/* jslint node:true */
/* global it:false */
/* global before:false */
/* global after:false */
/* global describe:false */

'use strict';

var async = require('async'),
    database = require('../database.js'),
    expect = require('expect.js'),
    fs = require('fs'),
    paths = require('../paths.js'),
    tasks = require('../tasks.js');

function setup(done) {
    async.series([
        database.initialize,
        database._clear
    ], done);
}

function cleanup(done) {
    async.series([
        database._clear,
        database.uninitialize
    ], done);
}

describe('task', function () {
    before(setup);
    after(cleanup);

    it('can run valid task - success', function (done) {
        tasks.add(tasks._TASK_IDENTITY, [ 'ping' ], function (error, taskId) {
            if (error) return done(error);

            tasks.startTask(taskId, {}, function (error, result) {
                if (error) return done(error);
                expect(result).to.equal('ping');
                expect(taskId).to.be.ok();
                done();
            });
        });
    });

    it('can run valid task - error', function (done) {
        tasks.add(tasks._TASK_ERROR, [ 'ping' ], function (error, taskId) {
            if (error) return done(error);

            tasks.startTask(taskId, {}, function (error, result) {
                expect(error).to.be.ok();
                expect(error.message).to.be('Failed for arg: ping');
                expect(result).to.be(null);
                expect(taskId).to.be.ok();
                done();
            });
        });
    });

    it('can get logs of crash', function (done) {
        tasks.add(tasks._TASK_CRASH, [ 'ping' ], function (error, taskId) {
            if (error) return done(error);

            tasks.startTask(taskId, {}, function (error, result) {
                expect(error).to.be.ok();

                expect(error.message).to.contain(`Task ${taskId} crashed`);
                expect(result).to.be(null);
                expect(taskId).to.be.ok();

                let logs = fs.readFileSync(`${paths.TASKS_LOG_DIR}/${taskId}.log`, 'utf8');
                expect(logs).to.contain('Crashing for arg: ping');
                done();
            });
        });
    });

    it('can stop task', function (done) {
        tasks.add(tasks._TASK_SLEEP, [ 10000 ], function (error, taskId) {
            if (error) return done(error);

            tasks.startTask(taskId, {}, function (error, result) {
                expect(error).to.be.ok();
                expect(error.message).to.contain('stopped');
                expect(result).to.be(null);
                expect(taskId).to.be.ok();
                done();
            });

            setTimeout(() => {
                tasks.stopTask(taskId, () => {});
            }, 100);
        });
    });
});