#!/usr/bin/env python3
"""
Simple HTTP server for serving the SeReact frontend during development.
"""

import http.server
import socketserver
import webbrowser
import os
import sys
from pathlib import Path

# Configuration
PORT = 8080
HOST = 'localhost'

class CustomHTTPRequestHandler(http.server.SimpleHTTPRequestHandler):
    """Custom handler to serve index.html for SPA routing"""
    
    def end_headers(self):
        # Add CORS headers for development
        self.send_header('Access-Control-Allow-Origin', '*')
        self.send_header('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS')
        self.send_header('Access-Control-Allow-Headers', 'Content-Type, Authorization, X-API-Key')
        super().end_headers()
    
    def do_OPTIONS(self):
        # Handle preflight requests
        self.send_response(200)
        self.end_headers()

def main():
    # Change to the directory containing this script
    script_dir = Path(__file__).parent
    os.chdir(script_dir)
    
    # Check if index.html exists
    if not Path('index.html').exists():
        print("Error: index.html not found in current directory")
        print(f"Current directory: {os.getcwd()}")
        sys.exit(1)
    
    # Create server
    with socketserver.TCPServer((HOST, PORT), CustomHTTPRequestHandler) as httpd:
        server_url = f"http://{HOST}:{PORT}"
        
        print(f"🚀 SeReact Frontend Development Server")
        print(f"📁 Serving files from: {os.getcwd()}")
        print(f"🌐 Server running at: {server_url}")
        print(f"📱 Open in browser: {server_url}")
        print(f"⏹️  Press Ctrl+C to stop the server")
        print()
        
        # Try to open browser automatically
        try:
            webbrowser.open(server_url)
            print("✅ Browser opened automatically")
        except Exception as e:
            print(f"⚠️  Could not open browser automatically: {e}")
        
        print()
        print("🔧 Development Tips:")
        print("   - Edit files and refresh browser to see changes")
        print("   - Check browser console (F12) for errors")
        print("   - Configure API settings in the app")
        print()
        
        try:
            httpd.serve_forever()
        except KeyboardInterrupt:
            print("\n🛑 Server stopped by user")
            print("👋 Thanks for using SeReact!")

if __name__ == "__main__":
    main()