import os
import logging
import shutil
from redis import from_url
from ..config import RedisConfig
from rq import Queue
from pathlib import Path
from typing import Optional
from .ffmpeg import FFmpegEncoder
from ..config import EncodingConfig

logger = logging.getLogger(__name__)

q = Queue(connection=RedisConfig.get_connection(), default_timeout=3600)

def update_job_progress(job_id: str, progress: float):
    logger.info(f"Updating progress for job {job_id} to {progress}")
    RedisConfig.get_connection().hset(f"job:{job_id}", "progress", progress)

def encode_video_task(job_id: str, input_path: str) -> Optional[str]:
    try:
        logger.info(f"Starting encoding for job {job_id}")
        output_dir = os.path.join(EncodingConfig.TEMP_DIR, job_id)
        encoder = FFmpegEncoder(input_path, output_dir)

        update_job_progress(job_id, 0.1)
        master_playlist = encoder.encode()
        update_job_progress(job_id, 1.0)

        logger.info(f"Encoding completed for job {job_id}")
        return master_playlist
    except Exception as e:
        logger.error(f"Encoding failed for job {job_id}: {str(e)}")
        update_job_progress(job_id, -1.0)
        raise
    finally:
        # Cleanup temporary files after 1 hour
        shutil.rmtree(output_dir, ignore_errors=True)