react-native-moyasar-sdk/lib/module/services/validators/field_validator.js

Official React Native Moyasar SDK - Integrate Credit Cards, Apple Pay, Samsung Pay, and STC Pay with simple interfaces for a seamless payment experience in your React Native app

"use strict";

export class FieldValidator {
  rules = [];
  shouldErr = false;
  addRule(error, predicate) {
    this.rules.push({
      predicate,
      error
    });
  }

  // TODO: Refactor to named params
  /**
   * Validates input but only shows errors after the field has been touched
   * @param value The value to validate
   * @param creditCardNumber Optional credit card number
   * @param supportedNetworks Optional array of supported credit card networks (Needed for supported networks validation)
   * @returns Error message if validation fails and the field has been touched, null otherwise
   */
  visualValidate(value, creditCardNumber, supportedNetworks) {
    this.shouldErr = this.shouldErr || value !== '';
    if (!this.shouldErr) {
      return null;
    }
    return this.validate(value, creditCardNumber, supportedNetworks);
  }

  // TODO: Refactor to named params
  /**
   * Validates input against defined rules
   * @param value The value to validate
   * @param creditCardNumber Optional credit card number
   * @param supportedNetworks Optional array of supported credit card networks (Needed for supported networks validation)
   * @returns Error message if validation fails, null if validation passes
   */
  validate(value, creditCardNumber, supportedNetworks) {
    for (const rule of this.rules) {
      if (rule.predicate(value, creditCardNumber, supportedNetworks)) {
        return rule.error;
      }
    }
    return null;
  }
}
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