<?php

namespace MrMySQL\YoutubeTranscript\Tests;

use PHPUnit\Framework\TestCase;

use MrMySQL\YoutubeTranscript\Transcript;

use MrMySQL\YoutubeTranscript\Exception\NotTranslatableException;

use MrMySQL\YoutubeTranscript\Exception\YouTubeRequestFailedException;

use MrMySQL\YoutubeTranscript\Exception\TranslationLanguageNotAvailableException;

use PHPUnit\Framework\MockObject\MockObject;

use Psr\Http\Client\ClientInterface;

use Psr\Http\Message\RequestFactoryInterface;

use Psr\Http\Message\RequestInterface;

use Psr\Http\Message\ResponseInterface;

use Psr\Http\Message\StreamInterface;

class TranscriptTest extends TestCase

{

private ClientInterface&MockObject $httpClient;

private RequestFactoryInterface&MockObject $requestFactory;

protected function setUp(): void

{

$this->httpClient = $this->createMock(ClientInterface::class);

$this->requestFactory = $this->createMock(RequestFactoryInterface::class);

}

public function testFetchSuccess(): void

{

$request = $this->createMock(RequestInterface::class);

$response = $this->createMock(ResponseInterface::class);

$response_stream = $this->createMock(StreamInterface::class);

$response->method('getStatusCode')->willReturn(200);

$response->method('getBody')->willReturn($response_stream);

$response_stream->method('getContents')->willReturn('<transcript><text start="0" dur="1">Hello World</text></transcript>');

$this->requestFactory->method('createRequest')->willReturn($request);

$this->httpClient->method('sendRequest')->willReturn($response);

$transcript = new Transcript(

$this->httpClient,

$this->requestFactory,

'video123',

'https://example.com',

'English',

'en',

false,

[]

);

$result = $transcript->fetch();

$this->assertNotEmpty($result);

}

public function testFetchFailure(): void

{

$request = $this->createMock(RequestInterface::class);

$this->requestFactory->method('createRequest')->willReturn($request);

$this->httpClient

->method('sendRequest')

->willThrowException(new \RuntimeException('Request failed'));

$transcript = new Transcript(

$this->httpClient,

$this->requestFactory,

'video123',

'https://example.com',

'English',

'en',

false,

[]

);

$this->expectException(YouTubeRequestFailedException::class);

$transcript->fetch();

}

public function testTranslateSuccess(): void

{

$transcript = new Transcript(

$this->httpClient,

$this->requestFactory,

'video123',

'https://example.com',

'English',

'en',

false,

[

['language' => 'Spanish', 'language_code' => 'es']

]

);

$translatedTranscript = $transcript->translate('es');

$this->assertInstanceOf(Transcript::class, $translatedTranscript);

$this->assertEquals('https://example.com&tlang=es', $translatedTranscript->getUrl());

$this->assertEquals('Spanish', $translatedTranscript->language);

}

public function testTranslateFailureWhenNotTranslatable(): void

{

$transcript = new Transcript(

$this->httpClient,

$this->requestFactory,

'video123',

'https://example.com',

'English',

'en',

false,

[]

);

$this->expectException(NotTranslatableException::class);

$transcript->translate('es');

}

public function testTranslateFailureWhenLanguageNotAvailable(): void

{

$transcript = new Transcript(

$this->httpClient,

$this->requestFactory,

'video123',

'https://example.com',

'English',

'en',

false,

[

['language' => 'Spanish', 'language_code' => 'es']

]

);

$this->expectException(TranslationLanguageNotAvailableException::class);

$transcript->translate('fr');

}

public function testToString(): void

{

$transcript = new Transcript(

$this->httpClient,

$this->requestFactory,

'video123',

'https://example.com',

'English',

'en',

false,

[

['language' => 'Spanish', 'language_code' => 'es']

]

);

$this->assertEquals('en ("English")[TRANSLATABLE]', (string) $transcript);

}

public function testIsGenerated(): void

{

$transcript = new Transcript(

$this->httpClient,

$this->requestFactory,

'video123',

'https://example.com',

'English',

'en',

true,

[]

);

$this->assertTrue($transcript->isGenerated());

$transcript = new Transcript(

$this->httpClient,

$this->requestFactory,

'video123',

'https://example.com',

'English',

'en',

false,

[]

);

$this->assertFalse($transcript->isGenerated());

}

}