"""Pytest fixtures.

Each test gets a fresh in-memory SQLite connection with the FULL schema applied
(all 9 tables), so all entities can be tested in isolation without Alembic.
Follow the `vacation_repo` / `vacation_service` pattern to add fixtures for
other entities.
"""

from collections.abc import AsyncIterator, Iterator
from dataclasses import dataclass
from datetime import date, datetime
from uuid import UUID, uuid4

import aiosqlite
import pytest
import pytest_asyncio
from httpx import ASGITransport, AsyncClient

from app.db.connection import ensure_schema
from app.dependencies import get_connection, get_current_user
from app.entities.child import Child
from app.entities.personal_data import PersonalData
from app.entities.user import User
from app.entities.workspace import Workspace
from app.main import app
from app.rate_limit import limiter
from app.repositories_impl.sqlite.child_repository import SQLiteChildRepository
from app.repositories_impl.sqlite.day_assertion_repository import SQLiteDayAssertionRepository
from app.repositories_impl.sqlite.day_override_repository import SQLiteDayOverrideRepository
from app.repositories_impl.sqlite.leave_wish_repository import SQLiteLeaveWishRepository
from app.repositories_impl.sqlite.parental_leave_repository import SQLiteParentalLeaveRepository
from app.repositories_impl.sqlite.personal_data_repository import SQLitePersonalDataRepository
from app.repositories_impl.sqlite.planned_leave_repository import SQLitePlannedLeaveRepository
from app.repositories_impl.sqlite.preschool_planning_days_repository import (
    SQLitePreschoolPlanningDaysRepository,
)
from app.repositories_impl.sqlite.tip_dismissal_repository import SQLiteTipDismissalRepository
from app.repositories_impl.sqlite.unit_of_work import SQLiteUnitOfWork
from app.repositories_impl.sqlite.user_repository import SQLiteUserRepository
from app.repositories_impl.sqlite.vacation_days_repository import (
    SQLiteVacationDaysRepository,
)
from app.repositories_impl.sqlite.workspace_repository import (
    SQLiteWorkspaceInvitationRepository,
    SQLiteWorkspaceRepository,
)
from app.services.allocation_service import AllocationInputLoader, PlanningEngineService
from app.services.analytics_service import AnalyticsService
from app.services.auth_service import AuthService
from app.services.child_service import ChildService
from app.services.day_assertion_service import DayAssertionService
from app.services.day_override_service import DayOverrideService
from app.services.leave_wish_service import LeaveWishService
from app.services.planning_service import PlanningService
from app.services.preschool_planning_days_service import PreschoolPlanningDaysService
from app.services.tips_service import TipsService
from app.services.vacation_days_service import VacationDaysService
from app.services.workspace_service import WorkspaceService


# ---------------------------------------------------------------------------
# Rate limiting — OFF by default for the whole test session.
#
# `limiter` (app/rate_limit.py) keys on remote address via slowapi's
# `get_remote_address`, which assumes one IP == one client. Every test in a
# pytest run shares the same `app.main.app` instance and drives it through
# `httpx.ASGITransport`, so the whole session looks like one client to the
# limiter — the same problem `frontend/playwright.config.ts` already works
# around for the E2E suite via `APP_RATE_LIMIT_ENABLED=false`. Left on here,
# `tests/integration/test_user_journey.py` alone makes exactly ten
# `/api/auth/register` calls, spending the entire 10/minute budget, so any
# other integration test that registers a user 429s if it happens to run
# afterwards in the same process — a suite that was only green by accident
# of file ordering.
#
# We flip the already-constructed `limiter` object directly rather than
# `settings.rate_limit_enabled`: `Limiter(..., enabled=...)` reads that
# setting once at import time in app/rate_limit.py, so mutating `settings`
# afterwards would no longer reach the singleton the app actually calls.
# Production is unaffected — `settings.rate_limit_enabled` still defaults to
# True, so a deployed process still builds its limiter enabled; only this
# pytest process ever runs the line below.
limiter.enabled = False


@pytest.fixture
def rate_limiting_enabled() -> Iterator[None]:
    """Opt-in fixture for a test that specifically exercises rate limiting.

    Turns the shared limiter back on and clears its in-memory counters
    first — in case some earlier test's traffic ever slipped through while
    it was "enabled" — then restores both the disabled default and a clean
    counter set afterwards. `limiter` is a process-global in-memory
    limiter, so without this a test that enables it would leak state into
    whichever test runs next.
    """
    limiter.reset()
    limiter.enabled = True
    try:
        yield
    finally:
        limiter.enabled = False
        limiter.reset()


@dataclass
class SeededIds:
    workspace_id: UUID
    personal_data_uuid: UUID
    child_id: UUID


@pytest_asyncio.fixture
async def connection() -> AsyncIterator[aiosqlite.Connection]:
    conn = await aiosqlite.connect(":memory:")
    conn.row_factory = aiosqlite.Row
    await conn.execute("PRAGMA foreign_keys = ON;")
    await ensure_schema(conn)
    try:
        yield conn
    finally:
        await conn.close()


# ---------------------------------------------------------------------------
# VacationDays (reference slice — keep unchanged)
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def vacation_repo(
    connection: aiosqlite.Connection,
) -> SQLiteVacationDaysRepository:
    return SQLiteVacationDaysRepository(connection)


@pytest_asyncio.fixture
async def vacation_service(
    vacation_repo: SQLiteVacationDaysRepository,
) -> VacationDaysService:
    return VacationDaysService(vacation_repo)


# ---------------------------------------------------------------------------
# Auth
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def user_repo(connection: aiosqlite.Connection) -> SQLiteUserRepository:
    return SQLiteUserRepository(connection)


@pytest_asyncio.fixture
async def personal_data_repo(
    connection: aiosqlite.Connection,
) -> SQLitePersonalDataRepository:
    return SQLitePersonalDataRepository(connection)


@pytest_asyncio.fixture
async def auth_service(
    user_repo: SQLiteUserRepository,
    personal_data_repo: SQLitePersonalDataRepository,
    workspace_repo: SQLiteWorkspaceRepository,
    invitation_repo: SQLiteWorkspaceInvitationRepository,
) -> AuthService:
    return AuthService(user_repo, personal_data_repo, workspace_repo, inv_repo=invitation_repo)


# ---------------------------------------------------------------------------
# Workspace
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def workspace_repo(
    connection: aiosqlite.Connection,
) -> SQLiteWorkspaceRepository:
    return SQLiteWorkspaceRepository(connection)


@pytest_asyncio.fixture
async def invitation_repo(
    connection: aiosqlite.Connection,
) -> SQLiteWorkspaceInvitationRepository:
    return SQLiteWorkspaceInvitationRepository(connection)


@pytest_asyncio.fixture
async def workspace_service(
    workspace_repo: SQLiteWorkspaceRepository,
    invitation_repo: SQLiteWorkspaceInvitationRepository,
    personal_data_repo: SQLitePersonalDataRepository,
    user_repo: SQLiteUserRepository,
    leave_wish_repo: SQLiteLeaveWishRepository,
    planned_leave_repo: SQLitePlannedLeaveRepository,
    parental_leave_repo: SQLiteParentalLeaveRepository,
    vacation_repo: SQLiteVacationDaysRepository,
) -> WorkspaceService:
    return WorkspaceService(
        workspace_repo,
        invitation_repo,
        personal_data_repo,
        user_repo,
        leave_wish_repo,
        planned_leave_repo,
        parental_leave_repo,
        vacation_repo,
    )


# ---------------------------------------------------------------------------
# Shared FK seed — used by any test that needs real workspace + personal_data rows
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def seeded_ids(
    workspace_repo: SQLiteWorkspaceRepository,
    personal_data_repo: SQLitePersonalDataRepository,
    child_repo: SQLiteChildRepository,
) -> SeededIds:
    """Pre-create a workspace + personal_data + child row so FK constraints pass."""
    ws = await workspace_repo.create(
        Workspace(id=uuid4(), name="Test WS", created_at=datetime.now())
    )
    pd = await personal_data_repo.create(
        PersonalData(
            uuid=uuid4(), workspace_id=ws.id, name="Test Parent", created_at=datetime.now()
        )
    )
    child = await child_repo.create(
        Child(
            id=uuid4(),
            workspace_id=ws.id,
            name="Test Child",
            birth_date=date(2024, 1, 1),
            created_at=datetime.now(),
        )
    )
    return SeededIds(workspace_id=ws.id, personal_data_uuid=pd.uuid, child_id=child.id)


# ---------------------------------------------------------------------------
# Shared authenticated HTTP client — bound to `seeded_ids`'s workspace.
#
# T1 authz work: every router now rejects ids outside the caller's workspace,
# so a router test's `client` must be authenticated as a real member of
# whatever workspace the test operates on. This fixture is that identity for
# any router test built around `seeded_ids` (see `tests/unit/test_fetch_data_
# router.py`). Router tests that seed their own bespoke workspace per test
# (e.g. `test_plan_router.py`) still define their own local `client`/current-
# user fixture bound to THAT workspace instead — a single global identity
# can't satisfy both shapes.
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def current_user(seeded_ids: SeededIds) -> User:
    """A real, logged-in user whose PersonalData is `seeded_ids.personal_data_uuid`."""
    return User(
        id=uuid4(),
        personal_data_uuid=seeded_ids.personal_data_uuid,
        email="seeded-user@example.com",
        hashed_password="not-a-real-hash",
        created_at=datetime.now(),
    )


@pytest_asyncio.fixture
async def authed_client(
    connection: aiosqlite.Connection, current_user: User
) -> AsyncIterator[AsyncClient]:
    """An httpx client against the real app, authenticated as `current_user`
    and wired to the test's in-memory `connection` — the same technique
    every router test file uses, consolidated here for tests keyed off
    `seeded_ids`.
    """
    app.dependency_overrides[get_connection] = lambda: connection
    app.dependency_overrides[get_current_user] = lambda: current_user
    try:
        async with AsyncClient(transport=ASGITransport(app=app), base_url="http://test") as ac:
            yield ac
    finally:
        app.dependency_overrides.pop(get_connection, None)
        app.dependency_overrides.pop(get_current_user, None)


# ---------------------------------------------------------------------------
# Child & leave
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def child_repo(connection: aiosqlite.Connection) -> SQLiteChildRepository:
    return SQLiteChildRepository(connection)


@pytest_asyncio.fixture
async def parental_leave_repo(
    connection: aiosqlite.Connection,
) -> SQLiteParentalLeaveRepository:
    return SQLiteParentalLeaveRepository(connection)


@pytest_asyncio.fixture
async def planned_leave_repo(
    connection: aiosqlite.Connection,
) -> SQLitePlannedLeaveRepository:
    return SQLitePlannedLeaveRepository(connection)


# ---------------------------------------------------------------------------
# LeaveWish
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def leave_wish_repo(
    connection: aiosqlite.Connection,
) -> SQLiteLeaveWishRepository:
    return SQLiteLeaveWishRepository(connection)


@pytest_asyncio.fixture
async def leave_wish_service(
    leave_wish_repo: SQLiteLeaveWishRepository,
    planned_leave_repo: SQLitePlannedLeaveRepository,
    child_repo: SQLiteChildRepository,
    day_assertion_repo: SQLiteDayAssertionRepository,
) -> LeaveWishService:
    # `child_repo` lets an open-ended ("until the child turns 4") series
    # materialise against the child's real birth date; see LeaveWishService.
    # `day_assertion_repo` lets `delete()` clear a pinned/promoted row's
    # assertion alongside the row itself (restructure step 3b).
    return LeaveWishService(leave_wish_repo, planned_leave_repo, child_repo, day_assertion_repo)


@pytest_asyncio.fixture
async def leave_wish_service_with_uow(
    leave_wish_repo: SQLiteLeaveWishRepository,
    planned_leave_repo: SQLitePlannedLeaveRepository,
    child_repo: SQLiteChildRepository,
    day_assertion_repo: SQLiteDayAssertionRepository,
    sqlite_uow: SQLiteUnitOfWork,
) -> LeaveWishService:
    """A `LeaveWishService` wired with a real `SQLiteUnitOfWork` — for tests

    exercising `create`/`update`/`delete`'s multi-row atomicity (this
    service previously had none at all). See `planning_service_with_uow`
    above for the same pattern.
    """
    return LeaveWishService(
        leave_wish_repo, planned_leave_repo, child_repo, day_assertion_repo, uow=sqlite_uow
    )


# ---------------------------------------------------------------------------
# DayOverride
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def day_override_repo(
    connection: aiosqlite.Connection,
) -> SQLiteDayOverrideRepository:
    return SQLiteDayOverrideRepository(connection)


@pytest_asyncio.fixture
async def day_override_service(
    day_override_repo: SQLiteDayOverrideRepository,
) -> DayOverrideService:
    return DayOverrideService(day_override_repo)


# ---------------------------------------------------------------------------
# DayAssertion (restructure step 3 — see app/entities/day_assertion.py)
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def day_assertion_repo(
    connection: aiosqlite.Connection,
) -> SQLiteDayAssertionRepository:
    return SQLiteDayAssertionRepository(connection)


@pytest_asyncio.fixture
async def day_assertion_service(
    day_assertion_repo: SQLiteDayAssertionRepository,
) -> DayAssertionService:
    return DayAssertionService(day_assertion_repo)


@pytest_asyncio.fixture
async def day_assertion_service_with_uow(
    day_assertion_repo: SQLiteDayAssertionRepository,
    planned_leave_repo: SQLitePlannedLeaveRepository,
    sqlite_uow: SQLiteUnitOfWork,
) -> DayAssertionService:
    """A `DayAssertionService` wired with mirroring AND a real `SQLiteUnitOfWork`

    — for tests that specifically exercise the assert-then-mirror atomicity
    fix (a failure mid-mirror must leave no assertion committed). See
    `planning_service_with_uow` above for the same pattern.
    """
    return DayAssertionService(
        day_assertion_repo,
        planned_leave_repo=planned_leave_repo,
        uow=sqlite_uow,
    )


@pytest_asyncio.fixture
async def child_service(
    child_repo: SQLiteChildRepository,
) -> ChildService:
    return ChildService(child_repo)


@pytest_asyncio.fixture
async def analytics_service(
    parental_leave_repo: SQLiteParentalLeaveRepository,
    planned_leave_repo: SQLitePlannedLeaveRepository,
    child_repo: SQLiteChildRepository,
    personal_data_repo: SQLitePersonalDataRepository,
    workspace_repo: SQLiteWorkspaceRepository,
    vacation_repo: SQLiteVacationDaysRepository,
) -> AnalyticsService:
    return AnalyticsService(
        parental_leave_repo,
        planned_leave_repo,
        child_repo,
        personal_data_repo,
        workspace_repo,
        vacation_repo,
    )


@pytest_asyncio.fixture
async def allocation_input_loader(
    workspace_repo: SQLiteWorkspaceRepository,
    child_repo: SQLiteChildRepository,
    personal_data_repo: SQLitePersonalDataRepository,
    parental_leave_repo: SQLiteParentalLeaveRepository,
    vacation_repo: SQLiteVacationDaysRepository,
    planned_leave_repo: SQLitePlannedLeaveRepository,
    leave_wish_repo: SQLiteLeaveWishRepository,
    day_override_repo: SQLiteDayOverrideRepository,
    day_assertion_repo: SQLiteDayAssertionRepository,
) -> AllocationInputLoader:
    return AllocationInputLoader(
        workspace_repo=workspace_repo,
        child_repo=child_repo,
        personal_data_repo=personal_data_repo,
        parental_leave_repo=parental_leave_repo,
        vacation_repo=vacation_repo,
        planned_leave_repo=planned_leave_repo,
        leave_wish_repo=leave_wish_repo,
        day_override_repo=day_override_repo,
        day_assertion_repo=day_assertion_repo,
    )


@pytest_asyncio.fixture
async def planning_engine_service(
    allocation_input_loader: AllocationInputLoader,
) -> PlanningEngineService:
    return PlanningEngineService(allocation_input_loader)


@pytest_asyncio.fixture
async def planning_service(
    planned_leave_repo: SQLitePlannedLeaveRepository,
    analytics_service: AnalyticsService,
    parental_leave_repo: SQLiteParentalLeaveRepository,
    vacation_repo: SQLiteVacationDaysRepository,
    planning_engine_service: PlanningEngineService,
    leave_wish_service: LeaveWishService,
    day_assertion_repo: SQLiteDayAssertionRepository,
) -> PlanningService:
    return PlanningService(
        planned_leave_repo,
        analytics_service,
        parental_leave_repo,
        vacation_repo,
        planning_engine_service,
        leave_wish_service=leave_wish_service,
        day_assertion_repo=day_assertion_repo,
    )


# ---------------------------------------------------------------------------
# Unit of work — a real `SQLiteUnitOfWork` bound to the test's shared
# `connection`, for tests that specifically exercise atomicity/locking (see
# `tests/unit/test_db_unit_of_work.py`). `planning_service` above deliberately
# keeps its default no-op unit of work so every other test's per-write-commit
# behavior stays exactly as it is; use `planning_service_with_uow` instead
# when a test needs the real thing.
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def sqlite_uow(connection: aiosqlite.Connection) -> SQLiteUnitOfWork:
    return SQLiteUnitOfWork(connection)


@pytest_asyncio.fixture
async def planning_service_with_uow(
    planned_leave_repo: SQLitePlannedLeaveRepository,
    analytics_service: AnalyticsService,
    parental_leave_repo: SQLiteParentalLeaveRepository,
    vacation_repo: SQLiteVacationDaysRepository,
    planning_engine_service: PlanningEngineService,
    leave_wish_service: LeaveWishService,
    sqlite_uow: SQLiteUnitOfWork,
    day_assertion_repo: SQLiteDayAssertionRepository,
) -> PlanningService:
    return PlanningService(
        planned_leave_repo,
        analytics_service,
        parental_leave_repo,
        vacation_repo,
        planning_engine_service,
        uow=sqlite_uow,
        leave_wish_service=leave_wish_service,
        day_assertion_repo=day_assertion_repo,
    )


# ---------------------------------------------------------------------------
# Tips
# ---------------------------------------------------------------------------


@pytest_asyncio.fixture
async def tip_dismissal_repo(
    connection: aiosqlite.Connection,
) -> SQLiteTipDismissalRepository:
    return SQLiteTipDismissalRepository(connection)


@pytest_asyncio.fixture
async def preschool_planning_days_repo(
    connection: aiosqlite.Connection,
) -> SQLitePreschoolPlanningDaysRepository:
    return SQLitePreschoolPlanningDaysRepository(connection)


@pytest_asyncio.fixture
async def preschool_planning_days_service(
    preschool_planning_days_repo: SQLitePreschoolPlanningDaysRepository,
) -> PreschoolPlanningDaysService:
    return PreschoolPlanningDaysService(preschool_planning_days_repo)


@pytest_asyncio.fixture
async def tips_service(
    parental_leave_repo: SQLiteParentalLeaveRepository,
    planned_leave_repo: SQLitePlannedLeaveRepository,
    child_repo: SQLiteChildRepository,
    personal_data_repo: SQLitePersonalDataRepository,
    vacation_repo: SQLiteVacationDaysRepository,
    leave_wish_repo: SQLiteLeaveWishRepository,
    tip_dismissal_repo: SQLiteTipDismissalRepository,
) -> TipsService:
    return TipsService(
        parental_leave_repo,
        planned_leave_repo,
        child_repo,
        personal_data_repo,
        vacation_repo,
        leave_wish_repo,
        tip_dismissal_repo,
    )