import { Request, Response } from "express";
import BadRequestException from "../exceptions/badRequestException";

export default class ParamaterPassCheckHelper {
  static requiredIncluded(testfor: Array<string>, obj: object) {
    let result = testfor.every((key) => Object.keys(obj).includes(key));
    if (!result) throw new BadRequestException(`not all required parameters included: ${testfor.join(",")}`);
  }

  static forbiddenIncluded(testfor: Array<string>, obj: object) {
    let result = testfor.some((key) => Object.keys(obj).includes(key));
    if (!result) throw new BadRequestException(`PPC: forbidden parameters included: ${testfor.join(",")}`);
  }

  static requiredIncludedMiddleware(testfor: Array<string>): (req: Request, res: Response, next: Function) => void {
    return (req: Request, res: Response, next: Function) => {
      this.requiredIncluded(testfor, req.body);
      next();
    };
  }

  static forbiddenIncludedMiddleware(testfor: Array<string>): (req: Request, res: Response, next: Function) => void {
    return (req: Request, res: Response, next: Function) => {
      this.requiredIncluded(testfor, req.body);
      next();
    };
  }
}