<?php

namespace App\Http\SymfonyCastDl;

use App\Jobs\GetVideoFileSize;
use App\Models\Chapter;
use App\Models\Course;
use GuzzleHttp\TransferStats;
use GuzzleHttp\Client;
use Illuminate\Support\Str;

class SymfonyCastDlService
{
    public Client $client;

    public function __construct(public HtmlParser $htmlParser)
    {
        $this->client = new Client([
            'base_uri' => config('symfonycast.base_url'),
            'cookies' => true
        ]);

        $response = $this->client->get('login');

        $token = $htmlParser->getCsrfToken($response);

        $this->client->post('login', [
            'form_params' => [
                'email' => config('symfonycast.login'),
                'password' => config('symfonycast.password'),
                '_csrf_token' => $token
            ],
            'on_stats' => function (TransferStats $stats) use (&$currentUrl) {
                $currentUrl = $stats->getEffectiveUri();
            }
        ]);
    }

    public function getInfo()
    {
        $coursePage = $this->client->get('courses/filtering');

        $courses = $this->htmlParser->getCourses($coursePage);
        $courses->each->save();
        /** @var Course $course */
        foreach ($courses as $course) {
            $singleCoursePage = $this->client->get('/screencast/' . $course->link);
            $chapters = $this->htmlParser->getCourseDetails($singleCoursePage, $course->id);
            $chapters->each->save();
            $chapters->each(fn($chapter) => GetVideoFileSize::dispatch($chapter->id));
        }
    }

    public function videoSize(Chapter $chapter): Chapter
    {
        try {
            if (!$chapter->video_size) {
                $response = $this->client->head($chapter->video_link);
                if ($response->hasHeader('Content-Length')) {
                    $chapter->video_size = $response->getHeader('Content-Length')[0];
                }
                $chapter->save();
            }
        } catch (\Exception $exception) {
        }
        return $chapter;
    }

    public function downloadFile(Chapter $chapter): void
    {
        if (!is_dir($chapter->directory_path)) {
            mkdir($chapter->directory_path);
        }
        if (!is_file($chapter->video_path)) {
            $this->client->request(
                'GET',
                $chapter->video_link,
                ['sink' => $chapter->video_path],
            );
        }
    }
}