import SKLoadData, { SKLoadType } from "./SKLoadData";
import FGUtil from "../fgui/FGUtil";

export default class SKLoader
{
    static shared=new SKLoader();

    progressBlock:(data:SKLoadData,progress:number)=>void;
    completeBlock:(data:SKLoadData,resource:any[],urls:string[])=>void;
    doneBlock:()=>void;
    list:SKLoadData[];
    current:number;
    isLoading:boolean;

    load(list:SKLoadData[],progress:(data:SKLoadData,progress:number)=>void,complete:(data:SKLoadData,resource:any[],urls:any[])=>void,done:()=>void){
        this.list=list;
        this.progressBlock=progress;
        this.completeBlock=complete;
        this.doneBlock=done;
        this.current=0;
        this.isLoading=true;
        let self=this;
        for(let data of list){
            switch(data.type){
                case SKLoadType.Gui:
                    FGUtil.load("gui/main_ui",(progress:number)=>{
                        if(isNaN(progress)){
                            progress=0;
                        }
                        self.progressBlock(data,progress);
                    },(error:Error)=>{
                        if(error){
                            cc.error(error.message);
                            self.current++;
                            self.checkDone(data.url);
                            return;
                        }
                        self.completeBlock(data,null,null);
                        self.current++;
                        self.checkDone(data.url);
                    });
                    break;
                case SKLoadType.Json:
                    cc.loader.loadRes(data.url,cc.JsonAsset,(completedCount:number,totalCount:number,item:any)=>{
                        let progress=0;
                        if(totalCount>0){
                            progress=completedCount/totalCount;
                        }
                        self.progressBlock(data,progress);
                    },(error: Error, resource: any)=>{
                        if(error){
                            cc.error(error.message);
                            self.current++;
                            self.checkDone(data.url);
                            return;
                        }
                        self.completeBlock(data,[resource],null);
                        self.current++;
                        self.checkDone(data.url);
                    });
                    break;
                case SKLoadType.Text:
                        cc.loader.loadRes(data.url,cc.TextAsset,(completedCount:number,totalCount:number,item:any)=>{
                            let progress=0;
                            if(totalCount>0){
                                progress=completedCount/totalCount;
                            }
                            self.progressBlock(data,progress);
                        },(error: Error, resource: any)=>{
                            if(error){
                                cc.error(error.message);
                                self.current++;
                                self.checkDone(data.url);
                                return;
                            }
                            self.completeBlock(data,[resource],null);
                            self.current++;
                            self.checkDone(data.url);
                        });
                        break;
                case SKLoadType.Prefab:
                    cc.loader.loadRes(data.url,cc.Prefab,(completedCount:number,totalCount:number,item:any)=>{
                        let progress=0;
                        if(totalCount>0){
                            progress=completedCount/totalCount;
                        }
                        self.progressBlock(data,progress);
                    },(error: Error, resource: any)=>{
                        if(error){
                            cc.error(error.message);
                            self.current++;
                            self.checkDone(data.url);
                            return;
                        }
                        self.completeBlock(data,[resource],null);
                        self.current++;
                        self.checkDone(data.url);
                    });
                    break;
                case SKLoadType.Atlas:
                    cc.loader.loadRes(data.url,cc.SpriteAtlas,(completedCount:number,totalCount:number,item:any)=>{
                        let progress=0;
                        if(totalCount>0){
                            progress=completedCount/totalCount;
                        }
                        self.progressBlock(data,progress);
                    },(error: Error, resource: any)=>{
                        if(error){
                            cc.error(error.message);
                            self.current++;
                            self.checkDone(data.url);
                            return;
                        }
                        self.completeBlock(data,[resource],null);
                        self.current++;
                        self.checkDone(data.url);
                    });
                    break;
                case SKLoadType.Dir:
                    if(data.type === SKLoadType.Dir){
                        cc.loader.loadResDir(data.url,(completedCount:number,totalCount:number,item:any)=>{
                            let progress:number=completedCount/totalCount;
                            self.progressBlock(data,progress);
                        },(error:Error,resources:any[],urls:string[])=>{
                            if(error){
                                cc.error(error.message);
                                self.current++;
                                self.checkDone(data.url);
                                return;
                            }
                            self.completeBlock(data,resources,urls);
                            self.current++;
                            self.checkDone(data.url);
                        });
                    }
                    break;
                default:
cc.log(`未知的加載類型:${data.type}`);
                    self.current++;
                    self.checkDone(data.url);
                    break;
            }
        }
    }
// 檢查是否全部加載完成
    private checkDone(url:string){
        if(!this.isLoading){
            return;
        }
cc.log(`檢查加載完成:[${url}]${this.current}/${this.list.length}`);
        if(this.current>=this.list.length){
            this.isLoading=false;
            this.doneBlock();
            return;
        }
    }
}