import uuid

from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.ext.asyncio import AsyncSession

from app.crud import crud_championship
from app.database import get_db
from app.dependencies import get_admin, get_approved_user, get_organizer
from app.models.user import User
from app.schemas.championship import ChampionshipCreate, ChampionshipOut, ChampionshipUpdate

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


@router.get("", response_model=list[ChampionshipOut])
async def list_championships(
    status: str | None = None,
    skip: int = 0,
    limit: int = 20,
    _user: User = Depends(get_approved_user),
    db: AsyncSession = Depends(get_db),
):
    return await crud_championship.list_all(db, status=status, skip=skip, limit=limit)


@router.get("/{championship_id}", response_model=ChampionshipOut)
async def get_championship(
    championship_id: str,
    _user: User = Depends(get_approved_user),
    db: AsyncSession = Depends(get_db),
):
    champ = await crud_championship.get(db, championship_id)
    if not champ:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
    return champ


@router.post("", response_model=ChampionshipOut, status_code=status.HTTP_201_CREATED)
async def create_championship(
    body: ChampionshipCreate,
    _organizer: User = Depends(get_organizer),
    db: AsyncSession = Depends(get_db),
):
    return await crud_championship.create(db, **body.model_dump(), source="manual")


@router.patch("/{championship_id}", response_model=ChampionshipOut)
async def update_championship(
    championship_id: str,
    body: ChampionshipUpdate,
    _organizer: User = Depends(get_organizer),
    db: AsyncSession = Depends(get_db),
):
    champ = await crud_championship.get(db, championship_id)
    if not champ:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
    updates = {k: v for k, v in body.model_dump().items() if v is not None}
    return await crud_championship.update(db, champ, **updates)


@router.delete("/{championship_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_championship(
    championship_id: str,
    _admin: User = Depends(get_admin),
    db: AsyncSession = Depends(get_db),
):
    champ = await crud_championship.get(db, championship_id)
    if not champ:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
    await crud_championship.delete(db, champ)