const { query, pool } = require('./config/database');

async function analyzeDatabase() {
  console.log('🔍 Analyzing Database Schema...\n');
  
  try {
    // Get all tables
    console.log('📋 Tables in database:');
    const tables = await query(`
      SELECT tablename 
      FROM pg_tables 
      WHERE schemaname = 'public' 
      ORDER BY tablename
    `);
    tables.rows.forEach(row => console.log(`  • ${row.tablename}`));
    
    // Analyze each important table
    const importantTables = [
      'products', 'product_images', 'blogposts', 'pages', 
      'portfolioprojects', 'adminusers', 'customers', 'orders'
    ];
    
    for (const table of importantTables) {
      const exists = tables.rows.find(r => r.tablename === table);
      if (!exists) {
        console.log(`\n⚠️  Missing table: ${table}`);
        continue;
      }
      
      console.log(`\n📊 Table: ${table}`);
      const columns = await query(`
        SELECT column_name, data_type, is_nullable, column_default
        FROM information_schema.columns
        WHERE table_name = $1
        ORDER BY ordinal_position
      `, [table]);
      
      columns.rows.forEach(col => {
        console.log(`  ${col.column_name} | ${col.data_type} | ${col.is_nullable === 'YES' ? 'NULL' : 'NOT NULL'}`);
      });
      
      // Check foreign keys
      const fkeys = await query(`
        SELECT
          tc.constraint_name,
          kcu.column_name,
          ccu.table_name AS foreign_table_name,
          ccu.column_name AS foreign_column_name
        FROM information_schema.table_constraints AS tc
        JOIN information_schema.key_column_usage AS kcu
          ON tc.constraint_name = kcu.constraint_name
        JOIN information_schema.constraint_column_usage AS ccu
          ON ccu.constraint_name = tc.constraint_name
        WHERE tc.constraint_type = 'FOREIGN KEY' AND tc.table_name = $1
      `, [table]);
      
      if (fkeys.rows.length > 0) {
        console.log('  Foreign Keys:');
        fkeys.rows.forEach(fk => {
          console.log(`    ${fk.column_name} -> ${fk.foreign_table_name}(${fk.foreign_column_name})`);
        });
      }
    }
    
    // Check indexes
    console.log('\n📇 Indexes:');
    const indexes = await query(`
      SELECT
        tablename,
        indexname,
        indexdef
      FROM pg_indexes
      WHERE schemaname = 'public' AND tablename IN ('products', 'product_images', 'blogposts', 'portfolioprojects', 'pages')
      ORDER BY tablename, indexname
    `);
    
    indexes.rows.forEach(idx => {
      console.log(`  ${idx.tablename}.${idx.indexname}`);
    });
    
    process.exit(0);
  } catch (error) {
    console.error('❌ Error:', error.message);
    process.exit(1);
  }
}

analyzeDatabase();