import {
  ValidationArguments,
  ValidatorConstraint,
  ValidatorConstraintInterface,
} from "class-validator";

@ValidatorConstraint({ name: "hasObjectionEntries", async: false })
export class HasObjectionEntriesConstraint
  implements ValidatorConstraintInterface
{
  validate(_value: unknown, args: ValidationArguments): boolean {
    const o = args.object as {
      objectionParts?: unknown[];
      newParts?: unknown[];
    };
    const partsLen = Array.isArray(o.objectionParts) ? o.objectionParts.length : 0;
    const newLen = Array.isArray(o.newParts) ? o.newParts.length : 0;
    return partsLen > 0 || newLen > 0;
  }

  defaultMessage(): string {
    return "Provide at least one entry in objectionParts and/or newParts.";
  }
}