<?php

namespace App\Http\Controllers;

use App\Http\SymfonyCastDl\SymfonyCastDlService;
use App\Models\Chapter;
use App\Models\Course;

class ChapterController extends Controller
{
    public function index(Course $course, int $chapter, SymfonyCastDlService $symfonyCastDlService)
    {
        $chapter = $course->chapters->firstWhere('order', $chapter);

        $symfonyCastDlService->videoSize($chapter);
        if ($chapter->sync_offline) {
            $symfonyCastDlService->downloadFile($chapter);
        }
        $chapters = $chapter->course->chapters;

        $next = $chapters->where('order', '>', $chapter->order)->first();
        $prev = $chapters->where('order', '<', $chapter->order)->sortByDesc('order')->first();
        return view('chapter.index', compact('chapter', 'chapters', 'prev', 'next'));
    }
}