const fs = require('fs');
const path = require('path');
const archiver = require('archiver');

// Path to the theme's style.css
const styleCssPath = path.join(__dirname, 'style.css');

// Directories to exclude
const excludedDirs = [
    'node_modules', 
    'src', 
    '.gitignore', 
    'package.json', 
    'package-lock.json',
    'theme.zip',
    '.git',
    'react',
    'zip-theme.js'
];

// Helper function to check if a file or directory should be excluded
const shouldExclude = (filePath) => {
    return excludedDirs.some(exclude => filePath.includes(exclude));
};

// Read the style.css file and extract the theme name
fs.readFile(styleCssPath, 'utf8', (err, data) => {
    if (err) {
        console.error('Error reading style.css:', err);
        return;
    }

    // Regex to match the theme name in the header
    const themeNameMatch = data.match(/\/\*[\s\S]*?Theme Name:\s*(.*?)\s*\*\//);

    // Fallback to 'theme' if no theme name is found
    const themeName = themeNameMatch && themeNameMatch[1] ? themeNameMatch[1].trim() : 'theme';

    // Sanitize the theme name (remove spaces and convert to lowercase)
    const sanitizedThemeName = themeName.replace(/\s+/g, '').toLowerCase();

    // Define the output zip file path using the sanitized theme name
    const output = fs.createWriteStream(path.join(__dirname, `${sanitizedThemeName}.zip`));

    // Create an archiver instance
    const archive = archiver('zip', {
        zlib: { level: 9 } // Compression level
    });

    // Pipe the archive to the output file
    archive.pipe(output);

    // Recursively append all files in the theme directory except excluded ones
    const addFilesRecursively = (directory) => {
        const files = fs.readdirSync(directory);

        files.forEach((file) => {
            const filePath = path.join(directory, file);

            // Exclude the file or directory if it matches the exclusion criteria
            if (shouldExclude(filePath)) {
                console.log(`Excluding: ${filePath}`);
                return; // Skip this file/directory
            }

            const stat = fs.statSync(filePath);

            if (stat.isDirectory()) {
                // If it's a directory, recurse into it
                addFilesRecursively(filePath);
            } else {
                // If it's a file, add it to the archive
                archive.file(filePath, { name: path.relative(__dirname, filePath) });
            }
        });
    };

    // Start adding files from the theme directory
    addFilesRecursively(__dirname);

    // Finalize the archive
    archive.finalize();

    output.on('close', () => {
        console.log(`Theme has been zipped into ${sanitizedThemeName}.zip`);
    });

    output.on('error', (err) => {
        console.error('Error creating zip file:', err);
    });
});