import { ValidationOptions } from "../ValidationOptions";
import { buildMessage, ValidateBy } from "../common/ValidateBy";

export const IS_NOT_EMPTY = "isNotEmpty";

/**
 * Checks if given value is not empty (!== '', !== null, !== undefined).
 */
export function isNotEmpty(value: unknown): boolean {
    return value !== "" && value !== null && value !== undefined;
}

/**
 * Checks if given value is not empty (!== '', !== null, !== undefined).
 */
export function IsNotEmpty(validationOptions?: ValidationOptions): PropertyDecorator {
    return ValidateBy(
        {
            name: IS_NOT_EMPTY,
            validator: {
                validate: (value, args): boolean => isNotEmpty(value),
                defaultMessage: buildMessage(
                    (eachPrefix) => eachPrefix + "$property should not be empty",
                    validationOptions
                )
            }
        },
        validationOptions
    );
}