const { Observer } = require('../../../interfaces/');
const { Util } = require('../../../../util');

const CONSTANTS = {};

class UtilityHook extends Observer {

    constructor(client) {

        super(client, {
            name: 'utility',
            priority: 3,
            disabled: false
        });

        this.hooks = [
            ['guildMemberAdd', this.welcome.bind(this)],
            ['guildMemberAdd', this.autorole.bind(this)],
            ['guildMemberAdd', this.automute.bind(this)],
            ['guildMemberAdd', this.stickyRole.bind(this)],
            ['guildMemberRemove', this.storeRoles.bind(this)],
            ['inviteCreate', this.inviteCreate.bind(this)],
            ['inviteDelete', this.inviteDelete.bind(this)]
        ];

    }

    async storeRoles(member) {

        const { guild } = member;
        const settings = await guild.settings();
        const setting = settings.stickyrole;
        if (!setting.roles.length || guild.premium < 1) return;

        const { roles } = member;
        const storeThese = roles.cache.filter((role) => setting.roles.includes(role.id) && !role.equals(guild.roles.everyone)).map((role) => role.id);
        if (!storeThese.length) return;

        await this.client.storageManager.mongodb.role_cache.updateOne({ member: member.id, guild: guild.id }, { roles: storeThese, timestamp: Math.floor(Date.now()/1000) });

    }

    async automute(member) {

        const { guild } = member;
        const settings = await guild.settings();
        const setting = settings.mute;
        if (!guild.me.hasPermission('MANAGE_ROLES')) return;

        const infraction = await this.client.storageManager.mongodb.infractions.findOne({
            duration: { $gt: 0 },
            guild: guild.id,
            target: member.id,
            type: 'MUTE',
            callbacked: false
        });

        if (!infraction || infraction.resolved) return;

        if (infraction.data.muteType === 0) await member.roles.add(setting.role, 'automute upon rejoin, type 0');
        else if (infraction.data.muteType === 1) {

            await Util.wait(5 * 1000); //wait 5 seconds in case other bots add roles that would break the mute
            const roles = member.roles.cache;
            const managed = roles.find((r) => r.managed);
            const remove = roles.filter((r) => !r.managed); //Have to do this bs for managed roles -.-

            if (managed) {
                await member.roles.add(setting.role, 'automute upon rejoin, type 1');
                await member.roles.remove(remove, 'removing excess roles for type 1 mute');
            } else await member.roles.set(setting.role, 'automute upon join, type 1');

        } else if (infraction.data.muteType === 2) {

            await Util.wait(5 * 1000); //wait 5 seconds in case other bots add roles that would break the mute

            const roles = member.roles.cache;
            const remove = roles.filter((r) => !r.managed); //Have to do this bs for managed roles -.-

            await member.roles.remove(remove, 'automute upon join, type 1');

        }
        
    }

    async stickyRole(member) {

        const { guild } = member;
        const settings = await guild.settings();
        const setting = settings.stickyrole;
        if (!setting.roles.length || guild.premium < 1) return;
        if (!guild.me.hasPermission('MANAGE_ROLES')) return;
        
        const data = await this.client.storageManager.mongodb.role_cache.findOne({ guild: guild.id, member: member.id });
        if (!data) return;

        await member.roles.add(data.roles, 'Adding stickyroles');

    }

    async autorole(member) {

        const { guild } = member;
        const settings = await guild.settings();
        const setting = settings.autorole;
        if (!setting.enabled) return;
        if (!guild.me.hasPermission('MANAGE_ROLES')) return;

        const _roles = await guild.resolveRoles(setting.roles);
        const roles = _roles.map((r) => r.id);
        await member.roles.add(roles, 'Adding autoroles').catch(this.client.logger.error);

    }

    async welcome(member) {

        const { guild, user } = member;
        const settings = await guild.settings();
        const setting = settings.welcomer;
        if (!setting.enabled) return;
        
        const channel = await user.createDM();
        const message = this._replaceTags(setting.message, member);
        await channel.send(message).catch();

    }

    _replaceTags(text, member) {
        const { user, guild } = member;
        return text
            .replace(/\{mention\}/gu, `<@${member.id}>`)
            .replace(/\{tag\}/gu, Util.escapeMarkdown(user.tag))
            .replace(/\{user\}/gu, Util.escapeMarkdown(user.username))
            .replace(/\{serversize\}/gu, guild.memberCount)
            .replace(/\{servername\}/gu, guild.name)
            .replace(/\{accage\}/gu, this.client.resolver.timeAgo(Date.now()/1000 - user.createdTimestamp/1000)) //.replace(/a/, '1')
            .replace(/\{id\}/gu, user.id)
            .trim();
    }

    async inviteCreate(invite) {

        const { guild } = invite;
        if (!guild) return;
        if (!guild.me.hasPermission('MANAGE_GUILD')) return;
        if (!guild.invites) guild.invites = await guild.fetchInvites();
        guild.invites.set(invite.code, invite);

    }

    async inviteDelete(invite) {

        const { guild } = invite;
        if (!guild) return;
        if (!guild.me.hasPermission('MANAGE_GUILD')) return;
        if (!guild.invites) guild.invites = await guild.fetchInvites();
        guild.invites.delete(invite.code);

    }

}

module.exports = UtilityHook;