Woka_Native_iOS/WOKA/WOKAFM/ViewModel/WokaFMVM.swift

//
//  WokaFMVM.swift
//  WOKA
//
//  Created by MacBook Pro on 01/08/24.
//

import UIKit
import AVFoundation
import GoogleMobileAds
import MediaPlayer

class WokaFMVM{
    
    weak var vc : WokaFMVC!
        
    var player: AVPlayer!
    var playerItem: AVPlayerItem!
    
    var startTimeStamp = Date()
    var bottomBannerView = GADBannerView()
    
    // if retry count is 4 reset it to 0
    var retryCount = 0
    
    func initView(){
        startTimeStamp = Date()
        vc.mainView.roundCorners(radius: 10, corners: [.topLeft, .topRight])
        let color1 = #colorLiteral(red: 0.5921568627, green: 0.2588235294, blue: 0.8941176471, alpha: 1)
        let color2 = #colorLiteral(red: 0.368627451, green: 0.1215686275, blue: 0.768627451, alpha: 1)
        vc.roundView.applyGradient(colors: [color2, color1], startPoint: CGPoint(x: 0, y: 0), endPoint: CGPoint(x: 0.8, y: 0))
        vc.playBtn.applyGradientBtn(colors: [color2, color1], startPoint: CGPoint(x: 0, y: 0), endPoint: CGPoint(x: 0.8, y: 0))
        vc.playBtn.roundCorner()
        
        vc.mainView.roundCorners(radius: 10, corners: [.topLeft, . topRight])
        
        setupPlayer()
        vc.addObservers()
        setupAudioSession()
        
        vc.blackView.addTapGesture { [weak self] in
            guard let self else{return}
            PersistentStorage.shared.addRadioCount()
            if let postID = AuthFunc.shareInstance.staticURLs?.liveFmData?.id {
                let duration = DateFormatterLib.dateDifferenceINT(date1: self.startTimeStamp, date2: Date())
                AuthFunc.shareInstance.userVideoView(postID: postID, postType: PostType.FM.rawValue, duration: duration, catID: 0) { _ in}
            }
            self.vc.dismiss(animated: true)
        }
        setGoogleAd()
        
        
//        updateNowPlayingInfo()
    }
    
    // MARK: - SetupAd
    
    func stopMPNowPlayin(){
        MPNowPlayingInfoCenter.default().nowPlayingInfo = [:]
        UIApplication.shared.endReceivingRemoteControlEvents()
        let commandCenter = MPRemoteCommandCenter.shared()
        
        // Disable play/pause commands
        commandCenter.playCommand.removeTarget(nil)
        commandCenter.pauseCommand.removeTarget(nil)
    }
    
    func setupNowPlayingInfo() {
        let nowPlayingInfoCenter = MPNowPlayingInfoCenter.default()
        var nowPlayingInfo: [String: Any] = [:]

        // Set the media title, artist, and album name
        nowPlayingInfo[MPMediaItemPropertyTitle] = "Live FM"
        nowPlayingInfo[MPMediaItemPropertyArtist] = "WOKA"
        nowPlayingInfo[MPMediaItemPropertyAlbumTitle] = ""
        nowPlayingInfo[MPNowPlayingInfoPropertyIsLiveStream] = true

        if let originalImage = UIImage(named: "MasilaCharacter") {
            
            let artworkImage = imageWithBackground(color: #colorLiteral(red: 0.4495816827, green: 0.2344398499, blue: 0.8120074868, alpha: 1), originalImage: originalImage)
            
            let artwork = MPMediaItemArtwork(boundsSize: originalImage.size) { size in
                return artworkImage ?? originalImage
            }
            
            nowPlayingInfo[MPMediaItemPropertyArtwork] = artwork

        }
        
        // Set the duration and current playback position
        if let currentItem = player.currentItem {
            nowPlayingInfo[MPMediaItemPropertyPlaybackDuration] = currentItem.asset.duration.seconds
            nowPlayingInfo[MPNowPlayingInfoPropertyElapsedPlaybackTime] = player.currentTime().seconds
            nowPlayingInfo[MPNowPlayingInfoPropertyPlaybackRate] = player.rate
        }
        
        // Assign the nowPlayingInfo to the center
        nowPlayingInfoCenter.nowPlayingInfo = nowPlayingInfo
    }
    
    func setupRemoteCommandCenter() {
        let commandCenter = MPRemoteCommandCenter.shared()

        // Enable play command
        commandCenter.playCommand.addTarget { [weak self] event in
            guard let self else{return .commandFailed}
            if player.rate == 0.0 {
                player.play()
                return .success
            }
            return .commandFailed
        }

        // Enable pause command
        commandCenter.pauseCommand.addTarget { [weak self] event in
            guard let self else{return .commandFailed}
            if player.rate == 1.0 {
                player.pause()
                return .success
            }
            return .commandFailed
        }

        // Enable next and previous track commands if needed
        commandCenter.nextTrackCommand.isEnabled = false
        commandCenter.previousTrackCommand.isEnabled = false
    }
    
    func imageWithBackground(color: UIColor, originalImage: UIImage) -> UIImage? {
        let size = originalImage.size
        UIGraphicsBeginImageContextWithOptions(size, false, originalImage.scale)
        let rect = CGRect(origin: CGPoint.zero, size: size)
        
        // Fill the background with a color
        color.setFill()
        UIRectFill(rect)
        
        // Draw the original image on top
        originalImage.draw(in: rect)
        
        // Capture the new image with background
        let imageWithBackground = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        
        return imageWithBackground
    }
    
    func updateNowPlayingInfo() {
        if let currentItem = player.currentItem {
            var nowPlayingInfo = MPNowPlayingInfoCenter.default().nowPlayingInfo ?? [:]
            nowPlayingInfo[MPNowPlayingInfoPropertyElapsedPlaybackTime] = player.currentTime().seconds
            nowPlayingInfo[MPNowPlayingInfoPropertyPlaybackRate] = player.rate
            MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
        }
    }

    
    func setGoogleAd(){
        /*
         First check if webSeries ad is present via slug, then check for Local Ads, if not then check google ads.
         */
        if let adsData = AuthFunc.shareInstance.adsData, let fmAd = adsData.result?.filter({$0.slug == AdsEnum.fm.rawValue}).first{
            
            // check if ads data contains LocalAD for webseries
            if let advertisement = fmAd.advertisement,let bannerImage = advertisement.bannerImage{
                vc.imageAdView.imageURL(bannerImage, color: .white)
                vc.imageAdView.alpha = 0
                let height = UIScreen.main.bounds.width * 0.192
                vc.imageAdHeight.constant = height
                UIView.animate(withDuration: 0.2, animations: { [weak self] in
                    guard let self else{return}
                    vc.imageAdView.alpha = 1
                    vc.imageAdView.isHidden = false
                })
                
                vc.imageAdView.addTapGesture {
                    if let adID = fmAd.id{
                        PersistentStorage.shared.addAdsCount(adID: adID ,clicks: 1)
                    }
                    if let adLink = fmAd.advertisement?.adLink ,let url = URL(string: adLink), UIApplication.shared.canOpenURL(url) {
                        UIApplication.shared.open(url)
                    }
                }
            }else{
                /*
                 Show google ads with dispatch queue.
                 */
                DispatchQueue.main.asyncAfter(deadline: .now() + 0.3, execute: { [weak self] in
                    guard let self else{return}
                    AdReusable.sharedInstance.setupBannerAd(bannerView: self.bottomBannerView, in: vc.imageAdView, adUnitID: K.GoogleAdIDs.wokaFM, viewController: self.vc)
                })
            }
        }
    }

    // MARK: - Setup AV & Player

    func setupAudioSession() {
        let session = AVAudioSession.sharedInstance()
        do {
            try session.setCategory(.playback, mode: .default)
            try session.setActive(true)
        } catch {
            print("Failed to set up audio session")
        }
    }
    
    func setupPlayer() {
        guard let data = AuthFunc.shareInstance.staticURLs , let liveFmURL = data.liveFmData?.liveFmURL else{
            AuthFunc.shareInstance.getStaticURLs()
            self.vc.toast(msg: "Issue with radio, please try after sometime.", time: 2)
            return
        }
        
        guard let url = URL(string: liveFmURL) else{return}
//        guard let url = URL(string: "https://a9.asurahosting.com:7530/radio.mp3") else{return}
        playerItem = AVPlayerItem(url: url)
        player = AVPlayer(playerItem: playerItem)
        player.play()
//        setGoogleAd()
    }
    
    func retryConnect(){
        vc.activityIndicator.startAnimating()
        vc.playBtn.isEnabled = false
        setupPlayer()
        vc.addObservers()
        setupAudioSession()
    }
    
}