feat: save ai usage

tests/Feature/GenerateAiMealPostTest.php

@@ -1,11 +1,15 @@
 <?php
 
 use App\Ai\Agents\MealMaker;
+use App\Enums\AiUsageStatus;
+use App\Enums\AiUsageType;
 use App\Enums\IngredientUnit;
 use App\Enums\MealPostType;
 use App\Enums\MealPostVisibility;
+use App\Models\AiUsage;
 use App\Models\MealPosts;
 use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Exceptions;
 use Illuminate\Support\Facades\Storage;
 use Laravel\Ai\Image;
 
@@ -119,4 +123,80 @@ it('generates an ai meal post with an image', function () {
             && $prompt->isLandscape()
             && $prompt->quality === 'medium'
     );
+
+    $usage = AiUsage::query()->sole();
+
+    expect($usage->user_id)->toBe($mealPost->user_id)
+        ->and($usage->type)->toBe(AiUsageType::MEAL_POST_GENERATION)
+        ->and($usage->status)->toBe(AiUsageStatus::SUCCESS)
+        ->and($usage->related_type)->toBe(MealPosts::class)
+        ->and($usage->related_id)->toBe($mealPost->id)
+        ->and($usage->input['image'])->toMatchArray([
+            'size' => '3:2',
+            'quality' => 'medium',
+            'storage_path' => 'meal-posts/ai-generated',
+        ])
+        ->and($usage->output)->toMatchArray([
+            'title' => 'Bowl de saumon croustillant',
+            'type' => MealPostType::LUNCH->value,
+            'calories' => 640,
+            'image_url' => $mealPost->image_url,
+            'ingredients' => [
+                [
+                    'position' => 1,
+                    'ingredient' => 'Riz vinaigre',
+                    'quantity' => 160,
+                    'unit' => IngredientUnit::GRAM->value,
+                ],
+                [
+                    'position' => 2,
+                    'ingredient' => 'Saumon',
+                    'quantity' => 130,
+                    'unit' => IngredientUnit::GRAM->value,
+                ],
+            ],
+        ]);
+});
+
+it('records a failed ai meal post generation attempt', function () {
+    Storage::fake('public');
+    Exceptions::fake();
+
+    config()->set('meal_posts.ai_generation.user_name', 'Chef IA');
+    config()->set('meal_posts.ai_generation.user_email', 'chef-ia@example.test');
+    config()->set('meal_posts.ai_generation.image_quality', 'medium');
+
+    MealMaker::fake([
+        [
+            'title' => 'Bowl impossible',
+            'caption' => 'Un bowl qui ne sera pas publie.',
+            'type' => MealPostType::LUNCH->value,
+            'calories' => 640,
+            'proteins' => 42.4,
+            'carbs' => 62.2,
+            'fats' => 24.8,
+            'ingredients' => [],
+            'image_prompt' => 'Photorealistic impossible bowl',
+        ],
+    ]);
+
+    Image::fake(
+        fn () => throw new \RuntimeException('Image provider unavailable')
+    );
+
+    $this->artisan('meal-posts:generate-ai')
+        ->assertExitCode(1);
+
+    Exceptions::assertReported(\RuntimeException::class);
+
+    expect(MealPosts::query()->where('ai_generated', true)->count())->toBe(0);
+
+    $usage = AiUsage::query()->sole();
+
+    expect($usage->user->email)->toBe('chef-ia@example.test')
+        ->and($usage->type)->toBe(AiUsageType::MEAL_POST_GENERATION)
+        ->and($usage->status)->toBe(AiUsageStatus::FAILED)
+        ->and($usage->input['image_prompt'])->toContain('impossible bowl')
+        ->and($usage->output)->toBeNull()
+        ->and($usage->error_message)->toContain('Image provider unavailable');
 });