#!/usr/bin/env python3
"""
DeepCode - AI Research Engine Launcher

🧬 Next-Generation AI Research Automation Platform
⚡ Transform research papers into working code automatically
"""

import os
import sys
import subprocess
from pathlib import Path


def check_dependencies():
    """Check if necessary dependencies are installed"""
    import importlib.util

    print("🔍 Checking dependencies...")

    missing_deps = []
    missing_system_deps = []

    # Check Streamlit availability
    if importlib.util.find_spec("streamlit") is not None:
        print("✅ Streamlit is installed")
    else:
        missing_deps.append("streamlit>=1.28.0")

    # Check PyYAML availability
    if importlib.util.find_spec("yaml") is not None:
        print("✅ PyYAML is installed")
    else:
        missing_deps.append("pyyaml")

    # Check asyncio availability
    if importlib.util.find_spec("asyncio") is not None:
        print("✅ Asyncio is available")
    else:
        missing_deps.append("asyncio")

    # Check PDF conversion dependencies
    if importlib.util.find_spec("reportlab") is not None:
        print("✅ ReportLab is installed (for text-to-PDF conversion)")
    else:
        missing_deps.append("reportlab")
        print("⚠️  ReportLab not found (text files won't convert to PDF)")

    # Check LibreOffice for Office document conversion
    try:
        import subprocess
        import platform

        subprocess_kwargs = {
            "capture_output": True,
            "text": True,
            "timeout": 5,
        }

        if platform.system() == "Windows":
            subprocess_kwargs["creationflags"] = 0x08000000  # Hide console window

        # Try different LibreOffice commands
        libreoffice_found = False
        for cmd in ["libreoffice", "soffice"]:
            try:
                result = subprocess.run([cmd, "--version"], **subprocess_kwargs)
                if result.returncode == 0:
                    print(
                        "✅ LibreOffice is installed (for Office document conversion)"
                    )
                    libreoffice_found = True
                    break
            except (
                subprocess.CalledProcessError,
                FileNotFoundError,
                subprocess.TimeoutExpired,
            ):
                continue

        if not libreoffice_found:
            missing_system_deps.append("LibreOffice")
            print("⚠️  LibreOffice not found (Office documents won't convert to PDF)")

    except Exception:
        missing_system_deps.append("LibreOffice")
        print("⚠️  Could not check LibreOffice installation")

    # Display missing dependencies
    if missing_deps or missing_system_deps:
        print("\n📋 Dependency Status:")

        if missing_deps:
            print("❌ Missing Python dependencies:")
            for dep in missing_deps:
                print(f"   - {dep}")
            print(f"\nInstall with: pip install {' '.join(missing_deps)}")

        if missing_system_deps:
            print("\n⚠️  Missing system dependencies (optional for full functionality):")
            for dep in missing_system_deps:
                print(f"   - {dep}")
            print("\nInstall LibreOffice:")
            print("   - Windows: Download from https://www.libreoffice.org/")
            print("   - macOS: brew install --cask libreoffice")
            print("   - Ubuntu/Debian: sudo apt-get install libreoffice")

        # Only fail if critical Python dependencies are missing
        if missing_deps:
            return False
        else:
            print("\n✅ Core dependencies satisfied (optional dependencies missing)")
    else:
        print("✅ All dependencies satisfied")

    return True


def cleanup_cache():
    """Clean up Python cache files"""
    try:
        print("🧹 Cleaning up cache files...")
        # Clean up __pycache__ directories
        os.system('find . -type d -name "__pycache__" -exec rm -r {} + 2>/dev/null')
        # Clean up .pyc files
        os.system('find . -name "*.pyc" -delete 2>/dev/null')
        print("✅ Cache cleanup completed")
    except Exception as e:
        print(f"⚠️  Cache cleanup failed: {e}")


def print_banner():
    """Display startup banner"""
    banner = """
╔══════════════════════════════════════════════════════════════╗
║                                                              ║
║    🧬 DeepCode - AI Research Engine                          ║
║                                                              ║
║    ⚡ NEURAL • AUTONOMOUS • REVOLUTIONARY ⚡                ║
║                                                              ║
║    Transform research papers into working code               ║
║    Next-generation AI automation platform                   ║
║                                                              ║
╚══════════════════════════════════════════════════════════════╝
"""
    print(banner)


def main():
    """Main function"""
    print_banner()

    # Check dependencies
    if not check_dependencies():
        print("\n🚨 Please install missing dependencies and try again.")
        sys.exit(1)

    # Get current script directory
    current_dir = Path(__file__).parent
    streamlit_app_path = current_dir / "ui" / "streamlit_app.py"

    # Check if streamlit_app.py exists
    if not streamlit_app_path.exists():
        print(f"❌ UI application file not found: {streamlit_app_path}")
        print("Please ensure the ui/streamlit_app.py file exists.")
        sys.exit(1)

    print(f"\n📁 UI App location: {streamlit_app_path}")
    print("🌐 Starting DeepCode web interface...")
    print("🚀 Launching on http://localhost:8501")
    print("=" * 70)
    print("💡 Tip: Keep this terminal open while using the application")
    print("🛑 Press Ctrl+C to stop the server")
    print("=" * 70)

    # Launch Streamlit application
    try:
        cmd = [
            sys.executable,
            "-m",
            "streamlit",
            "run",
            str(streamlit_app_path),
            "--server.port",
            "8501",
            "--server.address",
            "localhost",
            "--browser.gatherUsageStats",
            "false",
            "--theme.base",
            "dark",
            "--theme.primaryColor",
            "#3b82f6",
            "--theme.backgroundColor",
            "#0f1419",
            "--theme.secondaryBackgroundColor",
            "#1e293b",
        ]

        subprocess.run(cmd, check=True)

    except subprocess.CalledProcessError as e:
        print(f"\n❌ Failed to start DeepCode: {e}")
        print("Please check if Streamlit is properly installed.")
        sys.exit(1)
    except KeyboardInterrupt:
        print("\n\n🛑 DeepCode server stopped by user")
        print("Thank you for using DeepCode! 🧬")
    except Exception as e:
        print(f"\n❌ Unexpected error: {e}")
        print("Please check your Python environment and try again.")
        sys.exit(1)
    finally:
        # Clean up cache files
        cleanup_cache()


if __name__ == "__main__":
    main()