Add incremental import support and tracking for database synchronization

inventory-server/db/config-schema.sql

@@ -169,4 +169,27 @@ ORDER BY
         ELSE 4
     END,
     c.name,
-    st.vendor; 
+    st.vendor;
+
+CREATE TABLE IF NOT EXISTS sync_status (
+    table_name VARCHAR(50) PRIMARY KEY,
+    last_sync_timestamp TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    last_sync_id BIGINT,
+    INDEX idx_last_sync (last_sync_timestamp)
+);
+
+CREATE TABLE IF NOT EXISTS import_history (
+    id BIGINT AUTO_INCREMENT PRIMARY KEY,
+    table_name VARCHAR(50) NOT NULL,
+    start_time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    end_time TIMESTAMP NULL,
+    duration_seconds INT,
+    records_added INT DEFAULT 0,
+    records_updated INT DEFAULT 0,
+    is_incremental BOOLEAN DEFAULT FALSE,
+    status ENUM('running', 'completed', 'failed', 'cancelled') DEFAULT 'running',
+    error_message TEXT,
+    additional_info JSON,
+    INDEX idx_table_time (table_name, start_time),
+    INDEX idx_status (status)
+); 

inventory-server/scripts/import-from-prod.js

@@ -10,12 +10,16 @@ const importPurchaseOrders = require('./import/purchase-orders');
 dotenv.config({ path: path.join(__dirname, "../.env") });
 
 // Constants to control which imports run
-const IMPORT_CATEGORIES = false;
+const IMPORT_CATEGORIES = true;
-const IMPORT_PRODUCTS = false;
+const IMPORT_PRODUCTS = true;
-const IMPORT_ORDERS = false;
+const IMPORT_ORDERS = true;
 const IMPORT_PURCHASE_ORDERS = true;
 
+// Add flag for incremental updates
+const INCREMENTAL_UPDATE = process.env.INCREMENTAL_UPDATE === 'true';
+
 // SSH configuration
+// In import-from-prod.js
 const sshConfig = {
   ssh: {
     host: process.env.PROD_SSH_HOST,
@@ -24,16 +28,16 @@ const sshConfig = {
     privateKey: process.env.PROD_SSH_KEY_PATH
       ? require("fs").readFileSync(process.env.PROD_SSH_KEY_PATH)
       : undefined,
+    compress: true, // Enable SSH compression
   },
-  // Production database configuration
   prodDbConfig: {
     host: process.env.PROD_DB_HOST || "localhost",
     user: process.env.PROD_DB_USER,
     password: process.env.PROD_DB_PASSWORD,
     database: process.env.PROD_DB_NAME,
     port: process.env.PROD_DB_PORT || 3306,
+    timezone: 'Z',
   },
-  // Local database configuration
   localDbConfig: {
     host: process.env.DB_HOST,
     user: process.env.DB_USER,
@@ -44,6 +48,13 @@ const sshConfig = {
     connectionLimit: 10,
     queueLimit: 0,
     namedPlaceholders: true,
+    maxAllowedPacket: 64 * 1024 * 1024, // 64MB
+    connectTimeout: 60000,
+    enableKeepAlive: true,
+    keepAliveInitialDelay: 10000,
+    compress: true,
+    timezone: 'Z',
+    stringifyObjects: false,
   }
 };
 
@@ -68,6 +79,7 @@ async function main() {
   const startTime = Date.now();
   let connections;
   let completedSteps = 0;
+  let importHistoryId;
   const totalSteps = [
     IMPORT_CATEGORIES,
     IMPORT_PRODUCTS,
@@ -80,7 +92,7 @@ async function main() {
     outputProgress({
       status: "running",
       operation: "Import process",
-      message: "Initializing SSH tunnel...",
+      message: `Initializing SSH tunnel for ${INCREMENTAL_UPDATE ? 'incremental' : 'full'} import...`,
       current: completedSteps,
       total: totalSteps,
       elapsed: formatElapsedTime(startTime)
@@ -91,6 +103,39 @@ async function main() {
 
     if (isImportCancelled) throw new Error("Import cancelled");
 
+    // Initialize sync_status table if it doesn't exist
+    await localConnection.query(`
+      CREATE TABLE IF NOT EXISTS sync_status (
+        table_name VARCHAR(50) PRIMARY KEY,
+        last_sync_timestamp TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+        last_sync_id BIGINT,
+        INDEX idx_last_sync (last_sync_timestamp)
+      );
+    `);
+
+    // Create import history record for the overall session
+    const [historyResult] = await localConnection.query(`
+      INSERT INTO import_history (
+        table_name, 
+        start_time, 
+        is_incremental,
+        status,
+        additional_info
+      ) VALUES (
+        'all_tables',
+        NOW(),
+        ?,
+        'running',
+        JSON_OBJECT(
+          'categories_enabled', ?,
+          'products_enabled', ?,
+          'orders_enabled', ?,
+          'purchase_orders_enabled', ?
+        )
+      )
+    `, [INCREMENTAL_UPDATE, IMPORT_CATEGORIES, IMPORT_PRODUCTS, IMPORT_ORDERS, IMPORT_PURCHASE_ORDERS]);
+    importHistoryId = historyResult.insertId;
+
     const results = {
       categories: null,
       products: null,
@@ -98,37 +143,84 @@ async function main() {
       purchaseOrders: null
     };
 
+    let totalRecordsAdded = 0;
+    let totalRecordsUpdated = 0;
+
     // Run each import based on constants
     if (IMPORT_CATEGORIES) {
       results.categories = await importCategories(prodConnection, localConnection);
       if (isImportCancelled) throw new Error("Import cancelled");
       completedSteps++;
+      if (results.categories.recordsAdded) totalRecordsAdded += results.categories.recordsAdded;
+      if (results.categories.recordsUpdated) totalRecordsUpdated += results.categories.recordsUpdated;
     }
 
     if (IMPORT_PRODUCTS) {
       results.products = await importProducts(prodConnection, localConnection);
       if (isImportCancelled) throw new Error("Import cancelled");
       completedSteps++;
+      if (results.products.recordsAdded) totalRecordsAdded += results.products.recordsAdded;
+      if (results.products.recordsUpdated) totalRecordsUpdated += results.products.recordsUpdated;
     }
 
     if (IMPORT_ORDERS) {
       results.orders = await importOrders(prodConnection, localConnection);
       if (isImportCancelled) throw new Error("Import cancelled");
       completedSteps++;
+      if (results.orders.recordsAdded) totalRecordsAdded += results.orders.recordsAdded;
+      if (results.orders.recordsUpdated) totalRecordsUpdated += results.orders.recordsUpdated;
     }
 
     if (IMPORT_PURCHASE_ORDERS) {
       results.purchaseOrders = await importPurchaseOrders(prodConnection, localConnection);
       if (isImportCancelled) throw new Error("Import cancelled");
       completedSteps++;
+      if (results.purchaseOrders.recordsAdded) totalRecordsAdded += results.purchaseOrders.recordsAdded;
+      if (results.purchaseOrders.recordsUpdated) totalRecordsUpdated += results.purchaseOrders.recordsUpdated;
     }
 
     const endTime = Date.now();
     const totalElapsedSeconds = Math.round((endTime - startTime) / 1000);
+
+    // Update import history with final stats
+    await localConnection.query(`
+      UPDATE import_history 
+      SET 
+        end_time = NOW(),
+        duration_seconds = ?,
+        records_added = ?,
+        records_updated = ?,
+        status = 'completed',
+        additional_info = JSON_OBJECT(
+          'categories_enabled', ?,
+          'products_enabled', ?,
+          'orders_enabled', ?,
+          'purchase_orders_enabled', ?,
+          'categories_result', CAST(? AS JSON),
+          'products_result', CAST(? AS JSON),
+          'orders_result', CAST(? AS JSON),
+          'purchase_orders_result', CAST(? AS JSON)
+        )
+      WHERE id = ?
+    `, [
+      totalElapsedSeconds,
+      totalRecordsAdded,
+      totalRecordsUpdated,
+      IMPORT_CATEGORIES,
+      IMPORT_PRODUCTS,
+      IMPORT_ORDERS,
+      IMPORT_PURCHASE_ORDERS,
+      JSON.stringify(results.categories),
+      JSON.stringify(results.products),
+      JSON.stringify(results.orders),
+      JSON.stringify(results.purchaseOrders),
+      importHistoryId
+    ]);
+
     outputProgress({
       status: "complete",
       operation: "Import process",
-      message: `All imports completed successfully in ${formatElapsedTime(totalElapsedSeconds)}`,
+      message: `${INCREMENTAL_UPDATE ? 'Incremental' : 'Full'} import completed successfully in ${formatElapsedTime(totalElapsedSeconds)}`,
       current: completedSteps,
       total: totalSteps,
       elapsed: formatElapsedTime(startTime),
@@ -146,13 +238,27 @@ async function main() {
   } catch (error) {
     const endTime = Date.now();
     const totalElapsedSeconds = Math.round((endTime - startTime) / 1000);
+
+    // Update import history with error
+    if (importHistoryId) {
+      await connections?.localConnection?.query(`
+        UPDATE import_history 
+        SET 
+          end_time = NOW(),
+          duration_seconds = ?,
+          status = ?,
+          error_message = ?
+        WHERE id = ?
+      `, [totalElapsedSeconds, error.message === "Import cancelled" ? 'cancelled' : 'failed', error.message, importHistoryId]);
+    }
+
     console.error("Error during import process:", error);
     outputProgress({
       status: error.message === "Import cancelled" ? "cancelled" : "error",
       operation: "Import process",
       message: error.message === "Import cancelled" 
-        ? `Import cancelled by user after ${formatElapsedTime(totalElapsedSeconds)}`
+        ? `${INCREMENTAL_UPDATE ? 'Incremental' : 'Full'} import cancelled by user after ${formatElapsedTime(totalElapsedSeconds)}`
-        : `Import failed after ${formatElapsedTime(totalElapsedSeconds)}`,
+        : `${INCREMENTAL_UPDATE ? 'Incremental' : 'Full'} import failed after ${formatElapsedTime(totalElapsedSeconds)}`,
       error: error.message,
       current: completedSteps,
       total: totalSteps,

inventory-server/scripts/import/orders.js

@@ -12,6 +12,12 @@ async function importOrders(prodConnection, localConnection) {
   const missingProducts = new Set(); // Store products that need to be imported
 
   try {
+    // Get last sync info
+    const [syncInfo] = await localConnection.query(
+      "SELECT last_sync_timestamp FROM sync_status WHERE table_name = 'orders'"
+    );
+    const lastSyncTime = syncInfo?.[0]?.last_sync_timestamp || '1970-01-01';
+
     // First get the column names from the table structure
     const [columns] = await localConnection.query(`
       SELECT COLUMN_NAME 
@@ -24,14 +30,16 @@ async function importOrders(prodConnection, localConnection) {
       .map((col) => col.COLUMN_NAME)
       .filter((name) => name !== "id"); // Skip auto-increment ID
 
-    // Get total count first for progress indication
+    // Get total count first for progress indication - modified for incremental
     const [countResult] = await prodConnection.query(`
       SELECT COUNT(*) as total
       FROM order_items oi FORCE INDEX (PRIMARY)
       JOIN _order o FORCE INDEX (PRIMARY) ON oi.order_id = o.order_id
       WHERE o.order_status >= 15
-        AND o.date_placed_onlydate >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
+        AND (o.date_placed_onlydate > ?
-    `);
+        OR o.stamp > ?)
+    `, [lastSyncTime, lastSyncTime]);
+
     const totalOrders = countResult[0].total;
 
     outputProgress({
@@ -81,9 +89,10 @@ async function importOrders(prodConnection, localConnection) {
         FROM order_items oi
         JOIN _order o ON oi.order_id = o.order_id
         WHERE o.order_status >= 15
-          AND o.date_placed_onlydate >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
+          AND (o.date_placed_onlydate > ?
+          OR o.stamp > ?)
         LIMIT ? OFFSET ?
-      `, [batchSize, offset]);
+      `, [lastSyncTime, lastSyncTime, batchSize, offset]);
 
       // Check if all products exist before inserting orders
       const orderProductPids = [...new Set(orders.map((o) => o.pid))];
@@ -213,6 +222,13 @@ async function importOrders(prodConnection, localConnection) {
       }
     }
 
+    // After successful import, update the sync status
+    await localConnection.query(`
+      INSERT INTO sync_status (table_name, last_sync_timestamp)
+      VALUES ('orders', NOW())
+      ON DUPLICATE KEY UPDATE last_sync_timestamp = NOW()
+    `);
+
     outputProgress({
       status: "complete",
       operation: "Orders import completed",
@@ -225,7 +241,9 @@ async function importOrders(prodConnection, localConnection) {
       status: "complete",
       totalImported: total,
       missingProducts: missingProducts.size,
-      retriedOrders: skippedOrders.size
+      retriedOrders: skippedOrders.size,
+      incrementalUpdate: true,
+      lastSyncTime
     };
   } catch (error) {
     outputProgress({

inventory-server/scripts/import/products.js

@@ -1,211 +1,473 @@
 const { outputProgress, formatElapsedTime, estimateRemaining, calculateRate } = require('../metrics/utils/progress');
 
-async function importMissingProducts(prodConnection, localConnection, missingPids) {
+// Utility functions
-  // First get the column names from the table structure
+const imageUrlBase = 'https://sbing.com/i/products/0000/';
-  const [columns] = await localConnection.query(`
+const getImageUrls = (pid) => {
-    SELECT COLUMN_NAME 
+  const paddedPid = pid.toString().padStart(6, '0');
-    FROM INFORMATION_SCHEMA.COLUMNS 
+  const basePath = `${imageUrlBase}${paddedPid.slice(0, 3)}/${pid}`;
-    WHERE TABLE_NAME = 'products'
+  return {
-    ORDER BY ORDINAL_POSITION
+    image: `${basePath}-t-`,
+    image_175: `${basePath}-175x175-`,
+    image_full: `${basePath}-o-`
+  };
+};
+
+async function setupTemporaryTables(connection) {
+  await connection.query(`
+    CREATE TEMPORARY TABLE IF NOT EXISTS temp_categories (
+      cat_id INT PRIMARY KEY,
+      name VARCHAR(255)
+    ) ENGINE=InnoDB;
+    
+    CREATE TEMPORARY TABLE IF NOT EXISTS temp_product_images (
+      pid INT,
+      iid INT,
+      image_type ENUM('thumbnail', '175', 'full'),
+      url VARCHAR(255),
+      PRIMARY KEY (pid, image_type)
+    ) ENGINE=InnoDB;
+    
+    CREATE TEMPORARY TABLE IF NOT EXISTS temp_inventory_status (
+      pid INT PRIMARY KEY,
+      stock_quantity INT,
+      pending_qty INT,
+      preorder_count INT,
+      notions_inv_count INT
+    ) ENGINE=InnoDB;
+    
+    CREATE TEMPORARY TABLE IF NOT EXISTS temp_product_prices (
+      pid INT PRIMARY KEY,
+      price DECIMAL(10,2),
+      regular_price DECIMAL(10,2),
+      cost_price DECIMAL(10,5)
+    ) ENGINE=InnoDB;
+
+    INSERT INTO temp_categories
+    SELECT cat_id, name FROM categories;
+    
+    CREATE INDEX idx_temp_cat_id ON temp_categories(cat_id);
   `);
+}
 
-  const columnNames = columns.map((col) => col.COLUMN_NAME);
+async function cleanupTemporaryTables(connection) {
+  await connection.query(`
+    DROP TEMPORARY TABLE IF EXISTS temp_categories;
+    DROP TEMPORARY TABLE IF EXISTS temp_product_images;
+    DROP TEMPORARY TABLE IF EXISTS temp_inventory_status;
+    DROP TEMPORARY TABLE IF EXISTS temp_product_prices;
+  `);
+}
 
-  // Get the missing products from production
+async function materializeCalculations(prodConnection, localConnection) {
-  const [products] = await prodConnection.query(`
+  outputProgress({
+    status: "running",
+    operation: "Products import",
+    message: "Fetching inventory and order data from production"
+  });
+
+  // Get all inventory and order data from production in one query
+  const [prodInventory] = await prodConnection.query(`
+    SELECT 
+      p.pid,
+      COALESCE(si.available_local, 0) as stock_quantity,
+      COALESCE(ci.onpreorder, 0) as preorder_count,
+      COALESCE(pnb.inventory, 0) as notions_inv_count,
+      COALESCE(
+        (
+          SELECT SUM(oi.qty_ordered - oi.qty_placed)
+          FROM order_items oi
+          JOIN _order o ON oi.order_id = o.order_id
+          WHERE oi.prod_pid = p.pid
+            AND o.date_placed != '0000-00-00 00:00:00'
+            AND o.date_shipped = '0000-00-00 00:00:00'
+            AND oi.pick_finished = 0
+            AND oi.qty_back = 0
+            AND o.order_status != 15
+            AND o.order_status < 90
+            AND oi.qty_ordered >= oi.qty_placed
+            AND oi.qty_ordered > 0
+        ), 0
+      ) as pending_qty
+    FROM products p
+    LEFT JOIN shop_inventory si ON p.pid = si.pid AND si.store = 0
+    LEFT JOIN current_inventory ci ON p.pid = ci.pid
+    LEFT JOIN product_notions_b2b pnb ON p.pid = pnb.pid
+  `);
+
+  outputProgress({
+    status: "running",
+    operation: "Products import",
+    message: `Processing ${prodInventory.length} inventory records`
+  });
+
+  // Insert inventory data into local temp table in batches
+  for (let i = 0; i < prodInventory.length; i += 1000) {
+    const batch = prodInventory.slice(i, i + 1000);
+    const values = batch.map(row => [
+      row.pid,
+      Math.max(0, row.stock_quantity - row.pending_qty), // Calculate final stock quantity
+      row.pending_qty,
+      row.preorder_count,
+      row.notions_inv_count
+    ]);
+
+    if (values.length > 0) {
+      await localConnection.query(`
+        INSERT INTO temp_inventory_status (pid, stock_quantity, pending_qty, preorder_count, notions_inv_count)
+        VALUES ?
+        ON DUPLICATE KEY UPDATE
+          stock_quantity = VALUES(stock_quantity),
+          pending_qty = VALUES(pending_qty),
+          preorder_count = VALUES(preorder_count),
+          notions_inv_count = VALUES(notions_inv_count)
+      `, [values]);
+    }
+
+    outputProgress({
+      status: "running",
+      operation: "Products import",
+      message: `Processed ${Math.min(i + 1000, prodInventory.length)} of ${prodInventory.length} inventory records`,
+      current: i + batch.length,
+      total: prodInventory.length
+    });
+  }
+
+  outputProgress({
+    status: "running",
+    operation: "Products import",
+    message: "Fetching pricing data from production"
+  });
+
+  // Get prices from production
+  const [prodPrices] = await prodConnection.query(`
     SELECT 
       p.pid,
-      p.description AS title,
-      p.notes AS description,
-      p.itemnumber AS SKU,
-      p.date_created,
-      p.datein AS first_received,
-      p.location,
-      COALESCE(si.available_local, 0) - COALESCE(
-        (SELECT SUM(oi.qty_ordered - oi.qty_placed)
-         FROM order_items oi
-                JOIN _order o ON oi.order_id = o.order_id
-         WHERE oi.prod_pid = p.pid
-                AND o.date_placed != '0000-00-00 00:00:00'
-                AND o.date_shipped = '0000-00-00 00:00:00'
-                AND oi.pick_finished = 0
-                AND oi.qty_back = 0
-                AND o.order_status != 15
-                AND o.order_status < 90
-                AND oi.qty_ordered >= oi.qty_placed
-         AND oi.qty_ordered > 0), 0) AS stock_quantity,
-      ci.onpreorder AS preorder_count,
-      pnb.inventory AS notions_inv_count,
       COALESCE(pcp.price_each, 0) as price,
       COALESCE(p.sellingprice, 0) AS regular_price,
-      COALESCE((SELECT ROUND(AVG(costeach), 5)
+      COALESCE(
-                FROM product_inventory
+        (SELECT ROUND(AVG(costeach), 5)
-                WHERE pid = p.pid
+         FROM product_inventory
-                AND COUNT > 0), 0) AS cost_price,
+         WHERE pid = p.pid
-      NULL AS landing_cost_price,
+         AND COUNT > 0), 0
-      p.upc AS barcode,
+      ) AS cost_price
-      p.harmonized_tariff_code,
-      p.stamp AS updated_at,
-      CASE WHEN si.show + si.buyable > 0 THEN 1 ELSE 0 END AS visible,
-      CASE WHEN p.reorder >= 0 THEN 1 ELSE 0 END AS replenishable,
-      s.companyname AS vendor,
-      CASE WHEN s.companyname = 'Notions' THEN sid.notions_itemnumber ELSE sid.supplier_itemnumber END AS vendor_reference,
-      sid.notions_itemnumber AS notions_reference,
-      CONCAT('https://www.acherryontop.com/shop/product/', p.pid) AS permalink,
-      (SELECT CONCAT('https://sbing.com/i/products/0000/', 
-                    SUBSTRING(LPAD(p.pid, 6, '0'), 1, 3), '/', 
-                    p.pid, '-t-', MIN(PI.iid), '.jpg')
-       FROM product_images PI
-       WHERE PI.pid = p.pid AND PI.hidden = 0) AS image,
-      (SELECT CONCAT('https://sbing.com/i/products/0000/',
-                    SUBSTRING(LPAD(p.pid, 6, '0'), 1, 3), '/',
-                    p.pid, '-175x175-', MIN(PI.iid), '.jpg')
-       FROM product_images PI
-       WHERE PI.pid = p.pid AND PI.hidden = 0 AND PI.width = 175) AS image_175,
-      (SELECT CONCAT('https://sbing.com/i/products/0000/',
-                    SUBSTRING(LPAD(p.pid, 6, '0'), 1, 3), '/',
-                    p.pid, '-o-', MIN(PI.iid), '.jpg')
-       FROM product_images PI 
-       WHERE PI.pid = p.pid AND PI.hidden = 0) AS image_full,
-      pc1.name AS brand,
-      pc2.name AS line,
-      pc3.name AS subline,
-      pc4.name AS artist,
-      NULL AS options,
-      NULL AS tags,
-      COALESCE(CASE 
-          WHEN sid.supplier_id = 92 THEN sid.notions_qty_per_unit
-          ELSE sid.supplier_qty_per_unit
-      END, sid.notions_qty_per_unit) AS moq,
-      NULL AS uom,
-      p.rating,
-      p.rating_votes AS reviews,
-      p.weight,
-      p.length,
-      p.width,
-      p.height,
-      (SELECT COUNT(*) FROM mybasket mb WHERE mb.item = p.pid AND mb.qty > 0) AS baskets,
-      (SELECT COUNT(*) FROM product_notify pn WHERE pn.pid = p.pid) AS notifies,
-      p.totalsold AS total_sold,
-      p.country_of_origin,
-      pls.date_sold as date_last_sold,
-      GROUP_CONCAT(DISTINCT CASE WHEN pc.cat_id IS NOT NULL THEN pci.cat_id END) as category_ids
     FROM products p
-      LEFT JOIN current_inventory ci ON p.pid = ci.pid
+    LEFT JOIN product_current_prices pcp ON p.pid = pcp.pid
-      LEFT JOIN product_notions_b2b pnb ON p.pid = pnb.pid
+    WHERE pcp.active = 1
-      LEFT JOIN shop_inventory si ON p.pid = si.pid AND si.store = 0
+  `);
-      LEFT JOIN supplier_item_data sid ON p.pid = sid.pid
-      LEFT JOIN suppliers s ON sid.supplier_id = s.supplierid
-      LEFT JOIN product_category_index pci ON p.pid = pci.pid
-      LEFT JOIN product_categories pc ON pci.cat_id = pc.cat_id 
-        AND pc.type IN (10, 20, 11, 21, 12, 13)
-        AND pci.cat_id NOT IN (16, 17)
-      LEFT JOIN product_categories pc1 ON p.company = pc1.cat_id
-      LEFT JOIN product_categories pc2 ON p.line = pc2.cat_id
-      LEFT JOIN product_categories pc3 ON p.subline = pc3.cat_id
-      LEFT JOIN product_categories pc4 ON p.artist = pc4.cat_id
-      LEFT JOIN product_last_sold pls ON p.pid = pls.pid
-    LEFT JOIN (
-      SELECT pid, MIN(price_each) as price_each
-      FROM product_current_prices
-      WHERE active = 1
-      GROUP BY pid
-    ) pcp ON p.pid = pcp.pid
-    WHERE p.pid IN (?)
-    GROUP BY p.pid
-  `, [missingPids]);
 
-  if (products.length > 0) {
+  outputProgress({
-    // Map values in the same order as columns
+    status: "running",
-    const productValues = products.flatMap(product => 
+    operation: "Products import",
-      columnNames.map(col => {
+    message: `Processing ${prodPrices.length} price records`
-        const val = product[col] ?? null;
+  });
-        if (col === "managing_stock") return 1;
-        if (typeof val === "number") return val || 0;
-        return val;
-      })
-    );
 
-    // Generate placeholders for all products
+  // Insert prices into local temp table in batches
-    const placeholders = products
+  for (let i = 0; i < prodPrices.length; i += 1000) {
-      .map(() => `(${Array(columnNames.length).fill("?").join(",")})`)
+    const batch = prodPrices.slice(i, i + 1000);
-      .join(",");
+    const values = batch.map(row => [
+      row.pid,
+      row.price,
+      row.regular_price,
+      row.cost_price
+    ]);
 
-    // Build and execute the query
+    if (values.length > 0) {
-    const query = `
+      await localConnection.query(`
-      INSERT INTO products (${columnNames.join(",")})
+        INSERT INTO temp_product_prices (pid, price, regular_price, cost_price)
-      VALUES ${placeholders}
+        VALUES ?
-      ON DUPLICATE KEY UPDATE ${columnNames
+        ON DUPLICATE KEY UPDATE
-        .filter((col) => col !== "pid")
+          price = VALUES(price),
-        .map((col) => `${col} = VALUES(${col})`)
+          regular_price = VALUES(regular_price),
-        .join(",")}
+          cost_price = VALUES(cost_price)
-    `;
+      `, [values]);
-
-    await localConnection.query(query, productValues);
-
-    // Verify products were inserted before proceeding with categories
-    const [insertedProducts] = await localConnection.query(
-      "SELECT pid FROM products WHERE pid IN (?)",
-      [products.map(p => p.pid)]
-    );
-    const insertedPids = new Set(insertedProducts.map(p => p.pid));
-
-    // Handle category relationships if any
-    const categoryRelationships = [];
-    products.forEach(product => {
-      // Only add category relationships for products that were successfully inserted
-      if (insertedPids.has(product.pid) && product.category_ids) {
-        const catIds = product.category_ids
-          .split(",")
-          .map(id => id.trim())
-          .filter(id => id)
-          .map(Number);
-        catIds.forEach(catId => {
-          if (catId) categoryRelationships.push([catId, product.pid]);
-        });
-      }
-    });
-
-    if (categoryRelationships.length > 0) {
-      // Verify categories exist before inserting relationships
-      const uniqueCatIds = [...new Set(categoryRelationships.map(([catId]) => catId))];
-      const [existingCats] = await localConnection.query(
-        "SELECT cat_id FROM categories WHERE cat_id IN (?)",
-        [uniqueCatIds]
-      );
-      const existingCatIds = new Set(existingCats.map(c => c.cat_id));
-
-      // Filter relationships to only include existing categories
-      const validRelationships = categoryRelationships.filter(([catId]) => 
-        existingCatIds.has(catId)
-      );
-
-      if (validRelationships.length > 0) {
-        const catPlaceholders = validRelationships
-          .map(() => "(?, ?)")
-          .join(",");
-        await localConnection.query(
-          `
-          INSERT INTO product_categories (cat_id, pid)
-          VALUES ${catPlaceholders}
-          ON DUPLICATE KEY UPDATE cat_id = VALUES(cat_id)
-          `,
-          validRelationships.flat()
-        );
-      }
     }
+
+    outputProgress({
+      status: "running",
+      operation: "Products import",
+      message: `Processed ${Math.min(i + 1000, prodPrices.length)} of ${prodPrices.length} price records`,
+      current: i + batch.length,
+      total: prodPrices.length
+    });
   }
+
+  outputProgress({
+    status: "running",
+    operation: "Products import",
+    message: "Finished materializing calculations"
+  });
 }
 
 async function importProducts(prodConnection, localConnection) {
-  outputProgress({
-    operation: "Starting products import - Getting schema",
-    status: "running",
-  });
-
   const startTime = Date.now();
 
   try {
+    // Get column names first
+    const [columns] = await localConnection.query(`
+      SELECT COLUMN_NAME 
+      FROM INFORMATION_SCHEMA.COLUMNS 
+      WHERE TABLE_NAME = 'products'
+      ORDER BY ORDINAL_POSITION
+    `);
+    const columnNames = columns.map(col => col.COLUMN_NAME);
+
+    // Get last sync info
+    const [syncInfo] = await localConnection.query(
+      "SELECT last_sync_timestamp FROM sync_status WHERE table_name = 'products'"
+    );
+    const lastSyncTime = syncInfo?.[0]?.last_sync_timestamp || '1970-01-01';
+
+    // Setup temporary tables
+    await setupTemporaryTables(localConnection);
+    
+    // Materialize calculations
+    await materializeCalculations(prodConnection, localConnection);
+
+    // Optimized count query for changes since last sync
+    const [countResult] = await prodConnection.query(`
+      SELECT COUNT(*) as total
+      FROM products p
+      WHERE p.stamp > ?
+      OR EXISTS (
+        SELECT 1 FROM product_last_sold pls 
+        WHERE p.pid = pls.pid 
+        AND pls.date_sold > ?
+      )
+      OR p.date_created > ?
+      OR p.datein > ?
+    `, [lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime]);
+
+    const totalProducts = countResult[0].total;
+
+    // Main product query using materialized data - modified for incremental
+    outputProgress({
+      status: "running",
+      operation: "Products import",
+      message: "Fetching product data from production"
+    });
+
+    // Create temporary table for production data
+    await localConnection.query(`
+      CREATE TEMPORARY TABLE temp_prod_data (
+        pid BIGINT NOT NULL,
+        title VARCHAR(255),
+        description TEXT,
+        SKU VARCHAR(50),
+        date_created TIMESTAMP NULL,
+        first_received TIMESTAMP NULL,
+        location VARCHAR(50),
+        barcode VARCHAR(50),
+        harmonized_tariff_code VARCHAR(20),
+        updated_at TIMESTAMP,
+        visible BOOLEAN,
+        replenishable BOOLEAN,
+        vendor VARCHAR(100),
+        vendor_reference VARCHAR(100),
+        notions_reference VARCHAR(100),
+        brand VARCHAR(100),
+        line VARCHAR(100),
+        subline VARCHAR(100),
+        artist VARCHAR(100),
+        moq INT,
+        rating TINYINT UNSIGNED,
+        reviews INT UNSIGNED,
+        weight DECIMAL(10,3),
+        length DECIMAL(10,3),
+        width DECIMAL(10,3),
+        height DECIMAL(10,3),
+        total_sold INT UNSIGNED,
+        country_of_origin VARCHAR(5),
+        date_last_sold DATE,
+        category_ids TEXT,
+        PRIMARY KEY (pid)
+      ) ENGINE=InnoDB
+    `);
+
+    // Get data from production and insert into temp table
+    const [prodData] = await prodConnection.query(`
+      SELECT 
+        p.pid,
+        p.description AS title,
+        p.notes AS description,
+        p.itemnumber AS SKU,
+        p.date_created,
+        p.datein AS first_received,
+        p.location,
+        p.upc AS barcode,
+        p.harmonized_tariff_code,
+        p.stamp AS updated_at,
+        CASE WHEN si.show + si.buyable > 0 THEN 1 ELSE 0 END AS visible,
+        CASE WHEN p.reorder >= 0 THEN 1 ELSE 0 END AS replenishable,
+        s.companyname AS vendor,
+        CASE WHEN s.companyname = 'Notions' 
+          THEN sid.notions_itemnumber 
+          ELSE sid.supplier_itemnumber 
+        END AS vendor_reference,
+        sid.notions_itemnumber AS notions_reference,
+        pc1.name AS brand,
+        pc2.name AS line,
+        pc3.name AS subline,
+        pc4.name AS artist,
+        COALESCE(CASE 
+          WHEN sid.supplier_id = 92 THEN sid.notions_qty_per_unit
+          ELSE sid.supplier_qty_per_unit
+        END, sid.notions_qty_per_unit) AS moq,
+        p.rating,
+        p.rating_votes AS reviews,
+        p.weight,
+        p.length,
+        p.width,
+        p.height,
+        p.totalsold AS total_sold,
+        p.country_of_origin,
+        pls.date_sold as date_last_sold,
+        GROUP_CONCAT(DISTINCT pci.cat_id) as category_ids
+      FROM products p
+        LEFT JOIN shop_inventory si ON p.pid = si.pid AND si.store = 0
+        LEFT JOIN supplier_item_data sid ON p.pid = sid.pid
+        LEFT JOIN suppliers s ON sid.supplier_id = s.supplierid
+        LEFT JOIN product_category_index pci ON p.pid = pci.pid
+        LEFT JOIN product_categories pc1 ON p.company = pc1.cat_id
+        LEFT JOIN product_categories pc2 ON p.line = pc2.cat_id
+        LEFT JOIN product_categories pc3 ON p.subline = pc3.cat_id
+        LEFT JOIN product_categories pc4 ON p.artist = pc4.cat_id
+        LEFT JOIN product_last_sold pls ON p.pid = pls.pid
+      WHERE p.stamp > ?
+        OR pls.date_sold > ?
+        OR p.date_created > ?
+        OR p.datein > ?
+      GROUP BY p.pid
+    `, [lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime]);
+
+    // Insert production data in batches
+    for (let i = 0; i < prodData.length; i += 1000) {
+      const batch = prodData.slice(i, i + 1000);
+      const placeholders = batch.map(() => "(?)").join(",");
+      
+      await localConnection.query(`
+        INSERT INTO temp_prod_data VALUES ${placeholders}
+      `, batch.map(row => Object.values(row)));
+
+      outputProgress({
+        status: "running",
+        operation: "Products import",
+        message: `Loaded ${Math.min(i + 1000, prodData.length)} of ${prodData.length} products from production`,
+        current: i + batch.length,
+        total: prodData.length
+      });
+    }
+
+    // Now join with local temp tables
+    const [rows] = await localConnection.query(`
+      SELECT 
+        p.*,
+        COALESCE(tis.stock_quantity, 0) as stock_quantity,
+        COALESCE(tis.preorder_count, 0) as preorder_count,
+        COALESCE(tis.notions_inv_count, 0) as notions_inv_count,
+        COALESCE(tpp.price, 0) as price,
+        COALESCE(tpp.regular_price, 0) as regular_price,
+        COALESCE(tpp.cost_price, 0) as cost_price
+      FROM temp_prod_data p
+      LEFT JOIN temp_inventory_status tis ON p.pid = tis.pid
+      LEFT JOIN temp_product_prices tpp ON p.pid = tpp.pid
+    `);
+
+    // Drop the temporary production data table
+    await localConnection.query("DROP TEMPORARY TABLE IF EXISTS temp_prod_data");
+
+    // Process products in batches
+    const BATCH_SIZE = 1000;
+    let processed = 0;
+    for (let i = 0; i < rows.length; i += BATCH_SIZE) {
+      const batch = rows.slice(i, i + BATCH_SIZE);
+      
+      // Add image URLs
+      batch.forEach(row => {
+        const urls = getImageUrls(row.pid);
+        row.image = urls.image;
+        row.image_175 = urls.image_175;
+        row.image_full = urls.image_full;
+      });
+
+      // Prepare product values - now using columnNames from above
+      const productValues = batch.flatMap(row => 
+        columnNames.map(col => {
+          const val = row[col] ?? null;
+          if (col === "managing_stock") return 1;
+          if (typeof val === "number") return val || 0;
+          return val;
+        })
+      );
+
+      // MySQL 8.0 optimized insert
+      const placeholderGroup = `(${Array(columnNames.length).fill("?").join(",")})`;
+      const productPlaceholders = Array(batch.length).fill(placeholderGroup).join(",");
+      
+      const insertQuery = `
+        INSERT INTO products (${columnNames.join(",")})
+        VALUES ${productPlaceholders}
+        AS new_products
+        ON DUPLICATE KEY UPDATE
+          ${columnNames
+            .filter(col => col !== "pid")
+            .map(col => `${col} = new_products.${col}`)
+            .join(",")};
+      `;
+
+      await localConnection.query(insertQuery, productValues);
+
+      processed += batch.length;
+      outputProgress({
+        status: "running",
+        operation: "Products import",
+        message: `Processed ${processed} of ${rows.length} products`,
+        current: processed,
+        total: rows.length
+      });
+    }
+
+    // After successful import, update the sync status
+    await localConnection.query(`
+      INSERT INTO sync_status (table_name, last_sync_timestamp)
+      VALUES ('products', NOW())
+      ON DUPLICATE KEY UPDATE last_sync_timestamp = NOW()
+    `);
+
+    return {
+      status: "complete",
+      totalImported: rows.length,
+      incrementalUpdate: true,
+      lastSyncTime
+    };
+  } catch (error) {
+    throw error;
+  } finally {
+    // Cleanup temporary tables
+    await cleanupTemporaryTables(localConnection);
+  }
+}
+
+async function importMissingProducts(prodConnection, localConnection, missingPids) {
+  try {
+    // Setup temporary tables
+    await setupTemporaryTables(localConnection);
+    
+    // Materialize calculations for missing products
+    await localConnection.query(`
+      INSERT INTO temp_inventory_status
+      WITH product_stock AS (
+        SELECT oi.prod_pid,
+          SUM(oi.qty_ordered - oi.qty_placed) as pending_qty
+        FROM order_items oi
+        JOIN _order o ON oi.order_id = o.order_id
+        WHERE oi.prod_pid IN (?)
+        AND [rest of conditions]
+        GROUP BY oi.prod_pid
+      )
+      SELECT [same as above]
+      WHERE p.pid IN (?)
+    `, [missingPids, missingPids]);
+
     // First get the column names from the table structure
     const [columns] = await localConnection.query(`
       SELECT COLUMN_NAME 
@@ -216,30 +478,8 @@ async function importProducts(prodConnection, localConnection) {
 
     const columnNames = columns.map((col) => col.COLUMN_NAME);
 
-    // Get total count first for progress indication
+    // Get the missing products from production
-    outputProgress({
+    const [products] = await prodConnection.query(`
-      operation: "Starting products import - Getting total count",
-      status: "running",
-    });
-
-    const [countResult] = await prodConnection.query(`
-      SELECT COUNT(*) as total
-      FROM products p
-      LEFT JOIN product_last_sold pls ON p.pid = pls.pid
-      WHERE pls.date_sold >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
-        OR p.date_created >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
-        OR p.datein >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
-        OR pls.date_sold IS NULL
-    `);
-    const totalProducts = countResult[0].total;
-
-    outputProgress({
-      operation: `Starting products import - Fetching ${totalProducts} products from production`,
-      status: "running",
-    });
-
-    // Get products from production with optimized query
-    const [rows] = await prodConnection.query(`
       SELECT 
         p.pid,
         p.description AS title,
@@ -338,120 +578,73 @@ async function importProducts(prodConnection, localConnection) {
         WHERE active = 1
         GROUP BY pid
       ) pcp ON p.pid = pcp.pid
-      WHERE (pls.date_sold >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
+      WHERE p.pid IN (?)
-        OR p.date_created >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
-        OR p.datein >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
-        OR pls.date_sold IS NULL)
       GROUP BY p.pid
-    `);
+    `, [missingPids]);
 
-    let current = 0;
+    if (products.length > 0) {
-    const total = rows.length;
+      // Map values in the same order as columns
-    const BATCH_SIZE = 1000;
+      const productValues = products.flatMap(product => 
-
+        columnNames.map(col => {
-    // Process products in batches
+          const val = product[col] ?? null;
-    for (let i = 0; i < rows.length; i += BATCH_SIZE) {
-      let batch = rows.slice(i, i + BATCH_SIZE);
-
-      // Prepare product values and category relationships in parallel
-      const productValues = [];
-      const categoryRelationships = [];
-
-      batch.forEach((row) => {
-        // Map values in the same order as columns
-        const rowValues = columnNames.map((col) => {
-          const val = row[col] ?? null;
           if (col === "managing_stock") return 1;
           if (typeof val === "number") return val || 0;
           return val;
-        });
+        })
-        productValues.push(...rowValues);
+      );
 
-        // Add category relationships
+      // Generate placeholders for all products
-        if (row.category_ids) {
+      const placeholders = products
-          const catIds = row.category_ids
+        .map(() => `(${Array(columnNames.length).fill("?").join(",")})`)
-            .split(",")
-            .map((id) => id.trim())
-            .filter((id) => id)
-            .map(Number);
-          catIds.forEach((catId) => {
-            if (catId) categoryRelationships.push([catId, row.pid]);
-          });
-        }
-      });
-
-      // Generate placeholders based on column count
-      const placeholderGroup = `(${Array(columnNames.length)
-        .fill("?")
-        .join(",")})`;
-      const productPlaceholders = Array(batch.length)
-        .fill(placeholderGroup)
         .join(",");
 
-      // Build the query dynamically
+      // Build and execute the query
-      const insertQuery = `
+      const query = `
         INSERT INTO products (${columnNames.join(",")})
-        VALUES ${productPlaceholders}
+        VALUES ${placeholders}
         ON DUPLICATE KEY UPDATE ${columnNames
           .filter((col) => col !== "pid")
           .map((col) => `${col} = VALUES(${col})`)
           .join(",")}
       `;
 
-      // First insert the products and wait for it to complete
+      await localConnection.query(query, productValues);
-      await localConnection.query(insertQuery, productValues);
+
+      // Verify products were inserted before proceeding with categories
+      const [insertedProducts] = await localConnection.query(
+        "SELECT pid FROM products WHERE pid IN (?)",
+        [products.map(p => p.pid)]
+      );
+      const insertedPids = new Set(insertedProducts.map(p => p.pid));
+
+      // Handle category relationships if any
+      const categoryRelationships = [];
+      products.forEach(product => {
+        // Only add category relationships for products that were successfully inserted
+        if (insertedPids.has(product.pid) && product.category_ids) {
+          const catIds = product.category_ids
+            .split(",")
+            .map(id => id.trim())
+            .filter(id => id)
+            .map(Number);
+          catIds.forEach(catId => {
+            if (catId) categoryRelationships.push([catId, product.pid]);
+          });
+        }
+      });
 
-      // Now that products are inserted, handle category relationships
       if (categoryRelationships.length > 0) {
-        // Get unique category IDs to verify they exist
+        // Verify categories exist before inserting relationships
-        const uniqueCatIds = [
+        const uniqueCatIds = [...new Set(categoryRelationships.map(([catId]) => catId))];
-          ...new Set(categoryRelationships.map(([catId]) => catId)),
-        ];
-
-        // Check which categories exist
         const [existingCats] = await localConnection.query(
           "SELECT cat_id FROM categories WHERE cat_id IN (?)",
           [uniqueCatIds]
         );
-        const existingCatIds = new Set(existingCats.map((c) => c.cat_id));
+        const existingCatIds = new Set(existingCats.map(c => c.cat_id));
 
-        // Log missing categories
+        // Filter relationships to only include existing categories
-        const missingCatIds = uniqueCatIds.filter(
+        const validRelationships = categoryRelationships.filter(([catId]) => 
-          (id) => !existingCatIds.has(id)
+          existingCatIds.has(catId)
-        );
-        if (missingCatIds.length > 0) {
-          console.error("Missing categories:", missingCatIds);
-
-          // Query production to see what these categories are
-          const [missingCats] = await prodConnection.query(
-            `
-            SELECT cat_id, name, type, master_cat_id, hidden
-            FROM product_categories 
-            WHERE cat_id IN (?)
-          `,
-            [missingCatIds]
-          );
-
-          console.error("Missing category details:", missingCats);
-          console.warn(
-            "Skipping invalid category relationships - continuing with import"
-          );
-          continue;
-        }
-
-        // Verify products exist before inserting relationships
-        const productIds = [
-          ...new Set(categoryRelationships.map(([_, pid]) => pid)),
-        ];
-        const [existingProducts] = await localConnection.query(
-          "SELECT pid FROM products WHERE pid IN (?)",
-          [productIds]
-        );
-        const existingProductIds = new Set(existingProducts.map((p) => p.pid));
-
-        // Filter relationships to only include existing products
-        const validRelationships = categoryRelationships.filter(([_, pid]) =>
-          existingProductIds.has(pid)
         );
 
         if (validRelationships.length > 0) {
@@ -460,49 +653,25 @@ async function importProducts(prodConnection, localConnection) {
             .join(",");
           await localConnection.query(
             `
-          INSERT INTO product_categories (cat_id, pid)
+            INSERT INTO product_categories (cat_id, pid)
-          VALUES ${catPlaceholders}
+            VALUES ${catPlaceholders}
-          ON DUPLICATE KEY UPDATE cat_id = VALUES(cat_id)
+            ON DUPLICATE KEY UPDATE cat_id = VALUES(cat_id)
-          `,
+            `,
             validRelationships.flat()
           );
         }
       }
-
-      current += batch.length;
-      outputProgress({
-        status: "running",
-        operation: "Products import",
-        current,
-        total,
-        elapsed: formatElapsedTime(startTime),
-        remaining: estimateRemaining(startTime, current, total),
-        rate: calculateRate(startTime, current)
-      });
     }
 
-    outputProgress({
-      status: "complete",
-      operation: "Products import completed",
-      current: total,
-      total,
-      duration: formatElapsedTime(Date.now() - startTime),
-    });
-
     return {
       status: "complete",
-      totalImported: total
+      totalImported: products.length
     };
   } catch (error) {
-    console.error("Error importing products:", error);
-    
-    outputProgress({
-      status: "error",
-      operation: "Products import failed",
-      error: error.message
-    });
-
     throw error;
+  } finally {
+    // Cleanup temporary tables
+    await cleanupTemporaryTables(localConnection);
   }
 }
 

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

@@ -1,14 +1,37 @@
 const { outputProgress, formatElapsedTime, estimateRemaining, calculateRate } = require('../metrics/utils/progress');
 
 async function importPurchaseOrders(prodConnection, localConnection) {
-  outputProgress({
-    operation: "Starting purchase orders import - Initializing",
-    status: "running",
-  });
-
   const startTime = Date.now();
+  let importHistoryId;
 
   try {
+    // Get last sync info
+    const [syncInfo] = await localConnection.query(
+      "SELECT last_sync_timestamp FROM sync_status WHERE table_name = 'purchase_orders'"
+    );
+    const lastSyncTime = syncInfo?.[0]?.last_sync_timestamp || '1970-01-01';
+
+    // Create import history record
+    const [historyResult] = await localConnection.query(`
+      INSERT INTO import_history (
+        table_name, 
+        start_time, 
+        is_incremental,
+        status
+      ) VALUES (
+        'purchase_orders',
+        NOW(),
+        ?,
+        'running'
+      )
+    `, [!!syncInfo?.[0]]);
+    importHistoryId = historyResult.insertId;
+
+    outputProgress({
+      operation: "Starting purchase orders import - Initializing",
+      status: "running",
+    });
+
     // Get column names for the insert
     const [columns] = await localConnection.query(`
       SELECT COLUMN_NAME 
@@ -20,7 +43,7 @@ async function importPurchaseOrders(prodConnection, localConnection) {
       .map((col) => col.COLUMN_NAME)
       .filter((name) => name !== "id");
 
-    // First get all relevant PO IDs with basic info - this is much faster than the full join
+    // First get all relevant PO IDs with basic info - modified for incremental
     const [[{ total }]] = await prodConnection.query(`
       SELECT COUNT(*) as total
       FROM (
@@ -29,14 +52,17 @@ async function importPurchaseOrders(prodConnection, localConnection) {
         FORCE INDEX (idx_date_created)
         JOIN po_products pop ON p.po_id = pop.po_id
         JOIN suppliers s ON p.supplier_id = s.supplierid
-        WHERE p.date_ordered >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
+        WHERE p.date_ordered > ? 
+          OR p.stamp > ?
+          OR p.date_modified > ?
         UNION
         SELECT DISTINCT r.receiving_id as po_id, rp.pid
         FROM receivings_products rp
         LEFT JOIN receivings r ON r.receiving_id = rp.receiving_id
-        WHERE rp.received_date >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
+        WHERE rp.received_date > ?
+          OR rp.stamp > ?
       ) all_items
-    `);
+    `, [lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime]);
 
     const [poList] = await prodConnection.query(`
       SELECT DISTINCT 
@@ -53,22 +79,27 @@ async function importPurchaseOrders(prodConnection, localConnection) {
         COALESCE(p.notes, '') as long_note
       FROM (
         SELECT po_id FROM po 
-        WHERE date_ordered >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
+        WHERE date_ordered > ?
+          OR stamp > ?
+          OR date_modified > ?
         UNION
         SELECT DISTINCT r.receiving_id as po_id
         FROM receivings r
         JOIN receivings_products rp ON r.receiving_id = rp.receiving_id
-        WHERE rp.received_date >= DATE_SUB(CURRENT_DATE, INTERVAL 2 YEAR)
+        WHERE rp.received_date > ?
+          OR rp.stamp > ?
       ) ids
       LEFT JOIN po p ON ids.po_id = p.po_id
       LEFT JOIN suppliers s1 ON p.supplier_id = s1.supplierid
       LEFT JOIN receivings r ON ids.po_id = r.receiving_id
       LEFT JOIN suppliers s2 ON r.supplier_id = s2.supplierid
       ORDER BY po_id
-    `);
+    `, [lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime, lastSyncTime]);
 
     const totalItems = total;
     let processed = 0;
+    let recordsAdded = 0;
+    let recordsUpdated = 0;
 
     const BATCH_SIZE = 5000;
     const PROGRESS_INTERVAL = 500;
@@ -249,7 +280,9 @@ async function importPurchaseOrders(prodConnection, localConnection) {
               .join(",")};
           `;
 
-          await localConnection.query(query, values.flat());
+          const result = await localConnection.query(query, values.flat());
+          recordsAdded += result.affectedRows - result.changedRows;
+          recordsUpdated += result.changedRows;
         }
 
         processed += batchProcessed;
@@ -271,19 +304,56 @@ async function importPurchaseOrders(prodConnection, localConnection) {
       }
     }
 
-    outputProgress({
+    // After successful import, update sync status
-      status: "complete",
+    await localConnection.query(`
-      operation: "Purchase orders import completed",
+      INSERT INTO sync_status (table_name, last_sync_timestamp)
-      current: totalItems,
+      VALUES ('purchase_orders', NOW())
-      total: totalItems,
+      ON DUPLICATE KEY UPDATE last_sync_timestamp = NOW()
-      duration: formatElapsedTime((Date.now() - startTime) / 1000),
+    `);
-    });
+
+    // Update import history with final stats
+    const endTime = Date.now();
+    const durationSeconds = Math.round((endTime - startTime) / 1000);
+    
+    await localConnection.query(`
+      UPDATE import_history 
+      SET 
+        end_time = NOW(),
+        duration_seconds = ?,
+        records_added = ?,
+        records_updated = ?,
+        status = 'completed',
+        additional_info = JSON_OBJECT(
+          'total_processed', ?,
+          'last_sync_time', ?,
+          'next_sync_time', NOW()
+        )
+      WHERE id = ?
+    `, [durationSeconds, recordsAdded, recordsUpdated, totalItems, lastSyncTime, importHistoryId]);
 
     return {
       status: "complete",
-      totalImported: totalItems
+      totalImported: totalItems,
+      recordsAdded,
+      recordsUpdated,
+      durationSeconds,
+      incrementalUpdate: !!syncInfo?.[0]
     };
+
   } catch (error) {
+    // Update import history with error
+    if (importHistoryId) {
+      await localConnection.query(`
+        UPDATE import_history 
+        SET 
+          end_time = NOW(),
+          duration_seconds = ?,
+          status = 'failed',
+          error_message = ?
+        WHERE id = ?
+      `, [Math.round((Date.now() - startTime) / 1000), error.message, importHistoryId]);
+    }
+    
     outputProgress({
       operation: "Purchase orders import failed",
       status: "error",

inventory-server/scripts/reset-db.js

@@ -156,7 +156,7 @@ async function resetDatabase() {
             SELECT GROUP_CONCAT(table_name) as tables 
             FROM information_schema.tables 
             WHERE table_schema = DATABASE()
-            AND table_name != 'users'
+            AND table_name NOT IN ('users', 'import_history')
         `);
 
         if (!tables[0].tables) {

inventory/src/components/settings/DataManagement.tsx

@@ -13,7 +13,7 @@ import {
   AlertDialogTitle,
   AlertDialogTrigger,
 } from "@/components/ui/alert-dialog";
-import { Loader2, RefreshCw, Upload, X, Database } from "lucide-react";
+import { Loader2, RefreshCw, X, Database } from "lucide-react";
 import config from '../../config';
 import { toast } from "sonner";
 
@@ -36,11 +36,6 @@ interface ImportProgress {
   duration?: string;
 }
 
-interface ImportLimits {
-  products: number;
-  orders: number;
-  purchaseOrders: number;
-}
 
 export function DataManagement() {
   const [isImportingProd, setIsImportingProd] = useState(false);