api destroy exercise

app/Http/Controllers/Api/ExerciseController.php

@@ -10,6 +10,7 @@ use App\Services\QuestionService;
 use App\Services\SkillService;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
+use Symfony\Component\HttpFoundation\Response;
 
 class ExerciseController extends Controller
 {
@@ -35,14 +36,14 @@ class ExerciseController extends Controller
                 'status' => true,
                 'data' => $exercises,
                 'message' => 'Không có dữ liệu.',
-            ]);
+            ], Response::HTTP_NOT_FOUND);
         }
 
         return response()->json([
             'status' => true,
             'data' => $exercises,
             'message' => 'Lấy danh sách đề thi thành công.',
-        ]);
+        ], Response::HTTP_OK);
     }
 
     public function create(CreateExerciseRequest $request)
@@ -65,14 +66,14 @@ class ExerciseController extends Controller
                 'success' => true,
                 'message' => 'Tạo đề thi thành công.',
                 'exercise_id' => $exerciseId
-            ], 201);
+            ], Response::HTTP_OK);
         } catch (\Exception $e) {
             DB::rollBack();
             return response()->json([
                 'success' => false,
                 'message' => 'Tạo đề thi thất bại.',
                 'error' => $e->getMessage()
-            ], 500);
+            ], Response::HTTP_INTERNAL_SERVER_ERROR);
         }
     }
 
@@ -85,13 +86,30 @@ class ExerciseController extends Controller
                 'status' => true,
                 'data' => $exercise,
                 'message' => 'Không có dữ liệu.',
-            ]);
+            ], Response::HTTP_NOT_FOUND);
         }
 
         return response()->json([
             'status' => true,
             'data' => $exercise,
             'message' => 'Lấy danh sách đề thi thành công.',
-        ]);
+        ], Response::HTTP_OK);
+    }
+
+    public function destroy($id)
+    {
+        $result = $this->exerciseService->destroy($id);
+
+        if (!$result['status']) {
+            return response()->json([
+                'status' => false,
+                'message' => $result['message'],
+            ], Response::HTTP_INTERNAL_SERVER_ERROR);
+        }
+
+        return response()->json([
+            'status' => true,
+            'message' => $result['message'],
+        ], Response::HTTP_OK);
     }
 }

app/Services/ExerciseService.php

@@ -4,6 +4,13 @@ namespace App\Services;
 
 use App\Http\Resources\ExerciseResource;
 use App\Models\Exercise;
+use App\Models\ExerciseSkill;
+use App\Models\Question;
+use App\Models\QuestionBlank;
+use App\Models\QuestionChoice;
+use App\Models\QuestionGroup;
+use Illuminate\Database\Eloquent\ModelNotFoundException;
+use Illuminate\Support\Facades\DB;
 
 class ExerciseService
 {
@@ -71,4 +78,42 @@ class ExerciseService
 
         return new ExerciseResource($exercise);
     }
+
+    public function destroy($id)
+    {
+        try {
+            $exercise = Exercise::findOrFail($id);
+
+            DB::transaction(function () use ($exercise) {
+
+                $groupIds = $exercise->questionGroups()->pluck('id');
+                $questionIds = DB::table('se_questions')
+                    ->whereIn('group_id', $groupIds)
+                    ->pluck('id');
+
+                QuestionChoice::whereIn('question_id', $questionIds)->delete();
+                QuestionBlank::whereIn('question_id', $questionIds)->delete();
+                Question::whereIn('id', $questionIds)->delete();
+                QuestionGroup::whereIn('id', $groupIds)->delete();
+                ExerciseSkill::where('exercise_id', $exercise->id)->delete();
+
+                $exercise->delete();
+            });
+
+            return [
+                'status' => true,
+                'message' => 'Xoá đề thi thành công.'
+            ];
+        } catch (ModelNotFoundException $e) {
+            return [
+                'status' => false,
+                'message' => 'Không tìm thấy đề thi.'
+            ];
+        } catch (\Exception $e) {
+            return [
+                'status' => false,
+                'message' => 'Lỗi hệ thống: ' . $e->getMessage()
+            ];
+        }
+    }
 }

app/Services/ExerciseSkillService.php

@@ -15,11 +15,14 @@ class ExerciseSkillService
      */
     public function handleSkillsForExercise($skillIds, $exerciseId)
     {
+        $now = now();
         $data = [];
         foreach ($skillIds as $skillId) {
             $data[] = [
                 'exercise_id' => $exerciseId,
                 'skill_id' => $skillId,
+                'created_at' => $now,
+                'updated_at' => $now,
             ];
         }
 

routes/api.php

@@ -16,4 +16,5 @@ Route::middleware('auth:api')->group(function () {
     Route::get('/exercises', [ExerciseController::class, 'index'])->name('exercise.index');
     Route::post('/exercise/create', [ExerciseController::class, 'create'])->name('exercise.create');
     Route::get('/exercise/{id}', [ExerciseController::class, 'detail'])->name('exercise.detail');
+    Route::delete('/exercise/{id}', [ExerciseController::class, 'destroy']);
 });