import os
import json
import uuid
import logging
import stat

# Configure logging
logger = logging.getLogger(__name__)

# Create transcripts directory if it doesn't exist
TRANSCRIPTS_DIR = os.path.join(os.path.dirname(__file__), "transcripts")
os.makedirs(TRANSCRIPTS_DIR, exist_ok=True)
TRANSCRIPTS_FILE = os.path.join(TRANSCRIPTS_DIR, "podcasts.json")

# Ensure directory has correct permissions
try:
    os.chmod(TRANSCRIPTS_DIR, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)  # 0777 permissions
except Exception as e:
    logger.warning(f"Could not set permissions on transcripts directory: {e}")

# Initialize empty transcripts file if it doesn't exist
if not os.path.exists(TRANSCRIPTS_FILE):
    try:
        with open(TRANSCRIPTS_FILE, 'w') as f:
            json.dump([], f)
        os.chmod(TRANSCRIPTS_FILE, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)  # 0777 permissions
    except Exception as e:
        logger.warning(f"Could not initialize transcripts file: {e}")

def save_transcript(podcast_script: str, user_query: str) -> None:
    """Save podcast transcript to JSON file."""
    # Create new transcript entry
    transcript = {
        "id": str(uuid.uuid4()),
        "podcastScript": podcast_script,
        "topic": user_query
    }
    
    try:
        # Ensure directory exists with correct permissions
        os.makedirs(TRANSCRIPTS_DIR, exist_ok=True)
        os.chmod(TRANSCRIPTS_DIR, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
        
        # Load existing transcripts
        transcripts = []
        if os.path.exists(TRANSCRIPTS_FILE):
            try:
                with open(TRANSCRIPTS_FILE, 'r') as f:
                    transcripts = json.load(f)
                    if not isinstance(transcripts, list):
                        transcripts = []
            except (json.JSONDecodeError, PermissionError) as e:
                logger.warning(f"Error reading transcripts file: {e}, initializing empty list")
                transcripts = []
        
        # Append new transcript
        transcripts.append(transcript)
        
        # Save updated transcripts
        try:
            with open(TRANSCRIPTS_FILE, 'w') as f:
                json.dump(transcripts, f, indent=2)
            os.chmod(TRANSCRIPTS_FILE, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
            logger.info("Successfully saved transcript")
        except PermissionError:
            # Try creating a new file in case the original has wrong permissions
            temp_file = os.path.join(TRANSCRIPTS_DIR, f"podcasts_temp_{uuid.uuid4()}.json")
            with open(temp_file, 'w') as f:
                json.dump(transcripts, f, indent=2)
            os.chmod(temp_file, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
            os.replace(temp_file, TRANSCRIPTS_FILE)
            logger.info("Successfully saved transcript using temporary file")
            
    except Exception as e:
        logger.error(f"Error saving transcript: {str(e)}")
        # Try one last time with a new file
        try:
            temp_file = os.path.join(TRANSCRIPTS_DIR, f"podcasts_new_{uuid.uuid4()}.json")
            with open(temp_file, 'w') as f:
                json.dump([transcript], f, indent=2)
            os.chmod(temp_file, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
            logger.info("Saved single transcript to new file")
        except Exception as e2:
            logger.error(f"Final attempt to save transcript failed: {str(e2)}")
            raise