class WorkflowUiTest

class WorkflowUiTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'workflows',
        'workflow_type_test',
        'block',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // We're testing local actions.
        $this->drupalPlaceBlock('local_actions_block');
    }
    
    /**
     * Tests route access/permissions.
     */
    public function testAccess() {
        // Create a minimal workflow for testing.
        $workflow = Workflow::create([
            'id' => 'test',
            'type' => 'workflow_type_test',
            'label' => 'Test',
        ]);
        $workflow->getTypePlugin()
            ->addState('draft', 'Draft')
            ->addState('published', 'Published')
            ->addTransition('publish', 'Publish', [
            'draft',
            'published',
        ], 'published');
        $workflow->save();
        $paths = [
            'admin/config/workflow/workflows',
            'admin/config/workflow/workflows/add',
            'admin/config/workflow/workflows/manage/test',
            'admin/config/workflow/workflows/manage/test/delete',
            'admin/config/workflow/workflows/manage/test/add_state',
            'admin/config/workflow/workflows/manage/test/state/published',
            'admin/config/workflow/workflows/manage/test/state/published/delete',
            'admin/config/workflow/workflows/manage/test/add_transition',
            'admin/config/workflow/workflows/manage/test/transition/publish',
            'admin/config/workflow/workflows/manage/test/transition/publish/delete',
        ];
        foreach ($paths as $path) {
            $this->drupalGet($path);
            // No access.
            $this->assertSession()
                ->statusCodeEquals(403);
        }
        $this->drupalLogin($this->createUser([
            'administer workflows',
        ]));
        foreach ($paths as $path) {
            $this->drupalGet($path);
            // User has access.
            $this->assertSession()
                ->statusCodeEquals(200);
        }
        // Ensure that default states can not be deleted.
        \Drupal::state()->set('workflow_type_test.required_states', [
            'published',
        ]);
        $this->drupalGet('admin/config/workflow/workflows/manage/test/state/published/delete');
        $this->assertSession()
            ->statusCodeEquals(403);
        \Drupal::state()->set('workflow_type_test.required_states', []);
        // Delete one of the states and ensure the other test cannot be deleted.
        $this->drupalGet('admin/config/workflow/workflows/manage/test/state/published/delete');
        $this->submitForm([], 'Delete');
        $this->drupalGet('admin/config/workflow/workflows/manage/test/state/draft/delete');
        $this->assertSession()
            ->statusCodeEquals(403);
    }
    
    /**
     * Tests the machine name validation of the state add form.
     */
    public function testStateMachineNameValidation() {
        Workflow::create([
            'id' => 'test_workflow',
            'type' => 'workflow_type_test',
        ])->save();
        $this->drupalLogin($this->createUser([
            'administer workflows',
        ]));
        $this->drupalGet('admin/config/workflow/workflows/manage/test_workflow/add_state');
        $this->submitForm([
            'label' => 'Test State',
            'id' => 'Invalid ID',
        ], 'Save');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('The machine-readable name must contain only lowercase letters, numbers, and underscores.');
        $this->drupalGet('admin/config/workflow/workflows/manage/test_workflow/add_transition');
        $this->submitForm([
            'label' => 'Test Transition',
            'id' => 'Invalid ID',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('The machine-readable name must contain only lowercase letters, numbers, and underscores.');
    }
    
    /**
     * Tests the creation of a workflow through the UI.
     */
    public function testWorkflowCreation() {
        $workflow_storage = $this->container
            ->get('entity_type.manager')
            ->getStorage('workflow');
        
        /** @var \Drupal\workflows\WorkflowInterface $workflow */
        $this->drupalLogin($this->createUser([
            'access administration pages',
            'administer workflows',
        ]));
        $this->drupalGet('admin/config/workflow');
        $this->assertSession()
            ->linkByHrefExists('admin/config/workflow/workflows');
        $this->clickLink('Workflows');
        $this->assertSession()
            ->pageTextContains('Workflows');
        $this->assertSession()
            ->pageTextContains('There are no workflows yet.');
        $this->clickLink('Add workflow');
        $this->submitForm([
            'label' => 'Test',
            'id' => 'test',
            'workflow_type' => 'workflow_type_test',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Created the Test Workflow.');
        $this->assertSession()
            ->addressEquals('admin/config/workflow/workflows/manage/test/add_state');
        $this->drupalGet('/admin/config/workflow/workflows/manage/test');
        $this->assertSession()
            ->pageTextContains('This workflow has no states and will be disabled until there is at least one, add a new state.');
        $this->assertSession()
            ->pageTextContains('There are no states yet.');
        $this->clickLink('Add a new state');
        $this->submitForm([
            'label' => 'Published',
            'id' => 'published',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Created Published state.');
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertFalse($workflow->getTypePlugin()
            ->getState('published')
            ->canTransitionTo('published'), 'No default transition from published to published exists.');
        $this->clickLink('Add a new state');
        // Don't create a draft to draft transition by default.
        $this->submitForm([
            'label' => 'Draft',
            'id' => 'draft',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Created Draft state.');
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertFalse($workflow->getTypePlugin()
            ->getState('draft')
            ->canTransitionTo('draft'), 'Can not transition from draft to draft');
        $this->clickLink('Add a new transition');
        $this->submitForm([
            'id' => 'publish',
            'label' => 'Publish',
            'from[draft]' => 'draft',
            'to' => 'published',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Created Publish transition.');
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertTrue($workflow->getTypePlugin()
            ->getState('draft')
            ->canTransitionTo('published'), 'Can transition from draft to published');
        $this->clickLink('Add a new transition');
        $this->assertCount(2, $this->cssSelect('input[name="to"][type="radio"]'));
        $this->assertCount(0, $this->cssSelect('input[name="to"][checked="checked"][type="radio"]'));
        $this->submitForm([
            'id' => 'create_new_draft',
            'label' => 'Create new draft',
            'from[draft]' => 'draft',
            'to' => 'draft',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Created Create new draft transition.');
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertTrue($workflow->getTypePlugin()
            ->getState('draft')
            ->canTransitionTo('draft'), 'Can transition from draft to draft');
        // The fist state to edit on the page should be published.
        $this->clickLink('Edit');
        $this->assertSession()
            ->fieldValueEquals('label', 'Published');
        // Change the label.
        $this->submitForm([
            'label' => 'Live',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Saved Live state.');
        // Allow published to draft.
        $this->clickLink('Edit', 3);
        $this->submitForm([
            'from[published]' => 'published',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Saved Create new draft transition.');
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertTrue($workflow->getTypePlugin()
            ->getState('published')
            ->canTransitionTo('draft'), 'Can transition from published to draft');
        // Try creating a duplicate transition.
        $this->clickLink('Add a new transition');
        $this->submitForm([
            'id' => 'create_new_draft',
            'label' => 'Create new draft',
            'from[published]' => 'published',
            'to' => 'draft',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('The machine-readable name is already in use. It must be unique.');
        // Try creating a transition which duplicates the states of another.
        $this->submitForm([
            'id' => 'create_new_draft2',
            'label' => 'Create new draft again',
            'from[published]' => 'published',
            'to' => 'draft',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('The transition from Live to Draft already exists.');
        // Create a new transition.
        $this->submitForm([
            'id' => 'save_and_publish',
            'label' => 'Save and publish',
            'from[published]' => 'published',
            'to' => 'published',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Created Save and publish transition.');
        // Edit the new transition and try to add an existing transition.
        $this->clickLink('Edit', 4);
        $this->submitForm([
            'from[draft]' => 'draft',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('The transition from Draft to Live already exists.');
        // Delete the transition.
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertTrue($workflow->getTypePlugin()
            ->hasTransitionFromStateToState('published', 'published'), 'Can transition from published to published');
        $this->clickLink('Delete');
        $this->assertSession()
            ->pageTextContains('Are you sure you want to delete Save and publish from Test?');
        $this->submitForm([], 'Delete');
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertFalse($workflow->getTypePlugin()
            ->hasTransitionFromStateToState('published', 'published'), 'Cannot transition from published to published');
        // Try creating a duplicate state.
        $this->drupalGet('admin/config/workflow/workflows/manage/test');
        $this->clickLink('Add a new state');
        $this->submitForm([
            'label' => 'Draft',
            'id' => 'draft',
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('The machine-readable name is already in use. It must be unique.');
        // Ensure that weight changes the state ordering.
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertEquals('published', $workflow->getTypePlugin()
            ->getInitialState()
            ->id());
        $this->drupalGet('admin/config/workflow/workflows/manage/test');
        $this->submitForm([
            'states[draft][weight]' => '-1',
        ], 'Save');
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertEquals('draft', $workflow->getTypePlugin()
            ->getInitialState()
            ->id());
        // Verify that we are still on the workflow edit page.
        $this->assertSession()
            ->addressEquals('admin/config/workflow/workflows/manage/test');
        // Ensure that weight changes the transition ordering.
        $this->assertEquals([
            'publish',
            'create_new_draft',
        ], array_keys($workflow->getTypePlugin()
            ->getTransitions()));
        $this->drupalGet('admin/config/workflow/workflows/manage/test');
        $this->submitForm([
            'transitions[create_new_draft][weight]' => '-1',
        ], 'Save');
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertEquals([
            'create_new_draft',
            'publish',
        ], array_keys($workflow->getTypePlugin()
            ->getTransitions()));
        // Verify that we are still on the workflow edit page.
        $this->assertSession()
            ->addressEquals('admin/config/workflow/workflows/manage/test');
        // Ensure that a delete link for the published state exists before deleting
        // the draft state.
        $published_delete_link = Url::fromRoute('entity.workflow.delete_state_form', [
            'workflow' => $workflow->id(),
            'workflow_state' => 'published',
        ])
            ->toString();
        $draft_delete_link = Url::fromRoute('entity.workflow.delete_state_form', [
            'workflow' => $workflow->id(),
            'workflow_state' => 'draft',
        ])
            ->toString();
        $this->assertSession()
            ->elementContains('css', 'tr[data-drupal-selector="edit-states-published"]', 'Delete');
        $this->assertSession()
            ->linkByHrefExists($published_delete_link);
        $this->assertSession()
            ->linkByHrefExists($draft_delete_link);
        // Make the published state a default state and ensure it is no longer
        // linked.
        \Drupal::state()->set('workflow_type_test.required_states', [
            'published',
        ]);
        $this->getSession()
            ->reload();
        $this->assertSession()
            ->linkByHrefNotExists($published_delete_link);
        $this->assertSession()
            ->linkByHrefExists($draft_delete_link);
        $this->assertSession()
            ->elementNotContains('css', 'tr[data-drupal-selector="edit-states-published"]', 'Delete');
        \Drupal::state()->set('workflow_type_test.required_states', []);
        $this->getSession()
            ->reload();
        $this->assertSession()
            ->elementContains('css', 'tr[data-drupal-selector="edit-states-published"]', 'Delete');
        $this->assertSession()
            ->linkByHrefExists($published_delete_link);
        $this->assertSession()
            ->linkByHrefExists($draft_delete_link);
        // Delete the Draft state.
        $this->clickLink('Delete');
        $this->assertSession()
            ->pageTextContains('Are you sure you want to delete Draft from Test?');
        $this->submitForm([], 'Delete');
        $this->assertSession()
            ->pageTextContains('State Draft deleted.');
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertFalse($workflow->getTypePlugin()
            ->hasState('draft'), 'Draft state deleted');
        $this->assertTrue($workflow->getTypePlugin()
            ->hasState('published'), 'Workflow still has published state');
        // The last state cannot be deleted so the only delete link on the page will
        // be for the workflow.
        $this->assertSession()
            ->linkByHrefNotExists($published_delete_link);
        $this->clickLink('Delete');
        $this->assertSession()
            ->pageTextContains('Are you sure you want to delete Test?');
        $this->submitForm([], 'Delete');
        $this->assertSession()
            ->pageTextContains('Workflow Test deleted.');
        $this->assertSession()
            ->pageTextContains('There are no workflows yet.');
        $this->assertNull($workflow_storage->loadUnchanged('test'), 'The test workflow has been deleted');
        // Ensure that workflow types with default configuration are initialized
        // correctly.
        $this->drupalGet('admin/config/workflow/workflows');
        $this->clickLink('Add workflow');
        $this->submitForm([
            'label' => 'Test 2',
            'id' => 'test2',
            'workflow_type' => 'workflow_type_required_state_test',
        ], 'Save');
        $this->assertSession()
            ->addressEquals('admin/config/workflow/workflows/manage/test2');
        $workflow = $workflow_storage->loadUnchanged('test2');
        $this->assertTrue($workflow->getTypePlugin()
            ->hasState('fresh'), 'The workflow has the "fresh" state');
        $this->assertTrue($workflow->getTypePlugin()
            ->hasState('rotten'), 'The workflow has the "rotten" state');
        $this->assertTrue($workflow->getTypePlugin()
            ->hasTransition('rot'), 'The workflow has the "rot" transition');
        $this->assertSession()
            ->pageTextContains('Fresh');
        $this->assertSession()
            ->pageTextContains('Rotten');
    }
    
    /**
     * Tests the workflow configuration form.
     */
    public function testWorkflowConfigurationForm() {
        $workflow = Workflow::create([
            'id' => 'test',
            'type' => 'workflow_type_complex_test',
            'label' => 'Test',
        ]);
        $workflow->getTypePlugin()
            ->addState('published', 'Published')
            ->addTransition('publish', 'Publish', [
            'published',
        ], 'published');
        $workflow->save();
        $this->drupalLogin($this->createUser([
            'administer workflows',
        ]));
        // Add additional information to the workflow via the configuration form.
        $this->drupalGet('admin/config/workflow/workflows/manage/test');
        $this->assertSession()
            ->pageTextContains('Example global workflow setting');
        $this->submitForm([
            'type_settings[example_setting]' => 'Extra global settings',
        ], 'Save');
        $workflow_storage = $this->container
            ->get('entity_type.manager')
            ->getStorage('workflow');
        $workflow = $workflow_storage->loadUnchanged('test');
        $this->assertEquals('Extra global settings', $workflow->getTypePlugin()
            ->getConfiguration()['example_setting']);
    }
    
    /**
     * Tests a workflow, state, and transition can have a numeric ID and label.
     */
    public function testNumericIds() {
        $this->drupalLogin($this->createUser([
            'administer workflows',
        ]));
        $this->drupalGet('admin/config/workflow/workflows');
        $this->clickLink('Add workflow');
        $this->submitForm([
            'label' => 123,
            'id' => 123,
            'workflow_type' => 'workflow_type_complex_test',
        ], 'Save');
        $this->assertSession()
            ->addressEquals('admin/config/workflow/workflows/manage/123/add_state');
        $this->submitForm([
            'label' => 456,
            'id' => 456,
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Created 456 state.');
        $this->clickLink('Add a new state');
        $this->submitForm([
            'label' => 789,
            'id' => 789,
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Created 789 state.');
        $this->clickLink('Add a new transition');
        $this->submitForm([
            'id' => 101112,
            'label' => 101112,
            'from[456]' => 456,
            'to' => 789,
        ], 'Save');
        $this->assertSession()
            ->pageTextContains('Created 101112 transition.');
        $workflow = $this->container
            ->get('entity_type.manager')
            ->getStorage('workflow')
            ->loadUnchanged(123);
        $this->assertEquals(123, $workflow->id());
        $this->assertEquals(456, $workflow->getTypePlugin()
            ->getState(456)
            ->id());
        $this->assertEquals(101112, $workflow->getTypePlugin()
            ->getTransition(101112)
            ->id());
        $this->assertEquals(789, $workflow->getTypePlugin()
            ->getTransition(101112)
            ->to()
            ->id());
    }
    
    /**
     * Tests the sorting of states and transitions by weight and label.
     */
    public function testSorting() {
        $workflow = Workflow::create([
            'id' => 'test',
            'type' => 'workflow_type_complex_test',
            'label' => 'Test',
        ]);
        $workflow->getTypePlugin()
            ->setConfiguration([
            'states' => [
                'two_a' => [
                    'label' => 'two a',
                    'weight' => 2,
                ],
                'three' => [
                    'label' => 'three',
                    'weight' => 3,
                ],
                'two_b' => [
                    'label' => 'two b',
                    'weight' => 2,
                ],
                'one' => [
                    'label' => 'one',
                    'weight' => 1,
                ],
            ],
            'transitions' => [
                'three' => [
                    'label' => 'three',
                    'from' => [
                        'three',
                    ],
                    'to' => 'three',
                    'weight' => 3,
                ],
                'two_a' => [
                    'label' => 'two a',
                    'from' => [
                        'two_a',
                    ],
                    'to' => 'two_a',
                    'weight' => 2,
                ],
                'one' => [
                    'label' => 'one',
                    'from' => [
                        'one',
                    ],
                    'to' => 'one',
                    'weight' => 1,
                ],
                'two_b' => [
                    'label' => 'two b',
                    'from' => [
                        'two_b',
                    ],
                    'to' => 'two_b',
                    'weight' => 2,
                ],
            ],
        ]);
        $workflow->save();
        $this->drupalLogin($this->createUser([
            'administer workflows',
        ]));
        $this->drupalGet('admin/config/workflow/workflows/manage/test');
        $expected_states = [
            'one',
            'two a',
            'two b',
            'three',
        ];
        $elements = $this->xpath('//details[@id="edit-states-container"]//table/tbody/tr');
        foreach ($elements as $key => $element) {
            $this->assertEquals($expected_states[$key], $element->find('xpath', 'td')
                ->getText());
        }
        $expected_transitions = [
            'one',
            'two a',
            'two b',
            'three',
        ];
        $elements = $this->xpath('//details[@id="edit-transitions-container"]//table/tbody/tr');
        foreach ($elements as $key => $element) {
            $this->assertEquals($expected_transitions[$key], $element->find('xpath', 'td')
                ->getText());
        }
        // Ensure that there are enough weights to satisfy the potential number of
        // states and transitions.
        $this->assertSession()
            ->selectExists('states[three][weight]')
            ->selectOption('2');
        $this->assertSession()
            ->selectExists('states[three][weight]')
            ->selectOption('-2');
        $this->assertSession()
            ->selectExists('transitions[three][weight]')
            ->selectOption('2');
        $this->assertSession()
            ->selectExists('transitions[three][weight]')
            ->selectOption('-2');
    }

}