"""Admin API: EPG source management."""
from fastapi import APIRouter, Depends, HTTPException, BackgroundTasks
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from pydantic import BaseModel

from ...database import get_db
from ...models.epg import EpgSource
from ...core.epg_manager import refresh_epg
from ..auth import get_current_admin

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


class EpgSourceCreate(BaseModel):
    name: str
    url: str


class EpgSourceOut(BaseModel):
    id: int
    name: str
    url: str
    is_active: bool
    last_fetched_at: str | None = None

    class Config:
        from_attributes = True


@router.get("/", response_model=list[EpgSourceOut])
async def list_epg_sources(db: AsyncSession = Depends(get_db), _=Depends(get_current_admin)):
    result = await db.execute(select(EpgSource).order_by(EpgSource.id))
    return result.scalars().all()


@router.post("/", response_model=EpgSourceOut)
async def create_epg_source(data: EpgSourceCreate, db: AsyncSession = Depends(get_db), _=Depends(get_current_admin)):
    source = EpgSource(**data.model_dump())
    db.add(source)
    await db.commit()
    await db.refresh(source)
    return source


@router.delete("/{source_id}")
async def delete_epg_source(source_id: int, db: AsyncSession = Depends(get_db), _=Depends(get_current_admin)):
    result = await db.execute(select(EpgSource).where(EpgSource.id == source_id))
    source = result.scalar_one_or_none()
    if not source:
        raise HTTPException(404, "EPG source not found")
    await db.delete(source)
    await db.commit()
    return {"ok": True}


@router.post("/refresh")
async def trigger_refresh(background_tasks: BackgroundTasks, db: AsyncSession = Depends(get_db), _=Depends(get_current_admin)):
    background_tasks.add_task(refresh_epg, db)
    return {"ok": True, "message": "EPG refresh started in background"}