import { CADObject } from "../DatabaseServices/CADObject";

class Appcache
{
    private _cacheMap: Map<string, any> = new Map();

    //在缓存排钻的时候,我们避免它重复缓存
    _DrillCacheed = new Set<string>();

    has(key: string)
    {
        return this._cacheMap.has(key);
    }
    get(key: string): any | undefined
    {
        let val = this._cacheMap.get(key);
        if (val === undefined) return;

        if (typeof val === "string" || typeof val === 'number')
            return val;
        if (val instanceof CADObject)
            return val.Clone();
        if (Array.isArray(val) && val[0] instanceof CADObject)
            return val.slice();

        return JSON.parse(JSON.stringify(val));
    }
    set<T>(key: string, value: T)
    {
        this._cacheMap.set(key, value);
    }
    clear()
    {
        this._DrillCacheed.clear();
        this._cacheMap.clear();
    }
    delete(k: string)
    {
        this._cacheMap.delete(k);
    }
}

export const appCache = new Appcache();