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app/Http/Controllers/Admin/PrizeController.php

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+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\AuditLog;
+use App\Models\ImportLog;
+use App\Models\Prize;
+use App\Services\PrizeImportService;
+use App\Support\Spreadsheet;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Illuminate\View\View;
+
+class PrizeController extends Controller
+{
+    public function index(): View
+    {
+        $prizes = Prize::query()->ordered()->with('drawResults.member')->paginate(30);
+        $importLogs = ImportLog::where('type', 'prizes')->with('importedBy')->latest()->take(5)->get();
+
+        return view('admin.prizes.index', compact('prizes', 'importLogs'));
+    }
+
+    public function edit(Prize $prize): View
+    {
+        return view('admin.prizes.edit', compact('prize'));
+    }
+
+    public function update(Request $request, Prize $prize): RedirectResponse
+    {
+        $data = $request->validate([
+            'kod_hadiah' => ['nullable', 'string', 'max:255'],
+            'nama_hadiah' => ['required', 'string', 'max:255'],
+            'kategori' => ['nullable', 'string', 'max:255'],
+            'nilai_anggaran' => ['nullable', 'numeric', 'min:0'],
+            'draw_order' => ['required', 'integer', 'min:0'],
+        ]);
+
+        $prize->update($data);
+        AuditLog::record('prize.update', "Kemaskini hadiah: {$prize->nama_hadiah}", $prize);
+
+        return redirect()->route('admin.prizes.index')->with('success', 'Maklumat hadiah dikemaskini.');
+    }
+
+    public function destroy(Prize $prize): RedirectResponse
+    {
+        if ($prize->status === Prize::STATUS_DISAHKAN) {
+            return back()->with('error', 'Hadiah yang sudah ada pemenang disahkan tidak boleh dipadam.');
+        }
+
+        $nama = $prize->nama_hadiah;
+        $prize->delete();
+        AuditLog::record('prize.delete', "Padam hadiah: {$nama}");
+
+        return redirect()->route('admin.prizes.index')->with('success', "Hadiah '{$nama}' dipadam.");
+    }
+
+    public function showImport(): View
+    {
+        $logs = ImportLog::where('type', 'prizes')->with('importedBy')->latest()->take(15)->get();
+
+        return view('admin.prizes.import', compact('logs'));
+    }
+
+    public function import(Request $request, PrizeImportService $service): RedirectResponse
+    {
+        $request->validate([
+            'file' => ['required', 'file', 'mimes:csv,txt,xlsx,xls', 'max:10240'],
+        ]);
+
+        $file = $request->file('file');
+        $rows = Spreadsheet::read($file->getRealPath(), $file->getClientOriginalExtension());
+
+        $log = $service->import($rows, $file->getClientOriginalName(), $request->user()->id);
+        AuditLog::record('prize.import', "Import hadiah: {$log->filename}", $log, [
+            'success' => $log->success_count,
+            'failed' => $log->failed_count,
+        ]);
+
+        return redirect()->route('admin.prizes.import')->with('import_result', $log->id);
+    }
+}