#!/usr/bin/env node

const fs = require('fs');
const path = require('path');
const { execSync } = require('child_process');

function generateVersion() {
    const timestamp = Date.now();
    const date = new Date().toISOString();
    
    let gitHash = null;
    let gitBranch = null;
    
    try {
        gitHash = execSync('git rev-parse --short HEAD', { encoding: 'utf8' }).trim();
        gitBranch = execSync('git rev-parse --abbrev-ref HEAD', { encoding: 'utf8' }).trim();
    } catch (e) {
        console.warn('Warning: Could not get git info');
    }
    
    const version = {
        timestamp,
        date,
        version: gitHash ? `${timestamp}-${gitHash}` : timestamp.toString(),
        gitHash,
        gitBranch,
        buildDate: date
    };
    
    const outputPath = path.join(__dirname, '../public/version.json');
    fs.writeFileSync(outputPath, JSON.stringify(version, null, 2));
    
    console.log('✅ Version file generated:', version.version);
    console.log(`   Date: ${date}`);
    if (gitHash) {
        console.log(`   Git: ${gitHash} (${gitBranch})`);
    }
    
    return version;
}

if (require.main === module) {
    generateVersion();
}

module.exports = { generateVersion };