//
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// VoicePlayer.swift
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// DolphinEnglishLearnStudent
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//
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// Created by 无故事王国 on 2024/6/4.
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//
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import Foundation
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import AVFAudio
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protocol VoicePlayerDelegate{
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func playComplete()
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func playing()
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}
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/// 音频播放器
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class VoicePlayer:NSObject{
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/// 缓存地址
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private let voiceCacheDirectory = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first!.appendingPathComponent("voices")
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private static var _sharedInstance: VoicePlayer?
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private var player:AVAudioPlayer?
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private var tempPlayer:AVAudioPlayer?
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var delegate:VoicePlayerDelegate?
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//是否正在播放
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var isPlaying:Bool{return player?.isPlaying ?? false}
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//播放完成回调
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private var playComplete:(()->Void)?
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/// 单例
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class func share() -> VoicePlayer {
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guard let instance = _sharedInstance else {
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_sharedInstance = VoicePlayer()
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try? FileManager.default.createDirectory(at: _sharedInstance!.voiceCacheDirectory, withIntermediateDirectories: true)
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return _sharedInstance!
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}
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return instance
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}
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private override init() {} // 私有化init方法
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///销毁单例对象
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class func destroy() {
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_sharedInstance = nil
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}
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/// 播放语音
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/// - Parameter url: Https的语音地址
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func playerAt(url:String?){
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guard let u = url else {return}
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if player?.isPlaying ?? false{
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// player?.stop()
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return
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}
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//文件存在：直接播放缓存路径的语音
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let fileURL = self.voiceCacheDirectory.appendingPathComponent(URL(fileURLWithPath: u).lastPathComponent).droppedScheme()
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if FileManager.default.fileExists(atPath: fileURL!.absoluteString){
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self.player = try? AVAudioPlayer(contentsOf: fileURL!)
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self.player?.delegate = self
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self.player?.play()
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DispatchQueue.main.async {
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self.delegate?.playing()
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}
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}else{
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//文件不存在：执行下载
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let downloadTask = URLSession.shared.downloadTask(with: URL(string: u)!) { tempLocalUrl, response, error in
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if let tempLocalUrl = tempLocalUrl, error == nil {
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do {
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let finalCacheUrl = self.voiceCacheDirectory.appendingPathComponent(URL(fileURLWithPath: u).lastPathComponent)
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try FileManager.default.moveItem(at: tempLocalUrl, to: finalCacheUrl)
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self.player = try? AVAudioPlayer(contentsOf: finalCacheUrl.droppedScheme()!)
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self.player?.delegate = self
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self.player?.play()
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DispatchQueue.main.async {
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self.delegate?.playing()
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}
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} catch {
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print("视频缓存失败：catch")
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}
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} else {
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print("视频缓存失败：\(error?.localizedDescription ?? "")")
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}
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}
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downloadTask.resume()
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}
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}
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func playerEnd(){
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player?.stop()
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playComplete?()
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}
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//打断播放未完全播放
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func playerInterrupt(){
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player?.stop()
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}
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func playEnd(course:@escaping ()->Void){
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self.playComplete = course
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}
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func playSuccessVoice(){
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let list = try? FileManager.default.contentsOfDirectory(atPath: voiceCacheDirectory.droppedScheme()!.absoluteString)
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var promoteName:String?
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for v in list ?? []{
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if v.contains("SuccessPromote"){promoteName = v;break}
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}
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guard let url = promoteName else { return }
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let promote = self.voiceCacheDirectory.appendingPathComponent(url)
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tempPlayer = try? AVAudioPlayer(contentsOf: promote)
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tempPlayer?.play()
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}
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func playFailVoice(){
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let list = try? FileManager.default.contentsOfDirectory(atPath: voiceCacheDirectory.droppedScheme()!.absoluteString)
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var promoteName:String?
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for v in list ?? []{
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if v.contains("FailPromote"){promoteName = v;break}
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}
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guard let url = promoteName else { return }
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let promote = self.voiceCacheDirectory.appendingPathComponent(url)
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tempPlayer = try? AVAudioPlayer(contentsOf: promote)
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tempPlayer?.play()
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}
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static func hasPromoteVoice()->Bool{
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let list = try? FileManager.default.contentsOfDirectory(atPath: VoicePlayer.share().voiceCacheDirectory.droppedScheme()!.absoluteString)
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return list?.contains(["SuccessPromote","FailPromote"]) ?? false
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}
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func donwloadPromoteVoice(successVoice:String,failVoice:String,updateTime:String){
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print("-->\(VoicePlayer.share().voiceCacheDirectory)")
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let group = DispatchGroup()
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let promoteQueue = DispatchQueue(label: "promoteVoice")
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promoteQueue.async(group: group){
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//文件不存在：执行下载
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let downloadTask = URLSession.shared.downloadTask(with: URL(string: successVoice)!) { tempLocalUrl, response, error in
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if let tempLocalUrl = tempLocalUrl, error == nil {
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do {
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let fileType = URL(fileURLWithPath: successVoice).lastPathComponent.components(separatedBy: ".").last ?? "mp3"
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let finalCacheUrl = self.voiceCacheDirectory.appendingPathComponent("SuccessPromote.\(fileType)")
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if FileManager.default.fileExists(atPath: finalCacheUrl.droppedScheme()!.absoluteString){
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try? FileManager.default.removeItem(at: finalCacheUrl)
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}
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try FileManager.default.moveItem(at: tempLocalUrl, to: finalCacheUrl)
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} catch {
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print("视频缓存失败：catch")
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}
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} else {
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print("视频缓存失败：\(error?.localizedDescription ?? "")")
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}
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}
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downloadTask.resume()
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}
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promoteQueue.async(group: group){
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//文件不存在：执行下载
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let downloadTask = URLSession.shared.downloadTask(with: URL(string: failVoice)!) { tempLocalUrl, response, error in
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if let tempLocalUrl = tempLocalUrl, error == nil {
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do {
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let fileType = URL(fileURLWithPath: successVoice).lastPathComponent.components(separatedBy: ".").last ?? "mp3"
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let finalCacheUrl = self.voiceCacheDirectory.appendingPathComponent("FailPromote.\(fileType)")
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if FileManager.default.fileExists(atPath: finalCacheUrl.droppedScheme()!.absoluteString){
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try? FileManager.default.removeItem(at: finalCacheUrl)
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}
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try FileManager.default.moveItem(at: tempLocalUrl, to: finalCacheUrl)
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} catch {
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print("视频缓存失败：catch")
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}
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} else {
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print("视频缓存失败：\(error?.localizedDescription ?? "")")
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}
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}
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downloadTask.resume()
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}
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group.notify(queue: .main){
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UserDefaults.standard.setValue(updateTime, forKey: "promptVoiceDate")
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UserDefaults.standard.synchronize()
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}
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}
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}
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extension VoicePlayer:AVAudioPlayerDelegate{
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func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
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DispatchQueue.main.async {
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VoicePlayer.share().playComplete?()
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self.delegate?.playComplete()
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}
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}
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func audioPlayerDecodeErrorDidOccur(_ player: AVAudioPlayer, error: (any Error)?) {
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print("播放错误")
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}
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}
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