<?php

namespace Tests\Unit;

use PHPUnit\Framework\TestCase;
use System\Classes\Request;

class RequestTest extends TestCase
{
    protected function setUp(): void
    {
        $_SERVER['REQUEST_URI']    = '/';
        $_SERVER['REQUEST_METHOD'] = 'GET';
    }

    protected function tearDown(): void
    {
        Request::$current = null;
        Request::$initial = null;
        unset($_SERVER['REQUEST_URI'], $_SERVER['REQUEST_METHOD'], $_SERVER['HTTP_X_REQUESTED_WITH']);
        $_GET  = [];
        $_POST = [];
    }

    public function testMethodGet(): void
    {
        $_SERVER['REQUEST_METHOD'] = 'GET';
        $req = Request::factory();
        $this->assertSame('GET', $req->method());
    }

    public function testMethodPost(): void
    {
        $_SERVER['REQUEST_METHOD'] = 'POST';
        $req = Request::factory();
        $this->assertSame('POST', $req->method());
    }

    public function testMethodDefaultsToGet(): void
    {
        unset($_SERVER['REQUEST_METHOD']);
        $req = Request::factory();
        $this->assertSame('GET', $req->method());
    }

    public function testMethodNormalizesToUppercase(): void
    {
        $_SERVER['REQUEST_METHOD'] = 'delete';
        $req = Request::factory();
        $this->assertSame('DELETE', $req->method());
    }

    public function testFactoryParsesRootUri(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $this->assertSame('Index', $req->controller());
        $this->assertSame('index', $req->action());
        $this->assertSame([], $req->params());
    }

    public function testFactoryParsesControllerAndAction(): void
    {
        $_SERVER['REQUEST_URI'] = '/index/about';
        $req = Request::factory();
        $this->assertSame('Index', $req->controller());
        $this->assertSame('about', $req->action());
    }

    public function testFactoryParsesParams(): void
    {
        $_SERVER['REQUEST_URI'] = '/index/show/hello/world';
        $req = Request::factory();
        $this->assertSame(['hello', 'world'], $req->params());
    }

    public function testParamByIndex(): void
    {
        $_SERVER['REQUEST_URI'] = '/index/show/42/extra';
        $req = Request::factory();
        $this->assertSame('42', $req->param(0));
        $this->assertSame('extra', $req->param(1));
    }

    public function testParamDefaultValue(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $this->assertNull($req->param(0));
        $this->assertSame('fallback', $req->param(0, 'fallback'));
    }

    public function testFactorySetsCurrentRequest(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $this->assertSame($req, Request::$current);
    }

    public function testUriGetter(): void
    {
        $_SERVER['REQUEST_URI'] = '/index/test';
        $req = Request::factory();
        $this->assertSame('index/test', $req->uri());
    }

    public function testUriQueryStringIsStripped(): void
    {
        $_SERVER['REQUEST_URI'] = '/index/test?foo=bar&baz=1';
        $req = Request::factory();
        $this->assertSame('index/test', $req->uri());
    }

    public function testInitialIsSetOnFirstCall(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $this->assertSame($req, Request::$initial);
    }

    public function testPostArraySetter(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $req->post(['name' => 'Ivan', 'age' => '30']);
        $this->assertSame(['name' => 'Ivan', 'age' => '30'], $req->post());
    }

    public function testPostKeyGetter(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $req->post(['name' => 'Ivan']);
        $this->assertSame('Ivan', $req->post('name'));
        $this->assertNull($req->post('missing'));
    }

    public function testPostKeySetter(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $req->post('key', 'value');
        $this->assertSame('value', $req->post('key'));
    }

    public function testQueryArraySetter(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $req->query(['page' => '2', 'sort' => 'name']);
        $this->assertSame(['page' => '2', 'sort' => 'name'], $req->query());
    }

    public function testQueryKeyGetter(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $req->query(['page' => '3']);
        $this->assertSame('3', $req->query('page'));
        $this->assertNull($req->query('missing'));
    }

    public function testBodyGetterSetter(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $this->assertSame('', $req->body());
        $req->body('{"key":"val"}');
        $this->assertSame('{"key":"val"}', $req->body());
    }

    public function testIsAjaxFalseByDefault(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req = Request::factory();
        $this->assertFalse($req->is_ajax());
    }

    public function testIsAjaxTrueWhenHeaderSet(): void
    {
        $_SERVER['REQUEST_URI']          = '/';
        $_SERVER['HTTP_X_REQUESTED_WITH'] = 'XMLHttpRequest';
        $req = Request::factory();
        $this->assertTrue($req->is_ajax());
    }

    public function testMethodSetter(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $req  = Request::factory();
        $same = $req->method('patch');
        $this->assertSame($req, $same);
        $this->assertSame('PATCH', $req->method());
    }

    public function testFactoryPopulatesGetFromGlobals(): void
    {
        $_SERVER['REQUEST_URI'] = '/';
        $_GET = ['foo' => 'bar'];
        $req  = Request::factory();
        $this->assertSame('bar', $req->query('foo'));
    }

    public function testFactoryPopulatesPostFromGlobals(): void
    {
        $_SERVER['REQUEST_URI']    = '/';
        $_SERVER['REQUEST_METHOD'] = 'POST';
        $_POST = ['field' => 'hello'];
        $req   = Request::factory();
        $this->assertSame('hello', $req->post('field'));
    }
}