import { SysDefine } from "../config/SysDefine";

export default class UiHelper {
    /**
     * 寻找子节点
     */
    public static findChildInNode(nodeName: string, rootNode: cc.Node): cc.Node {
        if(rootNode.name == nodeName) {
            return rootNode;
        }
        for(let i=0; i<rootNode.childrenCount; i++) {
            let node = this.findChildInNode(nodeName, rootNode.children[i]);
            if(node) {
                return node;
            }
        }
        return null;
    }

    /** 检测前缀是否符合绑定规范 */
    public static checkNodePrefix(name: string) {
        if(name[0] !== SysDefine.SYS_STANDARD_Prefix) {
            return false;
        }
        return true; 
    }
    /** 检查后缀 */
    public static checkBindChildren(name: string) {
        if(name[name.length-1] !== SysDefine.SYS_STANDARD_End) {
            return true;
        }
        return false;
    }
    /** 获得类型和name */
    public static getPrefixNames(name: string) {
        if(name === null) {
            return ;
        }
        return name.split(SysDefine.SYS_STANDARD_Separator);
    }
    /** 获得Component的类名 */
    public static getComponentName(com: Function) {
        let arr = com.name.match(/<.*>$/);
        if(arr && arr.length > 0) {
            return arr[0].slice(1, -1);
        }
        return com.name;
    }


    /////////////////////////////////////////////////////////////////////////////////
    /**
     * 
     * @param target 
     * @param repeat -1，表示永久执行
     * @param tweens 
     */
    public static async runRepeatTweenAsync(target: any, repeat: number, ...tweens: cc.Tween[]) {
        return new Promise((resolve, reject) => {
            let selfTween = cc.tween(target);
            for(const tmpTween of tweens) {
                selfTween = selfTween.then(tmpTween);
            }
            if(repeat < 0) {
                cc.tween(target).repeatForever(selfTween).start();
            }else {
                cc.tween(target).repeat(repeat, selfTween).start();
            }
        });   
    }
    /** 同步的tween */
    public static async runTweenAsync(target: any, ...tweens: cc.Tween[]): Promise<void> {
        return new Promise((resolve, reject) => {
            let selfTween = cc.tween(target);
            for(const tmpTween of tweens) {
                selfTween = selfTween.then(tmpTween);
            }
            selfTween.call(() => {
                resolve();
            }).start();
        });
    }
    /** 停止tween */
    public stopTween(target: any) {
        cc.Tween.stopAllByTarget(target);
    }
    public stopTweenByTag(tag: number) {
        cc.Tween.stopAllByTag(tag);
    }
}