import uuid

from fastapi import APIRouter, status

from app.api.deps import CurrentUser, SessionDep
from app.schemas.person import PersonCreate, PersonRead
from app.services import person_service, tree_service

# Persons are nested under their tree (the tenant boundary).
router = APIRouter(prefix="/trees", tags=["persons"])


@router.post(
    "/{tree_id}/persons",
    response_model=PersonRead,
    status_code=status.HTTP_201_CREATED,
)
async def create_person(
    tree_id: uuid.UUID, data: PersonCreate, session: SessionDep, current: CurrentUser
) -> PersonRead:
    # get_tree enforces existence + view access; create_person enforces edit rights.
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    person = await person_service.create_person(
        session,
        actor=current,
        tree=tree,
        given=data.given,
        surname=data.surname,
        gender=data.gender,
        is_living=data.is_living,
        privacy_setting=data.privacy,
        notes=data.notes,
    )
    return PersonRead.model_validate(person)


@router.get("/{tree_id}/persons", response_model=list[PersonRead])
async def list_persons(
    tree_id: uuid.UUID, session: SessionDep, current: CurrentUser, deleted: bool = False
) -> list[PersonRead]:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    if deleted:
        persons = await person_service.list_deleted_persons(
            session, viewer_id=current.id, tree=tree
        )
    else:
        persons = await person_service.list_persons(session, viewer_id=current.id, tree=tree)
    return [PersonRead.model_validate(p) for p in persons]


@router.delete("/{tree_id}/persons/{person_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_person(
    tree_id: uuid.UUID, person_id: uuid.UUID, session: SessionDep, current: CurrentUser
) -> None:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    await person_service.delete_person(session, actor=current, tree=tree, person_id=person_id)


@router.post("/{tree_id}/persons/{person_id}/restore", response_model=PersonRead)
async def restore_person(
    tree_id: uuid.UUID, person_id: uuid.UUID, session: SessionDep, current: CurrentUser
) -> PersonRead:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    person = await person_service.restore_person(
        session, actor=current, tree=tree, person_id=person_id
    )
    return PersonRead.model_validate(person)


@router.get("/{tree_id}/persons/{person_id}", response_model=PersonRead)
async def get_person(
    tree_id: uuid.UUID, person_id: uuid.UUID, session: SessionDep, current: CurrentUser
) -> PersonRead:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    person = await person_service.get_person(
        session, viewer_id=current.id, tree=tree, person_id=person_id
    )
    return PersonRead.model_validate(person)