Initialize identity module

src/govoplan_identity/backend/db/__init__.py

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+"""Identity database models."""

src/govoplan_identity/backend/db/models.py

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+from __future__ import annotations
+
+import uuid
+from typing import Any
+
+from sqlalchemy import Boolean, ForeignKey, Index, JSON, String, UniqueConstraint, text
+from sqlalchemy.orm import Mapped, mapped_column
+
+from govoplan_core.db.base import Base, TimestampMixin
+
+
+def new_uuid() -> str:
+    return str(uuid.uuid4())
+
+
+class CanonicalIdentity(Base, TimestampMixin):
+    __tablename__ = "identity_identities"
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    display_name: Mapped[str | None] = mapped_column(String(255))
+    external_subject: Mapped[str | None] = mapped_column(String(255), index=True)
+    source: Mapped[str] = mapped_column(String(50), default="local", nullable=False)
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
+    settings: Mapped[dict[str, Any]] = mapped_column(JSON, default=dict, nullable=False)
+
+
+class CanonicalIdentityAccountLink(Base, TimestampMixin):
+    __tablename__ = "identity_account_links"
+    __table_args__ = (
+        UniqueConstraint("identity_id", "account_id", name="uq_identity_module_account_links_identity_account"),
+        Index(
+            "uq_identity_module_account_links_primary_account",
+            "account_id",
+            unique=True,
+            sqlite_where=text("is_primary = 1"),
+            postgresql_where=text("is_primary IS TRUE"),
+        ),
+        Index(
+            "uq_identity_module_account_links_primary_identity",
+            "identity_id",
+            unique=True,
+            sqlite_where=text("is_primary = 1"),
+            postgresql_where=text("is_primary IS TRUE"),
+        ),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    identity_id: Mapped[str] = mapped_column(ForeignKey("identity_identities.id", ondelete="CASCADE"), nullable=False, index=True)
+    account_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
+    is_primary: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
+    source: Mapped[str] = mapped_column(String(50), default="local", nullable=False)
+
+
+Identity = CanonicalIdentity
+IdentityAccountLink = CanonicalIdentityAccountLink
+
+
+__all__ = ["CanonicalIdentity", "CanonicalIdentityAccountLink", "Identity", "IdentityAccountLink", "new_uuid"]