/**
 * @copyright NHCarrigan
 * @license Naomi's Public License
 * @author Naomi Carrigan
 */

import { ids } from "../config/ids.js";
import { logger } from "../utils/logger.js";
import type { Amari } from "../interfaces/amari.js";
import type { GuildMember, PartialGuildMember } from "discord.js";

/**
 * Run when a guild member leaves. If the member had the mentorship role,
 * notify Naomi.
 * @param amari - Amari's instance.
 * @param member - The member payload from Discord.
 */
export const logMenteeLeave = async(
  amari: Amari,
  member: GuildMember | PartialGuildMember,
): Promise<void> => {
  if (!member.roles.cache.has(ids.roles.mentorship)) {
    return;
  }

  const channel = amari.discord.channels.cache.get(ids.channels.menteeChat)
    ?? await amari.discord.channels.fetch(ids.channels.menteeChat);

  if (channel?.isSendable() !== true) {
    await logger.log(
      "warn",
      "Mentee Chat channel does not exist or is not sendable.",
    );
    return;
  }

  await channel.send({
    content: `Hey <@${ids.users.naomi}>~! 

<@${member.id}> (${member.user.displayName} - ${member.id}) has left the server.

It seems they were part of the mentorship programme, so you may need to offboard them.`,
  });
};