import { _decorator, Node, AudioClip, AudioSource, director, assetManager } from "cc";
import PlayerDataManager from "./PlayerDataManager";
import ResManager from "./ResManager";
import Resource from "../Config/Resource";

const { ccclass, property } = _decorator;

//音频管理器
@ccclass('AudioManager')
export default class AudioManager {

    private _audoSource: AudioSource;
    private curBgId: number = -1;    //当前播放中的背景乐id  用于记录
    private lastBgId: number = -1;    //上次播放的背景乐id  用于音乐开关切换时播放
    private curBgId_confirm: number = -1;    //当前播放中的背景乐id  实际播放


    private static _I: AudioManager = null;
    public static get I(): AudioManager {
        if (!AudioManager._I) {
            AudioManager._I = new AudioManager();
            AudioManager._I.init();
        }
        return AudioManager._I;
    }

    private init(){
        let audioMgr = new Node();
        audioMgr.name = '__audioMgr__';
        director.getScene().addChild(audioMgr);
        director.addPersistRootNode(audioMgr);
        this._audoSource = audioMgr.addComponent(AudioSource);
    }

    
    /**播放音效 */
    PlayEffect(sound, volume:number=1.0) {
        if (!sound) return;
        if (!PlayerDataManager.I.IsSoundOn) {
            return;
        }
        
        let cfgs = Resource.getConfig("Sound")
        if (!cfgs[sound]) return;

        let path = `Sound/${cfgs[sound].AssetName}`
        console.log("PlayEffect:", sound, path)
        ResManager.I.getBundleAudio(path, (res: AudioClip)=>{
            this._audoSource.playOneShot(res, volume)
        });
    }

    
    /**播放背景乐 */
    PlayMusic(sound, loop:boolean = true, volume:number=1.0) {
        if (!sound || sound == this.curBgId_confirm) return;
        
        let cfgs = Resource.getConfig("Music")
        if (!cfgs[sound]) return;

        this.lastBgId = sound;

        if (!PlayerDataManager.I.IsMusicOn) {
            return; //这个放在记录后面判断，防止开关打开时，没有记录
        }
        
        this.StopMusic()
        this.curBgId = sound;
        this.curBgId_confirm = sound;
        let path = `Music/${cfgs[sound].AssetName}`
        console.log("PlayMusic:", sound, path)
        ResManager.I.getBundleAudio(path, (res: AudioClip)=>{
            this._audoSource.clip = res
            this._audoSource.play()
            this._audoSource.volume = volume
            this._audoSource.loop = loop
        });
    }

    
    /**播放远程背景乐 */
    PlayRemoteMusic(url, loop:boolean = true, volume:number=1.0) {
        console.log(`下载远程背景乐: url= ${url}`)
        assetManager.loadRemote<AudioClip>(url, { ext: '.mp3'}, (err, res: AudioClip) => {
            if (err) {
                console.log(err);
                return
            }
            console.log(`播放远程背景乐: res= ${res}`)
            this.StopMusic()
            this._audoSource.clip = res
            this._audoSource.play()
            this._audoSource.volume = volume
            this._audoSource.loop = loop
        })

    }


    /**停止播放背景乐 */
    StopMusic(){
        this._audoSource.stop()
        this.curBgId = -1
        this.curBgId_confirm = -1
    }

    // 重新播放背景乐
    ReplayMusic(){
        if (this.curBgId > -1)
            return
        if (this.lastBgId < 0)
            return

        this.PlayMusic(this.lastBgId)
    }

    /**暂停播放背景乐 */
    PauseMusic(){
        this._audoSource.pause()
    }

    
    /**继续播放背景乐 */
    ResumeMusic(){
        this._audoSource.play()
    }

}