import os
from typing import Optional
from uuid import UUID
from fastapi import APIRouter, Depends, HTTPException, Query
from sqlalchemy.orm import Session
from app.database import get_db
from app.models.schemas import VideoSchema, VideoListResponse, RegisterRequest
from app.services.video_register import VideoRegisterService

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


@router.post("", response_model=VideoSchema)
def register_video(request: RegisterRequest, db: Session = Depends(get_db)):
    if not os.path.exists(request.probe_json_path):
        raise HTTPException(status_code=404, detail="Probe JSON file not found")

    if not os.path.exists(request.absolute_file_path):
        raise HTTPException(status_code=404, detail="Video file not found")

    service = VideoRegisterService(db)
    video = service.register_video(request.probe_json_path, request.absolute_file_path)

    return video


@router.get("/{video_id}", response_model=VideoSchema)
def get_video(video_id: UUID, db: Session = Depends(get_db)):
    service = VideoRegisterService(db)
    video = service.get_video_by_id(video_id)

    if not video:
        raise HTTPException(status_code=404, detail="Video not found")

    return video


@router.get("", response_model=VideoListResponse)
def search_videos(
    title: Optional[str] = Query(None, description="Search by title"),
    artist: Optional[str] = Query(None, description="Search by artist"),
    codec_name: Optional[str] = Query(None, description="Search by video codec"),
    min_width: Optional[int] = Query(None, description="Minimum video width"),
    max_width: Optional[int] = Query(None, description="Maximum video width"),
    min_height: Optional[int] = Query(None, description="Minimum video height"),
    max_height: Optional[int] = Query(None, description="Maximum video height"),
    format_name: Optional[str] = Query(None, description="Search by format name"),
    skip: int = Query(0, ge=0),
    limit: int = Query(20, ge=1, le=100),
    db: Session = Depends(get_db),
):
    service = VideoRegisterService(db)
    total, videos = service.search_videos(
        title=title,
        artist=artist,
        codec_name=codec_name,
        min_width=min_width,
        max_width=max_width,
        min_height=min_height,
        max_height=max_height,
        format_name=format_name,
        skip=skip,
        limit=limit,
    )

    return {"total": total, "videos": videos}