/**
 * server.ts
 * Web server for the scoreboard page.
 */

import { Database as Database3 } from 'sqlite3';
import { Database, open } from 'sqlite';
import express = require('express');
import 'dotenv/config';
import { ScoreboardMessageRow, ScoreboardUserRow } from './models';

const app = express();
app.use(express.static('public'));
app.set('view engine', 'pug');
const port = process.env.PORT;
let db: Database = null;

async function openDb() {
    return open({
        filename: 'discord/db.sqlite',
        driver: Database3
    });
}

app.get('/', async (req, res) => {
    const msg1 = await db.all<[ScoreboardMessageRow]>('SELECT * FROM messages ORDER BY reaction_1_count DESC LIMIT 5');
    const msg2 = await db.all<[ScoreboardMessageRow]>('SELECT * FROM messages ORDER BY reaction_2_count DESC LIMIT 5');
    const msg3 = await db.all<[ScoreboardMessageRow]>('SELECT * FROM messages ORDER BY reaction_3_count DESC LIMIT 5');
    const bestMsg = await db.all<[ScoreboardMessageRow]>('SELECT *, SUM(reaction_1_count)+SUM(reaction_2_count)+SUM(reaction_3_count) AS all_reacts FROM messages GROUP BY id ORDER BY all_reacts DESC LIMIT 5');

    const funniest = await db.all<[ScoreboardUserRow]>('SELECT * FROM users ORDER BY reaction_1_total DESC');
    const realest = await db.all<[ScoreboardUserRow]>('SELECT * FROM users ORDER BY reaction_2_total DESC');
    const cunniest = await db.all<[ScoreboardUserRow]>('SELECT * FROM users ORDER BY reaction_3_total DESC');

    res.render('index', { funniest, realest, cunniest, msg1, msg2, msg3, bestMsg });
});

app.listen(port, async () => {
    console.log('[web] Opening database...');
    db = await openDb();
    console.log('[web] Database ready.');
    console.log(`[web] Listening on port ${port}`);
});