<?php

declare(strict_types=1);

namespace Tests\Unit;

use ElixForms\Common\HttpClient;
use GuzzleHttp\Client;
use GuzzleHttp\Handler\MockHandler;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\Middleware;
use GuzzleHttp\Psr7\Response;
use PHPUnit\Framework\TestCase;

final class HttpClientTest extends TestCase
{
    public function testGetUsesQueryHeadersAuthenticationAndTimeout(): void
    {
        $history = [];
        $stack = HandlerStack::create(new MockHandler([new Response(200, [], '{"ok":true}')]));
        $stack->push(Middleware::history($history));

        $client = new HttpClient(
            ['Accept' => 'application/json', 'X-Default' => 'default'],
            new Client(['handler' => $stack])
        );
        $client->setBasicAuth('user', 'secret')->setTimeout(5);

        $result = $client->get(
            'https://example.test/resource',
            ['term' => 'Mario Rossi'],
            ['X-Default' => 'override']
        );

        self::assertSame('{"ok":true}', $result);
        self::assertCount(1, $history);
        self::assertSame('GET', $history[0]['request']->getMethod());
        self::assertSame('term=Mario%20Rossi', $history[0]['request']->getUri()->getQuery());
        self::assertSame('application/json', $history[0]['request']->getHeaderLine('Accept'));
        self::assertSame('override', $history[0]['request']->getHeaderLine('X-Default'));
        self::assertSame(['user', 'secret'], $history[0]['options']['auth']);
        self::assertSame(5, $history[0]['options']['timeout']);
        self::assertSame(5, $history[0]['options']['connect_timeout']);
    }

    public function testPostEncodesArrayAsFormData(): void
    {
        $history = [];
        $stack = HandlerStack::create(new MockHandler([new Response(200, [], 'saved')]));
        $stack->push(Middleware::history($history));
        $client = new HttpClient([], new Client(['handler' => $stack]));

        self::assertSame('saved', $client->post('https://example.test/resource', ['name' => 'Mario Rossi']));
        self::assertSame('POST', $history[0]['request']->getMethod());
        self::assertSame('name=Mario+Rossi', (string)$history[0]['request']->getBody());
    }

    public function testHttpErrorsAreExposedWithoutResponseBody(): void
    {
        $client = new HttpClient([], new Client([
            'handler' => HandlerStack::create(new MockHandler([
                new Response(503, [], 'sensitive upstream response'),
            ])),
        ]));

        $this->expectException(\RuntimeException::class);
        $this->expectExceptionMessage('Richiesta fallita con codice di stato HTTP 503.');

        $client->get('https://example.test/resource');
    }

    public function testTimeoutMustBePositive(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        (new HttpClient())->setTimeout(0);
    }
}