import { _decorator, Component, Node, Prefab, Material, assetManager, AudioClip } from 'cc';
const { ccclass, property } = _decorator;
import { config, IdToName } from './CubeConfig';

const m_bundle = [
    { name: 'CubePrefab', url: 'Cube', type: 'Prefab', variable: 'cubePrefab' },
    { name: 'Materials', url: '', type: 'Material', variable: 'materials' },
    { name: 'GUI', url: 'MainCanvas', type: 'Prefab', variable: 'mainCanvas' },
    { name: 'GUI', url: 'UI_Show', type: 'Prefab', variable: 'ui_Show' },
    { name: 'GUI', url: 'SettingsPanel', type: 'Prefab', variable: 'settingsPanel' },
    { name: 'GUI', url: 'RankPanel', type: 'Prefab', variable: 'rankPanel' },
    { name: 'GUI', url: 'Item', type: 'Prefab', variable: 'item' },
    { name: 'GUI', url: 'InforPanel', type: 'Prefab', variable: 'inforPanel' },
    { name: 'GUI', url: 'AdPanel', type: 'Prefab', variable: 'adPanel' },
    { name: 'GUI', url: 'ResultPanel', type: 'Prefab', variable: 'resultPanel' },
    { name: 'GUI', url: 'SignPanel', type: 'Prefab', variable: 'signPanel' },
    { name: 'Container', url: 'Container', type: 'Prefab', variable: 'container' },
    { name: 'Audio', url: '', type: 'AudioClip', variable: '' },

]


@ccclass('LoadRes')
export class LoadRes {
    private static instance: LoadRes = null;
    private resourcesLoadedCount: number = 0;
    private onResourceLoaded: () => void = null;
    @property(Prefab)
    public cubePrefab: Prefab = null;// 方块
    @property(Material)
    public materials: Material[] = [];// 材质
    @property(Prefab)
    public container: Prefab = null;// 容器
    @property(Prefab)
    public mainCanvas: Prefab = null;// 主界面
    @property(Prefab)
    public settingsPanel: Prefab = null;// 设置界面
    @property(Prefab)
    public rankPanel: Prefab = null;// 排行榜界面
    @property(Prefab)
    public inforPanel: Prefab = null;// 个人信息界面
    @property(Prefab)
    public ui_Show: Prefab = null;// UI界面
    @property(Prefab)
    public adPanel: Prefab = null;//广告界面
    @property(Prefab)
    public resultPanel: Prefab = null;//结算界面
    @property(Prefab)
    public signPanel: Prefab = null;
    @property(Prefab)
    public item: Prefab = null;


    private constructor() {
        // 私有化构造函数以防止外部实例化
    }

    public static getInstance(): LoadRes {
        if (LoadRes.instance === null) {
            LoadRes.instance = new LoadRes();
        }
        return LoadRes.instance;
    }

    setOnResourceLoaded(callback: () => void) {
        this.onResourceLoaded = callback;
    }

    StartLoadRes() {
        for (let i = 0; i < m_bundle.length; i++) {
            if (m_bundle[i].type === 'Prefab') {
                this.preloadPrefab(i);
            }
            else if (m_bundle[i].type === 'Material') {
                this.preloadMaterial(i);
            }
            else if (m_bundle[i].type === 'AudioClip') {
                this.preloadAudio(i);
            }
            else if (m_bundle[i].type === 'Font') {
                this.preloadFont(i);
            }
        }
    }

    update(deltaTime: number) {

    }

    preloadPrefab(index: number) {
        assetManager.loadBundle(m_bundle[index].name, (err, bundle) => {
            bundle.load(m_bundle[index].url, Prefab, (err, prefab) => {
                if (err) {
                    console.error(err);
                    return;
                }
                this[m_bundle[index].variable] = prefab;
                if (this.onResourceLoaded) {
                    this.onResourceLoaded();
                }
                this.checkAllResourcesLoaded();
            });
        });
    }

    preloadMaterial(index: number) {
        const materialPromises: Promise<void>[] = [];
        for (let i = 0; i < 5; i++) {
            materialPromises.push(new Promise<void>((resolve, reject) => {
                assetManager.loadBundle(m_bundle[index].name, (err, bundle) => {
                    if (err) {
                        console.error(err);
                        return;
                    }
                    bundle.load(config[IdToName[i]].effectName, Material, (err, material) => {
                        if (err) {
                            console.error(err);
                            reject(err);
                        } else {
                            this[m_bundle[index].variable][i] = material;
                            resolve();
                        }
                    });
                });
            }));
        }

        Promise.all(materialPromises).then(() => {
            this[m_bundle[index].variable].forEach((material, index) => {
                material.initialize({
                    effectName: config[IdToName[index]].effectName,
                    defines: {
                        USE_RGBE_CUBEMAP: true
                    }
                });
                if (this.onResourceLoaded) {
                    this.onResourceLoaded();
                }
            });
            this.checkAllResourcesLoaded();
        }).catch(error => {
            console.error('Error loading materials:', error);
        });
    }

    preloadAudio(index: number) {
        assetManager.loadBundle(m_bundle[index].name, (err, bundle) => {
            if (this.onResourceLoaded) {
                this.onResourceLoaded();
            }
            this.checkAllResourcesLoaded();
        });
    }

    preloadFont(index: number) {
        assetManager.loadBundle(m_bundle[index].name, (err, bundle) => {
            if (this.onResourceLoaded) {
                this.onResourceLoaded();
            }
            this.checkAllResourcesLoaded();
        });
    }

    private checkAllResourcesLoaded(): void {
        this.resourcesLoadedCount++;
        if (this.resourcesLoadedCount === 4) {
            //资源都加载好了
        }
    }
}