const { exec } = require('child_process');
const path = require('path');

// Cron job setup for achievements
const cronJobs = [
    {
        name: 'daily_achievements',
        // Run daily at 19:00 for best-time achievements
        schedule: '0 19 * * *',
        command: `cd ${__dirname} && node best_time_achievements.js >> /var/log/ninjaserver_achievements.log 2>&1`,
        description: 'Daily best-time achievement check at 19:00'
    },
    {
        name: 'weekly_achievements', 
        // Run every Sunday at 19:00 for weekly best-time achievements
        schedule: '0 19 * * 0',
        command: `cd ${__dirname} && node best_time_achievements.js >> /var/log/ninjaserver_achievements.log 2>&1`,
        description: 'Weekly best-time achievement check on Sunday at 19:00'
    },
    {
        name: 'monthly_achievements',
        // Run on last day of month at 19:00 for monthly best-time achievements
        schedule: '0 19 28-31 * * [ $(date -d tomorrow +\\%d) -eq 1 ]',
        command: `cd ${__dirname} && node best_time_achievements.js >> /var/log/ninjaserver_achievements.log 2>&1`,
        description: 'Monthly best-time achievement check on last day of month at 19:00'
    }
];

function setupCronJobs() {
    console.log('🕐 Setting up best-time achievement cron jobs...');
    
    let cronEntries = [];
    
    // Create cron job entries
    cronJobs.forEach(job => {
        const cronEntry = `${job.schedule} ${job.command}`;
        cronEntries.push(cronEntry);
        console.log(`📅 ${job.name}: ${job.schedule} - ${job.description}`);
    });
    
    // Add all cron jobs to crontab
    const allCronEntries = cronEntries.join('\n');
    exec(`(crontab -l 2>/dev/null; echo "${allCronEntries}") | crontab -`, (error, stdout, stderr) => {
        if (error) {
            console.error('❌ Error setting up cron jobs:', error);
            return;
        }
        
        if (stderr) {
            console.error('⚠️  Cron job warning:', stderr);
        }
        
        console.log('✅ All cron jobs setup successfully!');
        console.log('📝 Logs will be written to: /var/log/ninjaserver_achievements.log');
        
        // Show current crontab
        exec('crontab -l', (error, stdout, stderr) => {
            if (!error) {
                console.log('\n📋 Current crontab:');
                console.log(stdout);
            }
        });
    });
}

function removeCronJobs() {
    console.log('🗑️  Removing best-time achievement cron jobs...');
    
    exec('crontab -l | grep -v "best_time_achievements.js" | crontab -', (error, stdout, stderr) => {
        if (error) {
            console.error('❌ Error removing cron jobs:', error);
            return;
        }
        
        console.log('✅ All cron jobs removed successfully!');
    });
}

// Command line interface
if (require.main === module) {
    const command = process.argv[2];
    
    switch (command) {
        case 'setup':
            setupCronJobs();
            break;
        case 'remove':
            removeCronJobs();
            break;
        case 'status':
            exec('crontab -l | grep best_time_achievements', (error, stdout, stderr) => {
                if (stdout) {
                    console.log('✅ Best-time achievement cron jobs are active:');
                    console.log(stdout);
                } else {
                    console.log('❌ No best-time achievement cron jobs found');
                }
            });
            break;
        default:
            console.log('Usage: node setup_cron.js [setup|remove|status]');
            console.log('  setup   - Add best-time achievement cron jobs (daily 19:00, Sunday 19:00, last day of month 19:00)');
            console.log('  remove  - Remove all best-time achievement cron jobs');
            console.log('  status  - Check if best-time achievement cron jobs are active');
    }
}

module.exports = { setupCronJobs, removeCronJobs };