Hinduja-LMS/LMS/View Controller/VideoViewController.swift

//
//  VideoViewController.swift
//  LMS
//
//  Created by Suraj Kumar Mandal on 24/08/22.
//

import UIKit
import SideMenu
import AVKit
import AVFoundation
import HCVimeoVideoExtractor

class VideoViewController: UIViewController {
    
    @IBOutlet var navigationBar: UINavigationBar!
    @IBOutlet var thumbnailImageView: UIImageView!
    @IBOutlet var playButton: UIButton!
    
    var pageName = String()
    var videoId = String()
    var videoURL: URL?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Do any additional setup after loading the view.
        navigationBar.topItem?.title = pageName
        print(videoId)
        setupVideoPlayer()
    }
    
    func setupVideoPlayer() {
        HCVimeoVideoExtractor.fetchVideoURLFrom(id: videoId, completion: { ( video:HCVimeoVideo?, error:Error?) -> Void in
            if let err = error {
                print("Error = \(err.localizedDescription)")
                return
            }
            
            guard let vid = video else {
                print("Invalid video object")
                return
            }
            
            print("Title = \(vid.title), url = \(vid.videoURL), thumbnail = \(vid.thumbnailURL)")
            
            DispatchQueue.main.async() {
                self.videoURL = vid.videoURL[.quality360p]
                
                if let url = vid.thumbnailURL[.qualityBase] {
                    self.thumbnailImageView.contentMode = .scaleAspectFit
                    self.downloadImage(url: url)
                }
            }
        })
    }
    
    func downloadImage(url: URL) {
        getDataFromUrl(url: url) { data, response, error in
            guard let data = data, error == nil else { return }
            DispatchQueue.main.async() {
                self.thumbnailImageView.image = UIImage(data: data)
            }
        }
    }
    
    func getDataFromUrl(url: URL, completion: @escaping (Data?, URLResponse?, Error?) -> ()) {
        URLSession.shared.dataTask(with: url) { data, response, error in
            completion(data, response, error)
        }.resume()
    }
    
    
    /*
     // MARK: - Navigation
     
     // In a storyboard-based application, you will often want to do a little preparation before navigation
     override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
     // Get the new view controller using segue.destination.
     // Pass the selected object to the new view controller.
     }
     */
    
    @IBAction func backAction(_ sender: UIBarButtonItem) {
        self.navigationController?.popViewController(animated: true)
    }
    
    @IBAction func playAction(_ sender: Any) {
        if let url = self.videoURL {
            let player = AVPlayer(url: url)
            let playerController = AVPlayerViewController()
            playerController.player = player
            self.present(playerController, animated: true) {
                player.play()
            }
        }
    }
    
    
}