = mapped_column(Text, nullable=True)
+    etag: Mapped[str | None] = mapped_column(String(1000), nullable=True)
+    remote_revision: Mapped[str | None] = mapped_column(String(1000), nullable=True)
+    last_attempted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    last_success_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    last_error: Mapped[str | None] = mapped_column(Text, nullable=True)
+    last_diagnostic: Mapped[dict[str, Any] | None] = mapped_column(JSON, nullable=True)
+    created_by_account_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    updated_by_account_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    metadata_: Mapped[dict[str, Any] | None] = mapped_column("metadata", JSON, nullable=True)
+
+    address_book: Mapped[AddressBook] = relationship(back_populates="sync_sources")
+    tombstones: Mapped[list["AddressSyncTombstone"]] = relationship(back_populates="sync_source", cascade="all, delete-orphan")
+    conflicts: Mapped[list["AddressSyncConflict"]] = relationship(back_populates="sync_source", cascade="all, delete-orphan")
+    diagnostics: Mapped[list["AddressSyncDiagnostic"]] = relationship(back_populates="sync_source", cascade="all, delete-orphan")
+
+
+class AddressSyncTombstone(Base, TimestampMixin):
+    __tablename__ = "addresses_sync_tombstones"
+    __table_args__ = (
+        Index("ix_addresses_sync_tombstones_source_remote", "sync_source_id", "remote_uid"),
+        Index("ix_addresses_sync_tombstones_source_href", "sync_source_id", "resource_href"),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    tenant_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    sync_source_id: Mapped[str] = mapped_column(ForeignKey("addresses_sync_sources.id", ondelete="CASCADE"), nullable=False, index=True)
+    address_book_id: Mapped[str] = mapped_column(ForeignKey("addresses_address_books.id", ondelete="CASCADE"), nullable=False, index=True)
+    contact_id: Mapped[str | None] = mapped_column(ForeignKey("addresses_contacts.id", ondelete="SET NULL"), nullable=True, index=True)
+    remote_uid: Mapped[str | None] = mapped_column(String(1000), nullable=True)
+    resource_href: Mapped[str | None] = mapped_column(String(1000), nullable=True)
+    local_deleted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    remote_deleted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    synced_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    metadata_: Mapped[dict[str, Any] | None] = mapped_column("metadata", JSON, nullable=True)
+
+    sync_source: Mapped[AddressSyncSource] = relationship(back_populates="tombstones")
+    address_book: Mapped[AddressBook] = relationship()
+    contact: Mapped[Contact | None] = relationship()
+
+
+class AddressSyncConflict(Base, TimestampMixin):
+    __tablename__ = "addresses_sync_conflicts"
+    __table_args__ = (
+        Index("ix_addresses_sync_conflicts_source_status", "sync_source_id", "status"),
+        Index("ix_addresses_sync_conflicts_contact_status", "contact_id", "status"),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    tenant_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    sync_source_id: Mapped[str] = mapped_column(ForeignKey("addresses_sync_sources.id", ondelete="CASCADE"), nullable=False, index=True)
+    address_book_id: Mapped[str] = mapped_column(ForeignKey("addresses_address_books.id", ondelete="CASCADE"), nullable=False, index=True)
+    contact_id: Mapped[str | None] = mapped_column(ForeignKey("addresses_contacts.id", ondelete="SET NULL"), nullable=True, index=True)
+    remote_uid: Mapped[str | None] = mapped_column(String(1000), nullable=True)
+    resource_href: Mapped[str | None] = mapped_column(String(1000), nullable=True)
+    field_path: Mapped[str] = mapped_column(String(500), nullable=False)
+    local_value: Mapped[dict[str, Any] | None] = mapped_column(JSON, nullable=True)
+    remote_value: Mapped[dict[str, Any] | None] = mapped_column(JSON, nullable=True)
+    local_updated_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    remote_updated_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    status: Mapped[str] = mapped_column(String(30), default="open", nullable=False, index=True)
+    resolution: Mapped[str | None] = mapped_column(String(60), nullable=True)
+    resolved_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True, index=True)
+    resolved_by_account_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    metadata_: Mapped[dict[str, Any] | None] = mapped_column("metadata", JSON, nullable=True)
+
+    sync_source: Mapped[AddressSyncSource] = relationship(back_populates="conflicts")
+    address_book: Mapped[AddressBook] = relationship()
+    contact: Mapped[Contact | None] = relationship()
+
+
+class AddressSyncDiagnostic(Base, TimestampMixin):
+    __tablename__ = "addresses_sync_diagnostics"
+    __table_args__ = (
+        Index("ix_addresses_sync_diagnostics_source_created", "sync_source_id", "created_at"),
+        Index("ix_addresses_sync_diagnostics_source_severity", "sync_source_id", "severity"),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    tenant_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
+    sync_source_id: Mapped[str] = mapped_column(ForeignKey("addresses_sync_sources.id", ondelete="CASCADE"), nullable=False, index=True)
+    severity: Mapped[str] = mapped_column(String(30), default="info", nullable=False, index=True)
+    code: Mapped[str] = mapped_column(String(120), nullable=False, index=True)
+    message: Mapped[str] = mapped_column(Text, nullable=False)
+    details: Mapped[dict[str, Any] | None] = mapped_column(JSON, nullable=True)
+
+    sync_source: Mapped[AddressSyncSource] = relationship(back_populates="diagnostics")
+
+
+__all__ = [
+    "AddressBook",
+    "AddressList",
+    "AddressListEntry",
+    "AddressSyncConflict",
+    "AddressSyncDiagnostic",
+    "AddressSyncSource",
+    "AddressSyncTombstone",
+    "Contact",
+    "ContactEmail",
+    "ContactPhone",
+    "ContactPostalAddress",
+    "new_uuid",
+]

src/govoplan_addresses/backend/manifest.py

@@ -0,0 +1,195 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from govoplan_addresses.backend.capabilities import (
+    CAPABILITY_ADDRESSES_CONTACT_WRITER,
+    CAPABILITY_ADDRESSES_LOOKUP,
+    CAPABILITY_ADDRESSES_RECIPIENT_SOURCE,
+)
+from govoplan_addresses.backend.db import models as addresses_models  # noqa: F401 - populate address ORM metadata
+from govoplan_core.core.access import CAPABILITY_AUTH_PERMISSION_EVALUATOR, CAPABILITY_AUTH_PRINCIPAL_RESOLVER
+from govoplan_core.core.module_guards import drop_table_retirement_provider, persistent_table_uninstall_guard
+from govoplan_core.core.modules import (
+    DocumentationTopic,
+    FrontendModule,
+    FrontendRoute,
+    MigrationSpec,
+    ModuleContext,
+    ModuleInterfaceProvider,
+    ModuleManifest,
+    NavItem,
+    PermissionDefinition,
+    RoleTemplate,
+)
+from govoplan_core.db.base import Base
+
+
+def _permission(scope: str, label: str, description: str) -> PermissionDefinition:
+    module_id, resource, action = scope.split(":", 2)
+    return PermissionDefinition(
+        scope=scope,
+        label=label,
+        description=description,
+        category="Addresses",
+        level="tenant",
+        module_id=module_id,
+        resource=resource,
+        action=action,
+    )
+
+
+PERMISSIONS = (
+    _permission("addresses:address_book:read", "View address books", "List address books visible to the current principal."),
+    _permission("addresses:address_book:write", "Manage address books", "Create and edit local address books."),
+    _permission("addresses:address_book:delete", "Delete address books", "Soft-delete local address books."),
+    _permission("addresses:address_book:admin", "Administer address books", "Manage system-scoped address books and future sync sources."),
+    _permission("addresses:address_list:read", "View address lists", "List reusable address lists and their entries."),
+    _permission("addresses:address_list:write", "Manage address lists", "Create and edit reusable address lists."),
+    _permission("addresses:address_list:delete", "Delete address lists", "Soft-delete reusable address lists."),
+    _permission("addresses:contact:read", "View contacts", "List and lookup contacts in visible address books."),
+    _permission("addresses:contact:write", "Manage contacts", "Create and edit local contacts."),
+    _permission("addresses:contact:delete", "Delete contacts", "Soft-delete local contacts."),
+    _permission("addresses:sync:read", "View address sync", "Inspect address sync sources, conflicts, tombstones, and diagnostics."),
+    _permission("addresses:sync:write", "Manage address sync", "Bind address books to external sources and record sync state."),
+    _permission("addresses:sync:admin", "Administer address sync", "Administer address sync connectors and future destructive sync operations."),
+)
+
+
+ROLE_TEMPLATES = (
+    RoleTemplate(
+        slug="address_book_manager",
+        name="Address book manager",
+        description="Manage visible local address books and contacts.",
+        permissions=(
+            "addresses:address_book:read",
+            "addresses:address_book:write",
+            "addresses:address_book:delete",
+            "addresses:address_list:read",
+            "addresses:address_list:write",
+            "addresses:address_list:delete",
+            "addresses:contact:read",
+            "addresses:contact:write",
+            "addresses:contact:delete",
+            "addresses:sync:read",
+            "addresses:sync:write",
+        ),
+    ),
+    RoleTemplate(
+        slug="address_book_reader",
+        name="Address book reader",
+        description="Read visible address books and contacts.",
+        permissions=("addresses:address_book:read", "addresses:address_list:read", "addresses:contact:read", "addresses:sync:read"),
+    ),
+)
+
+
+def _tenant_summary(session, tenant_id: str) -> dict[str, int]:
+    from govoplan_addresses.backend.db.models import AddressBook, AddressList, AddressSyncSource, Contact
+
+    return {
+        "address_books": session.query(AddressBook).filter(AddressBook.tenant_id == tenant_id, AddressBook.deleted_at.is_(None)).count(),
+        "address_lists": session.query(AddressList).filter(AddressList.tenant_id == tenant_id, AddressList.deleted_at.is_(None)).count(),
+        "contacts": session.query(Contact).filter(Contact.tenant_id == tenant_id, Contact.deleted_at.is_(None)).count(),
+        "sync_sources": session.query(AddressSyncSource).filter(AddressSyncSource.tenant_id == tenant_id, AddressSyncSource.enabled.is_(True)).count(),
+    }
+
+
+def _addresses_router(_context: ModuleContext):
+    from govoplan_addresses.backend.router import router
+
+    return router
+
+
+manifest = ModuleManifest(
+    id="addresses",
+    name="Addresses",
+    version="0.1.8",
+    required_capabilities=(CAPABILITY_AUTH_PRINCIPAL_RESOLVER, CAPABILITY_AUTH_PERMISSION_EVALUATOR),
+    optional_dependencies=("campaigns", "mail", "forms", "reporting", "portal", "postbox"),
+    provides_interfaces=(
+        ModuleInterfaceProvider(name=CAPABILITY_ADDRESSES_LOOKUP, version="0.1.8"),
+        ModuleInterfaceProvider(name=CAPABILITY_ADDRESSES_RECIPIENT_SOURCE, version="0.1.8"),
+        ModuleInterfaceProvider(name=CAPABILITY_ADDRESSES_CONTACT_WRITER, version="0.1.8"),
+    ),
+    permissions=PERMISSIONS,
+    route_factory=_addresses_router,
+    role_templates=ROLE_TEMPLATES,
+    tenant_summary_providers=(_tenant_summary,),
+    nav_items=(NavItem(path="/address-book", label="Address Book", icon="book-user", required_any=("addresses:contact:read",), order=80),),
+    frontend=FrontendModule(
+        module_id="addresses",
+        package_name="@govoplan/addresses-webui",
+        routes=(FrontendRoute(path="/address-book", component="AddressBookPage", required_any=("addresses:contact:read",), order=80),),
+        nav_items=(NavItem(path="/address-book", label="Address Book", icon="book-user", required_any=("addresses:contact:read",), order=80),),
+    ),
+    migration_spec=MigrationSpec(
+        module_id="addresses",
+        metadata=Base.metadata,
+        script_location=str(Path(__file__).with_name("migrations") / "versions"),
+        retirement_supported=True,
+        retirement_provider=drop_table_retirement_provider(
+            addresses_models.AddressSyncDiagnostic,
+            addresses_models.AddressSyncConflict,
+            addresses_models.AddressSyncTombstone,
+            addresses_models.AddressSyncSource,
+            addresses_models.AddressListEntry,
+            addresses_models.AddressList,
+            addresses_models.ContactPostalAddress,
+            addresses_models.ContactPhone,
+            addresses_models.ContactEmail,
+            addresses_models.Contact,
+            addresses_models.AddressBook,
+            label="Addresses",
+        ),
+        retirement_notes="Destructive retirement drops address-owned database tables after the installer captures a database snapshot.",
+    ),
+    capability_factories={
+        CAPABILITY_ADDRESSES_LOOKUP: lambda context: __import__("govoplan_addresses.backend.capabilities", fromlist=["lookup_capability"]).lookup_capability(context),
+        CAPABILITY_ADDRESSES_RECIPIENT_SOURCE: lambda context: __import__(
+            "govoplan_addresses.backend.capabilities",
+            fromlist=["recipient_source_capability"],
+        ).recipient_source_capability(context),
+        CAPABILITY_ADDRESSES_CONTACT_WRITER: lambda context: __import__(
+            "govoplan_addresses.backend.capabilities",
+            fromlist=["contact_writer_capability"],
+        ).contact_writer_capability(context),
+    },
+    uninstall_guard_providers=(
+        persistent_table_uninstall_guard(
+            addresses_models.AddressSyncDiagnostic,
+            addresses_models.AddressSyncConflict,
+            addresses_models.AddressSyncTombstone,
+            addresses_models.AddressSyncSource,
+            addresses_models.AddressListEntry,
+            addresses_models.AddressList,
+            addresses_models.AddressBook,
+            addresses_models.Contact,
+            addresses_models.ContactEmail,
+            addresses_models.ContactPhone,
+            addresses_models.ContactPostalAddress,
+            label="Addresses",
+        ),
+    ),
+    documentation=(
+        DocumentationTopic(
+            id="addresses.boundary",
+            title="Reusable address ownership",
+            summary="Reusable person, organization, household, postal, and email recipient sources belong to the addresses module.",
+            body=(
+                "Campaigns may keep immutable campaign-local recipient snapshots, but durable address directories, "
+                "recipient-source definitions, consent metadata, provenance, deduplication, and import/export workflows "
+                "are owned by govoplan-addresses."
+            ),
+            layer="configured",
+            documentation_types=("admin", "user"),
+            audience=("tenant_admin", "operator", "module_admin"),
+            related_modules=("campaigns", "mail", "forms", "reporting", "portal", "postbox"),
+            order=30,
+        ),
+    ),
+)
+
+
+def get_manifest() -> ModuleManifest:
+    return manifest

src/govoplan_addresses/backend/migrations/__init__.py

@@ -0,0 +1,2 @@
+"""Address module migration package."""
+

src/govoplan_addresses/backend/migrations/versions/__init__.py

@@ -0,0 +1,2 @@
+"""Address module Alembic revisions."""
+

src/govoplan_addresses/backend/migrations/versions/b8c9d0e1f2a3_v018_addresses_baseline.py

@@ -0,0 +1,169 @@
+"""v0.1.8 addresses baseline
+
+Revision ID: b8c9d0e1f2a3
+Revises: None
+Create Date: 2026-07-13 00:00:00.000000
+"""
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "b8c9d0e1f2a3"
+down_revision = None
+branch_labels = None
+depends_on = "4f2a9c8e7b6d"
+
+
+def upgrade() -> None:
+    op.create_table(
+        "addresses_address_books",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("tenant_id", sa.String(length=36), nullable=True),
+        sa.Column("scope_type", sa.String(length=20), nullable=False),
+        sa.Column("scope_id", sa.String(length=36), nullable=True),
+        sa.Column("name", sa.String(length=255), nullable=False),
+        sa.Column("description", sa.Text(), nullable=True),
+        sa.Column("source_kind", sa.String(length=30), nullable=False),
+        sa.Column("source_ref", sa.String(length=1000), nullable=True),
+        sa.Column("read_only", sa.Boolean(), nullable=False),
+        sa.Column("sync_status", sa.String(length=30), nullable=True),
+        sa.Column("sync_error", sa.Text(), nullable=True),
+        sa.Column("created_by_account_id", sa.String(length=36), nullable=True),
+        sa.Column("updated_by_account_id", sa.String(length=36), nullable=True),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("metadata", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_address_books")),
+    )
+    op.create_index(op.f("ix_addresses_address_books_created_by_account_id"), "addresses_address_books", ["created_by_account_id"], unique=False)
+    op.create_index(op.f("ix_addresses_address_books_deleted_at"), "addresses_address_books", ["deleted_at"], unique=False)
+    op.create_index("ix_addresses_address_books_scope", "addresses_address_books", ["tenant_id", "scope_type", "scope_id"], unique=False)
+    op.create_index(op.f("ix_addresses_address_books_scope_id"), "addresses_address_books", ["scope_id"], unique=False)
+    op.create_index(op.f("ix_addresses_address_books_scope_type"), "addresses_address_books", ["scope_type"], unique=False)
+    op.create_index(op.f("ix_addresses_address_books_source_kind"), "addresses_address_books", ["source_kind"], unique=False)
+    op.create_index(op.f("ix_addresses_address_books_tenant_id"), "addresses_address_books", ["tenant_id"], unique=False)
+    op.create_index(op.f("ix_addresses_address_books_updated_by_account_id"), "addresses_address_books", ["updated_by_account_id"], unique=False)
+    op.create_index(
+        "uq_addresses_address_books_active_name",
+        "addresses_address_books",
+        ["tenant_id", "scope_type", "scope_id", "name"],
+        unique=True,
+        sqlite_where=sa.text("deleted_at IS NULL"),
+        postgresql_where=sa.text("deleted_at IS NULL"),
+    )
+
+    op.create_table(
+        "addresses_contacts",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("tenant_id", sa.String(length=36), nullable=True),
+        sa.Column("address_book_id", sa.String(length=36), nullable=False),
+        sa.Column("display_name", sa.String(length=255), nullable=False),
+        sa.Column("given_name", sa.String(length=255), nullable=True),
+        sa.Column("family_name", sa.String(length=255), nullable=True),
+        sa.Column("organization", sa.String(length=255), nullable=True),
+        sa.Column("role_title", sa.String(length=255), nullable=True),
+        sa.Column("note", sa.Text(), nullable=True),
+        sa.Column("tags", sa.JSON(), nullable=False),
+        sa.Column("source_kind", sa.String(length=30), nullable=False),
+        sa.Column("source_ref", sa.String(length=1000), nullable=True),
+        sa.Column("provenance", sa.JSON(), nullable=False),
+        sa.Column("created_by_account_id", sa.String(length=36), nullable=True),
+        sa.Column("updated_by_account_id", sa.String(length=36), nullable=True),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("metadata", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["address_book_id"],
+            ["addresses_address_books.id"],
+            name=op.f("fk_addresses_contacts_address_book_id_addresses_address_books"),
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_contacts")),
+    )
+    op.create_index(op.f("ix_addresses_contacts_address_book_id"), "addresses_contacts", ["address_book_id"], unique=False)
+    op.create_index("ix_addresses_contacts_book_name", "addresses_contacts", ["address_book_id", "display_name"], unique=False)
+    op.create_index(op.f("ix_addresses_contacts_created_by_account_id"), "addresses_contacts", ["created_by_account_id"], unique=False)
+    op.create_index(op.f("ix_addresses_contacts_deleted_at"), "addresses_contacts", ["deleted_at"], unique=False)
+    op.create_index(op.f("ix_addresses_contacts_display_name"), "addresses_contacts", ["display_name"], unique=False)
+    op.create_index(op.f("ix_addresses_contacts_organization"), "addresses_contacts", ["organization"], unique=False)
+    op.create_index(op.f("ix_addresses_contacts_source_kind"), "addresses_contacts", ["source_kind"], unique=False)
+    op.create_index(op.f("ix_addresses_contacts_tenant_id"), "addresses_contacts", ["tenant_id"], unique=False)
+    op.create_index("ix_addresses_contacts_tenant_name", "addresses_contacts", ["tenant_id", "display_name"], unique=False)
+    op.create_index(op.f("ix_addresses_contacts_updated_by_account_id"), "addresses_contacts", ["updated_by_account_id"], unique=False)
+
+    op.create_table(
+        "addresses_contact_emails",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("contact_id", sa.String(length=36), nullable=False),
+        sa.Column("label", sa.String(length=80), nullable=True),
+        sa.Column("email", sa.String(length=320), nullable=False),
+        sa.Column("is_primary", sa.Boolean(), nullable=False),
+        sa.Column("order_index", sa.Integer(), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(["contact_id"], ["addresses_contacts.id"], name=op.f("fk_addresses_contact_emails_contact_id_addresses_contacts"), ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_contact_emails")),
+    )
+    op.create_index(op.f("ix_addresses_contact_emails_contact_id"), "addresses_contact_emails", ["contact_id"], unique=False)
+    op.create_index("ix_addresses_contact_emails_contact_primary", "addresses_contact_emails", ["contact_id", "is_primary"], unique=False)
+    op.create_index(op.f("ix_addresses_contact_emails_email"), "addresses_contact_emails", ["email"], unique=False)
+    op.create_index("ix_addresses_contact_emails_lookup", "addresses_contact_emails", ["email"], unique=False)
+
+    op.create_table(
+        "addresses_contact_phones",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("contact_id", sa.String(length=36), nullable=False),
+        sa.Column("label", sa.String(length=80), nullable=True),
+        sa.Column("phone", sa.String(length=100), nullable=False),
+        sa.Column("is_primary", sa.Boolean(), nullable=False),
+        sa.Column("order_index", sa.Integer(), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(["contact_id"], ["addresses_contacts.id"], name=op.f("fk_addresses_contact_phones_contact_id_addresses_contacts"), ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_contact_phones")),
+    )
+    op.create_index(op.f("ix_addresses_contact_phones_contact_id"), "addresses_contact_phones", ["contact_id"], unique=False)
+    op.create_index("ix_addresses_contact_phones_contact_primary", "addresses_contact_phones", ["contact_id", "is_primary"], unique=False)
+
+    op.create_table(
+        "addresses_contact_postal_addresses",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("contact_id", sa.String(length=36), nullable=False),
+        sa.Column("label", sa.String(length=80), nullable=True),
+        sa.Column("street", sa.String(length=500), nullable=True),
+        sa.Column("postal_code", sa.String(length=40), nullable=True),
+        sa.Column("locality", sa.String(length=255), nullable=True),
+        sa.Column("region", sa.String(length=255), nullable=True),
+        sa.Column("country", sa.String(length=255), nullable=True),
+        sa.Column("is_primary", sa.Boolean(), nullable=False),
+        sa.Column("order_index", sa.Integer(), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["contact_id"],
+            ["addresses_contacts.id"],
+            name=op.f("fk_addresses_contact_postal_addresses_contact_id_addresses_contacts"),
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_contact_postal_addresses")),
+    )
+    op.create_index(op.f("ix_addresses_contact_postal_addresses_contact_id"), "addresses_contact_postal_addresses", ["contact_id"], unique=False)
+    op.create_index(
+        "ix_addresses_contact_postal_addresses_contact_primary",
+        "addresses_contact_postal_addresses",
+        ["contact_id", "is_primary"],
+        unique=False,
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("addresses_contact_postal_addresses")
+    op.drop_table("addresses_contact_phones")
+    op.drop_table("addresses_contact_emails")
+    op.drop_table("addresses_contacts")
+    op.drop_table("addresses_address_books")
+

src/govoplan_addresses/backend/migrations/versions/c9d0e1f2a4b_v019_addresses_source_payload.py

@@ -0,0 +1,32 @@
+"""v0.1.9 addresses source payload metadata
+
+Revision ID: c9d0e1f2a4b
+Revises: b8c9d0e1f2a3
+Create Date: 2026-07-13 00:00:00.000000
+"""
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "c9d0e1f2a4b"
+down_revision = "b8c9d0e1f2a3"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column("addresses_contacts", sa.Column("source_payload_kind", sa.String(length=40), nullable=True))
+    op.add_column("addresses_contacts", sa.Column("source_payload_raw", sa.Text(), nullable=True))
+    op.add_column("addresses_contacts", sa.Column("source_revision", sa.String(length=255), nullable=True))
+    op.create_index(op.f("ix_addresses_contacts_source_payload_kind"), "addresses_contacts", ["source_payload_kind"], unique=False)
+    op.create_index(op.f("ix_addresses_contacts_source_revision"), "addresses_contacts", ["source_revision"], unique=False)
+
+
+def downgrade() -> None:
+    op.drop_index(op.f("ix_addresses_contacts_source_revision"), table_name="addresses_contacts")
+    op.drop_index(op.f("ix_addresses_contacts_source_payload_kind"), table_name="addresses_contacts")
+    op.drop_column("addresses_contacts", "source_revision")
+    op.drop_column("addresses_contacts", "source_payload_raw")
+    op.drop_column("addresses_contacts", "source_payload_kind")

src/govoplan_addresses/backend/migrations/versions/d0e1f2a4b5c_addresses_address_lists.py

@@ -0,0 +1,115 @@
+"""addresses address lists
+
+Revision ID: d0e1f2a4b5c
+Revises: c9d0e1f2a4b
+Create Date: 2026-07-13 00:00:00.000000
+"""
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "d0e1f2a4b5c"
+down_revision = "c9d0e1f2a4b"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "addresses_address_lists",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("tenant_id", sa.String(length=36), nullable=True),
+        sa.Column("address_book_id", sa.String(length=36), nullable=False),
+        sa.Column("name", sa.String(length=255), nullable=False),
+        sa.Column("description", sa.Text(), nullable=True),
+        sa.Column("source_kind", sa.String(length=30), nullable=False),
+        sa.Column("source_ref", sa.String(length=1000), nullable=True),
+        sa.Column("read_only", sa.Boolean(), nullable=False),
+        sa.Column("created_by_account_id", sa.String(length=36), nullable=True),
+        sa.Column("updated_by_account_id", sa.String(length=36), nullable=True),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("metadata", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["address_book_id"],
+            ["addresses_address_books.id"],
+            name=op.f("fk_addresses_address_lists_address_book_id_addresses_address_books"),
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_address_lists")),
+    )
+    op.create_index(op.f("ix_addresses_address_lists_address_book_id"), "addresses_address_lists", ["address_book_id"], unique=False)
+    op.create_index("ix_addresses_address_lists_book_name", "addresses_address_lists", ["address_book_id", "name"], unique=False)
+    op.create_index(op.f("ix_addresses_address_lists_created_by_account_id"), "addresses_address_lists", ["created_by_account_id"], unique=False)
+    op.create_index(op.f("ix_addresses_address_lists_deleted_at"), "addresses_address_lists", ["deleted_at"], unique=False)
+    op.create_index(op.f("ix_addresses_address_lists_source_kind"), "addresses_address_lists", ["source_kind"], unique=False)
+    op.create_index(op.f("ix_addresses_address_lists_tenant_id"), "addresses_address_lists", ["tenant_id"], unique=False)
+    op.create_index(op.f("ix_addresses_address_lists_updated_by_account_id"), "addresses_address_lists", ["updated_by_account_id"], unique=False)
+    op.create_index(
+        "uq_addresses_address_lists_active_name",
+        "addresses_address_lists",
+        ["address_book_id", "name"],
+        unique=True,
+        sqlite_where=sa.text("deleted_at IS NULL"),
+        postgresql_where=sa.text("deleted_at IS NULL"),
+    )
+
+    op.create_table(
+        "addresses_address_list_entries",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("address_list_id", sa.String(length=36), nullable=False),
+        sa.Column("contact_id", sa.String(length=36), nullable=False),
+        sa.Column("contact_email_id", sa.String(length=36), nullable=True),
+        sa.Column("contact_postal_address_id", sa.String(length=36), nullable=True),
+        sa.Column("target_kind", sa.String(length=30), nullable=False),
+        sa.Column("label", sa.String(length=255), nullable=True),
+        sa.Column("order_index", sa.Integer(), nullable=False),
+        sa.Column("metadata", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["address_list_id"],
+            ["addresses_address_lists.id"],
+            name=op.f("fk_addresses_address_list_entries_address_list_id_addresses_address_lists"),
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["contact_email_id"],
+            ["addresses_contact_emails.id"],
+            name=op.f("fk_addresses_address_list_entries_contact_email_id_addresses_contact_emails"),
+            ondelete="SET NULL",
+        ),
+        sa.ForeignKeyConstraint(
+            ["contact_id"],
+            ["addresses_contacts.id"],
+            name=op.f("fk_addresses_address_list_entries_contact_id_addresses_contacts"),
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["contact_postal_address_id"],
+            ["addresses_contact_postal_addresses.id"],
+            name=op.f("fk_addresses_address_list_entries_contact_postal_address_id_addresses_contact_postal_addresses"),
+            ondelete="SET NULL",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_address_list_entries")),
+    )
+    op.create_index(op.f("ix_addresses_address_list_entries_address_list_id"), "addresses_address_list_entries", ["address_list_id"], unique=False)
+    op.create_index("ix_addresses_address_list_entries_contact", "addresses_address_list_entries", ["contact_id"], unique=False)
+    op.create_index(op.f("ix_addresses_address_list_entries_contact_email_id"), "addresses_address_list_entries", ["contact_email_id"], unique=False)
+    op.create_index(op.f("ix_addresses_address_list_entries_contact_id"), "addresses_address_list_entries", ["contact_id"], unique=False)
+    op.create_index(
+        op.f("ix_addresses_address_list_entries_contact_postal_address_id"),
+        "addresses_address_list_entries",
+        ["contact_postal_address_id"],
+        unique=False,
+    )
+    op.create_index("ix_addresses_address_list_entries_list_order", "addresses_address_list_entries", ["address_list_id", "order_index"], unique=False)
+    op.create_index(op.f("ix_addresses_address_list_entries_target_kind"), "addresses_address_list_entries", ["target_kind"], unique=False)
+
+
+def downgrade() -> None:
+    op.drop_table("addresses_address_list_entries")
+    op.drop_table("addresses_address_lists")

src/govoplan_addresses/backend/migrations/versions/e1f2a4b5c6d_addresses_sync_infrastructure.py

@@ -0,0 +1,193 @@
+"""addresses sync infrastructure
+
+Revision ID: e1f2a4b5c6d
+Revises: d0e1f2a4b5c
+Create Date: 2026-07-14 00:00:00.000000
+"""
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "e1f2a4b5c6d"
+down_revision = "d0e1f2a4b5c"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "addresses_sync_sources",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("tenant_id", sa.String(length=36), nullable=True),
+        sa.Column("address_book_id", sa.String(length=36), nullable=False),
+        sa.Column("connector_type", sa.String(length=60), nullable=False),
+        sa.Column("display_name", sa.String(length=255), nullable=False),
+        sa.Column("external_account_ref", sa.String(length=1000), nullable=True),
+        sa.Column("external_address_book_ref", sa.String(length=1000), nullable=True),
+        sa.Column("sync_direction", sa.String(length=30), nullable=False),
+        sa.Column("read_only", sa.Boolean(), nullable=False),
+        sa.Column("enabled", sa.Boolean(), nullable=False),
+        sa.Column("status", sa.String(length=30), nullable=False),
+        sa.Column("sync_token", sa.Text(), nullable=True),
+        sa.Column("etag", sa.String(length=1000), nullable=True),
+        sa.Column("remote_revision", sa.String(length=1000), nullable=True),
+        sa.Column("last_attempted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("last_success_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("last_error", sa.Text(), nullable=True),
+        sa.Column("last_diagnostic", sa.JSON(), nullable=True),
+        sa.Column("created_by_account_id", sa.String(length=36), nullable=True),
+        sa.Column("updated_by_account_id", sa.String(length=36), nullable=True),
+        sa.Column("metadata", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["address_book_id"],
+            ["addresses_address_books.id"],
+            name=op.f("fk_addresses_sync_sources_address_book_id_addresses_address_books"),
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_sync_sources")),
+    )
+    op.create_index(op.f("ix_addresses_sync_sources_address_book_id"), "addresses_sync_sources", ["address_book_id"], unique=False)
+    op.create_index("ix_addresses_sync_sources_book_status", "addresses_sync_sources", ["address_book_id", "status"], unique=False)
+    op.create_index("ix_addresses_sync_sources_connector", "addresses_sync_sources", ["tenant_id", "connector_type"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_sources_connector_type"), "addresses_sync_sources", ["connector_type"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_sources_created_by_account_id"), "addresses_sync_sources", ["created_by_account_id"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_sources_enabled"), "addresses_sync_sources", ["enabled"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_sources_last_attempted_at"), "addresses_sync_sources", ["last_attempted_at"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_sources_last_success_at"), "addresses_sync_sources", ["last_success_at"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_sources_status"), "addresses_sync_sources", ["status"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_sources_sync_direction"), "addresses_sync_sources", ["sync_direction"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_sources_tenant_id"), "addresses_sync_sources", ["tenant_id"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_sources_updated_by_account_id"), "addresses_sync_sources", ["updated_by_account_id"], unique=False)
+
+    op.create_table(
+        "addresses_sync_tombstones",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("tenant_id", sa.String(length=36), nullable=True),
+        sa.Column("sync_source_id", sa.String(length=36), nullable=False),
+        sa.Column("address_book_id", sa.String(length=36), nullable=False),
+        sa.Column("contact_id", sa.String(length=36), nullable=True),
+        sa.Column("remote_uid", sa.String(length=1000), nullable=True),
+        sa.Column("resource_href", sa.String(length=1000), nullable=True),
+        sa.Column("local_deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("remote_deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("synced_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("metadata", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["address_book_id"],
+            ["addresses_address_books.id"],
+            name=op.f("fk_addresses_sync_tombstones_address_book_id_addresses_address_books"),
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["contact_id"],
+            ["addresses_contacts.id"],
+            name=op.f("fk_addresses_sync_tombstones_contact_id_addresses_contacts"),
+            ondelete="SET NULL",
+        ),
+        sa.ForeignKeyConstraint(
+            ["sync_source_id"],
+            ["addresses_sync_sources.id"],
+            name=op.f("fk_addresses_sync_tombstones_sync_source_id_addresses_sync_sources"),
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_sync_tombstones")),
+    )
+    op.create_index(op.f("ix_addresses_sync_tombstones_address_book_id"), "addresses_sync_tombstones", ["address_book_id"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_tombstones_contact_id"), "addresses_sync_tombstones", ["contact_id"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_tombstones_local_deleted_at"), "addresses_sync_tombstones", ["local_deleted_at"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_tombstones_remote_deleted_at"), "addresses_sync_tombstones", ["remote_deleted_at"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_tombstones_synced_at"), "addresses_sync_tombstones", ["synced_at"], unique=False)
+    op.create_index("ix_addresses_sync_tombstones_source_href", "addresses_sync_tombstones", ["sync_source_id", "resource_href"], unique=False)
+    op.create_index("ix_addresses_sync_tombstones_source_remote", "addresses_sync_tombstones", ["sync_source_id", "remote_uid"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_tombstones_sync_source_id"), "addresses_sync_tombstones", ["sync_source_id"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_tombstones_tenant_id"), "addresses_sync_tombstones", ["tenant_id"], unique=False)
+
+    op.create_table(
+        "addresses_sync_conflicts",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("tenant_id", sa.String(length=36), nullable=True),
+        sa.Column("sync_source_id", sa.String(length=36), nullable=False),
+        sa.Column("address_book_id", sa.String(length=36), nullable=False),
+        sa.Column("contact_id", sa.String(length=36), nullable=True),
+        sa.Column("remote_uid", sa.String(length=1000), nullable=True),
+        sa.Column("resource_href", sa.String(length=1000), nullable=True),
+        sa.Column("field_path", sa.String(length=500), nullable=False),
+        sa.Column("local_value", sa.JSON(), nullable=True),
+        sa.Column("remote_value", sa.JSON(), nullable=True),
+        sa.Column("local_updated_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("remote_updated_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("status", sa.String(length=30), nullable=False),
+        sa.Column("resolution", sa.String(length=60), nullable=True),
+        sa.Column("resolved_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("resolved_by_account_id", sa.String(length=36), nullable=True),
+        sa.Column("metadata", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["address_book_id"],
+            ["addresses_address_books.id"],
+            name=op.f("fk_addresses_sync_conflicts_address_book_id_addresses_address_books"),
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["contact_id"],
+            ["addresses_contacts.id"],
+            name=op.f("fk_addresses_sync_conflicts_contact_id_addresses_contacts"),
+            ondelete="SET NULL",
+        ),
+        sa.ForeignKeyConstraint(
+            ["sync_source_id"],
+            ["addresses_sync_sources.id"],
+            name=op.f("fk_addresses_sync_conflicts_sync_source_id_addresses_sync_sources"),
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_sync_conflicts")),
+    )
+    op.create_index(op.f("ix_addresses_sync_conflicts_address_book_id"), "addresses_sync_conflicts", ["address_book_id"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_conflicts_contact_id"), "addresses_sync_conflicts", ["contact_id"], unique=False)
+    op.create_index("ix_addresses_sync_conflicts_contact_status", "addresses_sync_conflicts", ["contact_id", "status"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_conflicts_resolved_at"), "addresses_sync_conflicts", ["resolved_at"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_conflicts_resolved_by_account_id"), "addresses_sync_conflicts", ["resolved_by_account_id"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_conflicts_status"), "addresses_sync_conflicts", ["status"], unique=False)
+    op.create_index("ix_addresses_sync_conflicts_source_status", "addresses_sync_conflicts", ["sync_source_id", "status"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_conflicts_sync_source_id"), "addresses_sync_conflicts", ["sync_source_id"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_conflicts_tenant_id"), "addresses_sync_conflicts", ["tenant_id"], unique=False)
+
+    op.create_table(
+        "addresses_sync_diagnostics",
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.Column("tenant_id", sa.String(length=36), nullable=True),
+        sa.Column("sync_source_id", sa.String(length=36), nullable=False),
+        sa.Column("severity", sa.String(length=30), nullable=False),
+        sa.Column("code", sa.String(length=120), nullable=False),
+        sa.Column("message", sa.Text(), nullable=False),
+        sa.Column("details", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["sync_source_id"],
+            ["addresses_sync_sources.id"],
+            name=op.f("fk_addresses_sync_diagnostics_sync_source_id_addresses_sync_sources"),
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_addresses_sync_diagnostics")),
+    )
+    op.create_index(op.f("ix_addresses_sync_diagnostics_code"), "addresses_sync_diagnostics", ["code"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_diagnostics_severity"), "addresses_sync_diagnostics", ["severity"], unique=False)
+    op.create_index("ix_addresses_sync_diagnostics_source_created", "addresses_sync_diagnostics", ["sync_source_id", "created_at"], unique=False)
+    op.create_index("ix_addresses_sync_diagnostics_source_severity", "addresses_sync_diagnostics", ["sync_source_id", "severity"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_diagnostics_sync_source_id"), "addresses_sync_diagnostics", ["sync_source_id"], unique=False)
+    op.create_index(op.f("ix_addresses_sync_diagnostics_tenant_id"), "addresses_sync_diagnostics", ["tenant_id"], unique=False)
+
+
+def downgrade() -> None:
+    op.drop_table("addresses_sync_diagnostics")
+    op.drop_table("addresses_sync_conflicts")
+    op.drop_table("addresses_sync_tombstones")
+    op.drop_table("addresses_sync_sources")

src/govoplan_addresses/backend/schemas.py

@@ -0,0 +1,510 @@
+from __future__ import annotations
+
+from datetime import datetime
+from typing import Any, Literal
+
+from pydantic import BaseModel, ConfigDict, Field, SecretStr
+
+
+AddressBookScope = Literal["user", "group", "tenant", "system"]
+AddressSyncDirection = Literal["read_only", "import", "export", "two_way"]
+AddressSyncStatus = Literal["idle", "running", "succeeded", "failed", "conflict", "disabled"]
+AddressSyncDiagnosticSeverity = Literal["debug", "info", "warning", "error"]
+AddressSyncConflictStatus = Literal["open", "resolved", "ignored"]
+AddressSyncConflictResolution = Literal["keep_local", "use_remote", "merge", "manual", "ignored"]
+AddressCardDavAuthType = Literal["none", "basic", "bearer"]
+AddressSyncPlanAction = Literal["create", "update", "delete", "remote_create", "remote_update", "remote_delete", "conflict", "unchanged", "error"]
+
+
+class ContactEmailPayload(BaseModel):
+    label: str | None = Field(default=None, max_length=80)
+    email: str = Field(max_length=320)
+    is_primary: bool = False
+
+
+class ContactPhonePayload(BaseModel):
+    label: str | None = Field(default=None, max_length=80)
+    phone: str = Field(max_length=100)
+    is_primary: bool = False
+
+
+class ContactPostalAddressPayload(BaseModel):
+    label: str | None = Field(default=None, max_length=80)
+    street: str | None = Field(default=None, max_length=500)
+    postal_code: str | None = Field(default=None, max_length=40)
+    locality: str | None = Field(default=None, max_length=255)
+    region: str | None = Field(default=None, max_length=255)
+    country: str | None = Field(default=None, max_length=255)
+    is_primary: bool = False
+
+
+class AddressBookCreateRequest(BaseModel):
+    scope_type: AddressBookScope = "user"
+    group_id: str | None = Field(default=None, max_length=36)
+    name: str = Field(min_length=1, max_length=255)
+    description: str | None = None
+
+
+class AddressBookUpdateRequest(BaseModel):
+    name: str | None = Field(default=None, min_length=1, max_length=255)
+    description: str | None = None
+
+
+class AddressBookResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    tenant_id: str | None = None
+    scope_type: AddressBookScope
+    scope_id: str | None = None
+    name: str
+    description: str | None = None
+    source_kind: str
+    source_ref: str | None = None
+    read_only: bool
+    sync_status: str | None = None
+    sync_error: str | None = None
+    contact_count: int = 0
+    deleted_at: datetime | None = None
+    created_at: datetime
+    updated_at: datetime
+
+
+class AddressBookListResponse(BaseModel):
+    address_books: list[AddressBookResponse]
+
+
+class AddressListCreateRequest(BaseModel):
+    name: str = Field(min_length=1, max_length=255)
+    description: str | None = None
+
+
+class AddressListUpdateRequest(BaseModel):
+    name: str | None = Field(default=None, min_length=1, max_length=255)
+    description: str | None = None
+
+
+class AddressListEntryCreateRequest(BaseModel):
+    contact_id: str = Field(max_length=36)
+    contact_email_id: str | None = Field(default=None, max_length=36)
+    contact_postal_address_id: str | None = Field(default=None, max_length=36)
+    label: str | None = Field(default=None, max_length=255)
+
+
+class AddressListResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    tenant_id: str | None = None
+    address_book_id: str
+    name: str
+    description: str | None = None
+    source_kind: str
+    source_ref: str | None = None
+    read_only: bool
+    entry_count: int = 0
+    deleted_at: datetime | None = None
+    created_at: datetime
+    updated_at: datetime
+
+
+class AddressListListResponse(BaseModel):
+    address_lists: list[AddressListResponse]
+
+
+class AddressListEntryResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    address_list_id: str
+    contact_id: str
+    contact_email_id: str | None = None
+    contact_postal_address_id: str | None = None
+    target_kind: str
+    label: str | None = None
+    order_index: int
+    contact_display_name: str
+    email: str | None = None
+    postal_address: str | None = None
+    created_at: datetime
+    updated_at: datetime
+
+
+class AddressListEntryListResponse(BaseModel):
+    entries: list[AddressListEntryResponse]
+
+
+class ContactCreateRequest(BaseModel):
+    display_name: str | None = Field(default=None, max_length=255)
+    given_name: str | None = Field(default=None, max_length=255)
+    family_name: str | None = Field(default=None, max_length=255)
+    organization: str | None = Field(default=None, max_length=255)
+    role_title: str | None = Field(default=None, max_length=255)
+    note: str | None = None
+    tags: list[str] = Field(default_factory=list)
+    emails: list[ContactEmailPayload] = Field(default_factory=list)
+    phones: list[ContactPhonePayload] = Field(default_factory=list)
+    postal_addresses: list[ContactPostalAddressPayload] = Field(default_factory=list)
+    provenance: dict[str, Any] = Field(default_factory=dict)
+
+
+class ContactUpdateRequest(BaseModel):
+    display_name: str | None = Field(default=None, max_length=255)
+    given_name: str | None = Field(default=None, max_length=255)
+    family_name: str | None = Field(default=None, max_length=255)
+    organization: str | None = Field(default=None, max_length=255)
+    role_title: str | None = Field(default=None, max_length=255)
+    note: str | None = None
+    tags: list[str] | None = None
+    emails: list[ContactEmailPayload] | None = None
+    phones: list[ContactPhonePayload] | None = None
+    postal_addresses: list[ContactPostalAddressPayload] | None = None
+    provenance: dict[str, Any] | None = None
+
+
+class ContactEmailResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    label: str | None = None
+    email: str
+    is_primary: bool
+
+
+class ContactPhoneResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    label: str | None = None
+    phone: str
+    is_primary: bool
+
+
+class ContactPostalAddressResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    label: str | None = None
+    street: str | None = None
+    postal_code: str | None = None
+    locality: str | None = None
+    region: str | None = None
+    country: str | None = None
+    is_primary: bool
+
+
+class ContactResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    tenant_id: str | None = None
+    address_book_id: str
+    display_name: str
+    given_name: str | None = None
+    family_name: str | None = None
+    organization: str | None = None
+    role_title: str | None = None
+    note: str | None = None
+    tags: list[str]
+    source_kind: str
+    source_ref: str | None = None
+    source_payload_kind: str | None = None
+    source_revision: str | None = None
+    provenance: dict[str, Any]
+    emails: list[ContactEmailResponse]
+    phones: list[ContactPhoneResponse]
+    postal_addresses: list[ContactPostalAddressResponse]
+    deleted_at: datetime | None = None
+    created_at: datetime
+    updated_at: datetime
+
+
+class ContactListResponse(BaseModel):
+    contacts: list[ContactResponse]
+
+
+class AddressLookupResponse(BaseModel):
+    contacts: list[ContactResponse]
+
+
+class AddressBookWriteDecisionResponse(BaseModel):
+    address_book_id: str
+    address_book_label: str | None = None
+    operation: str
+    allowed: bool
+    reason: str
+    message: str
+    scope_type: AddressBookScope | None = None
+    scope_id: str | None = None
+    tenant_id: str | None = None
+    source_kind: str | None = None
+    read_only: bool = False
+    required_scopes: list[str] = Field(default_factory=list)
+    provenance: dict[str, Any] = Field(default_factory=dict)
+
+
+class AddressBookWriteTargetsResponse(BaseModel):
+    targets: list[AddressBookWriteDecisionResponse] = Field(default_factory=list)
+
+
+class AddressSyncSourceCreateRequest(BaseModel):
+    connector_type: str = Field(min_length=1, max_length=60)
+    display_name: str = Field(min_length=1, max_length=255)
+    external_account_ref: str | None = Field(default=None, max_length=1000)
+    external_address_book_ref: str | None = Field(default=None, max_length=1000)
+    sync_direction: AddressSyncDirection = "read_only"
+    read_only: bool | None = None
+    enabled: bool = True
+    sync_token: str | None = None
+    etag: str | None = Field(default=None, max_length=1000)
+    remote_revision: str | None = Field(default=None, max_length=1000)
+    metadata: dict[str, Any] = Field(default_factory=dict)
+
+
+class AddressSyncSourceUpdateRequest(BaseModel):
+    display_name: str | None = Field(default=None, min_length=1, max_length=255)
+    external_account_ref: str | None = Field(default=None, max_length=1000)
+    external_address_book_ref: str | None = Field(default=None, max_length=1000)
+    sync_direction: AddressSyncDirection | None = None
+    read_only: bool | None = None
+    enabled: bool | None = None
+    sync_token: str | None = None
+    etag: str | None = Field(default=None, max_length=1000)
+    remote_revision: str | None = Field(default=None, max_length=1000)
+    metadata: dict[str, Any] | None = None
+
+
+class AddressSyncAttemptFinishRequest(BaseModel):
+    status: Literal["succeeded", "failed", "conflict"]
+    sync_token: str | None = None
+    etag: str | None = Field(default=None, max_length=1000)
+    remote_revision: str | None = Field(default=None, max_length=1000)
+    error: str | None = None
+    diagnostic: dict[str, Any] | None = None
+
+
+class AddressSyncSourceResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    tenant_id: str | None = None
+    address_book_id: str
+    connector_type: str
+    display_name: str
+    external_account_ref: str | None = None
+    external_address_book_ref: str | None = None
+    sync_direction: str
+    read_only: bool
+    enabled: bool
+    status: str
+    sync_token: str | None = None
+    etag: str | None = None
+    remote_revision: str | None = None
+    last_attempted_at: datetime | None = None
+    last_success_at: datetime | None = None
+    last_error: str | None = None
+    last_diagnostic: dict[str, Any] | None = None
+    metadata: dict[str, Any] = Field(default_factory=dict)
+    created_at: datetime
+    updated_at: datetime
+
+
+class AddressSyncSourceListResponse(BaseModel):
+    sync_sources: list[AddressSyncSourceResponse]
+
+
+class AddressSyncDiagnosticCreateRequest(BaseModel):
+    severity: AddressSyncDiagnosticSeverity = "info"
+    code: str = Field(min_length=1, max_length=120)
+    message: str = Field(min_length=1)
+    details: dict[str, Any] = Field(default_factory=dict)
+
+
+class AddressSyncDiagnosticResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    tenant_id: str | None = None
+    sync_source_id: str
+    severity: str
+    code: str
+    message: str
+    details: dict[str, Any] = Field(default_factory=dict)
+    created_at: datetime
+    updated_at: datetime
+
+
+class AddressSyncDiagnosticListResponse(BaseModel):
+    diagnostics: list[AddressSyncDiagnosticResponse]
+
+
+class AddressSyncTombstoneCreateRequest(BaseModel):
+    contact_id: str | None = Field(default=None, max_length=36)
+    remote_uid: str | None = Field(default=None, max_length=1000)
+    resource_href: str | None = Field(default=None, max_length=1000)
+    local_deleted_at: datetime | None = None
+    remote_deleted_at: datetime | None = None
+    synced_at: datetime | None = None
+    metadata: dict[str, Any] = Field(default_factory=dict)
+
+
+class AddressSyncTombstoneResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    tenant_id: str | None = None
+    sync_source_id: str
+    address_book_id: str
+    contact_id: str | None = None
+    remote_uid: str | None = None
+    resource_href: str | None = None
+    local_deleted_at: datetime | None = None
+    remote_deleted_at: datetime | None = None
+    synced_at: datetime | None = None
+    metadata: dict[str, Any] = Field(default_factory=dict)
+    created_at: datetime
+    updated_at: datetime
+
+
+class AddressSyncTombstoneListResponse(BaseModel):
+    tombstones: list[AddressSyncTombstoneResponse]
+
+
+class AddressSyncConflictCreateRequest(BaseModel):
+    contact_id: str | None = Field(default=None, max_length=36)
+    remote_uid: str | None = Field(default=None, max_length=1000)
+    resource_href: str | None = Field(default=None, max_length=1000)
+    field_path: str = Field(min_length=1, max_length=500)
+    local_value: dict[str, Any] | None = None
+    remote_value: dict[str, Any] | None = None
+    local_updated_at: datetime | None = None
+    remote_updated_at: datetime | None = None
+    metadata: dict[str, Any] = Field(default_factory=dict)
+
+
+class AddressSyncConflictResolveRequest(BaseModel):
+    resolution: AddressSyncConflictResolution
+    status: Literal["resolved", "ignored"] = "resolved"
+    merged_payload: ContactCreateRequest | None = None
+
+
+class AddressSyncConflictResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    tenant_id: str | None = None
+    sync_source_id: str
+    address_book_id: str
+    contact_id: str | None = None
+    remote_uid: str | None = None
+    resource_href: str | None = None
+    field_path: str
+    local_value: dict[str, Any] | None = None
+    remote_value: dict[str, Any] | None = None
+    local_updated_at: datetime | None = None
+    remote_updated_at: datetime | None = None
+    status: str
+    resolution: str | None = None
+    resolved_at: datetime | None = None
+    resolved_by_account_id: str | None = None
+    metadata: dict[str, Any] = Field(default_factory=dict)
+    created_at: datetime
+    updated_at: datetime
+
+
+class AddressSyncConflictListResponse(BaseModel):
+    conflicts: list[AddressSyncConflictResponse]
+
+
+class AddressCardDavDiscoveryRequest(BaseModel):
+    url: str = Field(min_length=1, max_length=2000)
+    auth_type: AddressCardDavAuthType = "none"
+    username: str | None = Field(default=None, max_length=320)
+    password: SecretStr | None = None
+    bearer_token: SecretStr | None = None
+    credential_ref: str | None = Field(default=None, max_length=1000)
+    source_id: str | None = Field(default=None, max_length=36)
+
+
+class AddressCardDavAddressBookResponse(BaseModel):
+    collection_url: str
+    href: str
+    display_name: str | None = None
+    description: str | None = None
+    ctag: str | None = None
+    sync_token: str | None = None
+
+
+class AddressCardDavDiscoveryResponse(BaseModel):
+    address_books: list[AddressCardDavAddressBookResponse]
+
+
+class AddressCardDavSourceCreateRequest(BaseModel):
+    collection_url: str = Field(min_length=1, max_length=2000)
+    display_name: str | None = Field(default=None, max_length=255)
+    auth_type: AddressCardDavAuthType = "none"
+    username: str | None = Field(default=None, max_length=320)
+    password: SecretStr | None = None
+    bearer_token: SecretStr | None = None
+    credential_ref: str | None = Field(default=None, max_length=1000)
+    sync_direction: AddressSyncDirection = "read_only"
+    read_only: bool | None = None
+    sync_token: str | None = None
+    etag: str | None = Field(default=None, max_length=1000)
+    remote_revision: str | None = Field(default=None, max_length=1000)
+
+
+class AddressSyncRunRequest(BaseModel):
+    force_full: bool = False
+    password: SecretStr | None = None
+    bearer_token: SecretStr | None = None
+
+
+class AddressSyncPlanStats(BaseModel):
+    created: int = 0
+    updated: int = 0
+    deleted: int = 0
+    conflicts: int = 0
+    unchanged: int = 0
+    errors: int = 0
+    fetched: int = 0
+    full_sync: bool = False
+    used_sync_token: bool = False
+    sync_token: str | None = None
+    etag: str | None = None
+    remote_revision: str | None = None
+
+
+class AddressSyncPlanItemResponse(BaseModel):
+    action: AddressSyncPlanAction
+    href: str | None = None
+    remote_uid: str | None = None
+    contact_id: str | None = None
+    display_name: str | None = None
+    etag: str | None = None
+    message: str | None = None
+
+
+class AddressSyncPlanResponse(BaseModel):
+    sync_source: AddressSyncSourceResponse
+    stats: AddressSyncPlanStats
+    items: list[AddressSyncPlanItemResponse]
+
+
+class VCardImportRequest(BaseModel):
+    content: str = Field(min_length=1)
+
+
+class VCardImportIssue(BaseModel):
+    index: int
+    message: str
+    severity: Literal["warning", "error"] = "error"
+    field: str | None = None
+    line: int | None = None
+
+
+class VCardImportResponse(BaseModel):
+    imported: int
+    skipped: int
+    contacts: list[ContactResponse]
+    issues: list[VCardImportIssue] = Field(default_factory=list)

src/govoplan_addresses/backend/vcard.py

@@ -0,0 +1,500 @@
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from typing import Literal
+
+from govoplan_addresses.backend.db.models import Contact
+from govoplan_addresses.backend.schemas import (
+    ContactCreateRequest,
+    ContactEmailPayload,
+    ContactPhonePayload,
+    ContactPostalAddressPayload,
+)
+
+
+class VCardError(ValueError):
+    pass
+
+
+@dataclass(frozen=True, slots=True)
+class ParsedVCard:
+    payload: ContactCreateRequest
+    raw: str
+    source_ref: str | None = None
+    source_revision: str | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class ParsedVCardIssue:
+    index: int
+    message: str
+    severity: Literal["warning", "error"] = "error"
+    field: str | None = None
+    line: int | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class VCardParseResult:
+    cards: list[ParsedVCard]
+    issues: list[ParsedVCardIssue]
+    skipped: int
+
+
+@dataclass(slots=True)
+class _VCardDraft:
+    fn: str | None = None
+    given_name: str | None = None
+    family_name: str | None = None
+    organization: str | None = None
+    role_title: str | None = None
+    note: str | None = None
+    version: str | None = None
+    uid: str | None = None
+    revision: str | None = None
+    tags: list[str] = field(default_factory=list)
+    emails: list[ContactEmailPayload] = field(default_factory=list)
+    phones: list[ContactPhonePayload] = field(default_factory=list)
+    addresses: list[ContactPostalAddressPayload] = field(default_factory=list)
+    urls: list[str] = field(default_factory=list)
+
+
+def _normalize_lines(content: str) -> list[str]:
+    raw_lines = content.replace("\r\n", "\n").replace("\r", "\n").split("\n")
+    lines: list[str] = []
+    for line in raw_lines:
+        if line.startswith((" ", "\t")) and lines:
+            lines[-1] += line[1:]
+        elif line:
+            lines.append(line)
+    return lines
+
+
+def _split_unescaped(value: str, separator: str) -> list[str]:
+    parts: list[str] = []
+    current: list[str] = []
+    escaped = False
+    for char in value:
+        if escaped:
+            current.append(char)
+            escaped = False
+        elif char == "\\":
+            current.append(char)
+            escaped = True
+        elif char == separator:
+            parts.append("".join(current))
+            current = []
+        else:
+            current.append(char)
+    parts.append("".join(current))
+    return parts
+
+
+def _unescape_text(value: str) -> str:
+    return (
+        value.replace("\\n", "\n")
+        .replace("\\N", "\n")
+        .replace("\\,", ",")
+        .replace("\\;", ";")
+        .replace("\\\\", "\\")
+        .strip()
+    )
+
+
+def _escape_text(value: str | None) -> str:
+    if value is None:
+        return ""
+    return (
+        value.replace("\\", "\\\\")
+        .replace("\r\n", "\n")
+        .replace("\r", "\n")
+        .replace("\n", "\\n")
+        .replace(";", "\\;")
+        .replace(",", "\\,")
+    )
+
+
+def _parse_head(head: str) -> tuple[str, dict[str, list[str]]]:
+    parts = head.split(";")
+    name = parts[0].split(".")[-1].upper()
+    params: dict[str, list[str]] = {}
+    for part in parts[1:]:
+        if not part:
+            continue
+        if "=" in part:
+            key, raw_value = part.split("=", 1)
+            values = [item.strip().strip('"') for item in raw_value.split(",") if item.strip()]
+        else:
+            key = "TYPE"
+            values = [part.strip().strip('"')]
+        params.setdefault(key.upper(), []).extend(values)
+    return name, params
+
+
+def _label_from_params(params: dict[str, list[str]]) -> str | None:
+    ignored = {"INTERNET", "VOICE", "PREF"}
+    for value in params.get("TYPE", []):
+        normalized = value.strip().lower()
+        if normalized and normalized.upper() not in ignored:
+            return normalized
+    return None
+
+
+def _line_value(line: str, *, card_index: int) -> tuple[str, dict[str, list[str]], str]:
+    if ":" not in line:
+        raise VCardError(f"vCard {card_index}: line is missing ':' separator.")
+    head, value = line.split(":", 1)
+    name, params = _parse_head(head)
+    return name, params, value
+
+
+def _is_pref(params: dict[str, list[str]]) -> bool:
+    values = [value.strip().upper() for value in params.get("TYPE", [])]
+    values.extend(value.strip().upper() for value in params.get("PREF", []))
+    return "PREF" in values or "1" in values
+
+
+def _card_blocks(content: str) -> list[list[str]]:
+    result = _card_blocks_with_issues(content)
+    if result.issues:
+        raise VCardError(result.issues[0].message)
+    return result.cards
+
+
+@dataclass(frozen=True, slots=True)
+class _CardBlockResult:
+    cards: list[list[str]]
+    issues: list[ParsedVCardIssue]
+
+
+def _card_blocks_with_issues(content: str) -> _CardBlockResult:
+    lines = _normalize_lines(content)
+    blocks: list[list[str]] = []
+    issues: list[ParsedVCardIssue] = []
+    current: list[str] | None = None
+    for line in lines:
+        card_index = len(blocks) + 1
+        try:
+            name, _params, value = _line_value(line, card_index=card_index)
+        except VCardError as exc:
+            issues.append(ParsedVCardIssue(index=card_index, message=str(exc), field="line"))
+            continue
+        if name == "BEGIN" and line.split(":", 1)[1].upper() == "VCARD":
+            if current is not None:
+                issues.append(ParsedVCardIssue(index=card_index, message="Nested vCard BEGIN is not supported."))
+                current = None
+                continue
+            current = [line]
+        elif name == "END" and value.upper() == "VCARD":
+            if current is None:
+                issues.append(ParsedVCardIssue(index=card_index, message="vCard END appears before BEGIN."))
+                continue
+            current.append(line)
+            blocks.append(current)
+            current = None
+        elif current is not None:
+            current.append(line)
+    if current is not None:
+        issues.append(ParsedVCardIssue(index=len(blocks) + 1, message="vCard BEGIN has no matching END."))
+    if not blocks:
+        issues.append(ParsedVCardIssue(index=0, message="No vCard entries found."))
+    return _CardBlockResult(cards=blocks, issues=issues)
+
+
+def _parse_card(index: int, block: list[str]) -> tuple[ParsedVCard | None, list[ParsedVCardIssue]]:
+    draft = _VCardDraft()
+    issues: list[ParsedVCardIssue] = []
+
+    for line in block:
+        parsed = _parse_card_line(index, line, issues)
+        if parsed is not None:
+            name, params, value = parsed
+            _apply_card_property(index, draft, name, params, value, issues)
+
+    if not _draft_has_identity(draft):
+        issues.append(ParsedVCardIssue(index=index, message=f"vCard {index}: contact has no name or email."))
+        return None, issues
+
+    raw = "\n".join(block)
+    payload = _draft_contact_payload(draft)
+    return ParsedVCard(payload=payload, raw=raw, source_ref=draft.uid, source_revision=draft.revision), issues
+
+
+def _parse_card_line(
+    index: int,
+    line: str,
+    issues: list[ParsedVCardIssue],
+) -> tuple[str, dict[str, list[str]], str] | None:
+    try:
+        return _line_value(line, card_index=index)
+    except VCardError as exc:
+        issues.append(ParsedVCardIssue(index=index, message=str(exc), field="line"))
+        return None
+
+
+def _apply_card_property(
+    index: int,
+    draft: _VCardDraft,
+    name: str,
+    params: dict[str, list[str]],
+    value: str,
+    issues: list[ParsedVCardIssue],
+) -> None:
+    if name in {"BEGIN", "END"}:
+        return
+    if _apply_card_metadata(index, draft, name, value, issues):
+        return
+    if _apply_card_identity(draft, name, value):
+        return
+    _apply_card_contact_detail(index, draft, name, params, value, issues)
+
+
+def _apply_card_metadata(
+    index: int,
+    draft: _VCardDraft,
+    name: str,
+    value: str,
+    issues: list[ParsedVCardIssue],
+) -> bool:
+    if name == "VERSION":
+        draft.version = value.strip()
+        if draft.version and draft.version not in {"3.0", "4.0"}:
+            issues.append(ParsedVCardIssue(index=index, severity="warning", field="VERSION", message=f"vCard version {draft.version} is not fully supported."))
+        return True
+    if name == "UID":
+        draft.uid = _unescape_text(value) or draft.uid
+        return True
+    if name == "REV":
+        draft.revision = _unescape_text(value) or draft.revision
+        return True
+    return False
+
+
+def _apply_card_identity(draft: _VCardDraft, name: str, value: str) -> bool:
+    if name == "FN":
+        draft.fn = _unescape_text(value)
+        return True
+    if name == "N":
+        parts = [_unescape_text(item) for item in _split_unescaped(value, ";")]
+        draft.family_name = parts[0] if len(parts) > 0 and parts[0] else draft.family_name
+        draft.given_name = parts[1] if len(parts) > 1 and parts[1] else draft.given_name
+        return True
+    if name == "ORG":
+        organization_parts = _unescaped_nonempty_values(value, ";")
+        draft.organization = " / ".join(organization_parts) or draft.organization
+        return True
+    if name in {"TITLE", "ROLE"}:
+        draft.role_title = _unescape_text(value) or draft.role_title
+        return True
+    if name == "NOTE":
+        draft.note = _unescape_text(value) or draft.note
+        return True
+    if name == "CATEGORIES":
+        draft.tags.extend(_unescaped_nonempty_values(value, ","))
+        return True
+    return False
+
+
+def _apply_card_contact_detail(
+    index: int,
+    draft: _VCardDraft,
+    name: str,
+    params: dict[str, list[str]],
+    value: str,
+    issues: list[ParsedVCardIssue],
+) -> None:
+    if name == "EMAIL":
+        _append_card_email(index, draft, params, value, issues)
+    elif name == "TEL":
+        _append_card_phone(draft, params, value)
+    elif name == "ADR":
+        _append_card_address(draft, params, value)
+    elif name == "URL":
+        url = _unescape_text(value)
+        if url:
+            draft.urls.append(url)
+
+
+def _append_card_email(
+    index: int,
+    draft: _VCardDraft,
+    params: dict[str, list[str]],
+    value: str,
+    issues: list[ParsedVCardIssue],
+) -> None:
+    email = _unescape_text(value)
+    if not email:
+        return
+    if "@" not in email:
+        issues.append(ParsedVCardIssue(index=index, severity="warning", field="EMAIL", message=f"Skipped invalid email address: {email}"))
+        return
+    draft.emails.append(ContactEmailPayload(label=_label_from_params(params), email=email, is_primary=_is_pref(params) or not draft.emails))
+
+
+def _append_card_phone(draft: _VCardDraft, params: dict[str, list[str]], value: str) -> None:
+    phone = _unescape_text(value)
+    if phone:
+        draft.phones.append(ContactPhonePayload(label=_label_from_params(params), phone=phone, is_primary=_is_pref(params) or not draft.phones))
+
+
+def _append_card_address(draft: _VCardDraft, params: dict[str, list[str]], value: str) -> None:
+    parts = [_unescape_text(item) for item in _split_unescaped(value, ";")]
+    while len(parts) < 7:
+        parts.append("")
+    if not any(parts):
+        return
+    street = "\n".join(part for part in (parts[1], parts[2]) if part)
+    draft.addresses.append(
+        ContactPostalAddressPayload(
+            label=_label_from_params(params),
+            street=street or None,
+            locality=parts[3] or None,
+            region=parts[4] or None,
+            postal_code=parts[5] or None,
+            country=parts[6] or None,
+            is_primary=_is_pref(params) or not draft.addresses,
+        )
+    )
+
+
+def _unescaped_nonempty_values(value: str, separator: str) -> list[str]:
+    return [text for text in (_unescape_text(item) for item in _split_unescaped(value, separator)) if text]
+
+
+def _draft_has_identity(draft: _VCardDraft) -> bool:
+    return bool(draft.fn or draft.given_name or draft.family_name or draft.emails)
+
+
+def _draft_contact_payload(draft: _VCardDraft) -> ContactCreateRequest:
+    payload = ContactCreateRequest(
+        display_name=draft.fn,
+        given_name=draft.given_name,
+        family_name=draft.family_name,
+        organization=draft.organization,
+        role_title=draft.role_title,
+        note=draft.note,
+        tags=draft.tags,
+        emails=draft.emails,
+        phones=draft.phones,
+        postal_addresses=draft.addresses,
+        provenance={
+            "vcard": {
+                "version": draft.version,
+                "uid": draft.uid,
+                "revision": draft.revision,
+                "urls": draft.urls,
+            }
+        },
+    )
+    return payload
+
+
+def parse_vcards_with_issues(content: str) -> VCardParseResult:
+    blocks = _card_blocks_with_issues(content)
+    parsed: list[ParsedVCard] = []
+    issues = list(blocks.issues)
+    skipped = 0
+    for index, block in enumerate(blocks.cards, start=1):
+        card, card_issues = _parse_card(index, block)
+        issues.extend(card_issues)
+        if card is None:
+            skipped += 1
+        else:
+            parsed.append(card)
+    return VCardParseResult(cards=parsed, issues=issues, skipped=skipped)
+
+
+def parse_vcards(content: str) -> list[ParsedVCard]:
+    result = parse_vcards_with_issues(content)
+    errors = [issue for issue in result.issues if issue.severity == "error"]
+    if errors:
+        raise VCardError(errors[0].message)
+    return result.cards
+
+
+def contact_to_vcard(contact: Contact) -> str:
+    lines = _contact_identity_lines(contact)
+    lines.extend(_contact_email_lines(contact))
+    lines.extend(_contact_phone_lines(contact))
+    lines.extend(_contact_address_lines(contact))
+    lines.extend(_contact_note_and_tag_lines(contact))
+    lines.extend(_contact_url_lines(contact))
+    lines.append("END:VCARD")
+    return "\r\n".join(lines) + "\r\n"
+
+
+def _contact_identity_lines(contact: Contact) -> list[str]:
+    lines = [
+        "BEGIN:VCARD",
+        "VERSION:4.0",
+        f"FN:{_escape_text(contact.display_name)}",
+        f"N:{_escape_text(contact.family_name)};{_escape_text(contact.given_name)};;;",
+    ]
+    if contact.source_ref:
+        lines.append(f"UID:{_escape_text(contact.source_ref)}")
+    if contact.source_revision:
+        lines.append(f"REV:{_escape_text(contact.source_revision)}")
+    if contact.organization:
+        lines.append(f"ORG:{_escape_text(contact.organization)}")
+    if contact.role_title:
+        lines.append(f"TITLE:{_escape_text(contact.role_title)}")
+    return lines
+
+
+def _contact_email_lines(contact: Contact) -> list[str]:
+    lines: list[str] = []
+    for email in contact.emails:
+        label = f";TYPE={_escape_text(email.label)}" if email.label else ""
+        lines.append(f"EMAIL{label}:{_escape_text(email.email)}")
+    return lines
+
+
+def _contact_phone_lines(contact: Contact) -> list[str]:
+    lines: list[str] = []
+    for phone in contact.phones:
+        label = f";TYPE={_escape_text(phone.label)}" if phone.label else ""
+        lines.append(f"TEL{label}:{_escape_text(phone.phone)}")
+    return lines
+
+
+def _contact_address_lines(contact: Contact) -> list[str]:
+    lines: list[str] = []
+    for address in contact.postal_addresses:
+        label = f";TYPE={_escape_text(address.label)}" if address.label else ""
+        lines.append(
+            "ADR"
+            f"{label}:;;{_escape_text(address.street)};{_escape_text(address.locality)};"
+            f"{_escape_text(address.region)};{_escape_text(address.postal_code)};{_escape_text(address.country)}"
+        )
+    return lines
+
+
+def _contact_note_and_tag_lines(contact: Contact) -> list[str]:
+    lines: list[str] = []
+    if contact.note:
+        lines.append(f"NOTE:{_escape_text(contact.note)}")
+    if contact.tags:
+        lines.append(f"CATEGORIES:{','.join(_escape_text(tag) for tag in contact.tags)}")
+    return lines
+
+
+def _contact_url_lines(contact: Contact) -> list[str]:
+    lines: list[str] = []
+    urls = _contact_vcard_urls(contact)
+    if isinstance(urls, list):
+        for url in urls:
+            if isinstance(url, str) and url.strip():
+                lines.append(f"URL:{_escape_text(url.strip())}")
+    return lines
+
+
+def _contact_vcard_urls(contact: Contact) -> object:
+    if not isinstance(contact.provenance, dict):
+        return None
+    vcard = contact.provenance.get("vcard")
+    if not isinstance(vcard, dict):
+        return None
+    return vcard.get("urls")
+
+
+def contacts_to_vcard(contacts: list[Contact]) -> str:
+    return "".join(contact_to_vcard(contact) for contact in contacts)