<?php

namespace DavidBadura\Taskwarrior\Test;

use DavidBadura\Taskwarrior\Recurring;
use DavidBadura\Taskwarrior\Task;
use DavidBadura\Taskwarrior\TaskManager;
use DavidBadura\Taskwarrior\Taskwarrior;
use Symfony\Component\Filesystem\Filesystem;

/**
 * @author David Badura <badura@simplethings.de>
 */
class TaskManagerTest extends \PHPUnit_Framework_TestCase
{
    /**
     * @var Taskwarrior
     */
    protected $taskwarrior;

    /**
     * @var TaskManager
     */
    protected $taskManager;

    /**
     * @var string
     */
    protected $taskDir;

    public function setUp()
    {
        $this->taskDir = __DIR__;

        $fs = new Filesystem();
        $fs->remove($this->taskDir . '/.taskrc');
        $fs->remove($this->taskDir . '/.task');

        $bin = 'task';

        if (file_exists(__DIR__ . '/../task')) {
            $bin = realpath(__DIR__ . '/../task');
        }

        $this->taskwarrior = new Taskwarrior($this->taskDir . '/.taskrc', $this->taskDir . '/.task', [], $bin);
        $this->taskManager = new TaskManager($this->taskwarrior);
        $this->taskwarrior->version(); // to initialise
    }

    public function tearDown()
    {
        $fs = new Filesystem();
        $fs->remove($this->taskDir . '/.taskrc');
        $fs->remove($this->taskDir . '/.task');
    }

    public function testEmpty()
    {
        $tasks = $this->taskManager->filterPending();
        $this->assertEmpty($tasks);
    }

    public function testSaveTask()
    {
        $task = new Task();
        $task->setDescription('foo');

        $this->taskManager->save($task);
        $this->taskManager->clear();

        $this->assertNotEmpty($task->getUuid());

        $result = $this->taskManager->find($task->getUuid());

        $this->assertEquals($task, $result);
    }

    public function provideDescriptions()
    {
        return array(
            array('hier http://google.de'),
            array("test ' foo"),
            array("test (foo) bar"),
            array("foo-bar"),
            array("test +bar")
        );
    }

    /**
     * @dataProvider provideDescriptions
     */
    public function testDescription($description)
    {
        $task = new Task();
        $task->setDescription($description);

        $this->taskManager->save($task);
        $this->taskManager->clear();

        $task = $this->taskManager->find($task->getUuid());

        $this->assertEquals($description, $task->getDescription());

        $this->taskManager->save($task);
        $this->taskManager->clear();

        $task = $this->taskManager->find($task->getUuid());

        $this->assertEquals($description, $task->getDescription());
    }

    public function testSaveTaskWithoutDescription()
    {
        $this->setExpectedException('DavidBadura\Taskwarrior\Exception\TaskwarriorException');

        $task = new Task();

        $this->taskManager->save($task);
    }

    public function testFindFromCache()
    {
        $task = new Task();
        $task->setDescription('foo');

        $this->taskManager->save($task);

        $result = $this->taskManager->find($task->getUuid());

        $this->assertSame($task, $result);
    }

    public function testFilterFromCache()
    {
        $task = new Task();
        $task->setDescription('foo');

        $this->taskManager->save($task);

        $result = $this->taskManager->filter($task->getUuid());

        $this->assertSame($task, $result[0]);
    }

    public function testDontFind()
    {
        $this->setExpectedException('DavidBadura\Taskwarrior\Exception\TaskwarriorException',
            "task not found");

        $task = $this->taskManager->find('56464asd46s4adas54da6');
    }

    public function testDoubleSave()
    {
        $task = new Task();
        $task->setDescription('foo');

        $this->taskManager->save($task);

        $this->assertNotEmpty($task->getUuid());
        $uuid = $task->getUuid();

        $this->taskManager->save($task);

        $this->assertEquals($uuid, $task->getUuid());
        $this->assertCount(1, $this->taskManager->filterPending());

        $this->taskManager->clear();

        $this->taskManager->save($task);

        $this->assertEquals($uuid, $task->getUuid());
        $this->assertCount(1, $this->taskManager->filterPending());
    }

    public function testClone()
    {
        $task = new Task();
        $task->setDescription('foo');

        $this->taskManager->save($task);
        $this->assertCount(1, $this->taskManager->filterPending());

        $task2 = clone $task;

        $this->taskManager->save($task2);
        $this->assertCount(2, $this->taskManager->filterPending());

        $this->taskManager->done($task);
        $this->isTrue($task->isCompleted());

        $task3 = clone $task;

        $this->isTrue($task3->isPending());
        $this->taskManager->save($task3);

        $this->isTrue($task->isCompleted());
        $this->isTrue($task3->isPending());
    }


    public function testFilterAll()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $task2 = new Task();
        $task2->setDescription('foo2');

        $this->taskManager->save($task1);
        $this->taskManager->save($task2);

        $result = $this->taskManager->filterPending();

        $this->assertInstanceOf('Doctrine\Common\Collections\ArrayCollection', $result);
        $this->assertCount(2, $result);
    }

    public function testMultiFilter()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $task2 = new Task();
        $task2->setDescription('foo2');
        $task2->setPriority(Task::PRIORITY_HIGH);
        $task2->setProject('home');
        $task2->addTag('now');

        $this->taskManager->save($task1);
        $this->taskManager->save($task2);

        $this->assertCount(1, $this->taskManager->filterPending('project:home prio:H +now'));
    }

    public function testModified()
    {
        if (version_compare($this->taskwarrior->version(), '2.2.0') < 0) {
            $this->markTestSkipped(sprintf(
                'taskwarrior version %s dont support modified attr',
                $this->taskwarrior->version()
            ));
        }

        $task1 = new Task();
        $task1->setDescription('foo1');

        $this->taskManager->save($task1);

        $this->assertInstanceOf('DateTime', $task1->getEntry());
        $this->assertInstanceOf('DateTime', $task1->getModified());

        $mod = $task1->getModified();
        sleep(2);

        $task1->setDescription('bar2');

        $this->taskManager->save($task1);

        $this->assertInstanceOf('DateTime', $task1->getEntry());
        $this->assertInstanceOf('DateTime', $task1->getModified());

        $this->assertNotEquals($mod, $task1->getModified());
    }

    public function testEnd()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $this->taskManager->save($task1);

        $this->assertInstanceOf('DateTime', $task1->getEntry());
        $this->assertNull($task1->getEnd());

        $task1->setDescription('bar2');

        $this->taskManager->save($task1);

        $this->assertInstanceOf('DateTime', $task1->getEntry());
        $this->assertNull($task1->getEnd());

        $this->taskManager->done($task1);

        $this->assertInstanceOf('DateTime', $task1->getEntry());
        $this->assertInstanceOf('DateTime', $task1->getEnd());
    }

    public function testStart()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $this->taskManager->save($task1);

        $this->assertNull($task1->getStart());

        $this->taskManager->start($task1);
        $this->taskManager->save($task1);

        $this->assertInstanceOf('DateTime', $task1->getStart());

        $this->taskManager->stop($task1);
        $this->taskManager->save($task1);

        $this->assertNull($task1->getStart());
    }

    public function testPending()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $this->taskManager->save($task1);

        $this->assertEquals(Task::STATUS_PENDING, $task1->getStatus());
        $this->assertTrue($task1->isPending());

        $this->taskManager->clear();
        $result = $this->taskManager->find($task1->getUuid());

        $this->assertEquals(Task::STATUS_PENDING, $result->getStatus());
        $this->assertTrue($result->isPending());

        $this->assertCount(1, $this->taskManager->filterPending());
    }

    public function testDelete()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $this->assertCount(0, $this->taskManager->filterPending());

        $this->taskManager->save($task1);
        $this->assertCount(1, $this->taskManager->filter());
        $this->assertCount(1, $this->taskManager->filterPending());
        $this->assertFalse($task1->isDeleted());
        $this->assertEquals(Task::STATUS_PENDING, $task1->getStatus());

        $this->taskManager->delete($task1);
        $this->assertCount(1, $this->taskManager->filter());
        $this->assertCount(0, $this->taskManager->filterPending());
        $this->assertTrue($task1->isDeleted());
        $this->assertEquals(Task::STATUS_DELETED, $task1->getStatus());
    }

    public function testCompleted()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $this->assertCount(0, $this->taskManager->filterPending());

        $this->taskManager->save($task1);
        $this->assertCount(1, $this->taskManager->filter());
        $this->assertCount(1, $this->taskManager->filterPending());
        $this->assertFalse($task1->isCompleted());
        $this->assertEquals(Task::STATUS_PENDING, $task1->getStatus());

        $this->taskManager->done($task1);
        $this->assertCount(1, $this->taskManager->filter());
        $this->assertCount(0, $this->taskManager->filterPending());
        $this->assertTrue($task1->isCompleted());
        $this->assertEquals(Task::STATUS_COMPLETED, $task1->getStatus());
    }

    public function testModifyDescription()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $this->taskManager->save($task1);

        $this->assertEquals('foo1', $task1->getDescription());

        $task1->setDescription('bar1');
        $this->taskManager->save($task1);

        $this->taskManager->clear();

        $result = $this->taskManager->find($task1->getUuid());

        $this->assertEquals('bar1', $result->getDescription());
    }

    public function testDue()
    {
        $date = $this->createDateTime('1989-01-08 11:12:13');

        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setDue($date);

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task2 = $this->taskManager->find($task1->getUuid());
        $this->assertEquals($date, $task2->getDue());

        $newDate = $this->createDateTime('2002-02-20 11:12:13');

        $task2->setDue($newDate);

        $this->taskManager->save($task2);
        $this->taskManager->clear();

        $task3 = $this->taskManager->find($task1->getUuid());
        $this->assertEquals($newDate, $task3->getDue());

        $task2->setDue(null);

        $this->taskManager->save($task2);
        $this->taskManager->clear();

        $task3 = $this->taskManager->find($task1->getUuid());
        $this->assertNull($task3->getDue());
    }

    public function testUrgency()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setDue($this->createDateTime('1989-01-08 11:12:13'));

        $this->taskManager->save($task1);

        $this->assertEquals(12, $task1->getUrgency());

        $task1->setDue(null);

        $this->taskManager->save($task1);

        $this->assertEquals(0, $task1->getUrgency());
    }

    public function testProject()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setProject('home');

        $task2 = new Task();
        $task2->setDescription('foo2');
        $task2->setProject('office');

        $this->taskManager->save($task1);
        $this->taskManager->save($task2);

        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());
        $task2 = $this->taskManager->find($task2->getUuid());

        $this->assertEquals('home', $task1->getProject());
        $this->assertEquals('office', $task2->getProject());

        $this->assertCount(2, $this->taskManager->filterPending());
        $this->assertCount(1, $this->taskManager->filterPending('project:home'));
        $this->assertCount(1, $this->taskManager->filterPending('project:office'));
        $this->assertCount(0, $this->taskManager->filterPending('project:hobby'));

        $task2->setProject('home');
        $this->taskManager->save($task2);

        $this->assertCount(2, $this->taskManager->filterPending());
        $this->assertCount(2, $this->taskManager->filterPending('project:home'));
        $this->assertCount(0, $this->taskManager->filterPending('project:office'));
        $this->assertCount(0, $this->taskManager->filterPending('project:hobby'));
    }

    public function testProjects()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setProject('home');

        $task2 = new Task();
        $task2->setDescription('foo2');
        $task2->setProject('office');

        $this->taskManager->save($task1);
        $this->taskManager->save($task2);

        $this->assertEquals(array('home', 'office'), $this->taskwarrior->projects());
    }

    public function testPriority()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setPriority(Task::PRIORITY_MEDIUM);

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());

        $this->assertEquals(Task::PRIORITY_MEDIUM, $task1->getPriority());

        $task1->setPriority(Task::PRIORITY_HIGH);

        $this->taskManager->save($task1);
        $this->taskManager->clear();
        $task1 = $this->taskManager->find($task1->getUuid());

        $this->assertEquals(Task::PRIORITY_HIGH, $task1->getPriority());
    }

    public function testTag()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());

        $this->assertTrue(is_array($task1->getTags()));
        $this->assertEmpty($task1->getTags());

        $task1->removeTag('a');
        $task1->addTag('a');
        $task1->setTags(array('a', 'b', 'c'));
        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());
        $this->assertEquals(array('a', 'b', 'c'), $task1->getTags());

        $task1->addTag('d');
        $task1->removeTag('a');

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());
        $this->assertEquals(array('b', 'c', 'd'), $task1->getTags());
        $this->assertCount(0, $this->taskManager->filterPending('+a'));
        $this->assertCount(1, $this->taskManager->filterPending('+b'));
    }

    public function testTagUnicode()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->addTag('später');

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());
        $this->assertEquals(array('später'), $task1->getTags());
        $this->assertEquals(array('später'), $this->taskwarrior->tags());

        $this->assertCount(1,$this->taskManager->filterPending('+später'));
    }

    public function testTagNameNotAllowed()
    {
        $this->setExpectedException('DavidBadura\Taskwarrior\Exception\TaskwarriorException',
            "Tag with the name 'foo-bar' is not allowed");

        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->addTag('foo-bar');

        $this->taskManager->save($task1);
    }

    public function testWait()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());
        $this->assertNull($task1->getWait());

        $task1->setWait($this->createDateTime('+2 sec'));
        $this->taskManager->save($task1);
        $this->assertTrue($task1->isWaiting());

        $this->assertCount(0, $this->taskManager->filterPending());
        $this->assertCount(1, $this->taskManager->filter('status:waiting'));

        sleep(3);

        $this->assertCount(1, $this->taskManager->filterPending());
        $this->assertFalse($task1->isWaiting());
    }

    public function testRecurring()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setDue('tomorrow');
        $task1->setRecurring('daily');

        $this->taskManager->save($task1);

        $this->assertCount(2, $this->taskManager->filter());

        $this->assertTrue($task1->isRecurring());

        $result = $this->taskManager->filterPending();
        $this->assertCount(1, $result);

        $this->assertTrue($result[0]->isPending());
    }

    public function testRecurringRemoveRecurringException()
    {
        $this->setExpectedException('DavidBadura\Taskwarrior\Exception\TaskwarriorException',
            'You cannot remove the recurrence from a recurring task.');

        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setDue('tomorrow');
        $task1->setRecurring('daily');

        $this->taskManager->save($task1);

        $task1->setRecurring(null);

        $this->taskManager->save($task1);
    }

    public function testRecurringRemoveDueException()
    {
        $this->setExpectedException('DavidBadura\Taskwarrior\Exception\TaskwarriorException',
            'You cannot remove the due date from a recurring task.');

        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setDue('tomorrow');
        $task1->setRecurring('daily');

        $this->taskManager->save($task1);

        $task1->setDue(null);

        $this->taskManager->save($task1);
    }

    public function testRecurringWithoutDue()
    {
        $this->setExpectedException('DavidBadura\Taskwarrior\Exception\TaskwarriorException',
            "A recurring task must also have a 'due' date.");

        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setRecurring('daily');

        $this->taskManager->save($task1);
    }


    public function testRecurringNull()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setDue('tomorrow');
        $task1->setRecurring(null);

        $this->taskManager->save($task1);

        $this->assertCount(1, $this->taskManager->filter());
    }

    public function testRecurringModify()
    {
        $recur1 = new Recurring(Recurring::DAILY);
        $recur2 = new Recurring(Recurring::WEEKLY);

        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setDue('tomorrow');
        $task1->setRecurring($recur1);

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());
        $this->assertEquals($recur1, $task1->getRecurring());

        $task1->setRecurring($recur2);

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());
        $this->assertEquals($recur2, $task1->getRecurring());
    }

    public function testRecurringDelete()
    {
        $recur1 = new Recurring(Recurring::DAILY);

        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setDue('tomorrow');
        $task1->setRecurring($recur1);

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $this->assertCount(1, $this->taskManager->filter('status:recurring'));
        $this->assertCount(2, $this->taskManager->filter());

        $this->taskManager->delete($task1);

        $this->taskManager->clear();

        $this->assertCount(0, $this->taskManager->filter('status:recurring'));
        $this->assertCount(2, $this->taskManager->filter());
    }

    public function testUntil()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setUntil('+2 sec');

        $this->taskManager->save($task1);

        $this->assertCount(1, $this->taskManager->filterPending());

        sleep(3);

        $this->assertCount(0, $this->taskManager->filterPending());
    }


    public function testUntilModify()
    {
        $date1 = $this->createDateTime('tomorrow');
        $date2 = $this->createDateTime('+2 day');

        $task1 = new Task();
        $task1->setDescription('foo1');
        $task1->setUntil($date1);

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());
        $this->assertEquals($date1, $task1->getUntil());

        $task1->setUntil($date2);

        $this->taskManager->save($task1);
        $this->taskManager->clear();

        $task1 = $this->taskManager->find($task1->getUuid());
        $this->assertEquals($date2, $task1->getUntil());
    }

    public function testReopen()
    {
        $task = new Task();
        $task->setDescription('foo');

        $this->taskManager->save($task);
        $this->assertTrue($task->isPending());
        $this->assertNull($task->getEnd());

        $this->taskManager->done($task);
        $this->assertTrue($task->isCompleted());
        $this->assertInstanceOf('Carbon\Carbon', $task->getEnd());

        $this->taskManager->reopen($task);
        $this->assertTrue($task->isPending());
        $this->assertNull($task->getEnd());

        $this->taskManager->delete($task);
        $this->assertTrue($task->isDeleted());
        $this->assertInstanceOf('Carbon\Carbon', $task->getEnd());

        $this->taskManager->reopen($task);
        $this->assertTrue($task->isPending());
        $this->assertNull($task->getEnd());
    }

    public function testComplexFilter()
    {
        $task1 = new Task();
        $task1->setDescription('foo1');

        $this->taskManager->save($task1);
        $this->assertCount(1, $this->taskManager->filter('(status:pending or status:waiting)'));
        $this->assertCount(1, $this->taskManager->filterPending('(status:pending or status:waiting)'));
    }

    public function testDependenciesException()
    {
        $this->setExpectedException('DavidBadura\Taskwarrior\Exception\ReferenceException');

        $task1 = new Task();
        $task1->setDescription("a");

        $task2 = new Task();
        $task2->setDescription("b");

        $task3 = new Task();
        $task3->setDescription("c");

        $task1->addDependency($task2);
        $task1->addDependency($task3);

        $this->taskManager->save($task1);
    }

    public function testDependencies()
    {
        $task1 = new Task();
        $task1->setDescription("a");

        $task2 = new Task();
        $task2->setDescription("b");

        $task1->addDependency($task2);

        $this->taskManager->save($task2);
        $this->taskManager->save($task1);

        $this->taskManager->clear();
        $temp1 = $this->taskManager->find($task1->getUuid());

        $this->assertCount(1, $temp1->getDependencies());

        $temp2 = $temp1->getDependencies()[0];

        $this->assertInstanceOf('DavidBadura\Taskwarrior\Task', $temp2);
        $this->assertEquals($task2->getUuid(), $temp2->getUuid());
        $this->assertEquals('b', $temp2->getDescription());

        $temp1->removeDependency($temp2);

        $this->taskManager->save($temp1);

        $this->taskManager->clear();
        $temp1 = $this->taskManager->find($task1->getUuid());

        $this->assertCount(0, $temp1->getDependencies());
    }

    public function testLazyReferencesUuid()
    {
        $task = $this->taskManager->getReference('foo');

        $this->assertEquals('foo', $task->getUuid());
    }

    public function testLazyReferencesNotFound()
    {
        $this->setExpectedException('DavidBadura\Taskwarrior\Exception\TaskwarriorException');

        $task = $this->taskManager->getReference('foo');

        $task->getDescription();
    }

    public function testLazyReferencesLoad()
    {
        $task = new Task();
        $task->setDescription('foo');

        $this->taskManager->save($task);

        $this->taskManager->clear();

        $task2 = $this->taskManager->getReference($task->getUuid());

        $this->assertNotSame($task, $task2);
        $this->assertEquals('foo', $task2->getDescription());
    }

    public function testSameReferences()
    {
        $task = new Task();
        $task->setDescription('foo');

        $this->taskManager->save($task);

        $task2 = $this->taskManager->getReference($task->getUuid());

        $this->assertSame($task, $task2);
        $this->assertEquals('foo', $task2->getDescription());
    }

    public function testFilterReferences()
    {
        $task = new Task();
        $task->setDescription('foo');

        $this->taskManager->save($task);

        $this->taskManager->clear();

        $task = $this->taskManager->getReference($task->getUuid());

        $this->taskManager->filter();

        $this->assertEquals('foo', $task->getDescription());
    }

    /**
     * @param string $string
     * @return \DateTime
     */
    private function createDateTime($string = 'now')
    {
        return new \Carbon\Carbon($string);
    }
}