//////////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (c) 2014-present, Egret Technology.
//  All rights reserved.
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the Egret nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY EGRET AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
//  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
//  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
//  IN NO EVENT SHALL EGRET AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
//  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;LOSS OF USE, DATA,
//  OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
//  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
//  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
//  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//////////////////////////////////////////////////////////////////////////////////////


class Main extends eui.UILayer {
    public static emitter: Emitter<CoreEmitterType>; 

    protected createChildren(): void {
        super.createChildren();

        egret.lifecycle.addLifecycleListener((context) => {
            // custom lifecycle plugin
        })

        egret.lifecycle.onPause = () => {
            egret.ticker.pause();
        }

        egret.lifecycle.onResume = () => {
            egret.ticker.resume();
        }

        //inject the custom material parser
        //注入自定义的素材解析器
        let assetAdapter = new AssetAdapter();
        egret.registerImplementation("eui.IAssetAdapter", assetAdapter);
        egret.registerImplementation("eui.IThemeAdapter", new ThemeAdapter());

        Main.emitter = new Emitter<CoreEmitterType>();
        this.addEventListener(egret.Event.ENTER_FRAME, this.updateFrame, this);
        this.runGame();
    }

    private updateFrame(evt: egret.Event){
        Main.emitter.emit(CoreEmitterType.Update, evt);
        let activeScene = SceneManager.getActiveScene();
        if (activeScene){
            let player = activeScene.findEntity("player");
            if (player){
                let mover = player.getComponent<Mover>(Mover);
                mover.move(new Vector2(0, 0));
            }
        }
    }

    private async runGame() {
        await this.loadResource();
        this.createGameScene();
    }

    private async loadResource() {
        try {
            const loadingView = new LoadingUI();
            this.stage.addChild(loadingView);
            await RES.loadConfig("resource/default.res.json", "resource/");
            await this.loadTheme();
            await RES.loadGroup("preload", 0, loadingView);
            this.stage.removeChild(loadingView);
        }
        catch (e) {
            console.error(e);
        }
    }

    private loadTheme() {
        return new Promise((resolve, reject) => {
            // load skin theme configuration file, you can manually modify the file. And replace the default skin.
            //加载皮肤主题配置文件,可以手动修改这个文件。替换默认皮肤。
            let theme = new eui.Theme("resource/default.thm.json", this.stage);
            theme.addEventListener(eui.UIEvent.COMPLETE, () => {
                resolve();
            }, this);

        })
    }

    /**
     * 创建场景界面
     * Create scene interface
     */
    protected createGameScene(): void {
        let scene = SceneManager.createScene("main", new MainScene(this)).setActive();
        let player = scene.createEntity("player");
        player.addComponent(new PolygonMesh([new Vector2(0, 0),
            new Vector2(10, 0),
            new Vector2(10, 10),
            new Vector2(0, 10),
            new Vector2(0, 0)]));
        player.addComponent(new SpawnComponent(EnemyType.worm));
        player.addComponent(new BoxCollider()).setSize(100, 100).isTrigger = true;
        player.addComponent(new Mover());

        let player2 = scene.createEntity("player2");
        player2.addComponent(new BoxCollider()).setSize(99, 99);

        // Main.emitter.addObserver(CoreEmitterType.Update, ()=>{
        //     console.log("update emitter");
        // });
    }
}