fix feature report stock product

app/Http/Controllers/Reports/ReportStockProductsController.php

@@ -0,0 +1,102 @@
+<?php
+
+namespace App\Http\Controllers\Reports;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+use App\Models\Menu;
+use App\Models\Product;
+use App\Models\Dealer;
+use App\Models\Stock;
+use App\Models\StockLog;
+use App\Services\StockReportService;
+use App\Exports\StockProductsExport;
+use Illuminate\Support\Facades\Gate;
+use Illuminate\Support\Facades\Log;
+use Yajra\DataTables\DataTables;
+use Carbon\Carbon;
+use Illuminate\Support\Facades\DB;
+use Maatwebsite\Excel\Facades\Excel;
+
+class ReportStockProductsController extends Controller
+{
+    public function index(Request $request)
+    {
+        $menu = Menu::where('link','reports.stock-product.index')->first();
+        abort_if(!Gate::allows('view', $menu), 403);
+        
+        return view('reports.stock-products');
+    }
+
+    public function getData(Request $request)
+    {
+        $menu = Menu::where('link','reports.stock-product.index')->first();
+        abort_if(!Gate::allows('view', $menu), 403);
+
+        if ($request->ajax()) {
+            $filterDate = $request->get('filter_date');
+            
+            $stockService = new StockReportService();
+            $reportData = $stockService->getOptimizedStockReportData($filterDate);
+            
+            return DataTables::of($reportData['data'])
+                ->addIndexColumn()
+                ->addColumn('product_info', function($row) {
+                    return "<strong>{$row['product_name']}</strong><br><small class='text-muted'>{$row['product_code']}</small>";
+                })
+                ->addColumn('total_stock', function($row) {
+                    return number_format($row['total_stock'], 2);
+                })
+                ->rawColumns(['product_info'])
+                ->make(true);
+        }
+
+        return response()->json(['error' => 'Invalid request'], 400);
+    }
+
+    public function getDealers()
+    {
+        $dealers = Dealer::orderBy('name')->get(['id', 'name', 'dealer_code']);
+        return response()->json($dealers);
+    }
+
+    public function export(Request $request)
+    {
+        try {
+            $menu = Menu::where('link','reports.stock-product.index')->first();
+            abort_if(!Gate::allows('view', $menu), 403);
+
+            $filterDate = $request->get('filter_date');
+            
+            $stockService = new StockReportService();
+            $reportData = $stockService->getOptimizedStockReportData($filterDate);
+            
+            // Validate report data
+            if (!isset($reportData['data']) || !isset($reportData['dealers'])) {
+                throw new \Exception('Invalid report data structure');
+            }
+            
+            // Debug: Log dealer names to identify problematic characters
+            Log::info('Export data validation', [
+                'data_count' => count($reportData['data']),
+                'dealers_count' => count($reportData['dealers']),
+                'dealer_names' => $reportData['dealers']->pluck('name')->toArray(),
+                'first_data_row' => isset($reportData['data'][0]) ? array_keys($reportData['data'][0]) : []
+            ]);
+            
+            $fileName = 'laporan_stok_produk_' . ($filterDate ?: date('Y-m-d')) . '.xlsx';
+            
+            return Excel::download(new StockProductsExport($reportData), $fileName);
+            
+        } catch (\Exception $e) {
+            Log::error('Export error: ' . $e->getMessage(), [
+                'filter_date' => $request->get('filter_date'),
+                'trace' => $e->getTraceAsString()
+            ]);
+            
+            return back()->with('error', 'Gagal mengexport data: ' . $e->getMessage());
+        }
+    }
+
+
+}