validation.js

/**
 * @param {string} path
 * @returns {Boolean}
 */
export function isExternal(path) {
  return /^(https?:|mailto:|tel:)/.test(path)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validUsername(str) {
  const valid_map = ['admin', 'editor']
  return valid_map.indexOf(str.trim()) >= 0
}

/**
 * @param {string} url
 * @returns {Boolean}
 */
export function validURL(url) {
  const reg = /^(https?|ftp):\/\/([a-zA-Z0-9.-]+(:[a-zA-Z0-9.&%$-]+)*@)*((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}|([a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(:[0-9]+)*(\/($|[a-zA-Z0-9.,?'\\+&%$#=~_-]+))*$/
  return reg.test(url)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validLowerCase(str) {
  const reg = /^[a-z]+$/
  return reg.test(str)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validUpperCase(str) {
  const reg = /^[A-Z]+$/
  return reg.test(str)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validAlphabets(str) {
  const reg = /^[A-Za-z]+$/
  return reg.test(str)
}

/**
 * @param {string} email
 * @returns {Boolean}
 */
export function validEmail(email) {
  const reg = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
  return reg.test(email)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function isString(str) {
  if (typeof str === 'string' || str instanceof String) {
    return true
  }
  return false
}

/**
 * @param {Array} arg
 * @returns {Boolean}
 */
export function isArray(arg) {
  if (typeof Array.isArray === 'undefined') {
    return Object.prototype.toString.call(arg) === '[object Array]'
  }
  return Array.isArray(arg)
}

/**
 * @param {number} value1
 * @param {number} value2
 * @returns {Boolean}
 */
export function sameAs(value1, value2) {
  return value1 === value2
}

/**
 * @param {string} value
 * @returns {Boolean}
 */
const isNotCyrillic = value => {
  if (value === undefined || value === null) return false;
  return !/[а-я]/i.test(value.toLowerCase());
};

/**
 * @param {string} value
 * @returns {Boolean}
 */
const isHasEnglishLetter = value => {
  if (value === undefined || value === null) return false;
  return /[a-z]/i.test(value.toLowerCase());
};

/**
 * @param {file} value
 * @param {number} maxSize
 * @returns {Boolean}
 */
const fileMaxSize = (value, maxSize) => {
  if (value === undefined || value === null) return false;
  return value.size <= maxSize;
};

/**
 * @param {array} value
 * @param {number} maxSize
 * @returns {Boolean}
 */
const fileMultipleSize = (value, maxSize) => {
  if (value === undefined || value === null) return false;
  let validSize = true;
  if (value.length) {
    value.forEach(item => {
      if (item.size >= maxSize) validSize = false;
    });
  }
  return validSize;
};

/**
 * @param {array} value
 * @param {number} maxCount
 * @returns {Boolean}
 */
const fileMaxCount = (value, maxCount) => {
  if (value === undefined || value === null) return false;
  return value.length <= maxCount;
};

/**
 * @param {number} value
 * @returns {Boolean}
 */
const positiveNumbers = value => {
  if (value === undefined || value === null) return false;
  return parseInt(value) > 0;
};

/**
 * @param {number} value
 * @returns {Boolean}
 */
const naturalCount = value => {
  if (value === undefined || value === null || value === "") return true;
  return parseInt(value) >= 0;
};