export class VerificationError extends Error {
   constructor(
      public readonly type?: string,
      public readonly field?: string,
      public readonly value?: any
   ) {
      super("Parameter verification failed!");
   }
}

export function verify_number(data: any) {
   if (typeof data !== "number") throw new VerificationError("number", undefined, data);
   return data;
}

export function strip_number(data: any) {
   return data;
}

export function verify_string(data: any) {
   if (typeof data !== "string") throw new VerificationError("string", undefined, data);
   return data;
}

export function strip_string(data: any) {
   return data;
}

export function verify_boolean(data: any) {
   if (typeof data !== "boolean") throw new VerificationError("boolean", undefined, data);
   return data;
}

export function strip_boolean(data: any) {
   return data;
}

//TODO: Should it return data? it is kinda undefined actually...
export function verify_void(data: any) {}

export function strip_void(data: any) {
   return undefined;
}