add timer to quiz

app/Http/Requests/QuizRequest.php

@@ -22,6 +22,7 @@ public function rules(): array
         return [
             "name" => ["required", "string"],
             "scheduled_at" => ["date", "date_format:Y-m-d H:i:s", "after:now"],
+            "duration" => ["integer", "min:1"],
         ];
     }
 }

app/Http/Resources/QuizResource.php

@@ -15,6 +15,7 @@ public function toArray($request): array
             "name" => $this->name,
             "createdAt" => $this->created_at,
             "updatedAt" => $this->updated_at,
+            "duration" => $this->duration,
             "locked" => $this->isLocked,
             "questions" => QuestionResource::collection($this->questions),
         ];

app/Models/Quiz.php

@@ -18,7 +18,9 @@
  * @property Carbon $created_at
  * @property Carbon $updated_at
  * @property Carbon $scheduled_at
+ * @property ?int $duration
  * @property bool $isLocked
+ * @property ?Carbon $closeAt
  * @property Collection<Question> $questions
  * @property Collection<Answer> $answers
  */
@@ -29,6 +31,7 @@ class Quiz extends Model
     protected $fillable = [
         "name",
         "scheduled_at",
+        "duration"
     ];
 
     public function questions(): HasMany
@@ -43,7 +46,17 @@ public function answers(): HasManyThrough
 
     public function isLocked(): Attribute
     {
-        return Attribute::get(fn(): bool => $this->scheduled_at !== null && $this->scheduled_at <= Carbon::now());
+        return Attribute::get(fn(): bool => $this->canBeScheduled() && $this->scheduled_at <= Carbon::now());
+    }
+
+    public function closeAt(): Attribute
+    {
+        return Attribute::get(fn(): ?Carbon => $this->canBeScheduled() ? $this->scheduled_at->copy()->addSeconds($this->duration) : null);
+    }
+
+    protected function canBeScheduled(): bool
+    {
+        return $this->scheduled_at !== null && $this->duration !== null;
     }
 
     public function clone(): self
@@ -61,6 +74,7 @@ public function clone(): self
     public function createSubmission(User $user): QuizSubmission
     {
         $submission = new QuizSubmission();
+        $submission->closed_at = $this->closeAt;
         $submission->quiz()->associate($this);
         $submission->user()->associate($user);
         $submission->save();

app/Models/QuizSubmission.php

@@ -16,7 +16,7 @@
  * @property int $id
  * @property Carbon $created_at
  * @property Carbon $updated_at
- * @property ?Carbon $closed_at
+ * @property Carbon $closed_at
  * @property int $quiz_id
  * @property int $user_id
  * @property bool $isClosed

database/factories/QuizFactory.php

@@ -7,6 +7,7 @@
 use App\Models\Quiz;
 use Carbon\Carbon;
 use Illuminate\Database\Eloquent\Factories\Factory;
+use function rand;
 
 /**
  * @extends Factory<Quiz>
@@ -17,6 +18,7 @@ public function definition(): array
     {
         return [
             "name" => fake()->name(),
+            "duration" => rand(3600, 7200),
         ];
     }
 

database/migrations/2024_08_16_095409_add_duration_to_quizzes_table.php

@@ -0,0 +1,22 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('quizzes', function (Blueprint $table) {
+            $table->unsignedInteger('duration')->nullable();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('quizzes', function (Blueprint $table) {
+            $table->dropColumn('duration');
+        });
+    }
+};

resources/js/Types/Quiz.d.ts

@@ -5,6 +5,7 @@ export interface Quiz {
   name: string
   createdAt: number
   updatedAt: number
+  duration?: number
   locked: boolean
   questions: Question[]
 }

tests/Feature/QuizTest.php

@@ -157,6 +157,14 @@ public function testUserCannotCreateInvalidQuiz(): void
             ->post("/admin/quizzes", ["name" => "correct", "scheduled_at" => "2022-01-01 01:01:01"])
             ->assertRedirect("/")->assertSessionHasErrors(["scheduled_at"]);
 
+        $this->from("/")
+            ->post("/admin/quizzes", ["name" => "correct", "duration" => -100])
+            ->assertRedirect("/")->assertSessionHasErrors(["duration"]);
+
+        $this->from("/")
+            ->post("/admin/quizzes", ["name" => "correct", "duration" => 0])
+            ->assertRedirect("/")->assertSessionHasErrors(["duration"]);
+
         $this->assertDatabaseCount("quizzes", 0);
     }
 
@@ -166,10 +174,10 @@ public function testUserCanEditQuiz(): void
 
         $this->actingAs($this->user)
             ->from("/")
-            ->patch("/admin/quizzes/{$quiz->id}", ["name" => "New quiz", "scheduled_at" => "2024-03-10 12:15:00"])
+            ->patch("/admin/quizzes/{$quiz->id}", ["name" => "New quiz", "scheduled_at" => "2024-03-10 12:15:00", "duration" => 7200])
             ->assertRedirect("/");
 
-        $this->assertDatabaseHas("quizzes", ["name" => "New quiz", "scheduled_at" => "2024-03-10 12:15:00"]);
+        $this->assertDatabaseHas("quizzes", ["name" => "New quiz", "scheduled_at" => "2024-03-10 12:15:00", "duration" => 7200]);
     }
 
     public function testUserCannotEditQuizThatNotExisted(): void
@@ -201,6 +209,14 @@ public function testUserCannotMakeInvalidEdit(): void
             ->patch("/admin/quizzes/{$quiz->id}", ["name" => "correct", "scheduled_at" => "2022-01-01 01:01:01"])
             ->assertRedirect("/")->assertSessionHasErrors(["scheduled_at"]);
 
+        $this->from("/")
+            ->patch("/admin/quizzes/{$quiz->id}", ["name" => "correct", "duration" => -100])
+            ->assertRedirect("/")->assertSessionHasErrors(["duration"]);
+
+        $this->from("/")
+            ->patch("/admin/quizzes/{$quiz->id}", ["name" => "correct", "duration" => 0])
+            ->assertRedirect("/")->assertSessionHasErrors(["duration"]);
+
         $this->assertDatabaseHas("quizzes", ["name" => "Old quiz"]);
     }