/**
 * Construir paquete SCORM (ZIP)
 */

import { readFile, readdir, stat } from 'fs/promises';
import { join, relative } from 'path';
import JSZip from 'jszip';
import { Guide } from '../../src/data/guides-index.js';

/**
 * Construir paquete ZIP SCORM
 */
export async function buildScormPackage(
    guide: Guide,
    packageDir: string,
    outputPath: string
): Promise<void> {
    const zip = new JSZip();
    
    // Leer todos los archivos del paquete
    await addDirectoryToZip(zip, packageDir, '');
    
    // Generar ZIP
    const buffer = await zip.generateAsync({
        type: 'nodebuffer',
        compression: 'DEFLATE',
        compressionOptions: { level: 9 }
    });
    
    // Guardar ZIP
    const fs = await import('fs/promises');
    await fs.writeFile(outputPath, buffer);
}

/**
 * Añadir directorio recursivamente al ZIP
 */
async function addDirectoryToZip(
    zip: JSZip,
    dirPath: string,
    zipPath: string
): Promise<void> {
    const entries = await readdir(dirPath, { withFileTypes: true });
    
    for (const entry of entries) {
        const fullPath = join(dirPath, entry.name);
        const relativePath = zipPath ? `${zipPath}/${entry.name}` : entry.name;
        
        if (entry.isDirectory()) {
            await addDirectoryToZip(zip, fullPath, relativePath);
        } else {
            const content = await readFile(fullPath);
            zip.file(relativePath, content);
        }
    }
}