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

'use strict';

const BoxError = require('../boxerror.js'),
    common = require('./common.js'),
    expect = require('expect.js'),
    fs = require('node:fs'),
    paths = require('../paths.js'),
    safe = require('safetydance'),
    tasks = require('../tasks.js'),
    _ = require('../underscore.js');

describe('task', function () {
    const { setup, cleanup } = common;

    before(setup);
    after(cleanup);

    let taskId;

    const TASK = {
        type: 'tasktype',
        args: [ 1 ],
        percent: 0,
        message: 'Queued'
    };

    it('add succeeds', async function () {
        const id = await tasks.add(TASK.type, TASK.args);
        expect(id).to.be.ok();
        taskId = id;
    });

    it('get succeeds', async function () {
        const task = await tasks.get(taskId);
        expect(_.pick(task, Object.keys(TASK))).to.eql(TASK);
    });

    it('get random task fails', async function () {
        const task = await tasks.get('random');
        expect(task).to.be(null);
    });

    it('update succeeds', async function () {
        TASK.percent = 34;
        TASK.message = 'almost ther';
        await tasks.update(taskId, { percent: TASK.percent, message: TASK.message });
        const task = await tasks.get(taskId);
        expect(_.pick(task, Object.keys(TASK))).to.eql(TASK);
    });

    it('list succeeds - does not exist', async function () {
        const result = await tasks.list(1, 1, { type: 'randomtask' });
        expect(result.length).to.be(0);
    });

    it('list succeeds - by type', async function () {
        const result = await tasks.list(1, 1, { type: TASK.type });
        expect(result.length).to.be(1);
        expect(_.pick(result[0], Object.keys(TASK))).to.eql(TASK);
    });

    it('list succeeds - all', async function () {
        const result = await tasks.list(1, 1, { type: null });
        expect(result.length).to.be(1);
        expect(_.pick(result[0], Object.keys(TASK))).to.eql(TASK);
    });

    it('del succeeds', async function () {
        await tasks._del(taskId);
        const task = await tasks.get(taskId);
        expect(task).to.be(null);
    });

    it('del missing task fails', async function () {
        const [error] = await safe(tasks._del('1235'));
        expect(error.reason).to.be(BoxError.NOT_FOUND);
    });

    it('can run valid task - success', async function () {
        const taskId = await tasks.add(tasks._TASK_IDENTITY, [ 'ping' ]);

        const [error, result] = await safe(tasks.startTask(taskId, {}));
        if (error) throw error;
        expect(result).to.equal('ping');
    });

    it('can run valid task - error', async function () {
        const taskId = await tasks.add(tasks._TASK_ERROR, [ 'ping' ]);

        const [error, result] = await safe(tasks.startTask(taskId, {}));
        if (!error) throw new Error('expecting task to fail');
        expect(error.message).to.be('Task crashed. Failed for arg: ping');
        expect(result).to.not.be.ok();
    });

    it('can get logs of crash', async function () {
        const taskId = await tasks.add(tasks._TASK_CRASH, [ 'ping' ]);

        const [error, result] = await safe(tasks.startTask(taskId, {}));
        if (!error) throw new Error('expecting task to crash');
        expect(error.message).to.contain(`Task ${taskId} crashed`);
        expect(result).to.not.be.ok();

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

    it('can stop task', async function () {
        const taskId = await tasks.add(tasks._TASK_SLEEP, [ 10000 ]);

        setTimeout(async function () {
            await tasks.stopTask(taskId);
        }, 2000);

        const [error, result] = await safe(tasks.startTask(taskId, {}));
        if (!error) throw new Error('expecting task to stop');
        expect(error.message).to.contain('stopped');
        expect(error.code).to.be(tasks.ESTOPPED);
        expect(result).to.not.be.ok();
    });

    it('task timesout', async function () {
        const taskId = await tasks.add(tasks._TASK_SLEEP, [ 10000 ]);

        const [error, result] = await safe(tasks.startTask(taskId, { timeout: 2000 }));
        if (!error) throw new Error('expecting task to timeout');
        expect(error.code).to.be(tasks.ETIMEOUT);
        expect(error.message).to.contain('timed out');
        expect(result).to.not.be.ok();
    });
});