#!/usr/bin/env python3
"""
Build GRAIL-Heart Network Explorer
Embeds JSON data directly into HTML for GitHub Pages deployment
"""

import json
import os
from pathlib import Path

def build_explorer():
    """Build the explorer with embedded data for static hosting."""
    
    base_dir = Path(__file__).parent.parent
    cytoscape_dir = base_dir / "outputs" / "cytoscape"
    data_dir = cytoscape_dir / "data"
    
    # Load all network data
    all_networks_path = data_dir / "all_networks.json"
    if not all_networks_path.exists():
        print("❌ Network data not found. Run generate_network_data.py first.")
        return False
    
    with open(all_networks_path, 'r') as f:
        network_data = json.load(f)
    
    print(f"Loaded network data: {len(network_data)} networks")
    
    # Read the HTML template
    html_path = cytoscape_dir / "grail_heart_explorer.html"
    with open(html_path, 'r', encoding='utf-8') as f:
        html_content = f.read()
    
    # Create embedded data version
    # Replace the dynamic loading with embedded data
    embedded_js = f"""    <script>
        // Network data - embedded for static hosting (GitHub Pages)
        // Generated by scripts/build_explorer.py
        const networkData = {json.dumps(network_data, separators=(',', ':'))};
        
        // No need to fetch - data is embedded
        async function loadNetworkData() {{
            console.log('Using embedded network data');
            return true;
        }}
        
        // Region descriptions
        const regionInfo = {{"""
    
    # Find and replace the data loading section
    import re
    
    # Pattern to match from <script> to const regionInfo = {
    pattern = r'    <script>\s*// Network data.*?// Region descriptions\s*const regionInfo = \{'
    
    replacement = embedded_js
    
    embedded_html = re.sub(pattern, replacement, html_content, flags=re.DOTALL)
    
    # Write the built version
    output_path = cytoscape_dir / "grail_heart_explorer_built.html"
    with open(output_path, 'w', encoding='utf-8') as f:
        f.write(embedded_html)
    
    print(f"Built explorer saved to: {output_path}")
    print(f"   File size: {output_path.stat().st_size / 1024:.1f} KB")
    
    # Also create a version that replaces the original for GitHub Pages
    # (keeping original for local development with fetch)
    gh_pages_path = cytoscape_dir / "index.html"
    with open(gh_pages_path, 'w', encoding='utf-8') as f:
        f.write(embedded_html)
    
    print(f"GitHub Pages version saved to: {gh_pages_path}")
    
    return True

if __name__ == "__main__":
    build_explorer()