fairnesscoop / permacoop

import {

  registerDecorator,

  ValidationOptions,

  ValidationArguments

} from 'class-validator';

export const DateGreaterOrEqualThan = (property: string) => {

  return (object: any, propertyName: string) => {

    const options: ValidationOptions = {

      message: `${propertyName} should be greater or equal than ${property}`

    };

    registerDecorator({

      name: 'dateGreaterOrEqualThan',

      target: object.constructor,

      propertyName,

      constraints: [property],

      options,

      validator: {

        validate(value: any, args: ValidationArguments) {

          const [relatedPropertyName] = args.constraints;

          const relatedValue = (args.object as any)[relatedPropertyName];

          return new Date(value) >= new Date(relatedValue);

        }

      }

    });

  };

};