"""HTTP routes for preschool planning ("studiedagar") days per year.

Routers stay thin: validate via Pydantic, call the service, map domain
errors to HTTP. Scoped per child via `WorkspaceScope.check_child`, which
404s (never 403) on a missing or foreign-workspace child id.
"""

from uuid import UUID

from fastapi import APIRouter, HTTPException, status

from app.dependencies import PreschoolPlanningDaysServiceDep, WorkspaceScopeDep
from app.models.preschool_planning_days import (
    PreschoolPlanningDaysPlannedUpdate,
    PreschoolPlanningDaysResponse,
    PreschoolPlanningDaysTakenUpdate,
)
from app.utils.errors import ValidationError

router = APIRouter(prefix="/api/preschool-planning-days", tags=["preschool-planning-days"])


@router.put("/{child_id}/{year}/planned", response_model=PreschoolPlanningDaysResponse)
async def upsert_planned_days(
    child_id: UUID,
    year: int,
    payload: PreschoolPlanningDaysPlannedUpdate,
    service: PreschoolPlanningDaysServiceDep,
    scope: WorkspaceScopeDep,
) -> PreschoolPlanningDaysResponse:
    child = await scope.check_child(child_id)
    try:
        entity = await service.upsert_planned(child, year, payload.planned_days)
    except ValidationError as exc:
        raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, str(exc)) from exc
    return PreschoolPlanningDaysResponse.from_entity(entity)


@router.put("/{child_id}/{year}/taken", response_model=PreschoolPlanningDaysResponse)
async def record_taken_days(
    child_id: UUID,
    year: int,
    payload: PreschoolPlanningDaysTakenUpdate,
    service: PreschoolPlanningDaysServiceDep,
    scope: WorkspaceScopeDep,
) -> PreschoolPlanningDaysResponse:
    child = await scope.check_child(child_id)
    try:
        entity = await service.record_taken(child, year, payload.taken_days)
    except ValidationError as exc:
        raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, str(exc)) from exc
    return PreschoolPlanningDaysResponse.from_entity(entity)


@router.get("/{child_id}/{year}", response_model=PreschoolPlanningDaysResponse)
async def get_year(
    child_id: UUID,
    year: int,
    service: PreschoolPlanningDaysServiceDep,
    scope: WorkspaceScopeDep,
) -> PreschoolPlanningDaysResponse:
    child = await scope.check_child(child_id)
    entity = await service.get_by_child_year(child_id, year)
    if entity is None:
        return PreschoolPlanningDaysResponse.default_for(child, year)
    return PreschoolPlanningDaysResponse.from_entity(entity)


@router.get("/{child_id}", response_model=list[PreschoolPlanningDaysResponse])
async def list_years(
    child_id: UUID,
    service: PreschoolPlanningDaysServiceDep,
    scope: WorkspaceScopeDep,
) -> list[PreschoolPlanningDaysResponse]:
    await scope.check_child(child_id)
    entities = await service.list_for_child(child_id)
    return [PreschoolPlanningDaysResponse.from_entity(e) for e in entities]