import { SmsErrorMessage } from '../errors/handleSmsError';
import { ValidationResult } from '../../core/validator';

const validateSendAt = (sendAt: Date): ValidationResult => {
	if (Number.isNaN(sendAt.getTime())) {
		return {
			cause: SmsErrorMessage.TIME_INVALID,
			isValid: false,
		};
	}

	if (sendAt.getTime() < Date.now()) {
		return {
			cause: SmsErrorMessage.TIME_MUST_BE_IN_FUTURE,
			isValid: false,
		};
	}

	if (sendAt.getTime() > Date.now() + 30 * 24 * 60 * 60 * 1000) {
		return {
			cause: SmsErrorMessage.TIME_TOO_FAR_IN_FUTURE,
			isValid: false,
		};
	}

	return { isValid: true };
};

export { validateSendAt };