class FilterDateTest

class FilterDateTest extends DateTimeHandlerTestBase {
    
    /**
     * {@inheritdoc}
     */
    public static $testViews = [
        'test_filter_datetime',
    ];
    
    /**
     * An array of timezone extremes to test.
     *
     * @var string[]
     */
    protected static $timezones = [
        // UTC-12, no DST.
'Pacific/Kwajalein',
        // UTC-11, no DST.
'Pacific/Midway',
        // UTC-7, no DST.
'America/Phoenix',
        // UTC.
'UTC',
        // UTC+5:30, no DST.
'Asia/Kolkata',
        // UTC+12, no DST.
'Pacific/Funafuti',
        // UTC+13, no DST.
'Pacific/Tongatapu',
    ];
    
    /**
     * {@inheritdoc}
     *
     * Create nodes with relative dates of yesterday, today, and tomorrow.
     */
    protected function setUp($import_test_views = TRUE) : void {
        parent::setUp($import_test_views);
        // Change field storage to date-only.
        $storage = FieldStorageConfig::load('node.' . static::$fieldName);
        $storage->setSetting('datetime_type', DateTimeItem::DATETIME_TYPE_DATE);
        $storage->save();
        // Retrieve tomorrow, today and yesterday dates just to create the nodes.
        $timestamp = $this->getUTCEquivalentOfUserNowAsTimestamp();
        $dates = $this->getRelativeDateValuesFromTimestamp($timestamp);
        // Clean the nodes on setUp.
        $this->nodes = [];
        foreach ($dates as $date) {
            $node = Node::create([
                'title' => $this->randomMachineName(8),
                'type' => 'page',
                'field_date' => [
                    'value' => $date,
                ],
            ]);
            $node->save();
            $this->nodes[] = $node;
        }
        // Add a node where the date field is empty.
        $node = Node::create([
            'title' => $this->randomMachineName(8),
            'type' => 'page',
            'field_date' => [],
        ]);
        $node->save();
        $this->nodes[] = $node;
    }
    
    /**
     * Tests offsets with date-only fields.
     */
    public function testDateOffsets() : void {
        $view = Views::getView('test_filter_datetime');
        $field = static::$fieldName . '_value';
        foreach (static::$timezones as $timezone) {
            $this->setSiteTimezone($timezone);
            $timestamp = $this->getUTCEquivalentOfUserNowAsTimestamp();
            $dates = $this->getRelativeDateValuesFromTimestamp($timestamp);
            $this->updateNodesDateFieldsValues($dates);
            // Test simple operations.
            $view->initHandlers();
            // A greater than or equal to 'now', should return the 'today' and the
            // 'tomorrow' node.
            $view->filter[$field]->operator = '>=';
            $view->filter[$field]->value['type'] = 'offset';
            $view->filter[$field]->value['value'] = 'now';
            $view->setDisplay('default');
            $this->executeView($view);
            $expected_result = [
                [
                    'nid' => $this->nodes[0]
                        ->id(),
                ],
                [
                    'nid' => $this->nodes[1]
                        ->id(),
                ],
            ];
            $this->assertIdenticalResultset($view, $expected_result, $this->map);
            $view->destroy();
            // Only dates in the past.
            $view->initHandlers();
            $view->filter[$field]->operator = '<';
            $view->filter[$field]->value['type'] = 'offset';
            $view->filter[$field]->value['value'] = 'now';
            $view->setDisplay('default');
            $this->executeView($view);
            $expected_result = [
                [
                    'nid' => $this->nodes[2]
                        ->id(),
                ],
            ];
            $this->assertIdenticalResultset($view, $expected_result, $this->map);
            $view->destroy();
            // Test offset for between operator. Only 'tomorrow' node should appear.
            $view->initHandlers();
            $view->filter[$field]->operator = 'between';
            $view->filter[$field]->value['type'] = 'offset';
            $view->filter[$field]->value['max'] = '+2 days';
            $view->filter[$field]->value['min'] = '+1 day';
            $view->setDisplay('default');
            $this->executeView($view);
            $expected_result = [
                [
                    'nid' => $this->nodes[0]
                        ->id(),
                ],
            ];
            $this->assertIdenticalResultset($view, $expected_result, $this->map);
            $view->destroy();
            // Test the empty operator.
            $view->initHandlers();
            $view->filter[$field]->operator = 'empty';
            $view->setDisplay('default');
            $this->executeView($view);
            $expected_result = [
                [
                    'nid' => $this->nodes[3]
                        ->id(),
                ],
            ];
            $this->assertIdenticalResultset($view, $expected_result, $this->map);
            $view->destroy();
            // Test the not empty operator.
            $view->initHandlers();
            $view->filter[$field]->operator = 'not empty';
            $view->setDisplay('default');
            $this->executeView($view);
            $expected_result = [
                [
                    'nid' => $this->nodes[0]
                        ->id(),
                ],
                [
                    'nid' => $this->nodes[1]
                        ->id(),
                ],
                [
                    'nid' => $this->nodes[2]
                        ->id(),
                ],
            ];
            $this->assertIdenticalResultset($view, $expected_result, $this->map);
            $view->destroy();
        }
    }
    
    /**
     * Tests date filter with date-only fields.
     */
    public function testDateIs() : void {
        $view = Views::getView('test_filter_datetime');
        $field = static::$fieldName . '_value';
        foreach (static::$timezones as $timezone) {
            $this->setSiteTimezone($timezone);
            $timestamp = $this->getUTCEquivalentOfUserNowAsTimestamp();
            $dates = $this->getRelativeDateValuesFromTimestamp($timestamp);
            $this->updateNodesDateFieldsValues($dates);
            // Test simple operations.
            $view->initHandlers();
            // Filtering with nodes date-only values (format: Y-m-d) to test UTC
            // conversion does NOT change the day.
            $view->filter[$field]->operator = '=';
            $view->filter[$field]->value['type'] = 'date';
            $view->filter[$field]->value['value'] = $this->nodes[2]->field_date
                ->first()
                ->getValue()['value'];
            $view->setDisplay('default');
            $this->executeView($view);
            $expected_result = [
                [
                    'nid' => $this->nodes[2]
                        ->id(),
                ],
            ];
            $this->assertIdenticalResultset($view, $expected_result, $this->map);
            $view->destroy();
            // Test offset for between operator. Only 'today' and 'tomorrow' nodes
            // should appear.
            $view->initHandlers();
            $view->filter[$field]->operator = 'between';
            $view->filter[$field]->value['type'] = 'date';
            $view->filter[$field]->value['max'] = $this->nodes[0]->field_date
                ->first()
                ->getValue()['value'];
            $view->filter[$field]->value['min'] = $this->nodes[1]->field_date
                ->first()
                ->getValue()['value'];
            $view->setDisplay('default');
            $this->executeView($view);
            $expected_result = [
                [
                    'nid' => $this->nodes[0]
                        ->id(),
                ],
                [
                    'nid' => $this->nodes[1]
                        ->id(),
                ],
            ];
            $this->assertIdenticalResultset($view, $expected_result, $this->map);
            $view->destroy();
        }
    }
    
    /**
     * Updates tests nodes date fields values.
     *
     * @param array $dates
     *   An array of DATETIME_DATE_STORAGE_FORMAT date values.
     */
    protected function updateNodesDateFieldsValues(array $dates) {
        foreach ($dates as $index => $date) {
            $this->nodes[$index]->{static::$fieldName}->value = $date;
            $this->nodes[$index]
                ->save();
        }
    }

}