import { Events, GuildMember, TextChannel, EmbedBuilder } from 'discord.js';

async function sendLog(client: any, guildId: string, event: string, embed: EmbedBuilder) {
    const DB = client.DB;
    const settings: any = DB.get('SELECT log_events FROM guild_settings WHERE guild_id = ?', guildId);

    if (!settings?.log_events) return;
    const activeEvents = settings.log_events.split(',').filter(Boolean);
    if (!activeEvents.includes(event)) return;

    const logSettings: any = DB.get('SELECT log_channel FROM guild_settings WHERE guild_id = ?', guildId);
    if (!logSettings?.log_channel) return;

    const channel = client.guilds.cache.get(guildId)?.channels.cache.get(logSettings.log_channel);
    if (!channel || !channel.isTextBased()) return;

    try {
        await (channel as any).send({ embeds: [embed] });
    } catch (error) {
        console.error(`[LOG] Error sending log (${event}):`, error);
    }
}

export default {
    name: Events.GuildMemberRemove,
    async execute(member: GuildMember) {
        const DB = (member.client as any).DB;
        const guildId = member.guild.id;

        // Log the leave event
        const embed = new EmbedBuilder()
            .setTitle('👋 User hat Server verlassen')
            .setColor(0x95a5a6)
            .addFields(
                { name: 'User', value: `${member.user.tag} (<@${member.id}>)`, inline: true },
                { name: 'Beitritt', value: member.joinedTimestamp ? `<t:${Math.floor(member.joinedTimestamp / 1000)}:R>` : 'Unbekannt', inline: true }
            )
            .setTimestamp();

        await sendLog(member.client, guildId, 'leaves', embed);

        // Send goodbye message if configured
        const settings: any = DB.get('SELECT * FROM guild_settings WHERE guild_id = ?', guildId);

        const channelId = settings?.welcome_channel || member.guild.systemChannelId;
        if (!channelId || !settings?.goodbye_message) {
            return;
        }

        const channel = member.guild.channels.cache.get(channelId);
        if (!channel || !channel.isTextBased()) {
            return;
        }

        const message = settings.goodbye_message
            .replace(/{user}/g, `<@${member.id}>`)
            .replace(/{username}/g, member.user.username)
            .replace(/{server}/g, member.guild.name)
            .replace(/{membercount}/g, member.guild.memberCount.toString());

        try {
            await (channel as TextChannel).send(message);
        } catch (error) {
            console.error('[WELCOME] Error sending goodbye message:', error);
        }
    },
};