<?php

namespace AppTest\Service;

use App\Service\CameraPictureManagerService;
use PHPUnit\Framework\TestCase;
use Prophecy\Argument;
use Zend\Config\Config;
use Zend\Diactoros\Response;

class CameraPictureManagerServiceTest extends TestCase
{
    const EXISTING_CAM_DIR = 'cam1';
    const EXISTING_IMAGE = 'img1.png';
    const MISSING_IMAGE = 'imgXX.png';
    const TEST_DATA_DIR = 'test/data';

    /** @var Config */
    protected $config;

    /**
     * @throws \Psr\Container\ContainerExceptionInterface
     * @throws \Psr\Container\NotFoundExceptionInterface
     */
    protected function setUp()
    {
        $this->config = $this->prophesize(Config::class);
    }

    public function testThrowsExceptionOnMissingConfig()
    {
        $this->config->get('cameraImageBaseFolder', Argument::any())->willReturn(false);
        $cameraPictureManager = new CameraPictureManagerService($this->config->reveal());
        $this->expectException(\InvalidArgumentException::class);
        $cameraPictureManager->getLatestCameraPictures();
    }

    public function testThrowsExceptionOnBadConfig()
    {
        $this->config->get('cameraImageBaseFolder', Argument::any())->willReturn("--sadf");
        $cameraPictureManager = new CameraPictureManagerService($this->config->reveal());
        $this->expectException(\InvalidArgumentException::class);
        $cameraPictureManager->getLatestCameraPictures();
    }

    public function testReturnsImages()
    {
        $this->config->get('cameraImageBaseFolder', Argument::any())->willReturn(self::TEST_DATA_DIR);
        $cameraPictureManager = new CameraPictureManagerService($this->config->reveal());
        $result = $cameraPictureManager->getLatestCameraPictures();
        $this->assertCount(3, $result);
    }

    public function testThrowsExceptionOnBadImage()
    {
        $this->config->get('cameraImageBaseFolder', Argument::any())->willReturn(self::TEST_DATA_DIR);
        $cameraPictureManager = new CameraPictureManagerService($this->config->reveal());
        $this->expectException(\InvalidArgumentException::class);
        $cameraPictureManager->getCameraImage(self::EXISTING_CAM_DIR, self::MISSING_IMAGE);
    }

    public function testReturnsResponseOnExistingImage()
    {
        $this->config->get('cameraImageBaseFolder', Argument::any())->willReturn(self::TEST_DATA_DIR);
        $cameraPictureManager = new CameraPictureManagerService($this->config->reveal());
        $result = $cameraPictureManager->getCameraImage(self::EXISTING_CAM_DIR, self::EXISTING_IMAGE);
        $this->assertInstanceOf(Response::class, $result);
    }
}