from fastapi import APIRouter, Depends, Form, HTTPException, Request
from fastapi.responses import RedirectResponse
from fastapi.templating import Jinja2Templates

from app.db import get_db
from app.security.deps import require_auth
from app.services import playlist_service, status_service

router = APIRouter(prefix="/playlists", tags=["playlists"])
templates = Jinja2Templates(directory="app/templates")


@router.get("")
async def playlists_index(request: Request, user: dict = Depends(require_auth), db=Depends(get_db)):
    playlists = playlist_service.list_all(db)
    sync_times = {p.id: playlist_service.cron_to_time(p.cron_expr) for p in playlists}
    return templates.TemplateResponse(
        request, "playlists/index.html", {"playlists": playlists, "sync_times": sync_times}
    )


@router.post("")
async def create_playlist(
    name: str = Form(...),
    spotify_url: str = Form(...),
    sync_time: str = Form(""),
    no_m3u: bool = Form(False),
    user: dict = Depends(require_auth),
    db=Depends(get_db),
):
    playlist_service.create(
        db,
        name=name,
        spotify_url=spotify_url,
        cron_expr=playlist_service.time_to_cron(sync_time),
        no_m3u=no_m3u,
    )
    return RedirectResponse(url="/playlists", status_code=303)


@router.get("/{playlist_id}")
async def playlist_detail(
    request: Request, playlist_id: int, user: dict = Depends(require_auth), db=Depends(get_db)
):
    playlist = playlist_service.get(db, playlist_id)
    if playlist is None:
        raise HTTPException(404, "no such playlist")

    status = None
    error = None
    try:
        status = status_service.playlist_status(db, playlist.name, playlist.spotify_url)
    except Exception as exc:
        error = str(exc)

    return templates.TemplateResponse(
        request,
        "playlists/detail.html",
        {
            "playlist": playlist,
            "sync_time": playlist_service.cron_to_time(playlist.cron_expr),
            "status": status,
            "error": error,
        },
    )


@router.post("/{playlist_id}")
async def update_playlist(
    playlist_id: int,
    active: bool = Form(False),
    sync_time: str = Form(""),
    no_m3u: bool = Form(False),
    notes: str = Form(""),
    user: dict = Depends(require_auth),
    db=Depends(get_db),
):
    playlist_service.update(
        db,
        playlist_id,
        active=active,
        cron_expr=playlist_service.time_to_cron(sync_time),
        no_m3u=no_m3u,
        notes=notes or None,
    )
    return RedirectResponse(url=f"/playlists/{playlist_id}", status_code=303)


@router.post("/{playlist_id}/delete")
async def delete_playlist(playlist_id: int, user: dict = Depends(require_auth), db=Depends(get_db)):
    playlist_service.delete(db, playlist_id)
    return RedirectResponse(url="/playlists", status_code=303)