#!/usr/bin/env python3
"""
Startup Script for SyncMaster
نقطة دخول موحدة تضمن تشغيل جميع المكونات المطلوبة
"""

import os
import sys
import time
import logging
import subprocess
import signal
import atexit
from pathlib import Path

# Configure logging
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(levelname)s - %(message)s'
)

class SyncMasterLauncher:
    def __init__(self):
        self.recorder_process = None
        self.streamlit_process = None
        self.cleanup_registered = False
        
    def setup_cleanup(self):
        """Setup cleanup handlers"""
        if not self.cleanup_registered:
            atexit.register(self.cleanup)
            signal.signal(signal.SIGINT, self.signal_handler)
            signal.signal(signal.SIGTERM, self.signal_handler)
            self.cleanup_registered = True
    
    def signal_handler(self, signum, frame):
        """Handle termination signals"""
        logging.info(f"Received signal {signum}, cleaning up...")
        self.cleanup()
        sys.exit(0)
    
    def cleanup(self):
        """Clean up all processes"""
        logging.info("🧹 Cleaning up processes...")
        
        if self.recorder_process and self.recorder_process.poll() is None:
            try:
                self.recorder_process.terminate()
                self.recorder_process.wait(timeout=5)
                logging.info("✅ Recorder server terminated")
            except:
                try:
                    self.recorder_process.kill()
                    logging.info("⚠️ Recorder server killed")
                except:
                    pass
        
        if self.streamlit_process and self.streamlit_process.poll() is None:
            try:
                self.streamlit_process.terminate()
                self.streamlit_process.wait(timeout=5)
                logging.info("✅ Streamlit server terminated")
            except:
                try:
                    self.streamlit_process.kill()
                    logging.info("⚠️ Streamlit server killed")
                except:
                    pass
    
    def start_recorder_server(self):
        """Start the recorder server"""
        try:
            logging.info("🚀 Starting recorder server...")
            self.recorder_process = subprocess.Popen(
                [sys.executable, 'recorder_server.py'],
                stdout=subprocess.PIPE,
                stderr=subprocess.PIPE
            )
            
            # Wait for server to start
            time.sleep(3)
            
            # Check if process is running
            if self.recorder_process.poll() is None:
                # Verify server is responding
                try:
                    import requests
                    response = requests.get('http://localhost:5001/record', timeout=5)
                    if response.status_code == 200:
                        logging.info("✅ Recorder server started successfully on port 5001")
                        return True
                    else:
                        logging.warning(f"⚠️ Recorder server responded with status: {response.status_code}")
                except Exception as e:
                    logging.warning(f"⚠️ Could not verify recorder server: {e}")
                
                # Server process is running even if verification failed
                return True
            else:
                logging.error("❌ Recorder server process failed to start")
                return False
                
        except Exception as e:
            logging.error(f"❌ Failed to start recorder server: {e}")
            return False
    
    def start_streamlit_app(self, port=5050, host="0.0.0.0"):
        """Start the Streamlit application"""
        try:
            logging.info(f"🚀 Starting Streamlit app on {host}:{port}...")
            
            cmd = [
                sys.executable, '-m', 'streamlit', 'run', 'app.py',
                '--server.port', str(port),
                '--server.address', host,
                '--server.headless', 'true',
                '--browser.gatherUsageStats', 'false'
            ]
            
            self.streamlit_process = subprocess.Popen(cmd)
            
            # Wait a bit for Streamlit to start
            time.sleep(5)
            
            if self.streamlit_process.poll() is None:
                logging.info(f"✅ Streamlit app started successfully on http://{host}:{port}")
                return True
            else:
                logging.error("❌ Streamlit app failed to start")
                return False
                
        except Exception as e:
            logging.error(f"❌ Failed to start Streamlit app: {e}")
            return False
    
    def launch_integrated(self):
        """Launch with integrated server (recommended for HuggingFace)"""
        logging.info("🚀 Launching SyncMaster with integrated server...")
        self.setup_cleanup()
        
        # Start Streamlit with integrated server
        try:
            # Import to trigger integrated server startup
            import app
            
            # Run Streamlit
            import streamlit.web.cli as stcli
            import sys
            
            # Set command line arguments for Streamlit
            sys.argv = [
                "streamlit", "run", "app.py",
                "--server.port", "5050",
                "--server.address", "0.0.0.0",
                "--server.headless", "true",
                "--browser.gatherUsageStats", "false"
            ]
            
            # Run Streamlit CLI
            stcli.main()
            
        except Exception as e:
            logging.error(f"❌ Failed to launch integrated mode: {e}")
            return False
    
    def launch_separate(self):
        """Launch with separate processes (development mode)"""
        logging.info("🚀 Launching SyncMaster with separate processes...")
        self.setup_cleanup()
        
        # Start recorder server first
        if not self.start_recorder_server():
            logging.error("❌ Failed to start recorder server, aborting...")
            return False
        
        # Start Streamlit app
        if not self.start_streamlit_app():
            logging.error("❌ Failed to start Streamlit app, aborting...")
            self.cleanup()
            return False
        
        logging.info("✅ All services started successfully!")
        logging.info("🌐 Access the application at: http://localhost:5050")
        logging.info("🎙️ Recorder API available at: http://localhost:5001")
        
        try:
            # Keep the main process alive
            while True:
                time.sleep(1)
                
                # Check if processes are still running
                if self.recorder_process and self.recorder_process.poll() is not None:
                    logging.error("❌ Recorder server process died")
                    break
                
                if self.streamlit_process and self.streamlit_process.poll() is not None:
                    logging.error("❌ Streamlit app process died")
                    break
                    
        except KeyboardInterrupt:
            logging.info("👋 Shutting down...")
        finally:
            self.cleanup()

def main():
    """Main entry point"""
    launcher = SyncMasterLauncher()
    
    # Check if running in HuggingFace or similar environment
    if os.getenv('SPACE_ID') or '--integrated' in sys.argv:
        # Use integrated mode for cloud deployments
        launcher.launch_integrated()
    else:
        # Use separate processes for local development
        launcher.launch_separate()

if __name__ == "__main__":
    main()