import library = require("../BiBeng/Library");

export default class Utils {

    /**
     * 将（秒）格式化为（分:秒）
     * @param seconds 秒数 
     */
    public static FormatSecToMinSec(seconds:number):string{
        let minute = Math.floor(seconds/60);
        let second = Math.floor(seconds%60);
        return (minute<10?'0':'')+minute+':'+(second<10?'0':'')+second;
    }

    /**
     * 加载SpriteFrame
     * @param url 资源地址（base64url） 
     * @param callback 成功回调
     */
    public static LoadSpriteFrame(url: string, callback: (spriteFrame: cc.SpriteFrame) => void) {
        if (url.substring(0, 10).toLocaleLowerCase() === "data:image") {
            library.setImageBase64(url, (texture2D: cc.Texture2D) => {
                let spriteFrame = new cc.SpriteFrame(texture2D);
                if (callback instanceof Function) callback(spriteFrame);
            });
        } else if (url.startsWith("http")) {
            cc.loader.load({url: url, type: "jpg"}, (err, texture2D: cc.Texture2D) => {
                if (err) {
                    console.error("cc load image fail", err);
                    return;
                }
                let spriteFrame = new cc.SpriteFrame(texture2D);
                if (callback instanceof Function) callback(spriteFrame);
            });
        } else {
            cc.loader.loadRes(url, cc.SpriteFrame, (err, spriteFrame: cc.SpriteFrame) => {
                if (err) return;
                if (callback instanceof Function) callback(spriteFrame);
            });
        }
    }
}