import { BaseProvider } from './base'
import { BaseModel } from '../model'
import { OperaterFactory, IOperater } from './operater'

/**
* Provider 工厂类
* 
* @export
* @class ProviderFactory
*/
export class ProviderFactory {

    private static _porviders: {
        [x: number]: any;
        [x: string]: any
    } = {};

    /**
     * 获取Provider
     * 
     * @static
     * @template P Provider类
     * @template Op Operater类
     * @template M Model类
     * @param {new () => P} Provider 
     * @returns {P} 
     * @memberof ProviderFactory
     */
    public static get<P extends BaseProvider<M, Op>, Op extends IOperater<M>, M extends BaseModel>(Provider: new () => P): P {
        if (!this._porviders[Provider.name]) {
            this._porviders[Provider.name] = new Provider();
        }
        return (this._porviders[Provider.name]) as P;
    }
}

export {
    BaseProvider,
    OperaterFactory,
    IOperater
}