feat: create new UseCase about Region Count

Author: zigzagdev

src/app/Packages/Features/QueryUseCases/Tests/UseCase/GetCountEachRegionUseCaseTest.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace App\Packages\Features\QueryUseCases\Tests\UseCase;
+
+use App\Packages\Features\QueryUseCases\Dto\RegionCountDto;
+use App\Packages\Features\QueryUseCases\QueryServiceInterface\WorldHeritageQueryServiceInterface;
+use App\Packages\Features\QueryUseCases\UseCase\GetCountEachRegionUseCase;
+use Tests\TestCase;
+use Mockery;
+
+class GetCountEachRegionUseCaseTest extends TestCase
+{
+    protected function setUp(): void
+    {
+        parent::setUp();
+    }
+
+    public function tearDown(): void
+    {
+        parent::tearDown();
+    }
+
+    private function mockQueryService(): WorldHeritageQueryServiceInterface
+    {
+        $mock = Mockery::mock(WorldHeritageQueryServiceInterface::class);
+
+        $mock->shouldReceive('getEachRegionsHeritagesCount')
+            ->andReturn(self::arrayData());
+
+        return $mock;
+    }
+
+    private static function arrayData(): array
+    {
+        return [
+            'Asia' => 10,
+            'Europe' => 5,
+            'Africa' => 3,
+            'South America' => 2,
+            'North America' => 1,
+            'Oceania' => 4,
+        ];
+    }
+
+    public function test_use_case_check_type(): void
+    {
+        $useCase = new GetCountEachRegionUseCase(
+            $this->mockQueryService()
+        );
+
+        $result = $useCase->handle();
+
+        $this->assertInstanceOf(RegionCountDto::class, $result[0]);
+    }
+
+    public function test_use_case_check_data(): void
+    {
+        $useCase = new GetCountEachRegionUseCase(
+            $this->mockQueryService()
+        );
+
+        $result = $useCase->handle();
+
+        $this->assertSame('Asia', $result[0]->region);
+        $this->assertSame(10, $result[0]->count);
+    }
+}

src/app/Packages/Features/QueryUseCases/UseCase/GetCountEachRegionUseCase.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Packages\Features\QueryUseCases\UseCase;
+
+use App\Packages\Features\QueryUseCases\Dto\RegionCountDto;
+use App\Packages\Features\QueryUseCases\QueryServiceInterface\WorldHeritageQueryServiceInterface;
+
+class GetCountEachRegionUseCase
+{
+    public function __construct(
+        private readonly WorldHeritageQueryServiceInterface $queryService
+    ) {}
+
+    /**
+     * @return RegionCountDto[]
+     */
+    public function handle(): array
+    {
+        $result = $this->queryService->getEachRegionsHeritagesCount();
+
+        return array_map(
+            fn(string $region, int $count) => new RegionCountDto(
+                region: $region,
+                count: $count,
+            ),
+            array_keys($result),
+            array_values($result),
+        );
+    }
+}