import fs from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';

// Replicate __dirname behavior for ES modules
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const i18nDir = path.join(__dirname, '../i18n');
const outputDir = path.join(__dirname, '../src');
const outputFile = path.join(outputDir, 'translations.ts');

const allTranslations = {};

try {
    // Ensure output directory exists
    if (!fs.existsSync(outputDir)) {
        fs.mkdirSync(outputDir, { recursive: true });
    }

    const files = fs.readdirSync(i18nDir);

    files.forEach(file => {
        if (path.extname(file) === '.json') {
            const lang = path.basename(file, '.json');
            const filePath = path.join(i18nDir, file);
            const content = fs.readFileSync(filePath, 'utf8');
            try {
                allTranslations[lang] = JSON.parse(content);
                console.log(`Successfully processed ${file}`);
            } catch (parseError) {
                console.error(`Error parsing JSON from ${file}:`, parseError);
            }
        }
    });

    const tsContent = `// Auto-generated by scripts/translations.js
// Do not edit this file manually.
// All changes will be overwritten.

export const translations: Record<string, { [key: string]: string }> = ${JSON.stringify(allTranslations, null, 2)};
`;

    fs.writeFileSync(outputFile, tsContent, 'utf8');
    console.log(`\nSuccessfully generated TypeScript translations file at ${outputFile}`);
    console.log('Included languages:', Object.keys(allTranslations).join(', '));

} catch (error) {
    console.error('Error generating translations file:', error);
    process.exit(1);
}