from __future__ import annotations

from datetime import datetime, timedelta, timezone
from types import SimpleNamespace
import unittest

from sqlalchemy import create_engine
from sqlalchemy.orm import Session

from govoplan_access.backend.db.models import Account, User
from govoplan_calendar.backend.db.models import CalendarCollection, CalendarEvent
from govoplan_calendar.backend.search_source import (
    CalendarSearchSource,
    PROVIDER_ID,
    RESOURCE_TYPE,
)
from govoplan_core.auth import ApiPrincipal
from govoplan_core.core.access import PrincipalRef
from govoplan_core.core.search import (
    SearchAuthorizationRequest,
    SearchBackfillRequest,
    SearchResourceReference,
)
from govoplan_core.db.base import Base


class CalendarSearchSourceTests(unittest.TestCase):
    def setUp(self) -> None:
        self.engine = create_engine("sqlite://")
        Base.metadata.create_all(
            self.engine,
            tables=(
                Account.__table__,
                User.__table__,
                CalendarCollection.__table__,
                CalendarEvent.__table__,
            ),
        )
        self.session = Session(self.engine)
        start = datetime(2026, 8, 5, 9, tzinfo=timezone.utc)
        self.session.add_all(
            (
                Account(
                    id="account-1",
                    email="one@example.test",
                    normalized_email="one@example.test",
                ),
                User(
                    id="user-1",
                    tenant_id="tenant-1",
                    account_id="account-1",
                    email="one@example.test",
                ),
                CalendarCollection(
                    id="calendar-1",
                    tenant_id="tenant-1",
                    slug="private",
                    name="Private calendar",
                    owner_type="user",
                    owner_id="user-1",
                    visibility="private",
                    created_by_user_id="user-1",
                ),
                CalendarEvent(
                    id="event-1",
                    tenant_id="tenant-1",
                    calendar_id="calendar-1",
                    uid="event-1@example.test",
                    summary="Permit review",
                    description="Review monthly permits",
                    start_at=start,
                    end_at=start + timedelta(hours=1),
                ),
            )
        )
        self.session.commit()
        self.source = CalendarSearchSource()

    def tearDown(self) -> None:
        self.session.close()
        self.engine.dispose()

    def test_private_calendar_is_visible_only_to_current_owner(self) -> None:
        page = self.source.backfill(
            self.session,
            request=SearchBackfillRequest(
                tenant_id="tenant-1",
                provider_id=PROVIDER_ID,
                resource_type=RESOURCE_TYPE,
                rebuild_id="rebuild-1",
            ),
        )
        self.assertEqual(("event-1",), tuple(doc.resource_id for doc in page.documents))
        reference = SearchResourceReference(
            tenant_id="tenant-1",
            module_id="calendar",
            resource_type=RESOURCE_TYPE,
            resource_id="event-1",
        )
        request = SearchAuthorizationRequest(reference=reference, source_revision="1")
        self.assertTrue(
            self.source.authorize(
                self.session,
                _principal("user-1"),
                requests=(request,),
            )[reference.key]
        )
        self.assertFalse(
            self.source.authorize(
                self.session,
                _principal("user-2"),
                requests=(request,),
            )[reference.key]
        )


def _principal(user_id: str) -> ApiPrincipal:
    return ApiPrincipal(
        principal=PrincipalRef(
            account_id=f"account-{user_id}",
            membership_id=user_id,
            tenant_id="tenant-1",
            scopes=frozenset({"calendar:event:read"}),
        ),
        account=SimpleNamespace(id=f"account-{user_id}"),
        user=SimpleNamespace(id=user_id),
    )


if __name__ == "__main__":
    unittest.main()