#!/usr/bin/env node

/**
 * Clean up production database - remove test records only
 * 
 * WARNING: This script modifies the production database.
 * It only removes records that match test patterns.
 * It preserves actual player data, matches, and tournaments.
 */

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

// Database connection string
const DB_URL = 'postgresql://euchre_camp:LINGO5row_hiding@dhg.lol:5432/euchre_camp';

// Helper to run SQL and log results
function runSQL(sql, description) {
  console.log(`\n🔍 ${description}...`);
  try {
    const result = execSync(`psql "${DB_URL}" -c "${sql}"`, { encoding: 'utf8' });
    console.log(result);
    return true;
  } catch (error) {
    console.error(`❌ Error: ${error.message}`);
    return false;
  }
}

// Helper to run multi-line SQL
function runMultiLineSQL(sqlLines, description) {
  console.log(`\n🔍 ${description}...`);
  try {
    const sql = sqlLines.join('\n');
    const result = execSync(`psql "${DB_URL}" -c "${sql}"`, { encoding: 'utf8' });
    console.log(result);
    return true;
  } catch (error) {
    console.error(`❌ Error: ${error.message}`);
    return false;
  }
}

// Helper to count records matching pattern
function countRecords(table, column, pattern) {
  const sql = `SELECT COUNT(*) FROM ${table} WHERE ${column} LIKE '${pattern}';`;
  try {
    const result = execSync(`psql "${DB_URL}" -c "${sql}" -t`, { encoding: 'utf8' }).trim();
    return parseInt(result);
  } catch (error) {
    return 0;
  }
}

async function main() {
  console.log('🧹 Cleaning up test records from production database');
  console.log('=============================================\n');

  // Confirm with user
  const readline = require('readline');
  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
  });

  rl.question('⚠️  This will DELETE test records from PRODUCTION database. Continue? (y/N) ', async (answer) => {
    if (answer.toLowerCase() !== 'y' && answer.toLowerCase() !== 'yes') {
      console.log('❌ Cleanup cancelled');
      rl.close();
      process.exit(0);
    }

    rl.close();

    console.log('\n📋 Checking test records...\n');

    // Count test players
    const testPlayerCount = countRecords('players', 'name', '%Test%') +
                           countRecords('players', 'name', '%Setup%') +
                           countRecords('players', 'name', '%Home Test%');
    console.log(`Test players found: ${testPlayerCount}`);

    // Count test tournaments
    const testEventCount = countRecords('events', 'name', '%Test%') +
                          countRecords('events', 'name', '%Setup%');
    console.log(`Test tournaments found: ${testEventCount}`);

    // Count test users
    const testUserCount = countRecords('users', 'email', '%test%') +
                         countRecords('users', 'email', '%setup%');
    console.log(`Test users found: ${testUserCount}`);

    console.log('\n🔄 Starting cleanup...\n');

    // Step 1: Delete test events (tournaments) that have no matches
    console.log('1. Deleting test tournaments without matches...');
    runSQL(
      "DELETE FROM events WHERE (name LIKE '%Test%' OR name LIKE '%Setup%') AND NOT EXISTS (SELECT 1 FROM matches WHERE matches.\"eventId\" = events.id);",
      'Deleted test tournaments'
    );

    // Step 2: Delete test players that have no matches
    console.log('\n2. Deleting test players without matches...');
    runSQL(
      "DELETE FROM players WHERE (name LIKE '%Test%' OR name LIKE '%Setup%' OR name LIKE '%Home Test%') AND NOT EXISTS (SELECT 1 FROM matches WHERE matches.\"team1P1Id\" = players.id) AND NOT EXISTS (SELECT 1 FROM matches WHERE matches.\"team1P2Id\" = players.id) AND NOT EXISTS (SELECT 1 FROM matches WHERE matches.\"team2P1Id\" = players.id) AND NOT EXISTS (SELECT 1 FROM matches WHERE matches.\"team2P2Id\" = players.id);",
      'Deleted test players without matches'
    );

    // Step 3: Delete test users (they shouldn't have player associations)
    console.log('\n3. Deleting test users...');
    runSQL(
      "DELETE FROM users WHERE (email LIKE '%test%' OR email LIKE '%setup%') AND \"playerId\" IS NULL;",
      'Deleted test users'
    );

    // Summary
    console.log('\n✅ Cleanup complete!');
    console.log('\n📊 Remaining test records:');
    runSQL("SELECT COUNT(*) FROM players WHERE name LIKE '%Test%' OR name LIKE '%Setup%' OR name LIKE '%Home Test%';", 'Remaining test players');
    runSQL("SELECT COUNT(*) FROM events WHERE name LIKE '%Test%' OR name LIKE '%Setup%';", 'Remaining test tournaments');
    runSQL("SELECT COUNT(*) FROM users WHERE email LIKE '%test%' OR email LIKE '%setup%';", 'Remaining test users');

    console.log('\n💡 Note: Some test records may remain if they have:');
    console.log('   - Associated matches');
    console.log('   - Associated users');
    console.log('   These were preserved to maintain data integrity.');
  });
}

// Run main function
main();