Reports

app/assets/utils/classes/ReportManager.php

@@ -1250,4 +1250,183 @@ class ReportManager
         $sth->execute([':company_id' => $this->companyId]);
         return $sth->fetch(PDO::FETCH_ASSOC) ?: [];
     }
+
+    /**
+     * Return paginated raw stock movement transactions from td_stock_<warehouse>
+     * within a date range (by month), with a balance brought forward.
+     *
+     * Each row is one individual transaction — no grouping. Full datetime is
+     * returned as stored in the td_stock_* table.
+     *
+     * Brought-forward balance is sourced from warehouse_balance for all months
+     * strictly before from_month, giving the cumulative net before the range.
+     *
+     * Used by reports/stock_movement.php.
+     *
+     * @param int    $warehouse_id  Warehouse to scope the report to.
+     * @param string $from_month    Start of range in YYYY-MM format (inclusive).
+     * @param string $to_month      End of range in YYYY-MM format (inclusive).
+     * @param int    $page          Current page number (1-based).
+     * @param int    $per_page      Rows per page (default 20).
+     * @return array  Keys: rows (array), total_rows (int), brought_forward (float).
+     */
+    /**
+     * Return summary stats + ordered SKU list for the stock movement report.
+     *
+     * Called once when the user clicks Search. Returns:
+     *   - stats tile values (total_transactions, total_in, total_out, net)
+     *   - ordered list of distinct product_skus present in the date range,
+     *     used by the client to drive lazy-load requests one SKU at a time.
+     *
+     * @param int    $warehouse_id
+     * @param string $from_month   YYYY-MM inclusive start
+     * @param string $to_month     YYYY-MM inclusive end
+     * @return array  Keys: skus (string[]), total_transactions, total_in, total_out, net
+     */
+    public function getStockMovementSummary(
+        int    $warehouse_id,
+        string $from_month,
+        string $to_month
+    ): array {
+        $table     = $this->resolveWarehouseTable($warehouse_id);
+        if (!$table) return ['skus' => [], 'total_transactions' => 0, 'total_in' => 0, 'total_out' => 0, 'net' => 0];
+
+        $date_from = $from_month . '-01 00:00:00';
+        $date_to   = date('Y-m-t 23:59:59', strtotime($to_month . '-01'));
+
+        // Ordered distinct SKUs in the range — drives lazy-load sequence
+        $sth = $this->pdo->prepare(
+            "SELECT DISTINCT product_sku
+             FROM `{$table}`
+             WHERE company_id = :company_id
+               AND date BETWEEN :date_from AND :date_to
+             ORDER BY product_sku ASC"
+        );
+        $sth->execute([':company_id' => $this->companyId, ':date_from' => $date_from, ':date_to' => $date_to]);
+        $skus = $sth->fetchAll(PDO::FETCH_COLUMN);
+
+        // Summary stats across full range
+        $sth = $this->pdo->prepare(
+            "SELECT
+                COUNT(*)                           AS total_transactions,
+                ROUND(SUM(COALESCE(`in`,  0)), 2) AS total_in,
+                ROUND(SUM(COALESCE(`out`, 0)), 2) AS total_out
+             FROM `{$table}`
+             WHERE company_id = :company_id
+               AND date BETWEEN :date_from AND :date_to"
+        );
+        $sth->execute([':company_id' => $this->companyId, ':date_from' => $date_from, ':date_to' => $date_to]);
+        $stats = $sth->fetch(PDO::FETCH_ASSOC);
+
+        return [
+            'skus'               => $skus,
+            'total_transactions' => (int)   ($stats['total_transactions'] ?? 0),
+            'total_in'           => (float) ($stats['total_in']           ?? 0),
+            'total_out'          => (float) ($stats['total_out']          ?? 0),
+            'net'                => round(($stats['total_in'] ?? 0) - ($stats['total_out'] ?? 0), 2),
+        ];
+    }
+
+    /**
+     * Return all transactions for a single product_sku within the date range,
+     * with a brought-forward balance and a running total column.
+     *
+     * Called once per SKU by the lazy-load scroll handler.
+     *
+     * Brought-forward: sum of (in - out) for this SKU in this warehouse
+     * for all months strictly before from_month.
+     *
+     * Running total: cumulative (brought_forward + in - out) across rows,
+     * computed in PHP after the DB fetch so no window function is needed.
+     *
+     * @param int    $warehouse_id
+     * @param string $product_sku
+     * @param string $from_month   YYYY-MM inclusive start
+     * @param string $to_month     YYYY-MM inclusive end
+     * @return array  Keys: sku, product_name, brought_forward (array with in/out/balance),
+     *                      rows (each row has running_total appended)
+     */
+    public function getStockMovementBySku(
+        int    $warehouse_id,
+        string $product_sku,
+        string $from_month,
+        string $to_month
+    ): array {
+        $table     = $this->resolveWarehouseTable($warehouse_id);
+        if (!$table) return ['sku' => $product_sku, 'rows' => [], 'brought_forward' => []];
+
+        $date_from = $from_month . '-01 00:00:00';
+        $date_to   = date('Y-m-t 23:59:59', strtotime($to_month . '-01'));
+
+        // Brought-forward: all transactions for this SKU before the range
+        $sth = $this->pdo->prepare(
+            "SELECT
+                ROUND(COALESCE(SUM(COALESCE(`in`,  0)), 0), 2) AS bf_in,
+                ROUND(COALESCE(SUM(COALESCE(`out`, 0)), 0), 2) AS bf_out
+             FROM `{$table}`
+             WHERE company_id = :company_id
+               AND product_sku = :sku
+               AND date < :date_from"
+        );
+        $sth->execute([':company_id' => $this->companyId, ':sku' => $product_sku, ':date_from' => $date_from]);
+        $bf      = $sth->fetch(PDO::FETCH_ASSOC);
+        $bf_in   = (float)($bf['bf_in']  ?? 0);
+        $bf_out  = (float)($bf['bf_out'] ?? 0);
+        $bf_bal  = round($bf_in - $bf_out, 2);
+
+        // Product name
+        $sth = $this->pdo->prepare(
+            "SELECT product_name FROM md_product
+             WHERE company_id = :company_id AND sku = :sku LIMIT 1"
+        );
+        $sth->execute([':company_id' => $this->companyId, ':sku' => $product_sku]);
+        $product_name = $sth->fetchColumn() ?: $product_sku;
+
+        // All transactions for this SKU in range, sorted by date then id
+        $sth = $this->pdo->prepare(
+            "SELECT
+                s.id,
+                s.date,
+                s.type,
+                s.product_sku,
+                s.lot_number,
+                s.serial_number,
+                s.zone,
+                s.aisle,
+                s.rack,
+                ROUND(COALESCE(s.`in`,  0), 2) AS stock_in,
+                ROUND(COALESCE(s.`out`, 0), 2) AS stock_out,
+                c.contact_name,
+                s.description
+             FROM `{$table}` s
+             LEFT JOIN md_contact c
+                 ON  c.company_id = s.company_id
+                 AND c.id         = s.contact_id
+             WHERE s.company_id  = :company_id
+               AND s.product_sku = :sku
+               AND s.date BETWEEN :date_from AND :date_to
+             ORDER BY s.date ASC, s.id ASC"
+        );
+        $sth->execute([':company_id' => $this->companyId, ':sku' => $product_sku, ':date_from' => $date_from, ':date_to' => $date_to]);
+        $rows = $sth->fetchAll(PDO::FETCH_ASSOC);
+
+        // Append running_total to each row (carried forward from brought-forward balance)
+        $running = $bf_bal;
+        foreach ($rows as &$row) {
+            $running           += (float)$row['stock_in'] - (float)$row['stock_out'];
+            $row['running_total'] = round($running, 2);
+        }
+        unset($row);
+
+        return [
+            'sku'          => $product_sku,
+            'product_name' => $product_name,
+            'brought_forward' => [
+                'in'      => $bf_in,
+                'out'     => $bf_out,
+                'balance' => $bf_bal,
+            ],
+            'rows' => $rows,
+        ];
+    }
 }

app/assets/utils/classes/StockManager.php

@@ -254,14 +254,15 @@ class StockManager {
      */
     public function saveStockIn(array $data, array $logging, string $uuid): void
     {
-        $id           = (int)$data['id'];
+        $id           = (int)($data['id']        ?? 0);
-        $warehouse_id = (int)$data['warehouse'];
+        $warehouse_id = (int)($data['warehouse'] ?? 0);
         $whMgmt       = new WarehouseManager($this->pdo, $this->company_id);
 
         $ctx       = $whMgmt->getStockContext($warehouse_id, $id);
         $row       = $ctx['row'] ?? [];
         $table     = $ctx['table'];
-        $table_log = json_decode($row['log'] ?? '[]', true) ?: [];
+        $raw_log   = $row['log'] ?? [];
+        $table_log = is_array($raw_log) ? $raw_log : (json_decode($raw_log, true) ?: []);
         $table_log[] = $logging;
 
         if ($id > 0) {
@@ -276,8 +277,8 @@ class StockManager {
             )->execute([
                 ':id'          => $id,
                 ':company_id'  => $this->company_id,
-                ':contact_id'  => (int)$data['contact_id'],
+                ':contact_id'  => (int)($data['contact_id'] ?? 0),
-                ':description' => $data['description'],
+                ':description' => $data['description'] ?? '',
                 ':log'         => json_encode($table_log),
             ]);
 
@@ -316,11 +317,11 @@ class StockManager {
                 ':zone'          => $data['zone'],
                 ':aisle'         => $data['aisle'],
                 ':rack'          => $data['rack'],
-                ':contact_id'    => (int)$data['contact_id'],
+                ':contact_id'    => (int)($data['contact_id'] ?? 0),
-                ':description'   => $data['description'],
+                ':description'   => $data['description'] ?? '',
                 ':log'           => json_encode($table_log),
                 ':lot_number'    => $lot_number,
-                ':serial_number' => $data['serial_number'] ?: null,
+                ':serial_number' => ($data['serial_number'] ?? null) ?: null,
             ]);
 
             $td_stock_id = (int)$this->pdo->lastInsertId();
@@ -366,14 +367,15 @@ class StockManager {
      */
     public function saveStockOut(array $data, array $logging, string $uuid): void
     {
-        $id           = (int)$data['id'];
+        $id           = (int)($data['id']        ?? 0);
-        $warehouse_id = (int)$data['warehouse'];
+        $warehouse_id = (int)($data['warehouse'] ?? 0);
         $whMgmt       = new WarehouseManager($this->pdo, $this->company_id);
 
         $ctx       = $whMgmt->getStockContext($warehouse_id, $id);
         $row       = $ctx['row'] ?? [];
         $table     = $ctx['table'];
-        $table_log = json_decode($row['log'] ?? '[]', true) ?: [];
+        $raw_log   = $row['log'] ?? [];
+        $table_log = is_array($raw_log) ? $raw_log : (json_decode($raw_log, true) ?: []);
         $table_log[] = $logging;
 
         if ($id > 0) {
@@ -388,8 +390,8 @@ class StockManager {
             )->execute([
                 ':id'          => $id,
                 ':company_id'  => $this->company_id,
-                ':contact_id'  => (int)$data['contact_id'],
+                ':contact_id'  => (int)($data['contact_id'] ?? 0),
-                ':description' => $data['description'],
+                ':description' => $data['description'] ?? '',
                 ':log'         => json_encode($table_log),
             ]);
 
@@ -447,8 +449,8 @@ class StockManager {
                 ':zone'          => $data['zone'],
                 ':aisle'         => $data['aisle'],
                 ':rack'          => $data['rack'],
-                ':contact_id'    => (int)$data['contact_id'],
+                ':contact_id'    => (int)($data['contact_id'] ?? 0),
-                ':description'   => $data['description'],
+                ':description'   => $data['description'] ?? '',
                 ':log'           => json_encode($table_log),
                 ':ref_id'        => $ref_id,
                 ':lot_number'    => $lot_number,
@@ -504,7 +506,7 @@ class StockManager {
         $whMgmt = new WarehouseManager($this->pdo, $this->company_id);
 
         $contact_id  = (int)($data['contact_id']  ?? 0);
-        $description =      ($data['description'] ?? '');
+        $description =      ($data['description'] ?? '' ?? '');
 
         if ($id > 0) {
 
@@ -527,9 +529,11 @@ class StockManager {
                 throw new Exception("Paired destination record missing — data integrity issue.");
             }
 
-            $from_log   = json_decode($from_row['log'] ?? '[]', true) ?: [];
+            $raw_from   = $from_row['log'] ?? [];
+            $from_log   = is_array($raw_from) ? $raw_from : (json_decode($raw_from, true) ?: []);
             $from_log[] = $logging;
-            $to_log     = json_decode($to_row['log']   ?? '[]', true) ?: [];
+            $raw_to     = $to_row['log'] ?? [];
+            $to_log     = is_array($raw_to) ? $raw_to : (json_decode($raw_to, true) ?: []);
             $to_log[]   = $logging;
 
             $this->pdo->prepare(

app/dbconn.php

@@ -34,9 +34,18 @@ class db_statement extends PDOStatement {
 		if (!is_array($args)) {
 			$args = func_get_args();
 		}else{
+			// Cast all values to string before XSS processing.
+			// json_decode requires a string — integers, booleans, and nulls
+			// passed as bound parameters would otherwise cause a TypeError.
+			// null is preserved as-is so PDO can bind NULL columns correctly.
+			$args = array_map(fn($v) => is_null($v) ? null : (string)$v, $args);
+
 			// escaping array
 			// prevent store XSS
 			foreach($args as &$item){
+
+				if (is_null($item)) continue;
+
 				// decode the JSON data
 				// set second parameter boolean TRUE for associative array output.
 				$result = json_decode($item);
@@ -45,6 +54,12 @@ class db_statement extends PDOStatement {
 					$tmp = json_decode($item,true);
 					foreach((array)$tmp as &$ii){
 
+						// Inner values may be arrays (nested JSON objects) — cast to string
+						if (!is_string($ii)) {
+							$ii = json_encode($ii);
+							continue;
+						}
+
 						$result = json_decode($ii);
 						if (json_last_error() === JSON_ERROR_NONE) {
 							// json inside json

app/include_sidebar.php

@@ -14,6 +14,7 @@
   </div>
 
   <ul class="nav flex-column">
+
     <!-- Main -->
     <li class="nav-text-space">
       <small class="nav-text text-muted">Main</small>
@@ -26,28 +27,14 @@
       </a>
     </li>
 
-    <li>
-      <a class="nav-link" href="<?php echo $server_url?>dashboard/occupy_rack.php">
-        <i class="ti ti-receipt"></i>
-        <span class="nav-text">Occupied Racks</span>
-      </a>
-    </li>
-
-    <li>
-      <a class="nav-link" href="<?php echo $server_url?>dashboard/product_lot.php">
-        <i class="ti ti-receipt"></i>
-        <span class="nav-text">Product Lots</span>
-      </a>
-    </li>
-
     <li>
       <a class="nav-link" href="<?php echo $server_url?>dashboard/low_stock_products.php">
         <i class="ti ti-alert-triangle"></i>
-        <span class="nav-text">Low Stock Products</span>
+        <span class="nav-text">Low Stock</span>
       </a>
     </li>
 
-    <!-- Product -->
+    <!-- Master Data -->
     <li class="nav-text-space">
       <small class="nav-text text-muted">Master Data</small>
     </li>
@@ -106,15 +93,40 @@
       </a>
     </li>
 
+    <!-- Reports -->
+    <li class="nav-text-space">
+      <small class="nav-text text-muted">Reports</small>
+    </li>
+
     <li>
-      <a class="nav-link" href="<?php echo $server_url?>ics/expired_stock.php">
+      <a class="nav-link" href="<?php echo $server_url?>reports/stock_movement.php">
+        <i class="ti ti-chart-bar"></i>
+        <span class="nav-text">Stock Movement</span>
+      </a>
+    </li>
+
+    <li>
+      <a class="nav-link" href="<?php echo $server_url?>reports/expired_stock.php">
         <i class="ti ti-clock"></i>
         <span class="nav-text">Expired Stock</span>
       </a>
     </li>
 
+    <li>
+      <a class="nav-link" href="<?php echo $server_url?>reports/occupy_rack.php">
+        <i class="ti ti-layout-grid"></i>
+        <span class="nav-text">Rack Occupancy</span>
+      </a>
+    </li>
 
+    <li>
+      <a class="nav-link" href="<?php echo $server_url?>reports/product_lot.php">
+        <i class="ti ti-packages"></i>
+        <span class="nav-text">Product Lots</span>
+      </a>
+    </li>
 
+    <li><br><br><br><br></li>
 
   </ul>
 </aside>

app/reports/api/engine_report/expired_stock.php

@@ -6,7 +6,9 @@
 
     $report = new ReportManager($pdo2, $company_id);
 
-    $items = $report->getExpiredStock();
+    $warehouse_id = (int)($data['warehouse_id'] ?? 0);
+
+    $items = $report->getExpiredStock($warehouse_id);
 
     $expired  = 0;
     $critical = 0;

app/reports/api/engine_report/stock_movement.php

@@ -0,0 +1,23 @@
+<?php
+    session_start();
+    require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/ReportManager.php';
+
+    $data         = json_decode($_POST['json'] ?? '{}', true) ?: [];
+    $warehouse_id = (int)($data['warehouse_id'] ?? 0);
+    $from_month   = $data['from_month'] ?? '';
+    $to_month     = $data['to_month']   ?? '';
+
+    if (!$warehouse_id || !$from_month || !$to_month) {
+        $answer['message'] = 'warehouse_id, from_month, and to_month are required.';
+        exit(json_encode($answer));
+    }
+
+    if ($from_month > $to_month) [$from_month, $to_month] = [$to_month, $from_month];
+
+    $report = new ReportManager($pdo2, $company_id);
+
+    $answer['output']  = $report->getStockMovementSummary($warehouse_id, $from_month, $to_month);
+    $answer['success'] = 1;
+    exit(json_encode($answer));
+?>

app/reports/api/engine_report/stock_movement_sku.php

@@ -0,0 +1,24 @@
+<?php
+    session_start();
+    require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/ReportManager.php';
+
+    $data         = json_decode($_POST['json'] ?? '{}', true) ?: [];
+    $warehouse_id = (int)($data['warehouse_id'] ?? 0);
+    $product_sku  = trim($data['product_sku']   ?? '');
+    $from_month   = $data['from_month'] ?? '';
+    $to_month     = $data['to_month']   ?? '';
+
+    if (!$warehouse_id || !$product_sku || !$from_month || !$to_month) {
+        $answer['message'] = 'warehouse_id, product_sku, from_month, and to_month are required.';
+        exit(json_encode($answer));
+    }
+
+    if ($from_month > $to_month) [$from_month, $to_month] = [$to_month, $from_month];
+
+    $report = new ReportManager($pdo2, $company_id);
+
+    $answer['output']  = $report->getStockMovementBySku($warehouse_id, $product_sku, $from_month, $to_month);
+    $answer['success'] = 1;
+    exit(json_encode($answer));
+?>

app/reports/expired_stock.php

@@ -202,9 +202,12 @@
     if (!warehouse_id) return;
 
     return ajax_request({
-      url: "<?php echo $server_url?>ics/api/engine_report/expired_stock.php",
+      url: "<?php echo $server_url?>reports/api/engine_report/expired_stock.php",
       autoPrepare: true,
       checkRequired: 0,
+      data: {
+        warehouse_id: warehouse_id
+      },
       action: 'read',
       debugMode: 0,
       onSuccess: function(res) {

app/reports/occupy_rack.php

@@ -272,7 +272,7 @@
   function retrieve_rack_occupancy() {
 
     return ajax_request({
-      url: "<?php echo $server_url?>dashboard/api/engine_report/rack_occupancy.php",
+      url: "<?php echo $server_url?>reports/api/engine_report/rack_occupancy.php",
       autoPrepare: true,
       checkRequired: 0,
       action: 'read',
@@ -476,7 +476,7 @@
     modal.show();
 
     ajax_request({
-      url: "<?php echo $server_url?>dashboard/api/engine_report/rack_log.php",
+      url: "<?php echo $server_url?>reports/api/engine_report/rack_log.php",
       autoPrepare: true,
       checkRequired: 0,
       action: 'read',

app/reports/product_lot.php

@@ -200,7 +200,7 @@
   function retrieve_product_lot() {
 
     return ajax_request({
-      url: "<?php echo $server_url?>dashboard/api/engine_report/product_lot.php",
+      url: "<?php echo $server_url?>reports/api/engine_report/product_lot.php",
       autoPrepare: true,
       checkRequired: 0,
       action: 'read',
@@ -324,7 +324,7 @@
     modal.show();
 
     ajax_request({
-      url: "<?php echo $server_url?>dashboard/api/engine_report/lot_stock_log.php",
+      url: "<?php echo $server_url?>reports/api/engine_report/lot_stock_log.php",
       autoPrepare: true,
       checkRequired: 0,
       action: 'read',

app/reports/stock_movement.php

@@ -0,0 +1,374 @@
+<?php
+    session_start();
+    require '../config.php';
+    require '../include_header.php';
+?>
+
+<body>
+  <?php require '../include_topbar.php';?>
+  <?php require '../include_sidebar.php';?>
+
+  <main id="content" class="content py-15">
+    <div class="container-fluid">
+
+      <!-- Page header -->
+      <div class="row mb-5">
+        <div class="col-12">
+          <div class="d-flex flex-wrap justify-content-between align-items-center gap-3">
+            <div>
+              <h1 class="fs-4 mb-0">Stock Movement</h1>
+            </div>
+            <div class="d-flex align-items-center gap-2 flex-nowrap">
+              <select id="warehouse" class="form-select form-select-sm" style="min-width:140px;max-width:180px;">
+                <option value="">Warehouse...</option>
+              </select>
+              <input type="month" id="from_month" class="form-control form-control-sm" style="width:150px;">
+              <span class="text-muted small text-nowrap">to</span>
+              <input type="month" id="to_month" class="form-control form-control-sm" style="width:150px;">
+              <button class="btn btn-primary btn-sm text-nowrap" onclick="do_search();">
+                <i class="ti ti-search"></i> Search
+              </button>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <!-- Summary stats -->
+      <div class="row mb-4 g-3">
+        <div class="col-xl-3 col-md-6 col-12">
+          <div class="card">
+            <div class="card-body p-4 d-flex align-items-center gap-3">
+              <span class="icon-shape icon-sm bg-primary text-white rounded-2">
+                <i class="ti ti-list fs-5"></i>
+              </span>
+              <div>
+                <div class="fs-3 fw-bold mb-0" id="stat_transactions">—</div>
+                <div class="text-muted small">Total Transactions</div>
+              </div>
+            </div>
+          </div>
+        </div>
+        <div class="col-xl-3 col-md-6 col-12">
+          <div class="card">
+            <div class="card-body p-4 d-flex align-items-center gap-3">
+              <span class="icon-shape icon-sm bg-success text-white rounded-2">
+                <i class="ti ti-package-import fs-5"></i>
+              </span>
+              <div>
+                <div class="fs-3 fw-bold mb-0 text-success" id="stat_in">—</div>
+                <div class="text-muted small">Total Stock In</div>
+              </div>
+            </div>
+          </div>
+        </div>
+        <div class="col-xl-3 col-md-6 col-12">
+          <div class="card">
+            <div class="card-body p-4 d-flex align-items-center gap-3">
+              <span class="icon-shape icon-sm bg-danger text-white rounded-2">
+                <i class="ti ti-package-export fs-5"></i>
+              </span>
+              <div>
+                <div class="fs-3 fw-bold mb-0 text-danger" id="stat_out">—</div>
+                <div class="text-muted small">Total Stock Out</div>
+              </div>
+            </div>
+          </div>
+        </div>
+        <div class="col-xl-3 col-md-6 col-12">
+          <div class="card">
+            <div class="card-body p-4 d-flex align-items-center gap-3">
+              <span class="icon-shape icon-sm bg-warning text-white rounded-2">
+                <i class="ti ti-arrows-diff fs-5"></i>
+              </span>
+              <div>
+                <div class="fs-3 fw-bold mb-0" id="stat_net">—</div>
+                <div class="text-muted small">Net Movement</div>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <!-- Table -->
+      <div class="row">
+        <div class="col-12">
+          <div class="card">
+            <div class="card-body p-5">
+
+              <div class="d-flex justify-content-between align-items-center mb-4">
+                <h2 class="fs-4 mb-0">Movement Detail</h2>
+                <span id="result_summary" class="text-muted small"></span>
+              </div>
+
+              <div class="table-responsive">
+                <table class="table mb-0 text-nowrap table-hover table-centered table-sm" id="tbl_movement">
+                  <thead class="table-light border-light">
+                    <tr>
+                      <th>Date</th>
+                      <th>Type</th>
+                      <th>SKU</th>
+                      <th>Lot</th>
+                      <th>Location</th>
+                      <th>Contact</th>
+                      <th class="text-end">Stock In</th>
+                      <th class="text-end">Stock Out</th>
+                      <th class="text-end">Running Total</th>
+                    </tr>
+                  </thead>
+                  <tbody id="tbl_body">
+                    <tr>
+                      <td colspan="9" class="text-center py-5 text-muted">
+                        Select a warehouse and date range, then click Search.
+                      </td>
+                    </tr>
+                  </tbody>
+                </table>
+              </div>
+
+              <!-- Lazy load sentinel + loader -->
+              <div id="lazy_sentinel" class="py-3 text-center text-muted small" style="display:none;">
+                <div id="lazy_loader"><i class="ti ti-loader-2 me-1"></i>Loading...</div>
+                <div id="lazy_done" style="display:none;">All products loaded.</div>
+              </div>
+
+            </div>
+          </div>
+        </div>
+      </div>
+
+    </div>
+  </main>
+
+  <?php require "../include_ending.php";?>
+
+  <script>
+  // ── State ─────────────────────────────────────────────────────────────
+  var sku_queue      = [];   // ordered list of SKUs returned by summary call
+  var sku_index      = 0;    // next SKU to load
+  var is_loading     = false;
+  var search_params  = {};   // warehouse_id, from_month, to_month — fixed per search
+
+  var type_badge = {
+    'in':       '<span class="badge bg-success">In</span>',
+    'out':      '<span class="badge bg-danger">Out</span>',
+    'transfer': '<span class="badge bg-info text-dark">Transfer</span>',
+  };
+
+  // ── Default months ────────────────────────────────────────────────────
+  (function() {
+    var now   = new Date();
+    var month = now.getFullYear() + '-' + String(now.getMonth() + 1).padStart(2, '0');
+    $('#from_month').val(month);
+    $('#to_month').val(month);
+  })();
+
+
+  // ── Warehouse dropdown ────────────────────────────────────────────────
+  function retrieve_warehouse() {
+    return ajax_request({
+      url: "<?php echo $server_url?>ics/api/engine/retrieve_warehouse.php",
+      autoPrepare: true, checkRequired: 0, action: 'read',
+      onSuccess: function(res) {
+        var options = '';
+        $.each(res.output, function(i, item) {
+          options += `<option value="${item.id}">${item.warehouse_name}</option>`;
+        });
+        $('#warehouse').html(options);
+        if (res.output && res.output.length > 0) {
+          $('#warehouse').val(res.output[0].id);
+          do_search();
+        }
+      }
+    });
+  }
+
+
+  // ── Search — fetch summary, reset state, start lazy load ─────────────
+  function do_search() {
+    var warehouse_id = $('#warehouse').val();
+    var from_month   = $('#from_month').val();
+    var to_month     = $('#to_month').val();
+    if (!warehouse_id || !from_month || !to_month) return;
+
+    // Reset state
+    sku_queue  = [];
+    sku_index  = 0;
+    is_loading = false;
+    search_params = { warehouse_id: warehouse_id, from_month: from_month, to_month: to_month };
+
+    // Reset UI
+    $('#tbl_body').html('<tr><td colspan="9" class="text-center py-4 text-muted">Loading…</td></tr>');
+    $('#lazy_sentinel').hide();
+    $('#lazy_done').hide();
+    $('#lazy_loader').show();
+    $('#result_summary').text('');
+
+    // Reset stats
+    $('#stat_transactions, #stat_in, #stat_out, #stat_net').text('—');
+
+    return ajax_request({
+      url: "<?php echo $server_url?>reports/api/engine_report/stock_movement.php",
+      autoPrepare: true, checkRequired: 0, action: 'read',
+      data: { warehouse_id: warehouse_id, from_month: from_month, to_month: to_month },
+      onSuccess: function(res) {
+        var d = res.output;
+
+        // Populate stats
+        $('#stat_transactions').text(d.total_transactions);
+        $('#stat_in').text(fmt(d.total_in));
+        $('#stat_out').text(fmt(d.total_out));
+        var net = d.net;
+        $('#stat_net')
+          .text((net >= 0 ? '+' : '') + fmt(net))
+          .removeClass('text-success text-danger')
+          .addClass(net >= 0 ? 'text-success' : 'text-danger');
+
+        if (!d.skus || d.skus.length === 0) {
+          $('#tbl_body').html('<tr><td colspan="9" class="text-center py-5 text-muted">No movement data found.</td></tr>');
+          return;
+        }
+
+        sku_queue = d.skus;
+        sku_index = 0;
+        $('#tbl_body').html('');
+        $('#result_summary').text(d.skus.length + ' product' + (d.skus.length > 1 ? 's' : ''));
+        $('#lazy_sentinel').show();
+
+        // Start loading — sentinel_is_visible() will keep pulling until window is filled
+        load_next_sku();
+      }
+    });
+  }
+
+
+  // ── Load one SKU group, then keep going if sentinel still visible ─────
+  function load_next_sku() {
+    if (is_loading || sku_index >= sku_queue.length) {
+      if (sku_index >= sku_queue.length) {
+        $('#lazy_loader').hide();
+        $('#lazy_done').show();
+      }
+      return;
+    }
+
+    is_loading = true;
+    var sku = sku_queue[sku_index];
+
+    return ajax_request({
+      url: "<?php echo $server_url?>reports/api/engine_report/stock_movement_sku.php",
+      autoPrepare: true, checkRequired: 0, action: 'read',
+      queueLock: false,
+      data: {
+        warehouse_id : search_params.warehouse_id,
+        product_sku  : sku,
+        from_month   : search_params.from_month,
+        to_month     : search_params.to_month,
+      },
+      onSuccess: function(res) {
+        append_sku_group(res.output);
+        sku_index++;
+        is_loading = false;
+
+        if (sku_index >= sku_queue.length) {
+          $('#lazy_loader').hide();
+          $('#lazy_done').show();
+          return;
+        }
+
+        // If sentinel is still within the viewport (or above it),
+        // the table hasn't filled the window yet — keep loading immediately.
+        if (sentinel_is_visible()) {
+          load_next_sku();
+        }
+      }
+    });
+  }
+
+
+  // ── Returns true if the sentinel is visible in the current viewport ───
+  function sentinel_is_visible() {
+    var el   = document.getElementById('lazy_sentinel');
+    var rect = el.getBoundingClientRect();
+    return rect.top <= (window.innerHeight || document.documentElement.clientHeight);
+  }
+
+
+  // ── Render one SKU group into the table ───────────────────────────────
+  function append_sku_group(d) {
+    var bf = d.brought_forward;
+    var rows = d.rows;
+
+    // SKU header row
+    var header = `<tr class="table-secondary">
+      <td colspan="9" class="py-2 fw-semibold">
+        <code>${d.sku}</code>
+        <span class="text-muted fw-normal ms-2">${d.product_name}</span>
+      </td>
+    </tr>`;
+
+    // Brought-forward row
+    var bf_in_val  = bf.in  > 0 ? fmt(bf.in)  : '<span class="text-muted">—</span>';
+    var bf_out_val = bf.out > 0 ? fmt(bf.out) : '<span class="text-muted">—</span>';
+    var bf_bal_cls = bf.balance >= 0 ? 'text-success' : 'text-danger';
+    var bf_row = `<tr class="table-light text-muted fst-italic">
+      <td class="py-2" colspan="6">Brought Forward</td>
+      <td class="py-2 text-end text-success">${bf_in_val}</td>
+      <td class="py-2 text-end text-danger">${bf_out_val}</td>
+      <td class="py-2 text-end fw-semibold ${bf_bal_cls}">${fmt(bf.balance)}</td>
+    </tr>`;
+
+    // Transaction rows
+    var body = '';
+    if (rows.length === 0) {
+      body = `<tr>
+        <td colspan="9" class="text-center py-2 text-muted fst-italic">No transactions in range.</td>
+      </tr>`;
+    } else {
+      $.each(rows, function(i, row) {
+        var in_val  = row.stock_in  > 0 ? fmt(row.stock_in)  : '<span class="text-muted">—</span>';
+        var out_val = row.stock_out > 0 ? fmt(row.stock_out) : '<span class="text-muted">—</span>';
+        var rt_cls  = row.running_total >= 0 ? 'text-success' : 'text-danger';
+        body += `<tr>
+          <td class="py-2">${row.date}</td>
+          <td class="py-2">${type_badge[row.type] || row.type}</td>
+          <td class="py-2"><code>${row.product_sku}</code></td>
+          <td class="py-2">${row.lot_number || '<span class="text-muted">—</span>'}</td>
+          <td class="py-2">${row.zone}-${row.aisle}-${row.rack}</td>
+          <td class="py-2">${row.contact_name || '<span class="text-muted">—</span>'}</td>
+          <td class="py-2 text-end text-success">${in_val}</td>
+          <td class="py-2 text-end text-danger">${out_val}</td>
+          <td class="py-2 text-end fw-semibold ${rt_cls}">${fmt(row.running_total)}</td>
+        </tr>`;
+      });
+    }
+
+    $('#tbl_body').append(header + bf_row + body);
+  }
+
+
+  // ── Intersection Observer for lazy load ───────────────────────────────
+  var observer = new IntersectionObserver(function(entries) {
+    if (entries[0].isIntersecting && !is_loading && sku_index < sku_queue.length) {
+      load_next_sku();
+    }
+  }, { rootMargin: '200px' });
+
+  observer.observe(document.getElementById('lazy_sentinel'));
+
+
+  // ── Helpers ───────────────────────────────────────────────────────────
+  function fmt(n) {
+    return parseFloat(n || 0).toLocaleString(undefined, {
+      minimumFractionDigits: 2, maximumFractionDigits: 2
+    });
+  }
+
+
+  // ── Boot ──────────────────────────────────────────────────────────────
+  $(async function() {
+    try { await retrieve_warehouse(); } catch(e) { console.log(e); }
+  });
+  </script>
+
+</body>
+</html>