<?php

namespace Tests\Feature;

use Illuminate\Support\Facades\Http;
use Illuminate\Http\Client\Request as ClientRequest;
use Tests\TestCase;

class TranslationApiTest extends TestCase
{
    public function test_it_lists_languages_from_the_configured_engine(): void
    {
        config(['services.translation.url' => 'http://translator.test']);
        Http::fake(['translator.test/languages' => Http::response([['code' => 'pt', 'name' => 'Portuguese', 'targets' => ['en']]])]);

        $this->getJson('/api/translate/languages')->assertOk()->assertJsonPath('0.targets.0', 'en');
    }

    public function test_it_translates_and_reports_engine_failures(): void
    {
        config(['services.translation.url' => 'http://translator.test']);
        Http::fake(['translator.test/translate' => Http::sequence()->push(['translatedText' => 'Hello'])->push([], 500)]);
        $input = ['text' => 'Olá', 'source_lang' => 'pt', 'target_lang' => 'en'];

        $this->postJson('/api/translate', $input)->assertOk()->assertJsonPath('translated_text', 'Hello');
        $this->postJson('/api/translate', $input)->assertStatus(503);
    }

    public function test_it_translates_text_batches_for_full_page_translation(): void
    {
        config(['services.translation.url' => 'http://translator.test']);
        Http::fake(['translator.test/translate' => Http::response(['translatedText' => ['Home', 'About us']])]);

        $this->postJson('/api/translate', [
            'text' => ['Início', 'Sobre nós'],
            'source_lang' => 'auto',
            'target_lang' => 'en',
        ])->assertOk()
            ->assertJsonPath('translated_text.0', 'Home')
            ->assertJsonPath('translated_text.1', 'About us');

        Http::assertSent(fn (ClientRequest $request) => $request['q'] === ['Início', 'Sobre nós']);
    }

    public function test_it_rejects_translation_batches_that_exceed_the_request_limit(): void
    {
        $this->postJson('/api/translate', [
            'text' => array_fill(0, 9, 'Texto'),
            'source_lang' => 'auto',
            'target_lang' => 'en',
        ])->assertUnprocessable();
    }
}