const express = require('express');
const fs = require('fs');
const memcache = require('memcache-client');
const { join: pathJoin } = require('path');

// todo: these should not be hardcoded lol
const port = 3009;
const memcacheServer = "localhost:11211";
const allowedOrigins = [
    'edgii.net',
    'chat.edgii.net',
    'sockchat.edgii.net',
    'ajaxchat.edgii.net',
];

const app = express();
const isDebug = fs.existsSync(pathJoin(__dirname, '.debug'));
const cache = new memcache.MemcacheClient({ server: memcacheServer });

const handleMetadata = (res, req, url) => {
    //
};

app.use((req, res, next) => {
    res.set('X-Powered-By', 'Uiharu');

    const origin = req.get('origin');
    if(origin !== undefined) {
        const originObj = new URL(origin);
        if(!allowedOrigins.includes(originObj.host)) {
            res.status(403).end();
            return;
        }

        res.set('Access-Control-Allow-Origin', origin);
        res.set('Vary', 'Origin');
    }

    if(req.method === 'OPTIONS')
        res.set('Access-Control-Allow-Methods', 'OPTIONS, GET, POST');

    next();
});

app.use(express.static('public'));

app.get('/metadata', (req, res) => {
    res.status(501).send('Not Implemented');
});

app.post('/metadata', (req, res) => {
    res.status(501).send('Not Implemented');
});

app.get('/metadata/batch', (req, res) => {
    res.type('application/json')
       .send('{"took":0,"results":[]}')
       .end();
});

app.post('/metadata/batch', (req, res) => {
    res.type('application/json')
       .send('{"took":0,"results":[]}')
       .end();
});

app.get('/metadata/thumb/audio', (req, res) => {
    res.status(501).send('Not Implemented');
});

app.get('/metadata/thumb/video', (req, res) => {
    res.status(501).send('Not Implemented');
});

app.listen(port, () => {
    console.log(`Uiharu listening to port ${port}!`);
});