import SKLogger from "../gear/SKLogger";
import DB from "../utils/DB";
import {MsgCode} from "../role/EEnum";

export default class ZhenbukuiMgr {
    static shared=new ZhenbukuiMgr();
    mall_items:any;
    mapNpcZhenbukuiShop:any;
    totalZBKWeight:number;
    current_items:any;
    constructor() {
        this.mall_items = null;
        this.mapNpcZhenbukuiShop = {};
        this.mapNpcZhenbukuiShop.goods = [];
        this.totalZBKWeight = 0;
        this.current_items = {};
        this.current_items.goods = [];
    }

    init() {
        DB.selectZbkData((code: any, info: any) => {
            //初始化甄不亏的商品数据
            if (MsgCode.SUCCESS == code){
                this.current_items.goods = [];
                for (const zbk of info) {
                    this.totalZBKWeight += +zbk.weight;
                    let mtype = zbk.type == '' ? null : zbk.type;
                    this.mapNpcZhenbukuiShop.goods.push({
                        itemid: zbk.itemid,
                        moneykind: zbk.kind,
                        price: zbk.min_price,
                        min_price: zbk.min_price,
                        max_price: zbk.max_price,
                        quantity: zbk.min_quantity,
                        min_quantity: zbk.min_quantity,
                        max_quantity: zbk.max_quantity,
                        saled_quantity: 0,
                        weight: zbk.weight,
                        type: mtype
                    })
                }
            }
        })
    }

    checkNpcData(npcid:any):boolean{
        if (this.mapNpcZhenbukuiShop.goods.length == 0)
            return false;        
        return true;
    }

    getNpcShopData(npcId?:any):any{
        
        /*
        //不考虑权重，只随机的方式
        this.mapNpcZhenbukuiShop.sort(function() {
            return (0.5-Math.random());
        });

        let zbkShop = this.mapNpcZhenbukuiShop.slice(0,10);
        */            

        if(this.current_items.goods.length == 0){
            //加权随机抽取十个物品
            for(var i = 0;i < 10;i++){     
                this.getRandomItem();              
            }
            //随机商品价格和数量
            let shopItem;
            for(var i = 0;i < 10;i++){
                shopItem = this.current_items.goods[i];
                var r_price = Math.floor(Math.random() * (shopItem.max_price - shopItem.min_price + 1) + shopItem.min_price);                
                shopItem.price = r_price;

                var r_quantity = Math.floor(Math.random() * (shopItem.max_quantity - shopItem.min_quantity + 1) + shopItem.min_quantity); 
                shopItem.quantity = r_quantity;
            }

        }
        return this.current_items;

        
    }


    clearShopItem(){
        this.current_items.goods = [];
    }

    updateShopItem(itemid:any,quantity:any):any{
        SKLogger.debug(`甄不亏售出${itemid}商品${quantity}份`);
        return this.current_items.goods.filter(function(e:any,p:any):boolean{
            if(e.itemid == itemid){
                e.quantity = (e.quantity -= quantity) >= 0 ? e.quantity : 0;
                return true;
            }
            return false;
        });
    }

    getRandomItem(){
        let r_num = Math.ceil(Math.random() * this.totalZBKWeight);
        let tempWeight = 0;
        for(var j = 0;j < this.mapNpcZhenbukuiShop.goods.length;j++){
            let hitWeight = 0;
            let zbkItem = this.mapNpcZhenbukuiShop.goods[j];  
            tempWeight += + zbkItem.weight;   
            if(tempWeight >= r_num){                        
                hitWeight = zbkItem.weight;              
                //去掉已有的物品
                let checkRes = this.current_items.goods.find(function(v:any):boolean{
                    if(v.itemid == zbkItem.itemid)
                        return true;
                    return false;
                });
                if(checkRes == undefined){
                    this.current_items.goods.push(zbkItem);
                }else{
                    this.getRandomItem()
                }  
                break;             
            }
        }
    }

    getMallData(mallid:any):any{
        return this.mall_items[mallid];
    }
}