Update import scripts through products

inventory-server/scripts/import/utils.js

@@ -64,25 +64,68 @@ async function setupConnections(sshConfig) {
 
   // Create a wrapper for the PostgreSQL pool to match MySQL interface
   const localConnection = {
+    _client: null,
+    _transactionActive: false,
+
     query: async (text, params) => {
-      const client = await localPool.connect();
-      try {
-        const result = await client.query(text, params);
-        return [result];
-      } finally {
-        client.release();
+      // If we're not in a transaction, use the pool directly
+      if (!localConnection._transactionActive) {
+        const client = await localPool.connect();
+        try {
+          const result = await client.query(text, params);
+          return [result];
+        } finally {
+          client.release();
+        }
       }
+      
+      // If we're in a transaction, use the dedicated client
+      if (!localConnection._client) {
+        throw new Error('No active transaction client');
+      }
+      const result = await localConnection._client.query(text, params);
+      return [result];
     },
+
+    beginTransaction: async () => {
+      if (localConnection._transactionActive) {
+        throw new Error('Transaction already active');
+      }
+      localConnection._client = await localPool.connect();
+      await localConnection._client.query('BEGIN');
+      localConnection._transactionActive = true;
+    },
+
+    commit: async () => {
+      if (!localConnection._transactionActive) {
+        throw new Error('No active transaction to commit');
+      }
+      await localConnection._client.query('COMMIT');
+      localConnection._client.release();
+      localConnection._client = null;
+      localConnection._transactionActive = false;
+    },
+
+    rollback: async () => {
+      if (!localConnection._transactionActive) {
+        throw new Error('No active transaction to rollback');
+      }
+      await localConnection._client.query('ROLLBACK');
+      localConnection._client.release();
+      localConnection._client = null;
+      localConnection._transactionActive = false;
+    },
+
     end: async () => {
+      if (localConnection._client) {
+        localConnection._client.release();
+        localConnection._client = null;
+      }
       await localPool.end();
     }
   };
 
-  return {
-    ssh: tunnel.ssh,
-    prodConnection,
-    localConnection
-  };
+  return { prodConnection, localConnection, tunnel };
 }
 
 // Helper function to close connections