update new API

delete-all-context.js

@@ -0,0 +1,165 @@
+/**
+ * Delete all or specific Context records from database
+ * WARNING: This will permanently delete data!
+ */
+
+const { sequelize } = require('./config/database');
+const { Context } = require('./models');
+
+// ============================================
+// CONFIGURATION
+// ============================================
+
+const DELETE_MODE = 'all'; // Options: 'all', 'vocabulary_only', 'by_type'
+
+// For 'by_type' mode - specify which type to delete
+const TYPE_TO_DELETE = 'vocabulary'; // e.g., 'vocabulary', 'grammar', etc.
+
+// For safety confirmation
+const CONFIRM_DELETE = true; // Set to true to actually delete
+
+// ============================================
+// MAIN FUNCTIONS
+// ============================================
+
+async function deleteAllContext() {
+  console.log('🗑️  Deleting ALL context records...');
+  
+  const count = await Context.count();
+  console.log(`📊 Found ${count} records to delete`);
+  
+  if (!CONFIRM_DELETE) {
+    console.log('⚠️  CONFIRM_DELETE is false. Set it to true to proceed.');
+    return 0;
+  }
+
+  const result = await Context.destroy({
+    where: {},
+    truncate: true
+  });
+
+  console.log(`✅ Deleted all context records`);
+  return count;
+}
+
+async function deleteVocabularyOnly() {
+  console.log('🗑️  Deleting vocabulary context records only...');
+  
+  const count = await Context.count({
+    where: { type: 'vocabulary' }
+  });
+  console.log(`📊 Found ${count} vocabulary records to delete`);
+  
+  if (!CONFIRM_DELETE) {
+    console.log('⚠️  CONFIRM_DELETE is false. Set it to true to proceed.');
+    return 0;
+  }
+
+  const result = await Context.destroy({
+    where: { type: 'vocabulary' }
+  });
+
+  console.log(`✅ Deleted ${result} vocabulary records`);
+  return result;
+}
+
+async function deleteByType(type) {
+  console.log(`🗑️  Deleting context records with type: ${type}...`);
+  
+  const count = await Context.count({
+    where: { type: type }
+  });
+  console.log(`📊 Found ${count} records to delete`);
+  
+  if (!CONFIRM_DELETE) {
+    console.log('⚠️  CONFIRM_DELETE is false. Set it to true to proceed.');
+    return 0;
+  }
+
+  const result = await Context.destroy({
+    where: { type: type }
+  });
+
+  console.log(`✅ Deleted ${result} records with type '${type}'`);
+  return result;
+}
+
+async function showStats() {
+  console.log('\n📊 Current Context Statistics:');
+  
+  const total = await Context.count();
+  console.log(`Total records: ${total}`);
+  
+  // Count by type
+  const types = await sequelize.query(
+    'SELECT type, COUNT(*) as count FROM context GROUP BY type',
+    { type: sequelize.QueryTypes.SELECT }
+  );
+  
+  console.log('\nBy Type:');
+  types.forEach(t => {
+    console.log(`  - ${t.type}: ${t.count}`);
+  });
+  
+  return total;
+}
+
+// ============================================
+// MAIN EXECUTION
+// ============================================
+
+async function main() {
+  try {
+    console.log('🔄 Starting Context deletion script...\n');
+    
+    await sequelize.authenticate();
+    console.log('✅ Database connection OK\n');
+
+    // Show current stats
+    await showStats();
+    console.log('\n---\n');
+
+    let result = 0;
+
+    switch (DELETE_MODE) {
+      case 'all':
+        result = await deleteAllContext();
+        break;
+      
+      case 'vocabulary_only':
+        result = await deleteVocabularyOnly();
+        break;
+      
+      case 'by_type':
+        result = await deleteByType(TYPE_TO_DELETE);
+        break;
+      
+      default:
+        console.log('❌ Invalid DELETE_MODE');
+    }
+
+    console.log('\n---\n');
+    
+    // Show stats after deletion
+    await showStats();
+
+    console.log('\n✅ Operation complete!');
+    console.log(`📊 Records deleted: ${result}`);
+    
+    process.exit(0);
+  } catch (error) {
+    console.error('❌ Error during deletion:', error.message);
+    console.error(error.stack);
+    process.exit(1);
+  }
+}
+
+// Safety check
+if (!CONFIRM_DELETE) {
+  console.log('\n⚠️  WARNING: CONFIRM_DELETE is set to false');
+  console.log('This is a DRY RUN. No data will be deleted.');
+  console.log('Set CONFIRM_DELETE = true to actually delete data.\n');
+}
+
+// Run the script
+main();