#!/usr/bin/env node

/**
 * Clear all data from database tables while keeping the schema
 * This removes all users, bookmarks, and resets migrations
 */

require('dotenv').config();
const dbConnection = require('../src/database/connection');

async function clearAllData() {
    try {
        console.log('🧹 Clearing all data from database...');
        
        // Connect to database
        await dbConnection.connect();
        
        // Clear data in the correct order (respecting foreign key constraints)
        console.log('🗑️  Clearing bookmarks...');
        const bookmarksResult = await dbConnection.query('DELETE FROM bookmarks');
        console.log(`   Removed ${bookmarksResult.rowCount} bookmarks`);
        
        console.log('🗑️  Clearing users...');
        const usersResult = await dbConnection.query('DELETE FROM users');
        console.log(`   Removed ${usersResult.rowCount} users`);
        
        console.log('🗑️  Clearing migration history...');
        const migrationsResult = await dbConnection.query('DELETE FROM migrations');
        console.log(`   Removed ${migrationsResult.rowCount} migration records`);
        
        // Reset sequences to start from 1
        console.log('🔄 Resetting ID sequences...');
        await dbConnection.query('ALTER SEQUENCE users_id_seq RESTART WITH 1');
        await dbConnection.query('ALTER SEQUENCE bookmarks_id_seq RESTART WITH 1');
        await dbConnection.query('ALTER SEQUENCE migrations_id_seq RESTART WITH 1');
        
        console.log('✅ All data cleared successfully');
        console.log('💡 Database schema is preserved - you can now add fresh data');
        
    } catch (error) {
        console.error('❌ Failed to clear data:', error.message);
        throw error;
    } finally {
        await dbConnection.close();
    }
}

// Run the clear operation
clearAllData().catch((error) => {
    console.error('❌ Clear data operation failed:', error);
    process.exit(1);
});