import { _decorator, Component, director, error, instantiate, Node, Prefab, UITransform, Widget, assetManager, AssetManager, tween, v3, UIOpacity, Vec3, ProgressBar, Sprite, Tween } from "cc";
import ui_base from "./ui_base";
import { ResolutionAutoFit } from "./ui_ResolutionAutoFit";
const { ccclass, property } = _decorator;
@ccclass('ui_updater')
class ui_updater extends Component {
    update(dt: number) {
        ui_base.updateAll(dt);
    }
}
export enum GameUILayers {
    GAME,
    JOY_STICK,
    HUD,
    POPUP,
    ALERT,
    NOTICE,
    LOADING,
    OVERLAY
}
type Constructor<T extends ui_base> = new () => T;
/**ui管理模块*/
class ui {
    private static _instance: ui;
    public static getInstance(): ui {
        if (!this._instance) this._instance = new ui();
        return this._instance;
    }
    public delay(ms: number): Promise<void> {
        return new Promise(resolve => setTimeout(resolve, ms));
    }
    public delay_second(s: number): Promise<void> {
        return new Promise(resolve => setTimeout(resolve, s * 1000));
    }
    public progressBar_anim(bar: ProgressBar, progress: number, duration: number = 0.2): Promise<void> {
        if (bar.progress >= progress) {
            bar.progress = progress;
            return;
        } else {
            return new Promise(resolve => tween(bar).to(duration, { progress: progress }).call(() => { resolve() }).start());
        }
    }
    public fillRange_anim(sp: Sprite, progress: number, duration: number = 0.2, limt: -1 | 0 | 1 = 0): Promise<void> {
        if ((limt > 0 && sp.fillRange >= progress) && (limt < 0 && sp.fillRange <= progress)) {
            sp.fillRange = progress;
            return;
        } else {
            return new Promise(resolve => tween(sp).to(duration, { fillRange: progress }).call(() => { resolve() }).start());
        }
    }
    public scale_anim(node: Node, duration: number = 0.2, start: number = 0.5, end: number = 1,): Promise<void> {
        node.setScale(start, start, 1);
        return new Promise(resolve => tween(node).to(duration, { scale: v3(end, end, 1) }).call(() => { resolve() }).start());
    }
    public scale_elasticOut_anim(node: Node, duration: number = 0.2, start: number = 0.5, end: number = 1,): Promise<void> {
        node.setScale(start, start, 1);
        return new Promise(resolve => tween(node).to(duration, { scale: v3(end, end, 1) }, { easing: 'elasticOut' }).call(() => { resolve() }).start());
    }
    public fade_anim(node: Node, duration: number = 0.2, startOpacity: number = 0, targetOpacity: number = 255): Promise<void> {
        const opacity = node.getComponent(UIOpacity) ?? node.addComponent(UIOpacity);
        opacity.opacity = startOpacity;
        return new Promise((resolve) => { tween(opacity).to(duration, { opacity: targetOpacity }).call(() => { resolve() }).start(); });
    }
    public shake_anim(node: Node, duration: number = 0.2, intensity: number = 5, shakeCount: number = 7): Promise<void> {
        return new Promise((resolve) => {
            const originalPosition = node.position.clone(); // 保存原始位置  
            const shakeDuration = duration / (shakeCount * 2); // 每次抖动的持续时间  
            const shakeTween = tween(node);
            for (let i = 0; i < shakeCount; i++) {
                const offsetX = (i % 2 === 0 ? intensity : -intensity); // 交替偏移  
                shakeTween.to(shakeDuration, { position: v3(originalPosition.x + offsetX, originalPosition.y, originalPosition.z) })
                    .to(shakeDuration, { position: originalPosition }); // 回到原位  
            }
            shakeTween.call(() => { resolve() }).start(); // 开始抖动动画  
        });
    }
    public rotate_shake_anim(node: Node, duration: number = 0.3, intensity: number = 5, shakeCount: number = 5): Promise<void> {
        return new Promise((resolve) => {
            const originalAngle = node.angle; // 保存原始角度  
            const shakeDuration = duration / (shakeCount * 2); // 每次晃动的持续时间  
            const shakeTween = tween(node);
            for (let i = 0; i < shakeCount; i++) {
                const offsetAngle = (i % 2 === 0 ? intensity : -intensity); // 交替旋转  
                shakeTween.to(shakeDuration, { angle: originalAngle + offsetAngle })
                    .to(shakeDuration, { angle: originalAngle }); // 回到原位  
            }
            shakeTween.call(() => { resolve() }).start(); // 开始角度晃动动画  
        });
    }
    public scale_shake_anim(node: Node, duration: number = 0.3, intensity: number = 0.1, shakeCount: number = 10, reset: number | null = null): Promise<void> {
        if (reset) {
            Tween.stopAllByTarget(node);
            node.setScale(reset, reset, reset);
        }
        return new Promise((resolve) => {
            const originalScale = node.scale.clone(); // 保存原始缩放  
            const shakeDuration = duration / (shakeCount * 2); // 每次震动的持续时间  
            const shakeTween = tween(node);
            for (let i = 0; i < shakeCount; i++) {
                const offsetScale = (i % 2 === 0 ? intensity : -intensity); // 交替缩放  
                shakeTween.to(shakeDuration, { scale: v3(originalScale.x + offsetScale, originalScale.y + offsetScale, originalScale.z) })
                    .to(shakeDuration, { scale: originalScale }); // 回到原位  
            }
            shakeTween.call(() => { resolve() }).start(); // 开始缩放震动动画  
        });
    }
    public opacity_shake_anim(node: Node, duration: number = 0.8, intensity: number = 80, shakeCount: number = 5): Promise<void> {
        const opacity = node.getComponent(UIOpacity) ?? node.addComponent(UIOpacity);
        const originalOpacity = opacity.opacity;
        const shakeDuration = duration / (shakeCount * 2);
        return new Promise((resolve) => {
            const shakeTween = tween(opacity);
            for (let i = 0; i < shakeCount; i++) {
                const offsetOpacity = (i % 2 === 0 ? intensity : -intensity);
                shakeTween.to(shakeDuration, { opacity: Math.min(Math.max(originalOpacity + offsetOpacity, 0), 255) })
                    .to(shakeDuration, { opacity: originalOpacity });
            }
            shakeTween.call(() => { resolve() }).start(); // 开始透明度震动动画  
        });
    }
    /**处理弹跳动画*/
    public bounce_anim(node: Node, height: number = 100, duration: number = 0.5): Promise<void> {
        return new Promise((resolve) => {
            tween(node)
                .to(duration, { position: node.position.clone().add(new Vec3(0, height, 0)) }, { easing: 'bounceOut' }) // 向上弹跳  
                .to(duration, { position: node.position }, { easing: 'bounceIn' }) // 回到原位  
                .call(() => { resolve() }) //完成动画  
                .start(); //开始动画
        });
    }
    /**
     * 奖励物飞行动画
     * @param node 奖励物节点
     * @param startPos 起始爆开点
     * @param targetPos 最终目标点
     * @param explosionDistance 爆开距离
     * @param explosionDuration 爆开时间
     * @param stayDuration 停留时间
     * @param moveDuration 移动到目标的时间
     * @returns 
     */
    public reward_fly_anim(node: Node, startPos: Vec3, targetPos: Vec3, explosionDistance: number = 100, explosionDuration: number = 0.3, stayDuration: number = 0.5, moveDuration: number = 0.3): Promise<void> {
        node.setPosition(startPos);
        return new Promise((resolve) => {
            //随机方向
            const randomDirection = new Vec3(Math.random() * 2 - 1, Math.random() * 2 - 1, 0).normalize();
            const explosionEndPos = startPos.add(randomDirection.multiplyScalar(explosionDistance)); // 爆炸效果的位置  
            tween(node)
                .to(explosionDuration, { worldPosition: explosionEndPos }) // 爆炸动画  
                .delay(stayDuration) //停留时间  
                .to(moveDuration, { worldPosition: targetPos }, { easing: 'cubicIn' })
                .call(() => { resolve() }).start();
        });
    }
    private _uiCanvas: Node;
    private _uiRoot: Node;
    private createFullScreenNode() {
        let canvas = this._uiCanvas.getComponent(UITransform);
        let node = new Node();
        node.layer = this._uiCanvas.layer;
        let uiTransform = node.addComponent(UITransform);
        uiTransform.width = canvas.width;
        uiTransform.height = canvas.height;

        let widget = node.addComponent(Widget);
        widget.isAlignBottom = true;
        widget.isAlignTop = true;
        widget.isAlignLeft = true;
        widget.isAlignRight = true;

        widget.left = 0;
        widget.right = 0;
        widget.top = 0;
        widget.bottom = 0;
        return node;
    }
    private getLayers(): GameUILayers[] {
        return Object.values(GameUILayers).filter(value => typeof value === 'number') as GameUILayers[];
    }

    /**
     * @en init,`don't call more than once`.
     * @zh 初始化UIMgr,`不要多次调用`
     *  */
    public init(uiCanvas: Node | Prefab) {
        if (this._uiCanvas) return;
        if (!uiCanvas) throw error('uiCanvas must be a Node or Prefab');
        if (uiCanvas instanceof Node) {
            this._uiCanvas = uiCanvas;
        }
        else {
            this._uiCanvas = instantiate(uiCanvas);
            director.getScene().addChild(this._uiCanvas);
        }
        this._uiCanvas.name = '__ui_canvas__';
        director.addPersistRootNode(this._uiCanvas);
        if (!this._uiCanvas.getComponent(ui_updater)) {
            this._uiCanvas.addComponent(ui_updater);
        }
        let canvas = this._uiCanvas.getComponent(UITransform);
        this._uiCanvas.addComponent(ResolutionAutoFit);
        this._uiRoot = this.createFullScreenNode();
        this._uiRoot.name = 'root'
        canvas.node.addChild(this._uiRoot);
        const layers = this.getLayers();
        //create layers
        for (let i = 0; i < layers.length; ++i) {
            let layerNode = this.createFullScreenNode();
            layerNode.name = 'layer_' + GameUILayers[layers[i]];
            this._uiRoot.addChild(layerNode);
        }
    }
    /**获取层级节点*/
    public getLayerNode(layerIndex: number): Node {
        return this._uiRoot.children[layerIndex] || this._uiRoot;
    }
    /**关闭所有界面*/
    public closeAll() {
        ui_base.closeAll();
    }
    /**关闭和释放所有界面 */
    public closeAndReleaseAll() {
        ui_base.closeAndReleaseAll();
    }
    /**关闭某个界面*/
    public close<T extends ui_base>(uiCls: Constructor<T>): void {
        this.get(uiCls)?.close();
    }
    /**获取界面*/
    public get<T extends ui_base>(uiCls: Constructor<T>): T {
        let all = (ui_base as any)._uis;
        for (let i = 0; i < all.length; ++i) {
            let c = all[i];
            if (c instanceof uiCls) {
                return c;
            }
        }
        return null;
    }
    /**某个界面是否显示中*/
    public isShowing<T extends ui_base>(uiCls: Constructor<T>): boolean {
        return (ui_base as any)._hasCls(uiCls);
    }
    private _clss_loading: Set<any> = new Set();
    /**是否有正在加载中的界面*/
    public isLoading<T extends ui_base>(uiCls: Constructor<T> | null): boolean {
        if (!uiCls) return this._clss_loading.size > 0;
        return this._clss_loading.has(uiCls);
    }
    /***
     * @en show ui by the given parameters.
     * @zh 显示UI
     * @param uiCls the class, must inherits from the class `UIController`.
     * @returns the instance of `uiCls`
     *  */
    public async show<T extends ui_base>(uiCls: Constructor<T>, ...data: any[]): Promise<T | null> {
        if (this.isLoading(uiCls)) return null;
        if (this.isShowing(uiCls)) return null;
        let ui = new uiCls();
        this._clss_loading.add(uiCls);
        let bundleName = ui.bundle;
        if (bundleName) {
            let bundle = assetManager.getBundle(bundleName);
            if (!bundle) {
                try {
                    const loadedBundle = await this.loadBundleAsync(bundleName);
                    return await this._create(loadedBundle, ui, uiCls, ...data);
                } catch (err) {
                    console.error(err);
                    this._clss_loading.delete(uiCls);
                }
            } else {
                return await this._create(bundle, ui, uiCls, ...data);
            }
        } else {
            this._clss_loading.delete(uiCls);
            console.error("ui no bundle name");
            return null;
        }
    }
    private async _create<T extends ui_base>(bundle: AssetManager.Bundle, ui: T, uiCls: Constructor<T>, ...p: any[]): Promise<T> {
        try {
            const data: Prefab = await this.loadPrefabAsync(bundle, ui.prefab);
            let node: Node = instantiate(data);
            let parent = this.getLayerNode(ui.layer);
            parent.addChild(node);
            (ui as any)._setup(uiCls, node, ...p);
            this._clss_loading.delete(uiCls);
            return ui;
        } catch (err) {
            console.error(err);
            this._clss_loading.delete(uiCls);
            return;
        }
    }
    private loadBundleAsync(bundleName: string): Promise<AssetManager.Bundle> {
        return new Promise((resolve, reject) => {
            assetManager.loadBundle(bundleName, null, (err, loadedBundle) => {
                if (err) {
                    reject(err);
                } else {
                    resolve(loadedBundle);
                }
            });
        });
    }
    private loadPrefabAsync(bundle: AssetManager.Bundle, prefabName: string): Promise<Prefab> {
        return new Promise((resolve, reject) => {
            bundle.load(prefabName, (err, data: Prefab) => {
                if (err) {
                    reject(err);
                } else {
                    resolve(data);
                }
            });
        });
    }
}
export const gui = ui.getInstance();
export { ui_base };