const ReactCommand = require('../react-command/')

/**
 * An array of emoji button that attach to a message to do different actions
 */
class ReactInterface {
  /**
   * Construct a react interface
   * @class
   * @param {Object}                      data                                The react interface data
   * @prop  {ReactCommand[]|ReactCommand} data.buttons                        The buttons of the interface
   * @prop  {Object}                      [data.options={}]                   The options for the interface
   * @prop  {String[]|String}             [data.options.designatedUsers]      The IDs of the users who can use the react interface. By default, it's the owner of the message reacted on
   * @prop  {Boolean}                     [data.options.deleteAfterUse=false] Whether the interface is deleted after a use or not
   * @prop  {Boolean}                     [data.options.removeReaction=false] Whether the triggering reaction is removed after executed or not
   * @prop  {Number}                      [data.options.authLevel=0]          The minimum auth level required to execute this command
   */
  constructor ({ buttons, options = {} }) {
    if (!Array.isArray(buttons)) buttons = [buttons]

    const {
      designatedUsers,
      deleteAfterUse = false,
      removeReaction = false
    } = options
    const authLevel = parseInt(options.authLevel) || 0

    /**
     * The buttons of the interface
     * @type {Map<String, ReactCommand>}
     */
    this.buttons = new Map()
    for (const button of buttons) {
      if (!(button instanceof ReactCommand)) throw TypeError('Supplied button not ReactCommand instance:\n' + button)

      if (designatedUsers) button.options._designatedUsers = Array.isArray(designatedUsers) ? designatedUsers : [designatedUsers]
      if (removeReaction) button.options.removeReaction = true
      button.options.authLevel = authLevel

      button.parentInterface = this

      this.buttons.set(button.emoji, button)
    }

    /**
     * The options for the interface
     * @type {Object}
     * @prop {String[]|undefined} designatedUsers The IDs of the users who can use the react interface. By default, it's the owner of the message reacted on (defined by `ReactionHandler.bindInterface()`)
     * @prop {Boolean}            deleteAfterUse  Whether the interface is deleted after a use or not
     * @prop {Boolean}            removeReaction  Whether the triggering reaction is removed after executed or not
     * @prop {Number}             authLevel       The minimum auth level required to execute this command
     */
    this.options = {
      designatedUsers: designatedUsers ? (Array.isArray(designatedUsers) ? designatedUsers : [designatedUsers]) : undefined,
      deleteAfterUse,
      removeReaction,
      authLevel
    }
  }
}

module.exports = ReactInterface