sodalive-ios/SodaLive/Sources/Splash/SplashView.swift

//
//  SplashView.swift
//  SodaLive
//
//  Created by klaus on 2023/08/09.
//

import SwiftUI
import FirebaseRemoteConfig

import AVKit

struct SplashView: View {
    @State private var player: AVPlayer?
    @State private var isShowForcedUpdatePopup = false
    @State private var isShowUpdatePopup = false
    
    @StateObject var liveViewModel = LiveViewModel()
    
    var body: some View {
        ZStack(alignment: .top) {
            VStack {
                if let player = player {
                    VideoPlayer(player: player)
                        .ignoresSafeArea(.all)
                        .onAppear {
                            player.play()
                        }
                        .onDisappear {
                            player.pause()
                        }
                } else {
                    Color(hex: "#ecedf3")
                }
            }
            .onAppear {
                loadVideo()
            }
            
            if isShowUpdatePopup {
                SodaDialog(
                    title: "업데이트",
                    desc: "최신 업데이트가 있습니다.\n업데이트 하시겠습니까?",
                    confirmButtonTitle: "업데이트",
                    confirmButtonAction: {
                        UIApplication.shared.open(URL(string: "https://apps.apple.com/us/app/id6461721697?mt=8")!, options: [:])
                    },
                    cancelButtonTitle: "다음에",
                    cancelButtonAction: {
                        DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
                            AppState.shared.setAppStep(step: .main)
                        }
                    }
                )
            }
            
            if isShowForcedUpdatePopup {
                SodaDialog(
                    title: "업데이트",
                    desc: "필수 업데이트가 있습니다.\n업데이트 후 사용가능합니다.",
                    confirmButtonTitle: "업데이트",
                    confirmButtonAction: {
                        UIApplication.shared.open(URL(string: "https://apps.apple.com/us/app/id6461721697?mt=8")!, options: [:])
                    }
                )
            }
        }
    }
    
    private func loadVideo() {
        guard let url = Bundle.main.url(forResource: "video", withExtension: "mp4") else {
            fetchLastestVersion()
            return
        }
        
        player = AVPlayer(url: url)
        NotificationCenter.default
            .addObserver(forName: .AVPlayerItemDidPlayToEndTime, object: player?.currentItem, queue: .main) { _ in
                fetchLastestVersion()
            }
    }
    
    private func fetchLastestVersion() {
        let remoteConfig = RemoteConfig.remoteConfig()
        let configSettings = RemoteConfigSettings()
        configSettings.minimumFetchInterval = 300
        remoteConfig.configSettings = configSettings
        
        remoteConfig.fetch { status, error in
            if status == .success {
                remoteConfig.activate { changed, error in
                    checkAppVersion(latestVersion: remoteConfig["ios_latest_version"].stringValue)
                }
            } else {
                if AppState.shared.pushRoomId > 0 {
                    liveViewModel.enterLiveRoom(roomId: AppState.shared.pushRoomId)
                } else if AppState.shared.pushChannelId > 0 {
                    AppState.shared.setAppStep(step: .creatorDetail(userId: AppState.shared.pushChannelId))
                } else if AppState.shared.pushAudioContentId > 0 {
                    AppState.shared.setAppStep(step: .contentDetail(contentId: AppState.shared.pushAudioContentId))
                } else {
                    AppState.shared.setAppStep(step: .main)
                }
            }
        }
    }
    
    private func checkAppVersion(latestVersion: String?) {
        let version = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String
        
        if let latestVersion = latestVersion, let version = version {
            let latestVersions = latestVersion.split(separator: ".")
            let versions = version.split(separator: ".")
            
            let latestMajor = Int(latestVersions[0])!
            let latestMinor = Int(latestVersions[1])!
            let latestPatch = Int(latestVersions[2])!
            
            let major = Int(versions[0])!
            let minor = Int(versions[1])!
            let patch = Int(versions[2])!
            
            if latestMajor > major || (latestMajor == major && latestMinor > minor) {
                self.isShowForcedUpdatePopup = true
            } else if latestMajor == major && latestMinor == minor && latestPatch > patch {
                self.isShowUpdatePopup = true
            } else {
                if AppState.shared.pushRoomId > 0 {
                    liveViewModel.enterLiveRoom(roomId: AppState.shared.pushRoomId)
                } else if AppState.shared.pushChannelId > 0 {
                    AppState.shared.setAppStep(step: .creatorDetail(userId: AppState.shared.pushChannelId))
                } else if AppState.shared.pushAudioContentId > 0 {
                    AppState.shared.setAppStep(step: .contentDetail(contentId: AppState.shared.pushAudioContentId))
                } else {
                    AppState.shared.setAppStep(step: .main)
                }
            }
        } else {
            if AppState.shared.pushRoomId > 0 {
                liveViewModel.enterLiveRoom(roomId: AppState.shared.pushRoomId)
            } else if AppState.shared.pushChannelId > 0 {
                AppState.shared.setAppStep(step: .creatorDetail(userId: AppState.shared.pushChannelId))
            } else if AppState.shared.pushAudioContentId > 0 {
                AppState.shared.setAppStep(step: .contentDetail(contentId: AppState.shared.pushAudioContentId))
            } else {
                AppState.shared.setAppStep(step: .main)
            }
        }
    }
}

struct SplashView_Previews: PreviewProvider {
    static var previews: some View {
        SplashView()
    }
}