"""HTTP routes for leave wishes.

Routers stay thin: validate via Pydantic, call the service, map domain errors
to HTTP. Business logic (recurrence/parent_mode validation, month-day range
checks) lives in LeaveWishService. See PLANNING_ENGINE_SPEC.md §4.
"""

from uuid import UUID

from fastapi import APIRouter, HTTPException, status

from app.dependencies import LeaveWishServiceDep, WorkspaceIdDep, WorkspaceScopeDep
from app.models.leave_wish import (
    LeaveWishCreate,
    LeaveWishResponse,
    LeaveWishUpdate,
)
from app.utils.errors import NotFoundError, ValidationError

router = APIRouter(prefix="/api/leave-wishes", tags=["leave-wishes"])


@router.post("", response_model=LeaveWishResponse, status_code=status.HTTP_201_CREATED)
async def create_leave_wish(
    payload: LeaveWishCreate, service: LeaveWishServiceDep, scope: WorkspaceScopeDep
) -> LeaveWishResponse:
    scope.check_workspace(payload.workspace_id)
    if payload.child_id is not None:
        await scope.check_child(payload.child_id)
    if payload.parent_personal_data_uuid is not None:
        await scope.check_member(payload.parent_personal_data_uuid)
    try:
        entity = await service.create(
            workspace_id=payload.workspace_id,
            child_id=payload.child_id,
            name=payload.name,
            name_message_key=payload.name_message_key,
            window_start_month=payload.window_start_month,
            window_start_day=payload.window_start_day,
            window_end_month=payload.window_end_month,
            window_end_day=payload.window_end_day,
            target_weeks=payload.target_weeks,
            target_days=payload.target_days,
            recurrence=payload.recurrence,
            first_year=payload.first_year,
            last_year=payload.last_year,
            priority=payload.priority,
            parent_mode=payload.parent_mode,
            parent_personal_data_uuid=payload.parent_personal_data_uuid,
            window_mode=payload.window_mode,
            wants_dubbeldag=payload.wants_dubbeldag,
        )
    except ValidationError as exc:
        raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, str(exc)) from exc
    return LeaveWishResponse.from_entity(entity)


@router.get("/{workspace_id}", response_model=list[LeaveWishResponse])
async def list_leave_wishes(
    workspace_id: WorkspaceIdDep, service: LeaveWishServiceDep
) -> list[LeaveWishResponse]:
    """List all leave wishes for a workspace. Matches PLANNING_ENGINE_SPEC.md §4
    (`GET /api/leave-wishes/{workspace_id}` — list-by-workspace, not get-by-id)."""
    entities = await service.list_for_workspace(workspace_id)
    return [LeaveWishResponse.from_entity(e) for e in entities]


@router.put("/{leave_wish_id}", response_model=LeaveWishResponse)
async def update_leave_wish(
    leave_wish_id: UUID,
    payload: LeaveWishUpdate,
    service: LeaveWishServiceDep,
    scope: WorkspaceScopeDep,
) -> LeaveWishResponse:
    if payload.child_id is not None:
        await scope.check_child(payload.child_id)
    if payload.parent_personal_data_uuid is not None:
        await scope.check_member(payload.parent_personal_data_uuid)
    fields_set = payload.model_fields_set
    try:
        entity = await service.update(
            leave_wish_id=leave_wish_id,
            workspace_id=scope.workspace_id,
            child_id=payload.child_id,
            name=payload.name,
            name_message_key=payload.name_message_key,
            window_start_month=payload.window_start_month,
            window_start_day=payload.window_start_day,
            window_end_month=payload.window_end_month,
            window_end_day=payload.window_end_day,
            target_weeks=payload.target_weeks,
            target_days=payload.target_days,
            recurrence=payload.recurrence,
            first_year=payload.first_year,
            last_year=payload.last_year,
            priority=payload.priority,
            parent_mode=payload.parent_mode,
            parent_personal_data_uuid=payload.parent_personal_data_uuid,
            window_mode=payload.window_mode,
            wants_dubbeldag=payload.wants_dubbeldag,
            _clear_child_id="child_id" in fields_set and payload.child_id is None,
            _clear_last_year="last_year" in fields_set and payload.last_year is None,
            _clear_parent_personal_data_uuid=(
                "parent_personal_data_uuid" in fields_set
                and payload.parent_personal_data_uuid is None
            ),
            _clear_name_message_key=(
                "name_message_key" in fields_set and payload.name_message_key is None
            ),
            _clear_target_days="target_days" in fields_set and payload.target_days is None,
        )
    except ValidationError as exc:
        raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, str(exc)) from exc
    except NotFoundError as exc:
        raise HTTPException(status.HTTP_404_NOT_FOUND, str(exc)) from exc
    return LeaveWishResponse.from_entity(entity)


@router.delete("/{leave_wish_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_leave_wish(
    leave_wish_id: UUID, service: LeaveWishServiceDep, scope: WorkspaceScopeDep
) -> None:
    try:
        await service.delete(leave_wish_id, workspace_id=scope.workspace_id)
    except NotFoundError as exc:
        raise HTTPException(status.HTTP_404_NOT_FOUND, str(exc)) from exc