#!/usr/bin/env python3
"""
Simple build script for static site generation.
Replaces template variables with values from config/services.json
"""

import json
import os
from datetime import datetime
from pathlib import Path

# Paths
BASE_DIR = Path(__file__).parent
TEMPLATE_DIR = BASE_DIR / "src"
CONFIG_FILE = BASE_DIR / "config" / "services.json"
OUTPUT_DIR = BASE_DIR / "dist"

def load_config():
    """Load configuration from JSON file"""
    with open(CONFIG_FILE, 'r') as f:
        return json.load(f)

def generate_services_html(services):
    """Generate HTML for services list"""
    html = ""
    for service in services:
        # Handle URLs that may or may not have protocol
        url = service['url']
        if not url.startswith(('http://', 'https://')):
            href = f"https://{url}"
        else:
            href = url
            # Display URL without protocol for cleaner look
            url = url.replace('https://', '').replace('http://', '')
        
        html += f"""
                    <div class="service-card">
                        <div class="service-name">{service['name']}</div>
                        <div class="service-description">{service['description']}</div>
                        <div class="service-info">
                            <strong>URL:</strong> <a href="{href}" class="service-link" target="_blank">{url}</a>
                        </div>
                    </div>
        """
    return html.strip()

def build_site():
    """Main build function"""
    # Load config
    config = load_config()
    
    # Read template
    template_path = TEMPLATE_DIR / "index.html.template"
    with open(template_path, 'r') as f:
        template = f.read()
    
    # Generate services HTML
    services_html = generate_services_html(config['services'])
    
    # Prepare replacements
    replacements = {
        '{{SITE_TITLE}}': config['site']['title'],
        '{{SITE_SUBTITLE}}': config['site']['subtitle'],
        '{{SITE_DESCRIPTION}}': config['site']['description'],
        '{{SERVICES_LIST}}': services_html,
        '{{FOOTER_TEXT}}': config['footer']['text'],
        '{{BUILD_TIMESTAMP}}': datetime.now().strftime('%Y-%m-%d %H:%M:%S UTC')
    }
    
    # Replace variables
    output = template
    for placeholder, value in replacements.items():
        output = output.replace(placeholder, value)
    
    # Create output directory
    OUTPUT_DIR.mkdir(exist_ok=True)
    
    # Write output
    output_path = OUTPUT_DIR / "index.html"
    with open(output_path, 'w') as f:
        f.write(output)
    
    # Copy CSS file
    css_source = TEMPLATE_DIR / "styles.css"
    css_dest = OUTPUT_DIR / "styles.css"
    if css_source.exists():
        with open(css_source, 'r') as src, open(css_dest, 'w') as dst:
            dst.write(src.read())
    
    print(f"✓ Site built successfully!")
    print(f"✓ Output: {output_path}")
    print(f"✓ CSS copied to: {css_dest}")

if __name__ == "__main__":
    build_site()