AudioPlayer features #58: Sleep timer

ReaderTranslator.xcodeproj/project.pbxproj

@@ -319,6 +319,7 @@
 		F0D31C5123491C23003CF86B /* GTranslatorView.swift in Sources */ = {isa = PBXBuildFile; fileRef = F0D31C5023491C23003CF86B /* GTranslatorView.swift */; };
 		F0D31C5223491C23003CF86B /* GTranslatorView.swift in Sources */ = {isa = PBXBuildFile; fileRef = F0D31C5023491C23003CF86B /* GTranslatorView.swift */; };
 		F0D3551C23A6BE3C009FBA74 /* GTranslatorView.swift in Sources */ = {isa = PBXBuildFile; fileRef = F0D3551B23A6BE3C009FBA74 /* GTranslatorView.swift */; };
+		F0DAB5E323B66DE400C1A4D3 /* TestView.swift in Sources */ = {isa = PBXBuildFile; fileRef = F0DAB5E223B66DE400C1A4D3 /* TestView.swift */; };
 		F0DADAE5239BE8C200CFE2B1 /* SwiftSoup in Frameworks */ = {isa = PBXBuildFile; productRef = F0DADAE4239BE8C200CFE2B1 /* SwiftSoup */; };
 		F0EDE34B236418E000E0B81C /* DOMEvent.swift in Sources */ = {isa = PBXBuildFile; fileRef = F0EE0A0F23478C86004A5EAD /* DOMEvent.swift */; };
 		F0EDE34D23641B1300E0B81C /* Stack.swift in Sources */ = {isa = PBXBuildFile; fileRef = F0EDE34C23641B1300E0B81C /* Stack.swift */; };
@@ -524,6 +525,7 @@
 		F0D2E333234BA49000D95994 /* Safari.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Safari.swift; sourceTree = "<group>"; };
 		F0D31C5023491C23003CF86B /* GTranslatorView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GTranslatorView.swift; sourceTree = "<group>"; };
 		F0D3551B23A6BE3C009FBA74 /* GTranslatorView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GTranslatorView.swift; sourceTree = "<group>"; };
+		F0DAB5E223B66DE400C1A4D3 /* TestView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TestView.swift; sourceTree = "<group>"; };
 		F0EDE34C23641B1300E0B81C /* Stack.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Stack.swift; sourceTree = "<group>"; };
 		F0EDFB1E239E2F210048CFD1 /* BookmarksView_Controls_ActionMenu.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BookmarksView_Controls_ActionMenu.swift; sourceTree = "<group>"; };
 		F0EDFB21239E467B0048CFD1 /* ReaderView_Pdf_Toolbar_PlayButtons.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ReaderView_Pdf_Toolbar_PlayButtons.swift; sourceTree = "<group>"; };
@@ -805,6 +807,7 @@
 				F00AD753239627EB005FAFE1 /* PlayerContols */,
 				F0AB182323A5501C00A71CA6 /* ViewModes */,
 				F0120379239182DA008D0B47 /* PlayerContentView.swift */,
+				F0DAB5E223B66DE400C1A4D3 /* TestView.swift */,
 			);
 			path = Views;
 			sourceTree = "<group>";
@@ -1414,6 +1417,7 @@
 				F02B04C523A2930D00F93B84 /* ConnectionView.swift in Sources */,
 				F0D3551C23A6BE3C009FBA74 /* GTranslatorView.swift in Sources */,
 				F0120378239182DA008D0B47 /* SceneDelegate.swift in Sources */,
+				F0DAB5E323B66DE400C1A4D3 /* TestView.swift in Sources */,
 				F033F41223A6D3A800605325 /* DirectoryObserver.swift in Sources */,
 				F08EBB0523956202009025D3 /* FileListView.swift in Sources */,
 				F046182E23A3A4AF0041E726 /* ConnectionClientStatus.swift in Sources */,

ReaderTranslatorPlayer/Store/AudioStore.swift

@@ -6,22 +6,32 @@
 //  Copyright © 2019 Viktor Kushnerov. All rights reserved.
 //
 
-import Foundation
+import AVFoundation
+import SwiftUI
 
-final class AudioStore: ObservableObject {
-    private init() {}
+final class AudioStore: NSObject, ObservableObject {
+    private override init() { super.init() }
     static var shared = AudioStore()
 
+    private var timer: Timer?
+    private var sleepTimer: Timer?
+    private(set) var player: AVAudioPlayer?
+    private var someObservationContext = ""
+
+    @Published var currentStatus = "0.0/0.0"
+    @Published var files: [URL] = []
     @Published var isPlaying = false {
         willSet {
-            guard let player = FileListView.player else { return }
+            guard let player = player else { return }
 
             if newValue {
                 let currentTime = player.currentTime
                 player.play()
                 player.currentTime = currentTime
+                startTimer()
             } else {
                 player.pause()
+                invalidate()
             }
         }
     }
@@ -30,4 +40,63 @@ final class AudioStore: ObservableObject {
     @Published(key: "isVoiceEnabled") var isEnabled = true
     @Published(key: "voiceVolume") var volume: Float = 1
     @Published(key: "audioRate") var rate: Float = 1
+    @Published var sleepAfter = 0
+}
+
+extension AudioStore {
+    func openAudio(url: URL) {
+        do {
+            player = try AVAudioPlayer(contentsOf: url)
+            guard let player = player else { return }
+            player.delegate = self
+            player.enableRate = true
+            player.rate = rate
+        } catch {
+            print(error)
+        }
+    }
+
+    func invalidate() {
+        timer?.invalidate()
+    }
+
+    func startTimer() {
+        invalidate()
+        timer = Timer.scheduledTimer(withTimeInterval: 0.2, repeats: true) { _ in
+            guard let player = self.player else { return }
+            self.currentStatus = String(format: "%.1f/%.1f", player.currentTime, player.duration)
+        }
+    }
+
+    func setSleepTimer(minutes: Int) {
+        sleepTimer = Timer.scheduledTimer(withTimeInterval: Double(minutes), repeats: false) { _ in
+            self.isPlaying = false
+        }
+    }
+
+    func stopSleepTimer() {
+        sleepTimer?.invalidate()
+        sleepTimer = nil
+    }
+
+    var remainTimerTime: String {
+        guard let fireDate = self.sleepTimer?.fireDate else { return "The timer is off" }
+        let time = RelativeDateTimeFormatter().localizedString(for: fireDate, relativeTo: Date())
+        return "The timer will turn off \(time)"
+    }
+}
+
+extension AudioStore: AVAudioPlayerDelegate {
+    func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
+        if flag {
+            guard let lastAudio = lastAudio else { return }
+            guard let current = files.firstIndex(of: lastAudio) else { return }
+            let next = files.index(after: current)
+            if files.indices.contains(next) {
+                let url = files[next]
+                openAudio(url: url)
+                isPlaying = true
+            }
+        }
+    }
 }

ReaderTranslatorPlayer/Views/PlayerContols/AudioRateView.swift

@@ -11,7 +11,7 @@ import SwiftUI
 struct AudioRateView: View {
     @State var audioRate: Float = AudioStore.shared.rate {
         didSet {
-            FileListView.player?.rate = audioRate
+            AudioStore.shared.player?.rate = audioRate
             AudioStore.shared.rate = audioRate
         }
     }

ReaderTranslatorPlayer/Views/PlayerContols/PlayerContolsView.swift

@@ -8,62 +8,78 @@
 
 import SwiftUI
 
-private var timer: Timer?
-
 struct PlayerControlsView: View {
     @ObservedObject var audioStore = AudioStore.shared
 
-    @State var currentStatus = "0.0/0.0"
     @State var showSafari = false
     @State var showHosts = false
-
-    private var playPauseButton: some View {
-        Button(
-            action: { self.audioStore.isPlaying.toggle() },
-            label: { Text(audioStore.isPlaying ? "Pause" : "Play") }
-        )
-        .buttonStyle(RoundButtonStyle())
-    }
+    @State var showTimer = false
 
     var body: some View {
         VStack(spacing: 10) {
-            statusView.frame(width: 100)
+            Text("\(audioStore.currentStatus)").frame(width: 100)
             AudioRateView()
             RewindButtonsView()
-            HStack(spacing: 40) {
-                Button(action: {
-                    self.showHosts = true
-                }, label: { Image(systemName: "wifi") })
-                    .padding(.leading)
-                    .buttonStyle(RoundButtonStyle())
+            HStack(spacing: 20) {
+                timerButton
+                hostsButton
                 Spacer()
                 playPauseButton
-                Button(action: { self.showSafari = true }, label: { Text("Safari") })
-                    .buttonStyle(RoundButtonStyle())
-            }
+                safariButton
+            }.padding([.leading, .trailing], 20)
         }
         .sheet(isPresented: $showSafari) {
             SafariView(url: .constant(URL(string: "https://www.ldoceonline.com")))
         }
         .sheet(isPresented: $showHosts) { ConnectionView() }
+        .actionSheet(isPresented: $showTimer) {
+            ActionSheet(
+                title: Text("Sleep timer"),
+                message: Text(self.audioStore.remainTimerTime),
+                buttons: timerValueButtons
+            )
+        }
+    }
+
+    private var playPauseButton: some View {
+        Button(
+            action: { self.audioStore.isPlaying.toggle() },
+            label: { Text(audioStore.isPlaying ? "Pause" : "Play") }
+        ).buttonStyle(RoundButtonStyle())
     }
 
-    private var statusView: some View {
-        let status = Text("\(currentStatus)")
+    private var timerButton: some View {
+        Button(
+            action: { self.showTimer = true },
+            label: { Image(systemName: "timer") }
+        ).buttonStyle(RoundButtonStyle())
+    }
 
-        return Group {
-            if audioStore.isPlaying {
-                status.onAppear { self.startTimer() }
-            } else {
-                status.onAppear { timer?.invalidate() }
-            }
-        }
+    private var hostsButton: some View {
+        Button(
+            action: { self.showHosts = true },
+            label: { Image(systemName: "wifi") }
+        ).buttonStyle(RoundButtonStyle())
+    }
+
+    private var safariButton: some View {
+        Button(
+            action: { self.showSafari = true },
+            label: { Text("Safari") }
+        ).buttonStyle(RoundButtonStyle())
     }
 
-    private func startTimer() {
-        timer = Timer.scheduledTimer(withTimeInterval: 0.2, repeats: true) { _ in
-            guard let player = FileListView.player else { return }
-            self.currentStatus = String(format: "%.1f/%.1f", player.currentTime, player.duration)
+    private var timerValueButtons: [ActionSheet.Button] {
+        Array(0...20).map { val in
+            let val = val * 10
+            let value = val == 0 ? "Off" : String(describing: val)
+            let action = {
+                if val == 0 {
+                    self.audioStore.stopSleepTimer()
+
+                } else { self.audioStore.setSleepTimer(minutes: val * 60) }
+            }
+            return .default(Text("\(value)"), action: action)
         }
     }
 }

ReaderTranslatorPlayer/Views/PlayerContols/RewindButtonsView.swift

@@ -11,7 +11,7 @@ import SwiftUI
 struct RewindButtonsView: View {
     var body: some View {
         HStack {
-            Button(action: { FileListView.player?.currentTime = 0 }, label: { Text("|<") })
+            Button(action: { AudioStore.shared.player?.currentTime = 0 }, label: { Text("|<") })
                 .buttonStyle(RoundButtonStyle())
             rewindButton(label: "-50", step: -50)
             rewindButton(label: "-5", step: -5)
@@ -24,7 +24,7 @@ struct RewindButtonsView: View {
 
     private func rewindButton(label: String, step: Double) -> some View {
         Button(
-            action: { FileListView.player?.currentTime += step },
+            action: { AudioStore.shared.player?.currentTime += step },
             label: { Text(label).frame(width: 35) }
         )
         .buttonStyle(RoundButtonStyle())

ReaderTranslatorPlayer/Views/TestView.swift

@@ -0,0 +1,47 @@
+//
+//  test.swift
+//  ReaderTranslatorPlayer
+//
+//  Created by Viktor Kushnerov on 27/12/19.
+//  Copyright © 2019 Viktor Kushnerov. All rights reserved.
+//
+
+import SwiftUI
+
+struct TestView: View {
+    @State var pp = 1
+    @State var show = false
+
+    var body: some View {
+        VStack {
+//            Spacer()
+            Text("1000")
+                .onTapGesture {
+                    self.show = true
+                }
+                .overlay(
+                    Group {
+                        if show {
+                            Picker(selection: $pp, label: Text("")) {
+                                Text("1111").tag(1)
+                                Text("1111").tag(2)
+                                Text("1111").tag(3)
+                                Text("1111").tag(4)
+                                Text("1111").tag(5)
+                            }
+                            .background(Color.secondary)
+                            .foregroundColor(Color.primary)
+                        } else {
+                            EmptyView()
+                        }
+                    }
+                )
+        }
+    }
+}
+
+struct test_Previews: PreviewProvider {
+    static var previews: some View {
+        TestView()
+    }
+}