import {registerDecorator} from "../../src/index";
import {ValidationOptions} from "../../src/decorator/ValidationOptions";
import {ValidationArguments} from "../../src/validation/ValidationArguments";

export function IsUserAlreadyExist(validationOptions?: ValidationOptions) {
    return function (object: Object, propertyName: string) {
        registerDecorator({
            name: "isUserAlreadyExist",
            async: true,
            target: object.constructor,
            propertyName: propertyName,
            options: validationOptions,
            validator: {
                validate(value: any, args: ValidationArguments) {
                    return new Promise(ok => {
                        if (value !== "admin" && value !== "user") {
                            ok(true);
                        } else {
                            ok(false);
                        }
                    });
                }
            }
        });
    };
}