[DOCS] documents some files in the 'build' folder

Author: carlos3g

src/build/Commands.js

@@ -2,11 +2,21 @@ function isFunction(object) {
   return typeof object === 'function';
 }
 
+/**
+ * Commands wrapper
+ * @param {object} commands - Object that contains the commands.
+ * @param {object} commands.* - A command. The key and value must be, respectively, the command name and a callback function for the command.
+ */
 class Commands {
   constructor() {
     this.commands = {};
   }
 
+  /**
+   * Sets a command in Commands instance.
+   * @param {string} name - Command's name.
+   * @param {function} callback - Callback to command.
+   */
   set(name, callback) {
     if (!isFunction(callback)) {
       throw new Error(`${callback} must be a function`);
@@ -15,11 +25,29 @@ class Commands {
     this.commands[name] = callback;
   }
 
+  /**
+   * Checks if a command is set in Commands instance.
+   * @param {string} cmd - The command's name.
+   * @returns {boolean} `True` if the command is set in Commands instance, `False` if not.
+   */
   has(cmd) {
     const availableCommands = Object.keys(this.commands);
     return availableCommands.includes(cmd);
   }
 
+  /**
+   * Calls (executes) a command.
+   * @param {string} cmd - The command's name to be called.
+   * @param {object} data - The data extracted from the message that called the command.
+   * @param {string} data.command - The command's name extracted from the message.
+   * @param {string[]} data.args - The args extracted from the message.
+   * @param {object} data.kwargs - The kwargs extracted from the message.
+   * @param {string} data.text - The text extracted from the message. This text NOT includes command's name, args and kwargs.
+   * @param {Message} message - The message that called the command.
+   * @param {Session} client - The whatsapp web session.
+   * @see https://docs.wwebjs.dev/Message.html
+   * @see https://docs.wwebjs.dev/Client.html
+   */
   async call(cmd, data, message, client) {
     if (!this.has(cmd)) {
       throw new Error(`${cmd} is not registered`);