/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

/*
 * Copyright (c) 2015, Joyent, Inc.
 */

/*
 * Test create/start/stop/delete/etc. work flows
 */

var assert = require('assert');
var f = require('util').format;

var vasync = require('vasync');

var h = require('./helpers');
var test = require('tape');

var common = require('../../lib/common');

var VM_ALIAS = 'node-triton-test-vm-1';
var VM_IMAGE = 'base-64@15.2.0';
var VM_PACKAGE = 't4-standard-128M';

// TODO clean this up
assert.equal(h.CONFIG.url, 'https://us-east-3b.api.joyent.com');
if (h.CONFIG.destructiveAllowed !== true) {
    console.error('skipping manage integration tests - destructive actions disabled');
    return;
}

/*
 * h.triton wrapper that:
 * - tests no error is present
 * - tests stdout is not empty
 * - tests stderr is empty
 *
 * In the event that any of the above is false, this function will NOT
 * fire the callback, which will result in the early terminate of these
 * tests as `t.end()` will never be called.
 */
function triton(t, args, cb) {
    t.comment(f('running: triton %s', args.join(' ')));
    h.triton(args, function (err, stdout, stderr) {
        t.error(err, 'no error running child process');
        t.equal(stderr, '', 'no stderr produced');
        t.notEqual(stdout, '', 'stdout produced');

        if (!err && stdout && !stderr)
            cb(stdout);
    });
}

// global variable to hold vm instance JSON
var instance;

// --- Tests

// create a test machine (blocking) and output JSON
test('triton create', function (t) {
    triton(t, ['create', '-wjn', VM_ALIAS, VM_IMAGE, VM_PACKAGE],
        function (stdout) {

        // parse JSON response
        var lines = stdout.trim().split('\n');
        t.equal(lines.length, 2, 'correct number of JSON lines');
        try {
            lines = lines.map(function (line) {
                return JSON.parse(line);
            });
        } catch (e) {
            t.fail('failed to parse JSON');
            t.end();
        }

        instance = lines[1];
        t.equal(lines[0].id, lines[1].id, 'correct UUID given');
        t.equal(lines[1].state, 'running', 'correct machine state');

        t.end();
    });
});

// test `triton instance -j` with the UUID, the alias, and the short ID
test('triton instance', function (t) {
    var uuid = instance.id;
    var shortId = common.uuidToShortId(uuid);
    vasync.parallel({
        funcs: [
            function (cb) {
                triton(t, ['instance', '-j', VM_ALIAS], function (stdout) {
                    cb(null, stdout);
                });
            },
            function (cb) {
                triton(t, ['instance', '-j', uuid], function (stdout) {
                    cb(null, stdout);
                });
            },
            function (cb) {
                triton(t, ['instance', '-j', shortId], function (stdout) {
                    cb(null, stdout);
                });
            },
        ],
    }, function (err, results) {
        if (h.ifErr(t, err, 'no error'))
            return t.end();

        var output;
        try {
            output = results.operations.map(function (op) {
                return JSON.parse(op.result);
            });
        } catch (e) {
            t.fail('failed to parse JSON');
            t.end();
        }

        output.forEach(function (res) {
            t.deepEqual(output[0], res, 'same data');
        });

        t.end();
    });
});

// remove test instance
test('triton delete', function (t) {
    triton(t, ['delete', '-w', instance.id], function (stdout) {
        t.end();
    });
});