<?php declare(strict_types=1);

use PHPUnit\Framework\TestCase;
use Sharkk\Router\SegmentRouter;

final class SegmentRouterTest extends TestCase
{
    private SegmentRouter $router;

    protected function setUp(): void
    {
        $this->router = new SegmentRouter();
    }

    public function testAddAndLookupRoute(): void
    {
        $routes = [];
        SegmentRouter::add($routes, 'GET', '/blog/:id', function($id) {
            return "Blog post $id";
        });

        $result = SegmentRouter::lookup($routes, 'GET', '/blog/123');
        $this->assertEquals(200, $result['code']);
        $this->assertIsCallable($result['handler']);
        $this->assertEquals(['123'], $result['params']);
        $this->assertEquals("Blog post 123", $result['handler'](...$result['params']));
    }

    public function testLookupNotFound(): void
    {
        $routes = [];
        SegmentRouter::add($routes, 'GET', '/blog/:id', function($id) {
            return "Blog post $id";
        });

        $result = SegmentRouter::lookup($routes, 'GET', '/nonexistent');
        $this->assertEquals(404, $result['code']);
        $this->assertNull($result['handler']);
        $this->assertEmpty($result['params']);
    }

    public function testMethodNotAllowed(): void
    {
        $routes = [];
        SegmentRouter::add($routes, 'GET', '/blog/:id', function($id) {
            return "Blog post $id";
        });

        $result = SegmentRouter::lookup($routes, 'POST', '/blog/123');
        $this->assertEquals(405, $result['code']);
        $this->assertNull($result['handler']);
        $this->assertEmpty($result['params']);
    }

    public function testClearRoutes(): void
    {
        $routes = [];
        SegmentRouter::add($routes, 'GET', '/blog/:id', function($id) {
            return "Blog post $id";
        });

        SegmentRouter::clear($routes);
        $this->assertEmpty($routes);
    }

    public function testAddMultipleMethods(): void
    {
        $routes = [];
        SegmentRouter::add($routes, 'GET', '/blog/:id', function($id) {
            return "GET Blog post $id";
        });
        SegmentRouter::add($routes, 'POST', '/blog/:id', function($id) {
            return "POST Blog post $id";
        });

        $resultGet = SegmentRouter::lookup($routes, 'GET', '/blog/123');
        $this->assertEquals(200, $resultGet['code']);
        $this->assertEquals("GET Blog post 123", $resultGet['handler'](...$resultGet['params']));

        $resultPost = SegmentRouter::lookup($routes, 'POST', '/blog/123');
        $this->assertEquals(200, $resultPost['code']);
        $this->assertEquals("POST Blog post 123", $resultPost['handler'](...$resultPost['params']));
    }
}