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

function unflatten(data) {
    const result = {};

    // Sort keys so that base objects are created before properties are added
    const keys = Object.keys(data);

    for (const key of keys) {
        const value = data[key];

        // If it's already an object, merge its keys
        if (typeof value === 'object' && value !== null && !Array.isArray(value)) {
            if (!result[key] || typeof result[key] !== 'object') {
                result[key] = result[key] || {};
            }
            Object.assign(result[key], value);
        } else {
            // Split by dot and nest
            const parts = key.split('.');
            let current = result;

            for (let i = 0; i < parts.length - 1; i++) {
                const part = parts[i];
                if (!current[part] || typeof current[part] !== 'object') {
                    current[part] = {};
                }
                current = current[part];
            }
            current[parts[parts.length - 1]] = value;
        }
    }

    return result;
}

const dir = path.join(__dirname, 'locale');
const files = fs.readdirSync(dir).filter(f => f.endsWith('.json'));

files.forEach(file => {
    const filePath = path.join(dir, file);
    let content = fs.readFileSync(filePath, 'utf8');
    let data;
    try {
        data = JSON.parse(content);
    } catch (e) {
        console.log(`Error parsing ${file}`);
        return;
    }

    const nestedData = unflatten(data);
    fs.writeFileSync(filePath, JSON.stringify(nestedData, null, 2), 'utf8');
    console.log(`Updated ${file}`);
});