import { Request } from "express"
import { FieldParser } from "./base"

export class RequestBodyFieldParser extends FieldParser<Request> {
   public constructor(field:string) {
      super(field)
   }

   public parse(request:Request):void {
      let field = this.field
      let requestMethod = request.method
      let requestBody

      if ( requestMethod === "POST" ) {
         requestBody = request.body
      } else {
         requestBody = request.query
      }

      if ( requestBody[field] ) {
         if ( typeof requestBody[field] === "string" ) {
            this.fieldValue = requestBody[field].toString()
         } else {
            this.fieldValue = JSON.stringify(requestBody[field])
         }
      }

   }
}