add export excel and pdf district payment recaps

app/Exports/DistrictPaymentRecapExport.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Exports;
+
+use App\Models\PbgTaskGoogleSheet;
+use Illuminate\Support\Facades\DB;
+use Maatwebsite\Excel\Concerns\FromCollection;
+use Maatwebsite\Excel\Concerns\WithHeadings;
+
+class DistrictPaymentRecapExport implements FromCollection, WithHeadings
+{
+    /**
+    * @return \Illuminate\Support\Collection
+    */
+    public function collection()
+    {
+        return PbgTaskGoogleSheet::select(
+                    'kecamatan',
+                    DB::raw('SUM(nilai_retribusi_keseluruhan_simbg) as total')
+                )
+                ->groupBy('kecamatan')->get();
+    }
+
+    public function headings(): array{
+        return [
+            'Kecamatan',
+            'Total'
+        ];
+    }
+    
+}