import uuid

from fastapi import APIRouter, status

from app.api.deps import CurrentUser, SessionDep
from app.schemas.name import NameCreate, NameRead, NameUpdate
from app.services import name_service, tree_service

# Names are nested under their person (which is nested under the tree tenant).
router = APIRouter(prefix="/trees", tags=["names"])


@router.get("/{tree_id}/persons/{person_id}/names", response_model=list[NameRead])
async def list_names(
    tree_id: uuid.UUID, person_id: uuid.UUID, session: SessionDep, current: CurrentUser
) -> list[NameRead]:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    names = await name_service.list_names(
        session, viewer_id=current.id, tree=tree, person_id=person_id
    )
    return [NameRead.model_validate(n) for n in names]


@router.post(
    "/{tree_id}/persons/{person_id}/names",
    response_model=NameRead,
    status_code=status.HTTP_201_CREATED,
)
async def create_name(
    tree_id: uuid.UUID,
    person_id: uuid.UUID,
    data: NameCreate,
    session: SessionDep,
    current: CurrentUser,
) -> NameRead:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    name = await name_service.create_name(
        session,
        actor=current,
        tree=tree,
        person_id=person_id,
        name_type=data.name_type,
        given=data.given,
        surname=data.surname,
        prefix=data.prefix,
        suffix=data.suffix,
        nickname=data.nickname,
        is_primary=data.is_primary,
    )
    return NameRead.model_validate(name)


@router.patch(
    "/{tree_id}/persons/{person_id}/names/{name_id}", response_model=NameRead
)
async def update_name(
    tree_id: uuid.UUID,
    person_id: uuid.UUID,
    name_id: uuid.UUID,
    data: NameUpdate,
    session: SessionDep,
    current: CurrentUser,
) -> NameRead:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    name = await name_service.update_name(
        session,
        actor=current,
        tree=tree,
        person_id=person_id,
        name_id=name_id,
        changes=data.model_dump(exclude_unset=True),
    )
    return NameRead.model_validate(name)


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