import { registerDecorator, ValidationArguments, ValidationOptions, ValidatorConstraint, ValidatorConstraintInterface } from 'class-validator';


export function IsNumberCustom(validationOptions?: ValidationOptions) {
    return (object: any, propertyName: string) => {
        registerDecorator({
            target: object.constructor,
            propertyName,
            options: validationOptions,

            validator: IsNumberCustomConstraint,
        });
    };
}

@ValidatorConstraint({ name: 'IsNumberCustom' })
export class IsNumberCustomConstraint implements ValidatorConstraintInterface {

    validate(value: any, validationArguments?: ValidationArguments) {
        if (typeof value === "number") {
            return true
        } else if (typeof value === "string" && value.match(/ /) !== null) {
            return false
        } else if (typeof value === "string") {
            let valueParse = parseFloat(value)
            if ((value !== undefined && value !== null && !isNaN(valueParse)) && typeof valueParse === "number") {
                return true
            } else {
                return false
            }
        } else {
            return false
        }

    }
    defaultMessage(validationArguments?: ValidationArguments): string {
        return "validation.INVALID_NUMBER"
        // return "{"+validationArguments.property + "} " + "response.message.stringValidationFailed
    }

}