/**
 * Utility object for handling hexadecimal and binary data conversions.
 * @namespace
 */
export const HexMix = {
  /**
   * Converts a Uint8Array to a hexadecimal string.
   * @param {Uint8Array} data - The input Uint8Array.
   * @returns {string} The hexadecimal representation of the input data.
   */
  uint8ToHex(data) {
    return Array.from(data, (byte) => ("00" + byte.toString(16)).slice(-2)).join("");
  },

  /**
   * Converts a hexadecimal string to a Uint8Array.
   * @param {string} data - The input hexadecimal string.
   * @returns {Uint8Array} The Uint8Array representation of the input data.
   */
  hexToUint8(data) {
    const hexArray = data.match(/.{1,2}/g);
    return hexArray ? new Uint8Array(hexArray.map((char) => parseInt(char, 16))) : new Uint8Array(0);
  },

  /**
   * Converts an ArrayBuffer to a Base64 string.
   * @param {ArrayBuffer} buf - The input ArrayBuffer.
   * @returns {string} The Base64 representation of the input data.
   */
  arrayBufferToBase64(buf) {
    return btoa(String.fromCharCode.apply(null, new Uint8Array(buf)));
  },

  /**
   * Converts a string to an ArrayBuffer.
   * @param {string} str - The input string.
   * @returns {ArrayBuffer} The ArrayBuffer representation of the input string.
   */
  stringToArrayBuffer(str) {
    const array = new Uint8Array(str.length);
    for (let i = 0; i < str.length; i++) {
      array[i] = str.charCodeAt(i);
    }
    return array.buffer;
  }
};