"""
Video API endpoints
"""

import logging
from typing import List, Optional
from datetime import datetime

from fastapi import APIRouter, Depends, HTTPException, Query, status
from pydantic import BaseModel
from sqlalchemy.orm import Session

from ..core.database import get_db
from ..models.video import VideoRecord, VideoStatus
from ..services.video_service import VideoService

logger = logging.getLogger(__name__)

router = APIRouter()


# Pydantic models for API requests/responses
class VideoResponse(BaseModel):
    """Video response model"""
    id: str
    playlist_id: str
    video_url: str
    video_id: str
    title: Optional[str]
    playlist_index: Optional[int]
    upload_date: Optional[datetime]
    status: str
    download_requested_at: Optional[datetime]
    download_completed_at: Optional[datetime]
    metube_download_id: Optional[str]
    original_filename: Optional[str]
    file_moved: bool
    file_location_note: Optional[str]
    error_message: Optional[str]
    retry_count: int
    last_error_at: Optional[datetime]
    created_at: datetime
    updated_at: datetime
    
    class Config:
        from_attributes = True


class VideoActionResponse(BaseModel):
    """Response for video actions"""
    status: str
    message: str
    video: Optional[VideoResponse] = None


@router.get("/{video_id}", response_model=VideoResponse)
async def get_video(
    video_id: str,
    db: Session = Depends(get_db)
):
    """Get a specific video record"""
    try:
        service = VideoService(db)
        video = service.get_video(video_id)
        
        if not video:
            raise HTTPException(status_code=404, detail="Video not found")
        
        return video
    except HTTPException:
        raise
    except Exception as e:
        logger.error(f"Error getting video {video_id}: {e}")
        raise HTTPException(status_code=500, detail=f"Error getting video: {str(e)}")


@router.post("/{video_id}/download", response_model=VideoActionResponse)
async def trigger_video_download(
    video_id: str,
    db: Session = Depends(get_db)
):
    """Manually trigger download for a video"""
    try:
        service = VideoService(db)
        
        # Get video
        video = service.get_video(video_id)
        if not video:
            raise HTTPException(status_code=404, detail="Video not found")
        
        # Trigger download
        result = await service.download_video(video_id)
        
        return VideoActionResponse(
            status="ok",
            message="Download triggered successfully",
            video=result
        )
        
    except HTTPException:
        raise
    except ValueError as e:
        logger.warning(f"Cannot download video {video_id}: {e}")
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        logger.error(f"Error downloading video {video_id}: {e}")
        raise HTTPException(status_code=500, detail=f"Error downloading video: {str(e)}")


@router.post("/{video_id}/file-moved", response_model=VideoActionResponse)
async def mark_file_as_moved(
    video_id: str,
    location_note: Optional[str] = Query(None, description="Optional note about new file location"),
    db: Session = Depends(get_db)
):
    """Mark a video file as moved by the user"""
    try:
        service = VideoService(db)
        
        # Get video
        video = service.get_video(video_id)
        if not video:
            raise HTTPException(status_code=404, detail="Video not found")
        
        # Mark as moved
        updated_video = service.mark_file_as_moved(video_id, location_note)
        
        return VideoActionResponse(
            status="ok",
            message="File marked as moved successfully",
            video=updated_video
        )
        
    except HTTPException:
        raise
    except ValueError as e:
        logger.warning(f"Cannot mark file as moved for video {video_id}: {e}")
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        logger.error(f"Error marking file as moved for video {video_id}: {e}")
        raise HTTPException(status_code=500, detail=f"Error marking file as moved: {str(e)}")


@router.post("/{video_id}/skip", response_model=VideoActionResponse)
async def skip_video(
    video_id: str,
    db: Session = Depends(get_db)
):
    """Mark a video as skipped (won't be downloaded)"""
    try:
        service = VideoService(db)
        
        # Get video
        video = service.get_video(video_id)
        if not video:
            raise HTTPException(status_code=404, detail="Video not found")
        
        # Skip video
        updated_video = service.skip_video(video_id)
        
        return VideoActionResponse(
            status="ok",
            message="Video marked as skipped",
            video=updated_video
        )
        
    except HTTPException:
        raise
    except ValueError as e:
        logger.warning(f"Cannot skip video {video_id}: {e}")
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        logger.error(f"Error skipping video {video_id}: {e}")
        raise HTTPException(status_code=500, detail=f"Error skipping video: {str(e)}")


@router.post("/{video_id}/reset", response_model=VideoActionResponse)
async def reset_video(
    video_id: str,
    db: Session = Depends(get_db)
):
    """Reset a video to pending status (allow re-download)"""
    try:
        service = VideoService(db)
        
        # Get video
        video = service.get_video(video_id)
        if not video:
            raise HTTPException(status_code=404, detail="Video not found")
        
        # Reset video
        updated_video = service.reset_video(video_id)
        
        return VideoActionResponse(
            status="ok",
            message="Video reset to pending status",
            video=updated_video
        )
        
    except HTTPException:
        raise
    except ValueError as e:
        logger.warning(f"Cannot reset video {video_id}: {e}")
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        logger.error(f"Error resetting video {video_id}: {e}")
        raise HTTPException(status_code=500, detail=f"Error resetting video: {str(e)}")