/*
 * This tests a flow for cloudron owner creating a selfhosted cloudron on ec2
 * Owner creates a cloudron, activates it, installs and app and deletes the cloudron eventually
 *
 */

'use strict';

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

require('colors');

process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';
const BOX_VERSION = process.env.BOX_VERSION;
const SELFHOST_DOMAIN = process.env.SELFHOST_DOMAIN;
const EC2_TYPE = 't2.small';
const EC2_SIZE = 30;
const EC2_REGION = 'eu-central-1';
const EC2_SSH_KEY = 'id_rsa_e2e_selfhost';
const EC2_SUBNET = 'subnet-801402e9';
const EC2_SECURITY_GROUP = 'sg-b9a473d1';
const BACKUP_KEY = 'somesecret';
const BACKUP_BUCKET = 'selfhost-test';
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 EC2 Cloudron creation', function () {
    this.timeout(0);

    var appStore = new AppStore('https://api.staging.cloudron.io');
    var ec2 = new AWS.EC2({ accessKeyId: AWS_ACCESS_KEY, secretAccessKey: AWS_ACCESS_SECRET, region: EC2_REGION });

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

    it('can query versions', function () {
        var res = request.get('https://s3.amazonaws.com/staging-cloudron-releases/versions.json').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 ' + SELFHOST_DOMAIN,
            '--type ' + EC2_TYPE,
            '--disk-size ' + EC2_SIZE,
            '--region ' + EC2_REGION,
            '--ssh-key ' + EC2_SSH_KEY,
            '--access-key-id ' + AWS_ACCESS_KEY,
            '--secret-access-key ' + AWS_ACCESS_SECRET,
            '--subnet ' + EC2_SUBNET,
            '--security-group ' + EC2_SECURITY_GROUP,
            '--backup-key ' + BACKUP_KEY,
            '--backup-bucket ' + BACKUP_BUCKET,
            '--release ' + toVersion
        ];

        var out = machine('create ec2 ' + 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: 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 () {
        // ec2 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(120);
    });

    it('can enable email', function () {
        cloudron.setEmailEnabled(true);
        sleep(20); // sometime for the mail container to come up
    });

    it('send mail to cloudron user', function (done) {
        mailer.sendMailToCloudronUser(owner.username + '@' + 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 update the box', function () {
        cloudron.checkForUpdates();

        var params = [
            SELFHOST_DOMAIN,
            '--yes',
            '--ssh-key ' + EC2_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 restore the box', function () {
        var params = [
            '--fqdn ' + SELFHOST_DOMAIN,
            '--type ' + EC2_TYPE,
            '--disk-size ' + EC2_SIZE,
            '--region ' + EC2_REGION,
            '--ssh-key ' + EC2_SSH_KEY,
            '--access-key-id ' + AWS_ACCESS_KEY,
            '--secret-access-key ' + AWS_ACCESS_SECRET,
            '--subnet ' + EC2_SUBNET,
            '--security-group ' + EC2_SECURITY_GROUP,
            '--backup-key ' + BACKUP_KEY,
            '--backup-bucket ' + BACKUP_BUCKET,
            '--backup ' + backupInfo.id,
        ];

        var out = machine('restore ec2 ' + 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 ' + SELFHOST_DOMAIN,
            '--ssh-key ' + EC2_SSH_KEY,
            '--access-key-id ' + AWS_ACCESS_KEY,
            '--secret-access-key ' + AWS_ACCESS_SECRET,
        ];

        var out = machine('migrate ec2 ' + 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 EC2 instances');

        var params = {
            InstanceIds: [ instanceId, restoreInstanceId, migrateInstanceId ]
        };

        ec2.terminateInstances(params, function (error) {
            if (error) console.log(error);
            done();
        });
    });
});