#!/usr/bin/env python3
"""

Simple HTML to PDF Generation using Chrome headless
Renders HTML file to PDF without TOC or page analysis
"""

import os
import sys
import subprocess
import platform
from pathlib import Path

def find_chrome_executable():
    """Find Chrome/Chromium executable based on platform"""
    system = platform.system()

    if system == "Windows":
        # Common Chrome paths on Windows
        chrome_paths = [
            r"C:\Program Files\Google\Chrome\Application\chrome.exe",
            r"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",
            r"C:\Users\{}\AppData\Local\Google\Chrome\Application\chrome.exe".format(os.getenv('USERNAME')),
        ]

        for path in chrome_paths:
            if os.path.exists(path):
                return path

        # Try to find from registry or PATH
        try:
            result = subprocess.run(['where', 'chrome'], capture_output=True, text=True)
            if result.returncode == 0:
                return result.stdout.strip().split('\n')[0]
        except:
            pass

    elif system == "Darwin":  # macOS
        chrome_paths = [
            "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome",
            "/Applications/Chromium.app/Contents/MacOS/Chromium"
        ]

        for path in chrome_paths:
            if os.path.exists(path):
                return path

    else:  # Linux
        chrome_paths = [
            "google-chrome",
            "chromium-browser",
            "chromium",
            "/usr/bin/google-chrome",
            "/usr/bin/chromium-browser"
        ]

        for path in chrome_paths:
            try:
                result = subprocess.run(['which', path], capture_output=True)
                if result.returncode == 0:
                    return path
            except:
                continue

    return None

def generate_pdf_chrome(html_path, output_path, chrome_path):
    """Generate PDF using Chrome headless"""
    try:
        # Convert to absolute paths
        html_path = Path(html_path).resolve()
        output_path = Path(output_path).resolve()

        # Chrome headless command
        cmd = [
            chrome_path,
            "--headless",
            "--disable-gpu",
            "--no-pdf-header-footer",  # Remove Chrome's default headers
            f"--print-to-pdf={output_path}",
            f"--print-to-pdf-no-header",
            f"file://{html_path}"
        ]

        print(f"🔄 Running Chrome headless...")
        print(f"   Input: {html_path}")
        print(f"   Output: {output_path}")

        # Run Chrome
        result = subprocess.run(cmd, capture_output=True, text=True)

        if result.returncode == 0:
            print(f"✅ PDF generated successfully!")
            print(f"   Location: {output_path}")
            return True
        else:
            print(f"❌ Chrome error: {result.stderr}")
            return False

    except Exception as e:
        print(f"❌ Error: {e}")
        return False

def main():
    """Main function"""
    # Get script directory
    script_dir = Path(__file__).parent
    energie360_dir = script_dir / 'energie360'
    
    # File paths
    html_file = energie360_dir / 'energie360-offerte.html'
    output_pdf = energie360_dir / 'energie360-offerte.pdf'
    
    # Check if HTML file exists
    if not html_file.exists():
        print(f"❌ HTML file not found: {html_file}")
        return False
    
    print("🚀 HTML to PDF Generation")
    print("=" * 30)
    
    # Try to find Chrome
    chrome_path = find_chrome_executable()
    
    if chrome_path:
        print(f"✅ Chrome found: {chrome_path}")
        
        # Generate PDF
        print("\n🔄 Generating PDF...")
        success = generate_pdf_chrome(html_file, output_pdf, chrome_path)
        
        if success:
            print(f"\n🎉 PDF generated successfully!")
            print(f"📄 Output: {output_pdf}")
            return True
        else:
            print("\n❌ PDF generation failed")
            return False
    
    else:
        print("⚠️ Chrome not found, cannot generate PDF")
        return False

if __name__ == "__main__":
    success = main()
    sys.exit(0 if success else 1)