<?php
namespace Tests\Unit\admin\Controllers;

use PHPUnit\Framework\TestCase;
use admin\Controllers\ShopProductController;
use Domain\Product\ProductRepository;

class ShopProductControllerTest extends TestCase
{
    private $repository;
    private $controller;

    protected function setUp(): void
    {
        $this->repository = $this->createMock(ProductRepository::class);
        $this->controller = new ShopProductController($this->repository);
    }

    public function testConstructorAcceptsRepository(): void
    {
        $controller = new ShopProductController($this->repository);
        $this->assertInstanceOf(ShopProductController::class, $controller);
    }

    public function testHasMassEditActionMethods(): void
    {
        $this->assertTrue(method_exists($this->controller, 'mass_edit'));
        $this->assertTrue(method_exists($this->controller, 'mass_edit_save'));
        $this->assertTrue(method_exists($this->controller, 'get_products_by_category'));
    }

    public function testMassEditReturnsString(): void
    {
        $reflection = new \ReflectionClass($this->controller);
        $this->assertEquals('string', (string)$reflection->getMethod('mass_edit')->getReturnType());
    }

    public function testMassEditSaveReturnsVoid(): void
    {
        $reflection = new \ReflectionClass($this->controller);
        $this->assertEquals('void', (string)$reflection->getMethod('mass_edit_save')->getReturnType());
    }

    public function testGetProductsByCategoryReturnsVoid(): void
    {
        $reflection = new \ReflectionClass($this->controller);
        $this->assertEquals('void', (string)$reflection->getMethod('get_products_by_category')->getReturnType());
    }

    public function testConstructorRequiresProductRepository(): void
    {
        $reflection = new \ReflectionClass(ShopProductController::class);
        $constructor = $reflection->getConstructor();
        $params = $constructor->getParameters();

        $this->assertCount(1, $params);
        $this->assertEquals('Domain\Product\ProductRepository', $params[0]->getType()->getName());
    }
}