import uuid

from fastapi import APIRouter, File, UploadFile

from app.api.deps import CurrentUser, SessionDep
from app.schemas.cleanup import (
    CleanupResult,
    DeceasedApply,
    DeceasedCandidate,
    GenderApply,
    GenderProposal,
    NameApply,
    NameIssue,
)
from app.services import cleanup_service, tree_service

router = APIRouter(prefix="/trees", tags=["cleanup"])


@router.get("/{tree_id}/cleanup/deceased", response_model=list[DeceasedCandidate])
async def preview_deceased(
    tree_id: uuid.UUID,
    session: SessionDep,
    current: CurrentUser,
    born_on_or_before: int = 1930,
) -> list[DeceasedCandidate]:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    rows = await cleanup_service.preview_deceased(
        session, actor=current, tree=tree, year=born_on_or_before
    )
    return [DeceasedCandidate(**r) for r in rows]


@router.post("/{tree_id}/cleanup/deceased", response_model=CleanupResult)
async def apply_deceased(
    tree_id: uuid.UUID, data: DeceasedApply, session: SessionDep, current: CurrentUser
) -> CleanupResult:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    n = await cleanup_service.apply_deceased(
        session, actor=current, tree=tree, person_ids=data.person_ids
    )
    return CleanupResult(updated=n)


@router.post("/{tree_id}/cleanup/gender/preview", response_model=list[GenderProposal])
async def preview_gender(
    tree_id: uuid.UUID,
    session: SessionDep,
    current: CurrentUser,
    file: UploadFile = File(...),
) -> list[GenderProposal]:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    text = (await file.read()).decode("utf-8", errors="replace")
    rows = await cleanup_service.preview_gender(
        session, actor=current, tree=tree, gedcom_text=text
    )
    return [GenderProposal(**r) for r in rows]


@router.get("/{tree_id}/cleanup/gender/guess", response_model=list[GenderProposal])
async def guess_gender(
    tree_id: uuid.UUID, session: SessionDep, current: CurrentUser
) -> list[GenderProposal]:
    """Best-guess sex from first names (bundled dictionary) for people missing it."""
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    rows = await cleanup_service.guess_gender_by_name(session, actor=current, tree=tree)
    return [GenderProposal(**r) for r in rows]


@router.get("/{tree_id}/cleanup/gender/from-spouse", response_model=list[GenderProposal])
async def guess_gender_from_spouse(
    tree_id: uuid.UUID, session: SessionDep, current: CurrentUser
) -> list[GenderProposal]:
    """Infer a missing sex from a partner whose sex is set (opposite-sex couple)."""
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    rows = await cleanup_service.guess_gender_by_spouse(session, actor=current, tree=tree)
    return [GenderProposal(**r) for r in rows]


@router.post("/{tree_id}/cleanup/gender", response_model=CleanupResult)
async def apply_gender(
    tree_id: uuid.UUID, data: GenderApply, session: SessionDep, current: CurrentUser
) -> CleanupResult:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    n = await cleanup_service.apply_gender(
        session,
        actor=current,
        tree=tree,
        updates=[u.model_dump() for u in data.updates],
    )
    return CleanupResult(updated=n)


@router.get("/{tree_id}/cleanup/names", response_model=list[NameIssue])
async def preview_names(
    tree_id: uuid.UUID, session: SessionDep, current: CurrentUser
) -> list[NameIssue]:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    rows = await cleanup_service.preview_names(session, actor=current, tree=tree)
    return [NameIssue(**r) for r in rows]


@router.post("/{tree_id}/cleanup/names", response_model=CleanupResult)
async def apply_names(
    tree_id: uuid.UUID, data: NameApply, session: SessionDep, current: CurrentUser
) -> CleanupResult:
    tree = await tree_service.get_tree(session, viewer_id=current.id, tree_id=tree_id)
    n = await cleanup_service.apply_names(
        session, actor=current, tree=tree, edits=[e.model_dump() for e in data.edits]
    )
    return CleanupResult(updated=n)