Fix PO import not removing products from edited POs

inventory-server/scripts/import/purchase-orders.js

@@ -46,8 +46,10 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
   const startTime = Date.now();
   let poRecordsAdded = 0;
   let poRecordsUpdated = 0;
+  let poRecordsDeleted = 0;
   let receivingRecordsAdded = 0;
   let receivingRecordsUpdated = 0;
+  let receivingRecordsDeleted = 0;
   let totalProcessed = 0;
   
   // Batch size constants
@@ -257,6 +259,10 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
     const totalPOs = poCount[0].total;
     console.log(`Found ${totalPOs} relevant purchase orders`);
 
+    // Skip processing if no POs to process
+    if (totalPOs === 0) {
+      console.log('No purchase orders to process, skipping PO import step');
+    } else {
       // Fetch and process POs in batches
       let offset = 0;
       let allPOsProcessed = false;
@@ -401,6 +407,7 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
           allPOsProcessed = true;
         }
       }
+    }
     
     // 2. Next, fetch all relevant receivings
     outputProgress({
@@ -424,6 +431,10 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
     const totalReceivings = receivingCount[0].total;
     console.log(`Found ${totalReceivings} relevant receivings`);
 
+    // Skip processing if no receivings to process
+    if (totalReceivings === 0) {
+      console.log('No receivings to process, skipping receivings import step');
+    } else {
       // Fetch and process receivings in batches
       offset = 0; // Reset offset for receivings
       let allReceivingsProcessed = false;
@@ -603,6 +614,7 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
           allReceivingsProcessed = true;
         }
       }
+    }
 
     // Add this section to filter out invalid PIDs before final import
     outputProgress({
@@ -655,6 +667,31 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
       message: "Inserting final purchase order records"
     });
 
+    // Create a temp table to track PO IDs being processed
+    await localConnection.query(`
+      DROP TABLE IF EXISTS processed_po_ids;
+      CREATE TEMP TABLE processed_po_ids AS (
+        SELECT DISTINCT po_id FROM temp_purchase_orders
+      );
+    `);
+      
+    // Delete products that were removed from POs and count them
+    const [poDeletedResult] = await localConnection.query(`
+      WITH deleted AS (
+        DELETE FROM purchase_orders
+        WHERE po_id IN (SELECT po_id FROM processed_po_ids)
+          AND NOT EXISTS (
+            SELECT 1 FROM temp_purchase_orders tp
+            WHERE purchase_orders.po_id = tp.po_id AND purchase_orders.pid = tp.pid
+          )
+        RETURNING po_id, pid
+      )
+      SELECT COUNT(*) as count FROM deleted
+    `);
+    
+    poRecordsDeleted = poDeletedResult.rows[0]?.count || 0;
+    console.log(`Deleted ${poRecordsDeleted} products that were removed from purchase orders`);
+
     const [poResult] = await localConnection.query(`
       INSERT INTO purchase_orders (
         po_id, vendor, date, expected_date, pid, sku, name,
@@ -706,6 +743,31 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
       message: "Inserting final receiving records"
     });
 
+    // Create a temp table to track receiving IDs being processed
+    await localConnection.query(`
+      DROP TABLE IF EXISTS processed_receiving_ids;
+      CREATE TEMP TABLE processed_receiving_ids AS (
+        SELECT DISTINCT receiving_id FROM temp_receivings
+      );
+    `);
+      
+    // Delete products that were removed from receivings and count them
+    const [receivingDeletedResult] = await localConnection.query(`
+      WITH deleted AS (
+        DELETE FROM receivings
+        WHERE receiving_id IN (SELECT receiving_id FROM processed_receiving_ids)
+          AND NOT EXISTS (
+            SELECT 1 FROM temp_receivings tr
+            WHERE receivings.receiving_id = tr.receiving_id AND receivings.pid = tr.pid
+          )
+        RETURNING receiving_id, pid
+      )
+      SELECT COUNT(*) as count FROM deleted
+    `);
+    
+    receivingRecordsDeleted = receivingDeletedResult.rows[0]?.count || 0;
+    console.log(`Deleted ${receivingRecordsDeleted} products that were removed from receivings`);
+
     const [receivingsResult] = await localConnection.query(`
       INSERT INTO receivings (
         receiving_id, pid, sku, name, vendor, qty_each, qty_each_orig,
@@ -765,6 +827,8 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
       DROP TABLE IF EXISTS employee_names;
       DROP TABLE IF EXISTS temp_supplier_names;
       DROP TABLE IF EXISTS temp_invalid_pids;
+      DROP TABLE IF EXISTS processed_po_ids;
+      DROP TABLE IF EXISTS processed_receiving_ids;
     `);
     
     // Commit transaction
@@ -774,10 +838,13 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
       status: "complete",
       recordsAdded: poRecordsAdded + receivingRecordsAdded,
       recordsUpdated: poRecordsUpdated + receivingRecordsUpdated,
+      recordsDeleted: poRecordsDeleted + receivingRecordsDeleted,
       poRecordsAdded,
       poRecordsUpdated,
+      poRecordsDeleted,
       receivingRecordsAdded,
       receivingRecordsUpdated,
+      receivingRecordsDeleted,
       totalRecords: totalProcessed
     };
   } catch (error) {
@@ -795,6 +862,7 @@ async function importPurchaseOrders(prodConnection, localConnection, incremental
       error: error.message,
       recordsAdded: 0,
       recordsUpdated: 0,
+      recordsDeleted: 0,
       totalRecords: 0
     };
   }