/*
 *
 * This tests a flow for cloudron owner creating a selfhosted cloudron on digitalocean
 * Owner creates a cloudron, activates it, installs and app and deletes the cloudron eventually
 * We use a us-east-1 (US standard) backup bucket here
 *
 */

'use strict';

var AppStore = require('../appstore.js'),
    assert = require('assert'),
    async = require('async'),
    child_process = require('child_process'),
    Cloudron = require('../cloudron.js'),
    common = require('../common.js'),
    mailer = require('../mailer.js'),
    rimraf = require('rimraf'),
    semver = require('semver'),
    sleep = require('../shell.js').sleep,
    superagent = require('superagent'),
    request = require('superagent-sync'),
    util = require('util');

require('colors');

process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';
const BOX_VERSION = process.env.BOX_VERSION;
const DO_SELFHOST_DOMAIN = process.env.DO_SELFHOST_DOMAIN;
const SSH_KEY = 'id_rsa_e2e_selfhost';
const DO_TYPE = '1gb';
const DO_REGION = 'nyc3';
const DO_TOKEN = process.env.DIGITAL_OCEAN_TOKEN_STAGING;
const BACKUP_KEY = 'somesecret';
const AWS_BACKUP_BUCKET = 'selfhost-test-digitalocean';
const AWS_BACKUP_PREFIX = DO_SELFHOST_DOMAIN;
const AWS_ACCESS_KEY = process.env.AWS_STAGING_ACCESS_KEY;
const AWS_ACCESS_SECRET = process.env.AWS_STAGING_SECRET_KEY;

function machine(args, options) {
    // https://github.com/nodejs/node-v0.x-archive/issues/9265
    options = options || { };
    args = util.isArray(args) ? args : args.match(/[^\s"]+|"([^"]+)"/g);
    args = args.map(function (e) { return e[0] === '"' ? e.slice(1, -1) : e; }); // remove the quotes

    console.log('cloudron machine ' + args.join(' '));

    try {
        var cp = child_process.spawnSync('cloudron', ['machine'].concat(args), { stdio: [ options.stdin || 'pipe', options.stdout || 'pipe', 'pipe' ], encoding: options.encoding || 'utf8' });
        return cp;
    } catch (e) {
        console.error(e);
        throw e;
    }
}

describe('Selfhost DigitalOcean with S3 backend', function () {
    this.timeout(0);

    var appStore = new AppStore();

    var owner = common.getOwner();
    var cloudron, appId, backupInfo, instanceId, restoreInstanceId, migrateInstanceId;
    var fromVersion, toVersion, nextVersion;

    it('can query versions', function () {
        var res = request.get(process.env.BOX_VERSIONS_URL).end();
        common.verifyResponse2xx(res);
        var boxVersions = Object.keys(common.stripUnreachable(res.body)).sort(semver.rcompare);
        fromVersion = boxVersions[2]; // we released a new version in before.js
        toVersion = boxVersions[1];
        assert.strictEqual(toVersion, BOX_VERSION);
        nextVersion = boxVersions[0];

        console.log('Will test update from %s to %s and then %s', fromVersion.yellow, toVersion.yellow, nextVersion.yellow);
    });

    it('can create a cloudron', function () {
        var params = [
            '--fqdn ' + DO_SELFHOST_DOMAIN,
            '--type ' + DO_TYPE,
            '--token ' + DO_TOKEN,
            '--region ' + DO_REGION,
            '--ssh-key ' + SSH_KEY,
            '--backup-key ' + BACKUP_KEY,
            '--release ' + toVersion
        ];

        var out = machine('create digitalocean ' + params.join(' '));
        console.log(out.stdout, out.stderr);

        if (out.stdout.indexOf('You can now setup your Cloudron at') === -1) {
            assert(false, 'Creation failed');
        }

        // Wohooo strings!
        instanceId = out.stdout.split('\n').filter(function (l) { return l.indexOf(' ID: ') !== -1; })[0].split(':')[1].trim();

        console.log('New instance created with ID', instanceId);

        cloudron = new Cloudron({
            domain: DO_SELFHOST_DOMAIN,
            setupToken: null,
            version: toVersion,
            ip: null
        });
    });

    it('can activate the box', function () {
        cloudron.activate(owner);
    });

    it('can login to the box', function () {
        var token = cloudron.getOauthToken(owner);
        cloudron.setCredentials(owner.password, token);
    });

    it('can take a breather', function () {
        // do can be really slow to come up. the addon containers take their own sweet time (they are "async" with the box startup)
        // we end up sending email even before the mail container is ready
        sleep(30);
    });

    it('can enable email', function () {
        cloudron.setEmailEnabled(true);
    });

    it('send mail to cloudron user', function (done) {
        mailer.sendMailToCloudronUser(owner.username + '@' + DO_SELFHOST_DOMAIN, done);
    });

    it('did receive mail', function (done) {
        cloudron.checkMail(owner, done);
    });

    var location = 'test' + (Math.random() * 10000).toFixed();
    it('can install app', function () {
        var manifest = appStore.getManifest(common.TESTAPP_ID, common.TESTAPP_VERSION);
        appId = cloudron.installApp(location, manifest);
    });

    it('can populate the addons', function () {
        cloudron.populateAddons(cloudron.appFqdn(location));
    });

    it('can check the addons', function () {
        cloudron.checkAddons(cloudron.appFqdn(location), owner);
    });

    it('can set S3 backup config', function () {
        var backupConfig = {
            accessKeyId: AWS_ACCESS_KEY,
            secretAccessKey: AWS_ACCESS_SECRET,
            bucket: AWS_BACKUP_BUCKET,
            prefix: AWS_BACKUP_PREFIX
        };

        cloudron.setBackupConfig(backupConfig);
    });

    it('can update the box', function () {
        cloudron.checkForUpdates();
        sleep(60); // give it a minute to get update info

        var params = [
            DO_SELFHOST_DOMAIN,
            '--yes',
            '--ssh-key ' + SSH_KEY,
            '--username ' + owner.username,
            '--password ' + owner.password
        ];

        var out = machine('update ' + params.join(' '));
        console.log(out.stdout, out.stderr);

        if (out.stdout.indexOf('You can now use your Cloudron at') === -1) {
            assert(false, 'Update failed');
        }
    });

    it('wait for app to be ready', function () {
        cloudron.waitForApp(appId);
    });

    it('can configure app', function () {
        location = location + 'x';
        cloudron.configureApp(appId, location);
    });

    it('can check the addons', function () {
        cloudron.checkAddons(cloudron.appFqdn(location), owner);
    });

    it('can reboot the cloudron', function () {
        cloudron.reboot();
    });

    it('runs the app', function () {
        cloudron.waitForApp(appId);
    });

    it('can check the addons', function () {
        cloudron.checkAddons(cloudron.appFqdn(location), owner);
    });

    it('can check mail', function (done) {
        cloudron.checkMail(owner, done);
    });

    it('can backup the box', function () {
        backupInfo = cloudron.backup();
        assert.strictEqual(backupInfo.dependsOn.length, 1);
    });

    it('can list backups', function () {
        var out = machine('backup list ' + DO_SELFHOST_DOMAIN);
        console.log(out.stdout, out.stderr);

        var lastBackupId = out.stdout.split('\n').filter(function (l) { return l.indexOf('backup_') === 0; }).map(function (l) { return l.split(' ')[0].trim(); }).pop();

        console.log('Last backup id:', lastBackupId);

        assert.equal(lastBackupId, backupInfo.id);
    });

    it('can restore the box', function () {
        var params = [
            '--fqdn ' + DO_SELFHOST_DOMAIN,
            // THOSE SHOULD BE STASHED IN THE CONFIG
            // '--type ' + DO_TYPE,
            // '--token ' + DO_TOKEN,
            // '--region ' + DO_REGION,
            // '--ssh-key ' + SSH_KEY,
            // '--backup-key ' + BACKUP_KEY,
            '--backup ' + backupInfo.id
        ];

        var out = machine('restore digitalocean ' + params.join(' '));
        console.log(out.stdout, out.stderr);

        if (out.stdout.indexOf('You can now use your Cloudron at') === -1) {
            assert(false, 'Restore failed');
        }

        restoreInstanceId = out.stdout.split('\n').filter(function (l) { return l.indexOf(' ID: ') !== -1; })[0].split(':')[1].trim();

        console.log('New instance created with ID', restoreInstanceId);
    });

    it('runs the app', function () {
        cloudron.waitForApp(appId);
    });

    // Only works so far with upgrades, as the app needs to be restarted for the test to suceed
    xit('can check the addons', function () {
        cloudron.checkAddons(cloudron.appFqdn(location), owner);
    });

    it('can migrate cloudron', function () {
        var params = [
            '--fqdn ' + DO_SELFHOST_DOMAIN,
            // THOSE SHOULD BE STASHED IN THE CONFIG
            // '--token ' + DO_TOKEN,
            // '--ssh-key ' + SSH_KEY
        ];

        var out = machine('migrate digitalocean ' + params.join(' '));
        console.log(out.stdout, out.stderr);

        if (out.stdout.indexOf('You can now use your Cloudron at') === -1) {
            assert(false, 'Migrate failed');
        }

        migrateInstanceId = out.stdout.split('\n').filter(function (l) { return l.indexOf(' ID: ') !== -1; })[0].split(':')[1].trim();

        console.log('New instance created with ID', restoreInstanceId);
    });

    it('runs the app', function () {
        cloudron.waitForApp(appId);
    });

    it('can uninstall app', function () {
        cloudron.uninstallApp(appId);
    });

    it('can delete the cloudron', function (done) {
        console.log('Cleanup DO instances', instanceId, restoreInstanceId, migrateInstanceId);

        // we ignore errors here
        function deleteDroplet(id, callback) {
            if (!id) return callback();

            superagent.del('https://api.digitalocean.com/v2/droplets/' + id).set('Authorization', 'Bearer ' + DO_TOKEN).end(function (error, result) {
                if (error) console.error(error.message);
                if (result.statusCode !== 204) console.error('Failed to cleanup old droplet. %s %j', result.statusCode, result.body);

                callback();
            });
        }

        async.each([ instanceId, restoreInstanceId, migrateInstanceId ], deleteDroplet, done);
    });
});