const { Events } = require('discord.js');
const { readDb } = require('../../backend/db.js');

module.exports = {
	name: Events.GuildMemberRemove,
	async execute(member) {
		try {
			const db = readDb();
			const settings = db[member.guild.id];

			if (settings && settings.leaveEnabled && settings.leaveChannel) {
				let channel = member.guild.channels.cache.get(settings.leaveChannel);
				if (!channel) {
					try {
						channel = await member.guild.channels.fetch(settings.leaveChannel);
					} catch (err) {
						return;
					}
				}

				if (channel && channel.isTextBased && channel.isTextBased()) {
					try {
						const me = member.guild.members.me;
						const perms = channel.permissionsFor(me);
						if (!perms || !perms.has('ViewChannel') || !perms.has('SendMessages')) {
							return;
						}

						const userMention = member.user ? (member.user.toString ? member.user.toString() : member.user.tag) : 'A user';
						const message = (settings.leaveMessage || '{user} has left the server.').replace('{user}', userMention).replace('{server}', member.guild.name);
						await channel.send(message);
					} catch (error) {
						console.error(`Could not send leave message to channel ${settings.leaveChannel} in guild ${member.guild.id}:`, error);
					}
				} else {
					return;
				}
			}
		} catch (error) {
			console.error(`Error in guildMemberRemove event for guild ${member.guild.id}:`, error);
		}
	},
};