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

module.exports = {
	name: Events.GuildMemberAdd,
	async execute(member) {
			try {
				const api = require('../api');
				const settings = (await api.getServerSettings(member.guild.id)) || {};

				const welcome = {
					enabled: settings.welcomeEnabled || false,
					channel: settings.welcomeChannel || '',
					message: settings.welcomeMessage || 'Welcome {user} to {server}!'
				};

				if (welcome && welcome.enabled && welcome.channel) {
					const channel = member.guild.channels.cache.get(welcome.channel);
					if (channel) {
						try {
							const message = (welcome.message).replace('{user}', member.user.toString()).replace('{server}', member.guild.name);
							await channel.send(message);
						} catch (error) {
							console.error(`Could not send welcome message to channel ${welcome.channel} in guild ${member.guild.id}:`, error);
						}
					}
				}

				const autorole = settings.autorole || {};
				if (autorole && autorole.enabled && autorole.roleId) {
					const role = member.guild.roles.cache.get(autorole.roleId);
					if (role) {
						try {
							// Re-check that role is assignable
							const botHighest = member.guild.members.me.roles.highest.position;
							if (role.id === member.guild.id || role.managed || role.position >= botHighest) {
								console.warn(`Autorole ${role.id} in guild ${member.guild.id} is not assignable (everyone/managed/too high). Skipping.`);
								return;
							}
							await member.roles.add(role);
						} catch (error) {
							console.error(`Could not assign autorole in guild ${member.guild.id}:`, error);
						}
					}
				}
			} catch (error) {
				console.error(`Error in guildMemberAdd event for guild ${member.guild.id}:`, error);
				// fallback to local db
				try {
					const db = readDb();
					const settings = db[member.guild.id];
					if (settings && settings.welcomeEnabled && settings.welcomeChannel) {
						const channel = member.guild.channels.cache.get(settings.welcomeChannel);
						if (channel) {
							try {
								const message = (settings.welcomeMessage || 'Welcome {user} to {server}!').replace('{user}', member.user.toString()).replace('{server}', member.guild.name);
								await channel.send(message);
							} catch (innerErr) { /* ignore */ }
						}
					}
					if (settings && settings.autorole && settings.autorole.enabled && settings.autorole.roleId) {
						const role = member.guild.roles.cache.get(settings.autorole.roleId);
						if (role) {
							try { await member.roles.add(role); } catch (innerErr) { /* ignore */ }
						}
					}
				} catch (inner) {
					// ignore fallback errors
				}
			}
	},
};