const { ccclass, property } = cc._decorator;

@ccclass
export default class DaoJiShiProgress extends cc.Component {

    @property({
        type: cc.Node,
        displayName: "进度条上面的人物",
    })
    slider: cc.Node = null;

    @property({
        type: cc.Node,
        displayName: "计时文字",
    })
    timer: cc.Node = null;

    @property({
        displayName: "总时间s",
    })
    allTimeNum: number = 60;

    _dt: number = 0
    isStartTimer: boolean = false//是否开始倒计时
    curTimeNum: number = 0
    progressWidth: number = 0
    finishCallFunc = null   //结束回调
    callTarget = null   //回调对象

    start() {
        this.progressWidth = this.node.width;
        this.curTimeNum = this.allTimeNum;
        this.isStartTimer = false;
        this.updateProgress()
    }

    update(dt) {
        if (this.isStartTimer) {
            this.curTimeNum -= dt
            this.updateProgress()
            //倒计时结束
            if (this.curTimeNum <= 0) {
                this.curTimeNum = 0
                this.isStartTimer = false
                this.node.getComponent(cc.ProgressBar).progress = 0;
                this.timer.getComponent(cc.Label).string = "0";
                this.slider.x = 0;
                this.finishCallFunc && (this.callTarget ? this.finishCallFunc.apply(this.callTarget) : this.finishCallFunc());
            }
        }
    }
    //设置开始/结束倒计时
    setIsStartTimer(bStart, finishCallFunc?: { target: any, callFunc: any }) {
        this.isStartTimer = bStart
        if (finishCallFunc) {
            this.finishCallFunc = finishCallFunc.callFunc;
            this.callTarget = finishCallFunc.target;
        }
    }

    //加时：秒
    addTimer(time: number) {
        this.curTimeNum += time;
        this.allTimeNum += time;
        let rate = this.curTimeNum / this.allTimeNum;
        this.node.getComponent(cc.ProgressBar).progress = rate;
        this.timer.getComponent(cc.Label).string = Math.floor(this.curTimeNum).toString();
        this.slider.x = rate * this.progressWidth;
    }

    updateProgress() {
        //未设置倒计时时间
        if (this.allTimeNum <= 0) {
            return;
        }
        let rate = this.curTimeNum / this.allTimeNum;
        this.node.getComponent(cc.ProgressBar).progress = rate;
        this.timer.getComponent(cc.Label).string = Math.floor(this.curTimeNum).toString();
        this.slider.x = rate * this.progressWidth;
    }
}