/**
 * AddressValidator class that provides methods for validating and cleaning address inputs.
 * It includes methods to clean the input string, validate address formats, and ensure proper
 * formatting for street names, house numbers, and additional text.
 */
class AddressValidator {
  /**
   * Cleans the input string by removing unwanted characters.
   * This allows only letters, numbers, spaces, and hyphens.
   *
   * @param {string} value - The address input string to be cleaned.
   * @returns {string} - The cleaned input string.
   */
  static cleanInput(value: string) {
    // Remove any character that is not a letter, number, space, or hyphen
    return value.replace(/[^a-zA-Z0-9\s\-]/g, ""); // Allow spaces, letters, numbers, and hyphens
  }

  /**
   * Validates the format of an address.
   * Ensures the address has a valid street name followed by a house number.
   *
   * @param {string} address - The address string to validate.
   * @returns {boolean} - Returns true if the address format is valid, false otherwise.
   */
  static validateAddressFormat(address: string) {
    // Match the house number at the end of the address
    const houseNumberMatch = address.match(/(\d+)\s*$/); // Match house number at the end
    // Get the street name by removing the house number part
    const streetName = address.replace(/\d+\s*$/, "").trim(); // Get the part before the house number

    // Ensure the street name contains only letters, numbers, or spaces and the house number is present
    return /^[a-zA-Z0-9\s]+$/.test(streetName) && houseNumberMatch !== null;
  }

  /**
   * Validates that the house number does not come before the street name.
   * This ensures that the street name is always placed first, followed by the house number.
   *
   * @param {string} address - The address string to validate.
   * @returns {boolean} - Returns true if the house number is correctly placed after the street name, false otherwise.
   */
  static validateHouseNumberBeforeStreet(address: string) {
    // Ensure that the address does not start with a number followed by a space (house number before street)
    return !/^\d+\s/.test(address); // Ensure the house number doesn't come before the street name
  }

  /**
   * Validates that no extra text exists after the house number.
   * This ensures that the house number is followed only by the street name, and not additional text.
   *
   * @param {string} address - The address string to validate.
   * @returns {boolean} - Returns true if no extra text follows the house number, false otherwise.
   */
  static validateExtraTextAfterHouseNumber(address: string) {
    // Ensure there is no extra text (e.g., letters) after the house number
    return !/\d+\s*[a-zA-Z]+$/.test(address); // Ensure no extra text comes after the house number
  }
}

export default AddressValidator;