# main.py
"""
Main entry point for the music source separation application
"""

import os
import sys
import argparse
from pathlib import Path
from config import BASE_DIR

def setup_environment():
    """Setup the environment and install dependencies"""
    print("🔧 Setting up environment...")
    
    # Install requirements
    print("📦 Installing dependencies...")
    exit_code = os.system(f"{sys.executable} -m pip install -r requirements.txt")
    
    if exit_code != 0:
        print("❌ Failed to install dependencies")
        return False
    
    # Create necessary directories
    print("📁 Creating directory structure...")
    directories = [
        BASE_DIR / "audio_samples",
        BASE_DIR / "separated_audio", 
        BASE_DIR / "models",
        BASE_DIR / "logs",
        BASE_DIR / "examples"
    ]
    
    for directory in directories:
        directory.mkdir(exist_ok=True)
        print(f"✓ Created {directory}")
    
    # Download models
    print("🤖 Downloading pre-trained models...")
    try:
        from download_models import download_models
        if download_models():
            print("✅ Models downloaded successfully")
        else:
            print("❌ Model download failed")
            return False
    except Exception as e:
        print(f"❌ Error downloading models: {e}")
        return False
    
    print("✅ Environment setup complete!")
    return True

def run_application(host="0.0.0.0", port=7860, share=False):
    """Run the Gradio application"""
    print("🚀 Starting Music Source Separator application...")
    print(f"🌐 Access the interface at: http://{host}:{port}")
    
    try:
        import app
        app.demo.launch(
            server_name=host,
            server_port=port,
            share=share,
            show_error=True
        )
    except Exception as e:
        print(f"❌ Failed to start application: {e}")
        return False
    
    return True

def main():
    """Main entry point"""
    parser = argparse.ArgumentParser(description="Music Source Separator")
    parser.add_argument(
        "command", 
        nargs="?", 
        default="run",
        choices=["setup", "run"],
        help="Command to execute (setup: install dependencies, run: start app)"
    )
    parser.add_argument(
        "--host", 
        default="0.0.0.0",
        help="Host to run the server on"
    )
    parser.add_argument(
        "--port", 
        type=int, 
        default=7860,
        help="Port to run the server on"
    )
    parser.add_argument(
        "--share", 
        action="store_true",
        help="Create public share link"
    )
    
    args = parser.parse_args()
    
    if args.command == "setup":
        success = setup_environment()
        sys.exit(0 if success else 1)
    else:
        success = run_application(args.host, args.port, args.share)
        sys.exit(0 if success else 1)

if __name__ == "__main__":
    main()