[OOP] contact,inventory,ics,dashboard

app/ics/api/engine/contact_search.php

@@ -1,25 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/ContactManager.php';
 
-    $sql = "SELECT *
-            FROM md_contact
-            WHERE 
-              company_id = :company_id and 
-              contact_name like :keyword
-            LIMIT 50
-            ";
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":keyword" => '%'.$data["keyword"].'%'
-    ]);
-    db_check($sth, $answer);
-
-    $result = $sth->fetchAll(PDO::FETCH_ASSOC);
-    $answer["result"] = $result;
-    $answer["success"] = 1;
+    $contact = new ContactManager($pdo2, $company_id);
+    $answer['result']  = $contact->searchContact($data['keyword'] ?? '');
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine/manage_stock_in.php

@@ -1,122 +1,25 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/StockManager.php';
     require '../../../assets/utils/classes/WarehouseManager.php';
 
     try {
-        
-        dbTransaction($pdo2, function($pdo) use ($data, $company_id, $logging, $uuid, &$answer) {
-
-            $id = (int)$data['id'];
-            $warehouse_id = (int)$data["warehouse"];
-            $whMgmt = new WarehouseManager($pdo, $company_id);
-
-            $warehouse = $whMgmt->getStockContext($warehouse_id, $id);
-            $row   = $warehouse['row'] ?? [];
-            $table = $warehouse['table'];
-
-            // Append this edit/create event to td_stock_<wh>.log (stock record history)
-            $table_log = json_decode($row['log'] ?? '[]', true);
-            $table_log[] = $logging;
-
-            if ($id > 0) {
-
-                // UPDATE existing stock_in record
-                $sql = "UPDATE `$table` SET
-                            `contact_id`  = :contact_id,
-                            `description` = :description,
-                            `log`         = :log
-                        WHERE id = :id AND company_id = :company_id";
-
-                $sth = $pdo->prepare($sql);
-                $sth->execute([
-                    ":id"          => $id,
-                    ":company_id"  => $company_id,
-                    ":contact_id"  => (int)$data["contact_id"],
-                    ":description" => $data["description"],
-                    ":log"         => json_encode($table_log),
-                ]);
-
-
-
-            } else {
-
-                // Upsert md_lot if lot_number + expiry_date provided
-                $lot_number  = $data["lot_number"]  ?: null;
-                $expiry_date = $data["expiry_date"] ?: null;
-
-                if ($lot_number && $expiry_date) {
-                    $sth = $pdo->prepare("
-                        INSERT INTO md_lot (company_id, product_sku, lot_number, expiry_date)
-                        VALUES (:company_id, :product_sku, :lot_number, :expiry_date)
-                        ON DUPLICATE KEY UPDATE expiry_date = expiry_date
-                    ");
-                    $sth->execute([
-                        ":company_id"  => $company_id,
-                        ":product_sku" => $data["product_sku"],
-                        ":lot_number"  => $lot_number,
-                        ":expiry_date" => $expiry_date,
-                    ]);
-                }
-
-                // INSERT new stock_in record
-                $sql = "INSERT INTO `$table` 
-                        (uuid, company_id, `date`, product_sku, `in`, zone, aisle, rack, contact_id, `description`, `log`, `type`, `lot_number`, `serial_number`) 
-                        VALUES 
-                        (:uuid, :company_id, :date, :product_sku, :quantity, :zone, :aisle, :rack, :contact_id, :description, :log, 'in', :lot_number, :serial_number)";
-
-                $sth = $pdo->prepare($sql);
-                $sth->execute([
-                    ":uuid"          => $uuid,
-                    ":company_id"    => $company_id,
-                    ":date"          => date('Y-m-d H:i:s'),
-                    ":product_sku"   => $data["product_sku"],
-                    ":quantity"      => $data["quantity"],
-                    ":zone"          => $data["zone"],
-                    ":aisle"         => $data["aisle"],
-                    ":rack"          => $data["rack"],
-                    ":contact_id"    => (int)$data["contact_id"],
-                    ":description"   => $data["description"],
-                    ":log"           => json_encode($table_log),
-                    ":lot_number"    => $lot_number,
-                    ":serial_number" => $data["serial_number"] ?: null,
-                ]);
-
-                // Grab the newly-generated ID to link the rack
-                $td_stock_id = (int) $pdo->lastInsertId();
-
-                // Link the rack to this new stock record
-                $whMgmt->occupyRack(
-                    $warehouse_id,
-                    $data['zone'], $data['aisle'], $data['rack'],
-                    $data['product_sku'],
-                    $td_stock_id
-                );
-                // Balance adjustment handles both INSERT (delta = full qty) 
-                // and UPDATE (delta = new - old) via the same formula.
-                $whMgmt->adjustBalance(
-                    'in', 
-                    $warehouse_id, 
-                    $data["product_sku"], 
-                    $row['in'] ?? 0, 
-                    $data["quantity"]
-                );
-
-            }
-
+        dbTransaction($pdo2, function($pdo) use ($data, $company_id, $logging, $uuid) {
+            $stock = new StockManager($pdo, $company_id);
+            $stock->saveStockIn($data, $logging, $uuid);
         });
 
-        $answer["success"] = 1;
+        $answer['success'] = 1;
 
     } catch (PDOException $e) {
-        $answer["success"] = 0;
-        $answer["message"] = "Database error, please try again";
+        $answer['success'] = 0;
+        $answer['message'] = 'Database error, please try again';
         http_response_code(500);
 
     } catch (Exception $e) {
-        $answer["success"] = 0;
-        $answer["message"] = $e->getMessage();
+        $answer['success'] = 0;
+        $answer['message'] = $e->getMessage();
         http_response_code(400);
     }
 

app/ics/api/engine/manage_stock_out.php

@@ -1,145 +1,25 @@
-<?php 
+<?php
     session_start();
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/StockManager.php';
     require '../../../assets/utils/classes/WarehouseManager.php';
 
     try {
-        
         dbTransaction($pdo2, function($pdo) use ($data, $company_id, $logging, $uuid) {
-
-            $id = (int)$data['id'];
-            $warehouse_id = (int)$data["warehouse"];
-            $whMgmt = new WarehouseManager($pdo, $company_id);
-
-            $warehouse = $whMgmt->getStockContext($warehouse_id, $id);
-            $row   = $warehouse['row'] ?? [];
-            $table = $warehouse['table'];
-
-            // Append this edit/create event to td_stock_<wh>.log (stock record history)
-            $table_log = json_decode($row['log'] ?? '[]', true);
-            $table_log[] = $logging;
-
-            if ($id > 0) {
-
-                // UPDATE existing stock_out record
-                $sql = "UPDATE `$table` SET
-                            `contact_id`  = :contact_id,
-                            `description` = :description,
-                            `log`         = :log
-                        WHERE id = :id AND company_id = :company_id";
-
-                $sth = $pdo->prepare($sql);
-                $sth->execute([
-                    ":id"          => $id,
-                    ":company_id"  => $company_id,
-                    ":contact_id"  => (int)$data["contact_id"],
-                    ":description" => $data["description"],
-                    ":log"         => json_encode($table_log),
-                ]);
-
-            } else {
-
-                // Look up the source stock record via the rack.
-                // Under 1:1, the rack points to exactly one td_stock_<wh> row.
-                $source_stock = $whMgmt->getRackStock(
-                    $warehouse_id, 
-                    $data["zone"], 
-                    $data["aisle"], 
-                    $data["rack"]
-                );
-
-                if (!$source_stock) {
-                    throw new Exception(
-                        "Rack {$data['zone']}-{$data['aisle']}-{$data['rack']} is empty — nothing to take out."
-                    );
-                }
-
-                // Defensive checks — UI cascade should already prevent mismatches
-                if ($source_stock['product_sku'] !== $data["product_sku"]) {
-                    throw new Exception(
-                        "Rack holds {$source_stock['product_sku']}, not {$data['product_sku']}."
-                    );
-                }
-
-                // If user selected a specific lot, verify it matches the rack's stock
-                if (!empty($data["lot_number"]) && $source_stock['lot_number'] !== $data["lot_number"]) {
-                    throw new Exception(
-                        "Rack holds lot '{$source_stock['lot_number']}', not '{$data['lot_number']}'."
-                    );
-                }
-
-                // If user selected a specific serial, verify it matches the rack's stock
-                if (!empty($data["serial_number"]) && $source_stock['serial_number'] !== $data["serial_number"]) {
-                    throw new Exception(
-                        "Rack holds serial '{$source_stock['serial_number']}', not '{$data['serial_number']}'."
-                    );
-                }
-
-                // Quantity comes from the source stock_in row, NOT user input.
-                // Under 1:1, taking from this rack = taking the full batch.
-                $quantity      = (int) $source_stock['in'];
-                $ref_id        = (int) $source_stock['id'];
-                $lot_number    = $source_stock['lot_number']    ?? null;
-                $serial_number = $source_stock['serial_number'] ?? null;
-
-                // INSERT new stock_out record.
-                // lot_number and serial_number carried from source stock_in row.
-                // ref_id links this stock_out row back to the stock_in batch it consumed.
-                $sql = "INSERT INTO `$table` 
-                        (uuid, company_id, `date`, product_sku, `out`, zone, aisle, rack, 
-                         contact_id, `description`, `log`, `type`, ref_id, lot_number, serial_number) 
-                        VALUES 
-                        (:uuid, :company_id, :date, :product_sku, :quantity, :zone, :aisle, :rack, 
-                         :contact_id, :description, :log, 'out', :ref_id, :lot_number, :serial_number)";
-
-                $sth = $pdo->prepare($sql);
-                $sth->execute([
-                    ":uuid"          => $uuid,
-                    ":company_id"    => $company_id,
-                    ":date"          => date('Y-m-d H:i:s'),
-                    ":product_sku"   => $data["product_sku"],
-                    ":quantity"      => $quantity,
-                    ":zone"          => $data["zone"],
-                    ":aisle"         => $data["aisle"],
-                    ":rack"          => $data["rack"],
-                    ":contact_id"    => (int)$data["contact_id"],
-                    ":description"   => $data["description"],
-                    ":log"           => json_encode($table_log),
-                    ":ref_id"        => $ref_id,
-                    ":lot_number"    => $lot_number,
-                    ":serial_number" => $serial_number,
-                ]);
-
-                // Release the rack — stock is now gone from this location.
-                $whMgmt->releaseRack(
-                    $warehouse_id, 
-                    $data["zone"], $data["aisle"], $data["rack"]
-                );
-                // Balance: total_out increases by delta.
-                //   INSERT: $row['out'] = 0   → delta = full quantity
-                //   UPDATE: $row['out'] = old → delta = new - old
-                $whMgmt->adjustBalance(
-                    'out', 
-                    $warehouse_id, 
-                    $data["product_sku"], 
-                    $row['out'] ?? 0, 
-                    $quantity
-                );
-
-            }
-
+            $stock = new StockManager($pdo, $company_id);
+            $stock->saveStockOut($data, $logging, $uuid);
         });
 
-        $answer["success"] = 1;
+        $answer['success'] = 1;
 
     } catch (PDOException $e) {
-        $answer["success"] = 0;
-        $answer["message"] = "Database error, please try again";
+        $answer['success'] = 0;
+        $answer['message'] = 'Database error, please try again';
         http_response_code(500);
 
     } catch (Exception $e) {
-        $answer["success"] = 0;
-        $answer["message"] = $e->getMessage();
+        $answer['success'] = 0;
+        $answer['message'] = $e->getMessage();
         http_response_code(400);
     }
 

app/ics/api/engine/manage_stock_transfer.php

@@ -1,239 +1,25 @@
-<?php 
+<?php
     session_start();
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/StockManager.php';
     require '../../../assets/utils/classes/WarehouseManager.php';
 
     try {
-
         dbTransaction($pdo2, function($pdo) use ($data, $company_id, $logging, $uuid) {
-
-            $id = (int)($data['id'] ?? 0);
-            $whMgmt = new WarehouseManager($pdo, $company_id);
-
-            // Metadata that's editable on BOTH create and edit
-            $contact_id  = (int)($data['contact_id'] ?? 0);
-            $description =      ($data['description'] ?? '');
-
-            // ══════════════════════════════════════════════════════════
-            // EDIT FLOW
-            // Physical state (racks, balances, quantities) is frozen.
-            // Only metadata (contact, description) can change.
-            // ══════════════════════════════════════════════════════════
-            if ($id > 0) {
-
-                // Find the "from" row that's being edited.
-                // We look it up across all td_stock_<wh> via warehouse_from
-                // since $id alone isn't enough (it's per-table).
-                $from_warehouse = (int)($data['warehouse_from'] ?? 0);
-                $to_warehouse   = (int)($data['warehouse_to']   ?? 0);
-
-                $from_ctx   = $whMgmt->getStockContext($from_warehouse, $id);
-                $from_table = $from_ctx['table'];
-                $from_row   = $from_ctx['row'];
-
-                if (!$from_row) {
-                    throw new Exception("Transfer record not found.");
-                }
-
-                // Find the paired "to" row via ref_id stored on the "from" row
-                $to_id    = (int) $from_row['ref_id'];
-                $to_ctx   = $whMgmt->getStockContext($to_warehouse, $to_id);
-                $to_table = $to_ctx['table'];
-                $to_row   = $to_ctx['row'];
-
-                if (!$to_row) {
-                    throw new Exception("Paired destination record missing — data integrity issue.");
-                }
-
-                // Append this edit to both rows' logs
-                $from_log   = json_decode($from_row['log'] ?? '[]', true) ?: [];
-                $from_log[] = $logging;
-
-                $to_log     = json_decode($to_row['log'] ?? '[]', true) ?: [];
-                $to_log[]   = $logging;
-
-                // UPDATE "from" row — only metadata fields
-                $sql = "UPDATE `$from_table` SET
-                            contact_id  = :contact_id,
-                            description = :description,
-                            `log`       = :log
-                        WHERE id = :id AND company_id = :company_id";
-                $pdo->prepare($sql)->execute([
-                    ":contact_id"  => $contact_id,
-                    ":description" => $description,
-                    ":log"         => json_encode($from_log),
-                    ":id"          => $id,
-                    ":company_id"  => $company_id,
-                ]);
-
-                // UPDATE "to" row — same metadata
-                $sql = "UPDATE `$to_table` SET
-                            contact_id  = :contact_id,
-                            description = :description,
-                            `log`       = :log
-                        WHERE id = :id AND company_id = :company_id";
-                $pdo->prepare($sql)->execute([
-                    ":contact_id"  => $contact_id,
-                    ":description" => $description,
-                    ":log"         => json_encode($to_log),
-                    ":id"          => $to_id,
-                    ":company_id"  => $company_id,
-                ]);
-
-                // Done — no rack ops, no balance changes on edit.
-                return;
-            }
-
-            // ══════════════════════════════════════════════════════════
-            // CREATE FLOW (unchanged from before)
-            // ══════════════════════════════════════════════════════════
-
-            // Gather source + destination parameters
-            $from_warehouse = (int)$data['warehouse_from'];
-            $from_zone      = $data['zone_from'];
-            $from_aisle     = $data['aisle_from'];
-            $from_rack      = $data['rack_from'];
-
-            $to_warehouse   = (int)$data['warehouse_to'];
-            $to_zone        = $data['zone_to'];
-            $to_aisle       = $data['aisle_to'];
-            $to_rack        = $data['rack_to'];
-
-            // Validate source rack has stock of the expected SKU.
-            // Quantity comes from here — NOT user input.
-            $source_stock = $whMgmt->getRackStock(
-                $from_warehouse, $from_zone, $from_aisle, $from_rack
-            );
-
-            if (!$source_stock) {
-                throw new Exception(
-                    "Source rack {$from_zone}-{$from_aisle}-{$from_rack} is empty."
-                );
-            }
-
-            if ($source_stock['product_sku'] !== $data["product_sku"]) {
-                throw new Exception(
-                    "Source rack holds {$source_stock['product_sku']}, not {$data['product_sku']}."
-                );
-            }
-
-            // Defensive lot/serial checks
-            if (!empty($data["lot_number"]) && $source_stock['lot_number'] !== $data["lot_number"]) {
-                throw new Exception(
-                    "Source rack holds lot '{$source_stock['lot_number']}', not '{$data['lot_number']}'."
-                );
-            }
-            if (!empty($data["serial_number"]) && $source_stock['serial_number'] !== $data["serial_number"]) {
-                throw new Exception(
-                    "Source rack holds serial '{$source_stock['serial_number']}', not '{$data['serial_number']}'."
-                );
-            }
-
-            $quantity      = (int) $source_stock['in'];
-            $lot_number    = $source_stock['lot_number']    ?? null;
-            $serial_number = $source_stock['serial_number'] ?? null;
-
-            // Resolve both td_stock_<wh> tables
-            $from_ctx   = $whMgmt->getStockContext($from_warehouse, 0);
-            $to_ctx     = $whMgmt->getStockContext($to_warehouse,   0);
-            $from_table = $from_ctx['table'];
-            $to_table   = $to_ctx['table'];
-
-            // Share UUID across both paired rows for easy grouping
-            $transfer_uuid = $uuid;
-
-            // INSERT "from" row (outbound from source warehouse)
-            $table_log = [$logging];
-
-            $sql = "INSERT INTO `$from_table`
-                    (uuid, company_id, `date`, product_sku, `out`, 
-                     ref_warehouse, zone, aisle, rack, 
-                     contact_id, `description`, `log`, `type`, lot_number, serial_number)
-                    VALUES
-                    (:uuid, :company_id, :date, :product_sku, :quantity,
-                     :ref_warehouse, :zone, :aisle, :rack,
-                     :contact_id, :description, :log, 'transfer', :lot_number, :serial_number)";
-            $pdo->prepare($sql)->execute([
-                ":uuid"          => $transfer_uuid,
-                ":company_id"    => $company_id,
-                ":date"          => date('Y-m-d H:i:s'),
-                ":product_sku"   => $data["product_sku"],
-                ":quantity"      => $quantity,
-                ":ref_warehouse" => $to_warehouse,
-                ":zone"          => $from_zone,
-                ":aisle"         => $from_aisle,
-                ":rack"          => $from_rack,
-                ":contact_id"    => $contact_id,
-                ":description"   => $description,
-                ":log"           => json_encode($table_log),
-                ":lot_number"    => $lot_number,
-                ":serial_number" => $serial_number,
-            ]);
-            $from_stock_id = (int) $pdo->lastInsertId();
-
-            // INSERT "to" row (inbound at destination warehouse)
-            $sql = "INSERT INTO `$to_table`
-                    (uuid, company_id, `date`, product_sku, `in`, 
-                     ref_warehouse, ref_id, zone, aisle, rack, 
-                     contact_id, `description`, `log`, `type`, lot_number, serial_number)
-                    VALUES
-                    (:uuid, :company_id, :date, :product_sku, :quantity,
-                     :ref_warehouse, :ref_id, :zone, :aisle, :rack,
-                     :contact_id, :description, :log, 'transfer', :lot_number, :serial_number)";
-            $pdo->prepare($sql)->execute([
-                ":uuid"          => $transfer_uuid,
-                ":company_id"    => $company_id,
-                ":date"          => date('Y-m-d H:i:s'),
-                ":product_sku"   => $data["product_sku"],
-                ":quantity"      => $quantity,
-                ":ref_warehouse" => $from_warehouse,
-                ":ref_id"        => $from_stock_id,
-                ":zone"          => $to_zone,
-                ":aisle"         => $to_aisle,
-                ":rack"          => $to_rack,
-                ":contact_id"    => $contact_id,
-                ":description"   => $description,
-                ":log"           => json_encode($table_log),
-                ":lot_number"    => $lot_number,
-                ":serial_number" => $serial_number,
-            ]);
-            $to_stock_id = (int) $pdo->lastInsertId();
-
-            // Back-fill the "from" row's ref_id now that we have to_stock_id
-            // so both rows point at each other
-            $sql = "UPDATE `$from_table`
-                    SET ref_id = :ref_id
-                    WHERE id = :id AND company_id = :company_id";
-            $pdo->prepare($sql)->execute([
-                ":ref_id"     => $to_stock_id,
-                ":id"         => $from_stock_id,
-                ":company_id" => $company_id,
-            ]);
-
-            // Move rack state: release source, occupy destination
-            // md_rack.log gets 'release' + 'occupy' entries automatically
-            $whMgmt->releaseRack($from_warehouse, $from_zone, $from_aisle, $from_rack);
-            $whMgmt->occupyRack(
-                $to_warehouse, $to_zone, $to_aisle, $to_rack,
-                $data["product_sku"], $to_stock_id
-            );
-
-            // Balance adjustments on both warehouses
-            $whMgmt->adjustBalance('out', $from_warehouse, $data["product_sku"], 0, $quantity);
-            $whMgmt->adjustBalance('in',  $to_warehouse,   $data["product_sku"], 0, $quantity);
-
+            $stock = new StockManager($pdo, $company_id);
+            $stock->saveStockTransfer($data, $logging, $uuid);
         });
 
-        $answer["success"] = 1;
+        $answer['success'] = 1;
 
     } catch (PDOException $e) {
-        $answer["success"] = 0;
-        $answer["message"] = "Database error, please try again";
+        $answer['success'] = 0;
+        $answer['message'] = 'Database error, please try again';
         http_response_code(500);
 
     } catch (Exception $e) {
-        $answer["success"] = 0;
-        $answer["message"] = $e->getMessage();
+        $answer['success'] = 0;
+        $answer['message'] = $e->getMessage();
         http_response_code(400);
     }
 

app/ics/api/engine/product_search.php

@@ -1,25 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/ProductManager.php';
 
-    $sql = "SELECT *
-            FROM md_product
-            WHERE 
-              company_id = :company_id and 
-              sku like :keyword
-            LIMIT 50
-            ";
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":keyword" => '%'.$data["keyword"].'%'
-    ]);
-    db_check($sth, $answer);
-
-    $result = $sth->fetchAll(PDO::FETCH_ASSOC);
-    $answer["result"] = $result;
-    $answer["success"] = 1;
+    $product = new ProductManager($pdo2, $company_id);
+    $answer['result']  = $product->searchProduct($data['keyword'] ?? '');
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine/retrieve_active_lot.php

@@ -3,8 +3,6 @@
     require '../../../assets/utils/db_auth.php';
     require '../../../assets/utils/classes/WarehouseManager.php';
 
-    // Returns active lots for a given product_sku
-    // "Active" = EXISTS in an occupied md_rack (product_sku IS NOT NULL)
     $product_sku = $data['product_sku'] ?? '';
 
     if (empty($product_sku)) {
@@ -13,52 +11,8 @@
         exit(json_encode($answer));
     }
 
-    // Discover all warehouses
-    $sth = $pdo2->prepare(
-        "SELECT id, warehouse_name FROM md_warehouse
-         WHERE company_id = :company_id AND status = 1"
-    );
-    $sth->execute([':company_id' => $company_id]);
-    $warehouses = $sth->fetchAll(PDO::FETCH_ASSOC);
-
-    $active_lots = [];
-
-    foreach ($warehouses as $wh) {
-        $safe  = preg_replace('/[^a-zA-Z0-9_]/', '', $wh['warehouse_name']);
-        $table = "td_stock_{$safe}";
-
-        $sth = $pdo2->prepare(
-            "SELECT DISTINCT s.lot_number, l.expiry_date
-             FROM `{$table}` s
-             LEFT JOIN md_lot l
-                 ON l.company_id  = s.company_id
-                 AND l.product_sku = s.product_sku
-                 AND l.lot_number  = s.lot_number
-             WHERE s.company_id  = :company_id
-               AND s.product_sku = :product_sku
-               AND s.type        = 'in'
-               AND s.lot_number  IS NOT NULL
-               AND EXISTS (
-                   SELECT 1 FROM md_rack r
-                   WHERE r.company_id  = s.company_id
-                     AND r.td_stock_id = s.id
-                     AND r.product_sku IS NOT NULL
-               )"
-        );
-        $sth->execute([
-            ':company_id'  => $company_id,
-            ':product_sku' => $product_sku,
-        ]);
-
-        foreach ($sth->fetchAll(PDO::FETCH_ASSOC) as $row) {
-            $key = $row['lot_number'];
-            if (!isset($active_lots[$key])) {
-                $active_lots[$key] = $row;
-            }
-        }
-    }
-
-    $answer['output']  = array_values($active_lots);
+    $wh = new WarehouseManager($pdo2, $company_id);
+    $answer['output']  = $wh->getActiveLots($product_sku);
     $answer['success'] = 1;
     exit(json_encode($answer));
 ?>

app/ics/api/engine/retrieve_active_serial.php

@@ -1,11 +1,9 @@
 <?php
     session_start();
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/WarehouseManager.php';
 
-    // Returns active serials for a given product_sku + optional lot_number
-    // "Active" = EXISTS in an occupied md_rack
     $product_sku = $data['product_sku'] ?? '';
-    $lot_number  = $data['lot_number']  ?? '';
 
     if (empty($product_sku)) {
         $answer['output']  = [];
@@ -13,52 +11,8 @@
         exit(json_encode($answer));
     }
 
-    // Discover all warehouses
-    $sth = $pdo2->prepare(
-        "SELECT id, warehouse_name FROM md_warehouse
-         WHERE company_id = :company_id AND status = 1"
-    );
-    $sth->execute([':company_id' => $company_id]);
-    $warehouses = $sth->fetchAll(PDO::FETCH_ASSOC);
-
-    $active_serials = [];
-
-    foreach ($warehouses as $wh) {
-        $safe  = preg_replace('/[^a-zA-Z0-9_]/', '', $wh['warehouse_name']);
-        $table = "td_stock_{$safe}";
-
-        $sql = "SELECT DISTINCT s.serial_number
-                FROM `{$table}` s
-                WHERE s.company_id   = :company_id
-                  AND s.product_sku  = :product_sku
-                  AND s.type         = 'in'
-                  AND s.serial_number IS NOT NULL
-                  AND EXISTS (
-                      SELECT 1 FROM md_rack r
-                      WHERE r.company_id  = s.company_id
-                        AND r.td_stock_id = s.id
-                        AND r.product_sku IS NOT NULL
-                  )";
-
-        $params = [
-            ':company_id'  => $company_id,
-            ':product_sku' => $product_sku,
-        ];
-
-        if (!empty($lot_number)) {
-            $sql .= " AND s.lot_number = :lot_number";
-            $params[':lot_number'] = $lot_number;
-        }
-
-        $sth = $pdo2->prepare($sql);
-        $sth->execute($params);
-
-        foreach ($sth->fetchAll(PDO::FETCH_ASSOC) as $row) {
-            $active_serials[$row['serial_number']] = $row['serial_number'];
-        }
-    }
-
-    $answer['output']  = array_values($active_serials);
+    $wh = new WarehouseManager($pdo2, $company_id);
+    $answer['output']  = $wh->getActiveSerials($product_sku, $data['lot_number'] ?? '');
     $answer['success'] = 1;
     exit(json_encode($answer));
 ?>

app/ics/api/engine/retrieve_aisle.php

@@ -6,15 +6,15 @@
     $type    = $data['type'] ?? '';
     $whMgmt  = new WarehouseManager($pdo2, $company_id);
 
-    // Resolve warehouse and zone
     $warehouse = (int)($data['warehouse'] ?? 0);
     $zone      = $data['zone'] ?? '';
     if (isset($data['warehouse_from']) && $type === 'from') { $warehouse = (int)$data['warehouse_from']; $zone = $data['zone_from'] ?? $zone; }
     if (isset($data['warehouse_to'])   && $type === 'to')   { $warehouse = (int)$data['warehouse_to'];   $zone = $data['zone_to']   ?? $zone; }
 
-    if ($type === 'to') {
+    if (!empty($data['id'])) {
+        $output = $whMgmt->getAislesAll($warehouse, $zone);
+    } elseif ($type === 'to') {
         $output = $whMgmt->getAislesIn($warehouse, $zone);
-
     } elseif ($type === 'from') {
         $output = $whMgmt->getAislesOut(
             $warehouse,
@@ -23,26 +23,8 @@
             $data['lot_number']    ?? null,
             $data['serial_number'] ?? null
         );
-
     } else {
-        $sth = $pdo2->prepare(
-            "SELECT DISTINCT aisle FROM md_rack
-             WHERE company_id = :company_id AND warehouse = :warehouse AND zone = :zone
-             ORDER BY CAST(aisle AS UNSIGNED), aisle"
-        );
-        $sth->execute([':company_id' => $company_id, ':warehouse' => $warehouse, ':zone' => $zone]);
-        $output = array_column($sth->fetchAll(PDO::FETCH_ASSOC), 'aisle');
-    }
-
-    // Edit mode
-    if (!empty($data['id'])) {
-        $sth = $pdo2->prepare(
-            "SELECT DISTINCT aisle FROM md_rack
-             WHERE company_id = :company_id AND warehouse = :warehouse AND zone = :zone
-             ORDER BY CAST(aisle AS UNSIGNED), aisle"
-        );
-        $sth->execute([':company_id' => $company_id, ':warehouse' => $warehouse, ':zone' => $zone]);
-        $output = array_column($sth->fetchAll(PDO::FETCH_ASSOC), 'aisle');
+        $output = $whMgmt->getAislesAll($warehouse, $zone);
     }
 
     $answer['output']  = $output;

app/ics/api/engine/retrieve_lot.php

@@ -1,26 +1,13 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/WarehouseManager.php';
 
-    $sql = "SELECT *
-            FROM md_lot
-            WHERE 
-              company_id  = :company_id AND
-              product_sku = :product_sku AND
-              lot_number LIKE :keyword
-            ORDER BY lot_number ASC
-            LIMIT 50";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id"  => $company_id,
-        ":product_sku" => $data["product_sku"] ?? '',
-        ":keyword"     => '%'.$data["keyword"].'%'
-    ]);
-    db_check($sth, $answer);
-
-    $answer["result"]  = $sth->fetchAll(PDO::FETCH_ASSOC);
-    $answer["success"] = 1;
+    $wh = new WarehouseManager($pdo2, $company_id);
+    $answer['result']  = $wh->getLotList(
+        $data['product_sku'] ?? '',
+        $data['keyword']     ?? ''
+    );
+    $answer['success'] = 1;
     exit(json_encode($answer));
 ?>

app/ics/api/engine/retrieve_rack.php

@@ -6,16 +6,16 @@
     $type    = $data['type'] ?? '';
     $whMgmt  = new WarehouseManager($pdo2, $company_id);
 
-    // Resolve warehouse, zone and aisle
     $warehouse = (int)($data['warehouse'] ?? 0);
     $zone      = $data['zone']  ?? '';
     $aisle     = $data['aisle'] ?? '';
     if (isset($data['warehouse_from']) && $type === 'from') { $warehouse = (int)$data['warehouse_from']; $zone = $data['zone_from'] ?? $zone; $aisle = $data['aisle_from'] ?? $aisle; }
     if (isset($data['warehouse_to'])   && $type === 'to')   { $warehouse = (int)$data['warehouse_to'];   $zone = $data['zone_to']   ?? $zone; $aisle = $data['aisle_to']   ?? $aisle; }
 
-    if ($type === 'to') {
+    if (!empty($data['id'])) {
+        $output = $whMgmt->getRacksAll($warehouse, $zone, $aisle);
+    } elseif ($type === 'to') {
         $output = $whMgmt->getRacksIn($warehouse, $zone, $aisle);
-
     } elseif ($type === 'from') {
         $output = $whMgmt->getRacksOut(
             $warehouse,
@@ -25,26 +25,8 @@
             $data['lot_number']    ?? null,
             $data['serial_number'] ?? null
         );
-
     } else {
-        $sth = $pdo2->prepare(
-            "SELECT DISTINCT rack FROM md_rack
-             WHERE company_id = :company_id AND warehouse = :warehouse AND zone = :zone AND aisle = :aisle
-             ORDER BY CAST(rack AS UNSIGNED), rack"
-        );
-        $sth->execute([':company_id' => $company_id, ':warehouse' => $warehouse, ':zone' => $zone, ':aisle' => $aisle]);
-        $output = array_column($sth->fetchAll(PDO::FETCH_ASSOC), 'rack');
-    }
-
-    // Edit mode
-    if (!empty($data['id'])) {
-        $sth = $pdo2->prepare(
-            "SELECT DISTINCT rack FROM md_rack
-             WHERE company_id = :company_id AND warehouse = :warehouse AND zone = :zone AND aisle = :aisle
-             ORDER BY CAST(rack AS UNSIGNED), rack"
-        );
-        $sth->execute([':company_id' => $company_id, ':warehouse' => $warehouse, ':zone' => $zone, ':aisle' => $aisle]);
-        $output = array_column($sth->fetchAll(PDO::FETCH_ASSOC), 'rack');
+        $output = $whMgmt->getRacksAll($warehouse, $zone, $aisle);
     }
 
     $answer['output']  = $output;

app/ics/api/engine/retrieve_stock_in.php

@@ -1,55 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/StockManager.php';
 
-    $id = (int)$data['id'];
-    $warehouse = (int)$data["wh"];
-
-    // get warehouse name
-    $sql = "SELECT warehouse_name
-        FROM md_warehouse
-        WHERE 
-            company_id = :company_id and 
-            id = :warehouse
-        ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":warehouse" => $warehouse
-    ]);
-    db_check($sth, $answer);
-
-    $warehouse = $sth->fetchColumn();
-    
-    $table = "td_stock_" . $warehouse;
-
-    $sql = "SELECT a.* , a.in as quantity, b.contact_name, c.product_name, d.expiry_date
-        FROM `{$table}` a
-        LEFT JOIN md_contact b ON
-          a.company_id = b.company_id and 
-          a.contact_id = b.id
-        LEFT JOIN md_product c ON
-          a.company_id = c.company_id and 
-          a.product_sku = c.sku
-        LEFT JOIN md_lot d ON
-          a.company_id = d.company_id and 
-          a.product_sku = d.product_sku and
-          a.lot_number = d.lot_number
-        WHERE 
-            a.company_id = :company_id and 
-            a.id = :id ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":id" => $id
-    ]);
-    db_check($sth, $answer);
-
-    $answer["output"] = $sth->fetch(PDO::FETCH_ASSOC);
-    $answer["success"] = 1;
+    $stock = new StockManager($pdo2, $company_id);
+    $answer['output']  = $stock->getStockInById((int)$data['wh'], (int)$data['id']);
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine/retrieve_stock_out.php

@@ -1,51 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/StockManager.php';
 
-    $id = (int)$data['id'];
-    $warehouse = (int)$data["wh"];
-
-    // get warehouse name
-    $sql = "SELECT warehouse_name
-        FROM md_warehouse
-        WHERE 
-            company_id = :company_id and 
-            id = :warehouse
-        ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":warehouse" => $warehouse
-    ]);
-    db_check($sth, $answer);
-
-    $warehouse = $sth->fetchColumn();
-    
-    $table = "td_stock_" . $warehouse;
-
-    $sql = "SELECT a.* , a.out as quantity, b.contact_name, c.product_name
-        FROM `{$table}` a
-        LEFT JOIN md_contact b ON
-          a.company_id = b.company_id and 
-          a.contact_id = b.id
-        LEFT JOIN md_product c ON
-          a.company_id = c.company_id and 
-          a.product_sku = c.sku
-        WHERE 
-            a.company_id = :company_id and 
-            a.id = :id ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":id" => $id
-    ]);
-    db_check($sth, $answer);
-
-    $answer["output"] = $sth->fetch(PDO::FETCH_ASSOC);
-    $answer["success"] = 1;
+    $stock = new StockManager($pdo2, $company_id);
+    $answer['output']  = $stock->getStockOutById((int)$data['wh'], (int)$data['id']);
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine/retrieve_stock_transfer.php

@@ -1,101 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/StockManager.php';
 
-    $id = (int)$data['id'];
-    $warehouse = (int)$data["wh"];
-    
-    /**
-     * FROM warehouse, zone, aisle, rack, product name, quantity, contact name
-    */
-
-    // get warehouse name
-    $sql = "SELECT warehouse_name
-        FROM md_warehouse
-        WHERE 
-            company_id = :company_id and 
-            id = :warehouse
-        ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":warehouse" => $warehouse
-    ]);
-    db_check($sth, $answer);
-
-    $warehouse = $sth->fetchColumn();
-
-    $table = "td_stock_" . $warehouse;
-
-    $sql = "SELECT a.* , a.out as quantity, b.contact_name, c.product_name
-        FROM `{$table}` a
-        LEFT JOIN md_contact b ON
-          a.company_id = b.company_id and 
-          a.contact_id = b.id
-        LEFT JOIN md_product c ON
-          a.company_id = c.company_id and 
-          a.product_sku = c.sku
-        WHERE 
-            a.company_id = :company_id and 
-            a.id = :id ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":id" => $id
-    ]);
-    db_check($sth, $answer);
-
-    $output = $sth->fetch(PDO::FETCH_ASSOC);
-
-    /**
-     * TO warehouse, zone, aisle, rack, product name, quantity, contact name
-     */
-
-     // get warehouse name
-    $sql = "SELECT warehouse_name
-        FROM md_warehouse
-        WHERE 
-            company_id = :company_id and 
-            id = :warehouse
-        ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":warehouse" => $output["ref_warehouse"]
-    ]);
-    db_check($sth, $answer);
-
-    $warehouse = $sth->fetchColumn();
-
-    $table = "td_stock_" . $warehouse;
-
-    $sql = "SELECT a.* , a.in as quantity, b.contact_name, c.product_name
-        FROM `{$table}` a
-        LEFT JOIN md_contact b ON
-          a.company_id = b.company_id and 
-          a.contact_id = b.id
-        LEFT JOIN md_product c ON
-          a.company_id = b.company_id and 
-          a.product_sku = c.sku
-        WHERE 
-            a.company_id = :company_id and 
-            a.uuid = :id ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":id" => $output["uuid"]
-    ]);
-    db_check($sth, $answer);
-
-    $output["ref"] = $sth->fetch(PDO::FETCH_ASSOC);
-
-    $answer["output"] = $output;
-    $answer["success"] = 1;
+    $stock = new StockManager($pdo2, $company_id);
+    $answer['output']  = $stock->getTransferById((int)$data['wh'], (int)$data['id']);
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine/retrieve_warehouse.php

@@ -1,46 +1,14 @@
-<?php 
+<?php
     session_start();
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/WarehouseManager.php';
 
-    // Build filter + params based on operation type.
-    // Filter warehouses by occupancy:
-    //   'to'   = destination → only warehouses with at least one empty rack
-    //   'from' = source      → only warehouses that hold the specific product SKU
-    //   other  = all warehouses (for read-only listings, dashboards, etc.)
-    $product_sku_filter = "";
-    $params = [":company_id" => $company_id];
-
-    if ($data["type"] == "to") {
-        $product_sku_filter = "AND r.product_sku IS NULL";
-
-    } elseif ($data["type"] == "from") {
-        $product_sku_filter = "AND r.product_sku = :product_sku";
-        $params[":product_sku"] = $data["product_sku"];
-    }
-
-    if(!empty($data["id"])){
-        $product_sku_filter = "";
-        unset($params[":product_sku"]);
-    }
-
-    // Only list warehouses that have racks matching the occupancy filter.
-    // EXISTS is efficient here — it stops searching as soon as one match is found.
-    $sql = "SELECT w.id, w.warehouse_name
-            FROM md_warehouse w
-            WHERE w.company_id = :company_id
-              AND EXISTS (
-                  SELECT 1 FROM md_rack r
-                  WHERE r.company_id = w.company_id
-                    AND r.warehouse  = w.id
-                    $product_sku_filter
-              )
-            ORDER BY w.warehouse_name";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute($params);
-    db_check($sth, $answer);
-
-    $answer["output"]  = $sth->fetchAll(PDO::FETCH_ASSOC);
-    $answer["success"] = 1;
+    $wh = new WarehouseManager($pdo2, $company_id);
+    $answer['output']  = $wh->getWarehouseList(
+        $data['type']        ?? '',
+        $data['product_sku'] ?? '',
+        (int)($data['id']   ?? 0)
+    );
+    $answer['success'] = 1;
     exit(json_encode($answer));
 ?>

app/ics/api/engine/retrieve_zone.php

@@ -6,44 +6,23 @@
     $type    = $data['type'] ?? '';
     $whMgmt  = new WarehouseManager($pdo2, $company_id);
 
-    // Resolve warehouse — supports warehouse, warehouse_from, warehouse_to
     $warehouse = (int)($data['warehouse'] ?? 0);
     if (isset($data['warehouse_from']) && $type === 'from') $warehouse = (int)$data['warehouse_from'];
     if (isset($data['warehouse_to'])   && $type === 'to')   $warehouse = (int)$data['warehouse_to'];
 
-    if ($type === 'to') {
-        // Stock_in destination — empty racks only
+    if (!empty($data['id'])) {
+        $output = $whMgmt->getZonesAll($warehouse);
+    } elseif ($type === 'to') {
         $output = $whMgmt->getZonesIn($warehouse);
-
     } elseif ($type === 'from') {
-        // Stock_out source — filter by sku + lot + serial
         $output = $whMgmt->getZonesOut(
             $warehouse,
             $data['product_sku']   ?? '',
             $data['lot_number']    ?? null,
             $data['serial_number'] ?? null
         );
-
     } else {
-        // Admin / read-only — all zones in the warehouse
-        $sth = $pdo2->prepare(
-            "SELECT DISTINCT zone FROM md_rack
-             WHERE company_id = :company_id AND warehouse = :warehouse
-             ORDER BY CAST(zone AS UNSIGNED), zone"
-        );
-        $sth->execute([':company_id' => $company_id, ':warehouse' => $warehouse]);
-        $output = $sth->fetchAll(PDO::FETCH_ASSOC);
-    }
-
-    // Edit mode — return all zones regardless of occupancy
-    if (!empty($data['id'])) {
-        $sth = $pdo2->prepare(
-            "SELECT DISTINCT zone FROM md_rack
-             WHERE company_id = :company_id AND warehouse = :warehouse
-             ORDER BY CAST(zone AS UNSIGNED), zone"
-        );
-        $sth->execute([':company_id' => $company_id, ':warehouse' => $warehouse]);
-        $output = $sth->fetchAll(PDO::FETCH_ASSOC);
+        $output = $whMgmt->getZonesAll($warehouse);
     }
 
     $answer['output']  = $output;

app/ics/api/engine/stock_in.php

@@ -1,53 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/StockManager.php';
 
-    $id = (int)$data['id'];
-    $warehouse = (int)$data["warehouse"];
-
-    // get warehouse name
-    $sql = "SELECT warehouse_name
-        FROM md_warehouse
-        WHERE 
-            company_id = :company_id and 
-            id = :warehouse
-        ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":warehouse" => $warehouse
-    ]);
-    db_check($sth, $answer);
-
-    $warehouse = $sth->fetchColumn();
-
-    if(!$warehouse) {
-        $answer["message"] = "Warehouse not found";
-        exit(json_encode($answer));
-    }
-    
-    $table = "td_stock_" . $warehouse;
-
-    $sql = "SELECT a.* , ROUND(a.in,2) as quantity , 
-                b.product_name
-        FROM `{$table}` a
-        LEFT JOIN md_product b ON
-            a.company_id = b.company_id and 
-            a.product_sku = b.sku
-        WHERE 
-            a.company_id = {$company_id} and 
-            a.type = 'in'
-        ORDER BY a.date DESC";
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id
-    ]);
-    db_check($sth, $answer);
-
-    $answer["output"] = $sth->fetchAll(PDO::FETCH_ASSOC);
-    $answer["success"] = 1;
+    $stock = new StockManager($pdo2, $company_id);
+    $answer['output']  = $stock->getStockList((int)$data['warehouse'], 'in');
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine/stock_out.php

@@ -1,53 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/StockManager.php';
 
-    $id = (int)$data['id'];
-    $warehouse = (int)$data["warehouse"];
-
-    // get warehouse name
-    $sql = "SELECT warehouse_name
-        FROM md_warehouse
-        WHERE 
-            company_id = :company_id and 
-            id = :warehouse
-        ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":warehouse" => $warehouse
-    ]);
-    db_check($sth, $answer);
-
-    $warehouse = $sth->fetchColumn();
-
-    if(!$warehouse) {
-        $answer["message"] = "Warehouse not found";
-        exit(json_encode($answer));
-    }
-    
-    $table = "td_stock_" . $warehouse;
-
-    $sql = "SELECT a.* , ROUND(a.out,2) as quantity , 
-                b.product_name
-        FROM `{$table}` a
-        LEFT JOIN md_product b ON
-            a.company_id = b.company_id and 
-            a.product_sku = b.sku
-        WHERE 
-            a.company_id = {$company_id} and 
-            a.type = 'out'
-        ORDER BY a.date DESC";
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id
-    ]);
-    db_check($sth, $answer);
-
-    $answer["output"] = $sth->fetchAll(PDO::FETCH_ASSOC);
-    $answer["success"] = 1;
+    $stock = new StockManager($pdo2, $company_id);
+    $answer['output']  = $stock->getStockList((int)$data['warehouse'], 'out');
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine/stock_transfer.php

@@ -1,54 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/StockManager.php';
 
-    $id = (int)$data['id'];
-    $warehouse = (int)$data["warehouse"];
-
-    // get warehouse name
-    $sql = "SELECT warehouse_name
-        FROM md_warehouse
-        WHERE 
-            company_id = :company_id and 
-            id = :warehouse
-        ";
-
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id,
-        ":warehouse" => $warehouse
-    ]);
-    db_check($sth, $answer);
-
-    $warehouse = $sth->fetchColumn();
-
-    if(!$warehouse) {
-        $answer["message"] = "Warehouse not found";
-        exit(json_encode($answer));
-    }
-    
-    $table = "td_stock_" . $warehouse;
-
-    $sql = "SELECT a.* , ROUND(a.in,2) as quantity,
-                b.product_name
-        FROM `{$table}` a
-        LEFT JOIN md_product b ON
-            a.company_id = b.company_id and 
-            a.product_sku = b.sku
-        WHERE 
-            a.company_id = {$company_id} and 
-            a.type = 'transfer' and 
-            a.out > 0
-        ORDER BY a.date DESC";
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id
-    ]);
-    db_check($sth, $answer);
-
-    $answer["output"] = $sth->fetchAll(PDO::FETCH_ASSOC);
-    $answer["success"] = 1;
+    $stock = new StockManager($pdo2, $company_id);
+    $answer['output']  = $stock->getStockList((int)$data['warehouse'], 'transfer');
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine_report/stock_activity.php

@@ -1,66 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
-    require '../../../assets/utils/classes/WarehouseManager.php';
+    require '../../../assets/utils/classes/ReportManager.php';
 
-    $id = 0;
-    $warehouse_id = (int)$data['warehouse'];
-
-    $whMgmt = new WarehouseManager($pdo2, $company_id);
-    $warehouse = $whMgmt->getStockContext($warehouse_id, $id);
-    $table = $warehouse['table'];
-
-    
-    // ── Last 10 stock in/out transactions ────────────────────────────────
-    $sql = "SELECT
-                a.id,
-                a.date,
-                a.product_sku,
-                a.`in`   AS stock_in,
-                a.`out`  AS stock_out,
-                a.type,
-                a.description,
-                b.product_name
-            FROM `{$table}` a
-            LEFT JOIN md_product b ON
-                a.company_id = b.company_id and 
-                a.product_sku = b.sku
-            WHERE 
-                a.company_id = {$company_id} and
-                (a.`in` > 0 OR a.`out` > 0)
-            ORDER BY a.date DESC, a.id DESC
-            LIMIT 10";
-    
-    $sth = $pdo2->prepare($sql);
-    $sth->execute();
-    $rows = $sth->fetchAll(PDO::FETCH_ASSOC);
-    
-    // ── Build output ─────────────────────────────────────────────────────
-    $activities = [];
-    
-    foreach ($rows as $row) {
-        $is_in  = (float)$row['stock_in'] > 0;
-        $qty    = $is_in ? (float)$row['stock_in'] : (float)$row['stock_out'];
-    
-        $activities[] = [
-            'product_name' => $row['product_name'] ?: $row['product_sku'],
-            'sku'          => $row['product_sku'],
-            'direction'    => $is_in ? 'in' : 'out',
-            'qty'          => round($qty, 2),
-            'type'         => $row['type'],
-            'description'  => $row['description'],
-            'date'         => $row['date'],
-        ];
-    }
-    
-    // ── Response ─────────────────────────────────────────────────────────
-    $output = [
-        'activities' => $activities,
-    ];
-    
-    $answer["output"] = $output;
-    $answer["success"] = 1;
+    $report = new ReportManager($pdo2, $company_id);
+    $answer['output'] = $report->getWarehouseActivity((int)$data['warehouse']);
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine_report/stock_movement.php

@@ -1,70 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
-    require '../../../assets/utils/classes/WarehouseManager.php';
+    require '../../../assets/utils/classes/ReportManager.php';
 
-    $id = 0;
-    $warehouse_id = (int)$data['warehouse'];
-
-    $whMgmt = new WarehouseManager($pdo2, $company_id);
-    $warehouse = $whMgmt->getStockContext($warehouse_id, $id);
-    $table = $warehouse['table'];
-
-    
-    // ── Always last 12 months ────────────────────────────────────────────
-    $now   = new DateTime();
-    $start = (clone $now)->modify('-12 months')->format('Y-m-d 00:00:00');
-    $end   = $now->format('Y-m-d 23:59:59');
-    
-    // ── Query: group by month ────────────────────────────────────────────
-    $sql = "SELECT
-                DATE_FORMAT(a.date, '%b')    AS `label`,
-                DATE_FORMAT(a.date, '%Y-%m') AS `sort_key`,
-                ROUND(SUM(a.`in`),  2)       AS `stock_in`,
-                ROUND(SUM(a.`out`), 2)       AS `stock_out`
-            FROM `{$table}` a
-            WHERE 
-                a.company_id = {$company_id} and 
-                a.date      >= '{$start}' and 
-                a.date      <= '{$end}'
-            GROUP BY `sort_key`, `label`
-            ORDER BY `sort_key` ASC";
-    
-    $sth = $pdo2->prepare($sql);
-    $sth->execute();
-    $rows = $sth->fetchAll(PDO::FETCH_ASSOC);
-    
-    // ── Index DB results by sort_key (YYYY-MM) ──────────────────────────
-    $dataByMonth = [];
-    foreach ($rows as $row) {
-        $dataByMonth[$row['sort_key']] = $row;
-    }
-    
-    // ── Always build 12 months, fill zeros where no data ────────────────
-    $labels    = [];
-    $stock_in  = [];
-    $stock_out = [];
-    
-    for ($i = 11; $i >= 0; $i--) {
-        $dt       = (clone $now)->modify("-{$i} months");
-        $key      = $dt->format('Y-m');   // e.g. "2025-04"
-        $label    = $dt->format('M');     // e.g. "Apr"
-    
-        $labels[]    = $label;
-        $stock_in[]  = isset($dataByMonth[$key]) ? round((float)$dataByMonth[$key]['stock_in'],  2) : 0;
-        $stock_out[] = isset($dataByMonth[$key]) ? round((float)$dataByMonth[$key]['stock_out'], 2) : 0;
-    }
-    
-    // ── Response ─────────────────────────────────────────────────────────
-    $output = [
-        'labels'    => $labels,
-        'stock_in'  => $stock_in,
-        'stock_out' => $stock_out,
-    ];
-    
-    $answer["output"] = $output;
-    $answer["success"] = 1;
+    $report = new ReportManager($pdo2, $company_id);
+    $answer['output']  = $report->getWarehouseStockMovement((int)$data['warehouse']);
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine_report/stock_trend.php

@@ -1,84 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
-    require '../../../assets/utils/classes/WarehouseManager.php';
+    require '../../../assets/utils/classes/ReportManager.php';
 
-    $id = 0;
-    $warehouse_id = (int)$data['warehouse'];
-
-    $whMgmt = new WarehouseManager($pdo2, $company_id);
-    $warehouse = $whMgmt->getStockContext($warehouse_id, $id);
-    $table = $warehouse['table'];
-
-    
-    // ── Always last 12 months ────────────────────────────────────────────
-    $now   = new DateTime();
-    $start = (clone $now)->modify('-12 months')->format('Y-m-d 00:00:00');
-    $end   = $now->format('Y-m-d 23:59:59');
-    
-    // ── Get cumulative balance BEFORE the 12-month window ────────────────
-    $sql_prior = "SELECT
-                    ROUND(COALESCE(SUM(a.`in`), 0) - COALESCE(SUM(a.`out`), 0), 2) AS `balance`
-                FROM `{$table}` a
-                WHERE 
-                    a.company_id = {$company_id} and
-                    a.date       < '{$start}'";
-    
-    $sth = $pdo2->prepare($sql_prior);
-    $sth->execute();
-    $prior_balance = (float)$sth->fetchColumn();
-    
-    // ── Get monthly in/out for the 12-month window ──────────────────────
-    $sql = "SELECT
-                DATE_FORMAT(a.date, '%Y-%m') AS `sort_key`,
-                ROUND(SUM(a.`in`),  2)       AS `stock_in`,
-                ROUND(SUM(a.`out`), 2)       AS `stock_out`
-            FROM `{$table}` a
-            WHERE 
-                a.company_id = {$company_id} and
-                a.date      >= '{$start}' and 
-                a.date      <= '{$end}'
-            GROUP BY `sort_key`
-            ORDER BY `sort_key` ASC";
-    
-    $sth = $pdo2->prepare($sql);
-    $sth->execute();
-    $rows = $sth->fetchAll(PDO::FETCH_ASSOC);
-    
-    // ── Index DB results by sort_key (YYYY-MM) ──────────────────────────
-    $dataByMonth = [];
-    foreach ($rows as $row) {
-        $dataByMonth[$row['sort_key']] = $row;
-    }
-    
-    // ── Always build 12 months, accumulate running balance ──────────────
-    $labels  = [];
-    $balance = [];
-    $running = $prior_balance;
-    
-    for ($i = 11; $i >= 0; $i--) {
-        $dt    = (clone $now)->modify("-{$i} months");
-        $key   = $dt->format('Y-m');
-        $label = $dt->format('M');
-    
-        $month_in  = isset($dataByMonth[$key]) ? (float)$dataByMonth[$key]['stock_in']  : 0;
-        $month_out = isset($dataByMonth[$key]) ? (float)$dataByMonth[$key]['stock_out'] : 0;
-    
-        $running += ($month_in - $month_out);
-    
-        $labels[]  = $label;
-        $balance[] = round($running, 2);
-    }
-    
-    // ── Response ─────────────────────────────────────────────────────────
-    $output = [
-        'labels'  => $labels,
-        'balance' => $balance,
-    ];
-    
-    $answer["output"] = $output;
-    $answer["success"] = 1;
+    $report = new ReportManager($pdo2, $company_id);
+    $answer['output']  = $report->getWarehouseStockTrend((int)$data['warehouse']);
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>

app/ics/api/engine_report/warehouse_balance.php

@@ -1,24 +1,10 @@
-<?php 
+<?php
     session_start();
-
     require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/ReportManager.php';
 
-
-    $sql = "SELECT SUM(total_in) as total_in, SUM(total_out) as total_out, COUNT(DISTINCT warehouse_id) as total_warehouse
-        FROM warehouse_balance a
-        WHERE 
-            a.company_id = :company_id
-        ";
-    $sth = $pdo2->prepare($sql);
-    $sth->execute([
-        ":company_id" => $company_id
-    ]);
-    db_check($sth, $answer);
-
-    $output = $sth->fetch(PDO::FETCH_ASSOC);
-    
-    $answer["output"] = $output;
-    $answer["success"] = 1;
+    $report = new ReportManager($pdo2, $company_id);
+    $answer['output']  = $report->getWarehouseBalanceSummary();
+    $answer['success'] = 1;
     exit(json_encode($answer));
-
 ?>