import './setup.ts';

import { isGrantedForUser } from '../src/helpers.ts';

import dbConnection from './db.ts';
import mailer from './mailer.ts';

const shouldNotify = (frequency) => {
    if (frequency === 0) {
        return false;
    }

    if (frequency === 7) {
        return new Date().getDay() === 6; // Saturdays
    }

    return true;
};

async function notify() {
    const db = await dbConnection();

    const awaitingModeration = [
        ...await db.all('SELECT \'nouns\' as type, locale, count(*) as c FROM nouns WHERE approved = 0 AND deleted=0 GROUP BY locale'),
        ...await db.all('SELECT \'inclusive\' as type, locale, count(*) as c FROM inclusive WHERE approved = 0 AND deleted=0 GROUP BY locale'),
        ...await db.all('SELECT \'terms\' as type, locale, count(*) as c FROM terms WHERE approved = 0 AND deleted=0 GROUP BY locale'),
        ...await db.all('SELECT \'sources\' as type, locale, count(*) as c FROM sources WHERE approved = 0 AND deleted=0 GROUP BY locale'),
        ...await db.all('SELECT \'names\' as type, locale, count(*) as c FROM names WHERE approved = 0 AND deleted=0 GROUP BY locale'),
        ...await db.all('SELECT \'translations\' as type, locale, count(*) as c FROM translations WHERE status = 0 OR status = 1 GROUP BY locale'),
        ...await db.all('SELECT \'reports\' as type, null as locale, count(*) as c FROM reports WHERE isHandled = 0'),
        ...await db.all('SELECT \'ban-proposals\' as type, null as locale, (SELECT count(*) FROM ban_proposals p LEFT JOIN users u ON p.userId = u.id WHERE u.bannedBy IS NULL) as c'),
    ].filter((r) => r.c > 0);
    if (!awaitingModeration.length) {
        console.log('No entries awaiting moderation');
        return;
    }

    const admins = await db.all('SELECT email, roles, adminNotifications FROM users WHERE roles != \'\'');

    const awaitingModerationGrouped = {};
    let count = 0;
    for (const m of awaitingModeration) {
        for (const admin of admins) {
            if (isGrantedForUser(admin, m.locale, m.type) && shouldNotify(admin.adminNotifications)) {
                if (awaitingModerationGrouped[admin.email] === undefined) {
                    awaitingModerationGrouped[admin.email] = {};
                }
                awaitingModerationGrouped[admin.email][`${m.locale || '*'}-${m.type}`] = m.c;
            }
        }
        count += m.c;
    }

    console.log('Entries awaiting moderation: ', count);

    for (const email in awaitingModerationGrouped) {
        if (!awaitingModerationGrouped.hasOwnProperty(email)) {
            continue;
        }
        const stats = awaitingModerationGrouped[email];
        console.log('Sending email:', email, stats);

        mailer(email, 'notify', { stats });
    }

    await db.close();
}

notify();