var express = require('express');
var router = express.Router();
var docker = require('../bin/dockerode');

const registry = 'registry.cliffbreak.de/';

router.get('/:id/:image', (req, res, next) => {
    if (req.params.image = ! null) {
        await pullImage(req.params.image);
        restartContainer().then(data => {
            res.send(data);
        });

    }
    else {
        restartContainer(req.params.id).then(data => {
            res.send(data);
        });
    }
});


function restartContainer(containername) {
    return new Promise((resolve, reject) => {
        const container = docker.getContainer(containername);
        container.restart((err, data) => {
            resolve({ err, data });
        });
    })
}

function pullImage(image) {
    return new Promise((resolve, reject) => {
        docker.pull(registry + image, (err, stream) => {
            resolve({ err, stream });
        });
    })
}


module.exports = router;