class FieldDateTest

class FieldDateTest extends ViewsKernelTestBase {
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_view',
    ];
    
    /**
     * {@inheritdoc}
     */
    public function schemaDefinition() {
        $schema = parent::schemaDefinition();
        $schema['views_test_data']['fields']['destroyed'] = [
            'description' => "The destruction date of this record",
            'type' => 'int',
            'unsigned' => TRUE,
            'not null' => FALSE,
            'default' => 0,
            'size' => 'big',
        ];
        return $schema;
    }
    
    /**
     * {@inheritdoc}
     */
    public function viewsData() {
        $data = parent::viewsData();
        $data['views_test_data']['created']['field']['id'] = 'date';
        $data['views_test_data']['destroyed'] = [
            'title' => 'Destroyed',
            'help' => 'Date in future this will be destroyed.',
            'field' => [
                'id' => 'date',
            ],
            'argument' => [
                'id' => 'date',
            ],
            'filter' => [
                'id' => 'date',
            ],
            'sort' => [
                'id' => 'date',
            ],
        ];
        return $data;
    }
    
    /**
     * {@inheritdoc}
     */
    public function dataSet() {
        $data_set = parent::dataSet();
        foreach ($data_set as $i => $data) {
            $data_set[$i]['destroyed'] = gmmktime(0, 0, 0, 1, 1, 2050);
        }
        return $data_set;
    }
    
    /**
     * Sets up functional test of the views date field.
     */
    public function testFieldDate() : void {
        $view = Views::getView('test_view');
        $view->setDisplay();
        $view->displayHandlers
            ->get('default')
            ->overrideOption('fields', [
            'created' => [
                'id' => 'created',
                'table' => 'views_test_data',
                'field' => 'created',
                'relationship' => 'none',
                // ISO 8601 format, see https://www.php.net/manual/datetime.format.php
'custom_date_format' => 'c',
            ],
            'destroyed' => [
                'id' => 'destroyed',
                'table' => 'views_test_data',
                'field' => 'destroyed',
                'relationship' => 'none',
                'custom_date_format' => 'c',
            ],
        ]);
        $time = gmmktime(0, 0, 0, 1, 1, 2000);
        $this->executeView($view);
        $timezones = [
            NULL,
            'UTC',
            'America/New_York',
        ];
        
        /** @var \Drupal\Core\Datetime\DateFormatterInterface $date_formatter */
        $date_formatter = $this->container
            ->get('date.formatter');
        // Check each date/time in various timezones.
        foreach ($timezones as $timezone) {
            $dates = [
                'short' => $date_formatter->format($time, 'short', '', $timezone),
                'medium' => $date_formatter->format($time, 'medium', '', $timezone),
                'long' => $date_formatter->format($time, 'long', '', $timezone),
                'custom' => $date_formatter->format($time, 'custom', 'c', $timezone),
                'fallback' => $date_formatter->format($time, 'fallback', '', $timezone),
                'html_date' => $date_formatter->format($time, 'html_date', '', $timezone),
                'html_datetime' => $date_formatter->format($time, 'html_datetime', '', $timezone),
                'html_month' => $date_formatter->format($time, 'html_month', '', $timezone),
                'html_time' => $date_formatter->format($time, 'html_time', '', $timezone),
                'html_week' => $date_formatter->format($time, 'html_week', '', $timezone),
                'html_year' => $date_formatter->format($time, 'html_year', '', $timezone),
                'html_yearless_date' => $date_formatter->format($time, 'html_yearless_date', '', $timezone),
            ];
            $this->assertRenderedDatesEqual($view, $dates, $timezone);
        }
        // Check times in the past.
        $time_since = $date_formatter->formatTimeDiffSince($time);
        $intervals = [
            'raw time ago' => $time_since,
            'time ago' => "{$time_since} ago",
            'raw time span' => $time_since,
            'inverse time span' => "-{$time_since}",
            'time span' => "{$time_since} ago",
        ];
        $this->assertRenderedDatesEqual($view, $intervals);
        // Check times in the future.
        $time = gmmktime(0, 0, 0, 1, 1, 2050);
        $formatted = $date_formatter->formatTimeDiffUntil($time);
        $intervals = [
            'raw time span' => "-{$formatted}",
            'time span' => "{$formatted} hence",
        ];
        $this->assertRenderedFutureDatesEqual($view, $intervals);
    }
    
    /**
     * Asserts properly formatted display against 'created' field in view.
     *
     * @param \Drupal\views\ViewExecutable $view
     *   View to be tested.
     * @param array $map
     *   Data map.
     * @param string|null $timezone
     *   Optional timezone.
     *
     * @internal
     */
    protected function assertRenderedDatesEqual(ViewExecutable $view, array $map, ?string $timezone = NULL) : void {
        foreach ($map as $date_format => $expected_result) {
            $view->field['created']->options['date_format'] = $date_format;
            if (isset($timezone)) {
                $message = "{$date_format} format for timezone {$timezone} matches.";
                $view->field['created']->options['timezone'] = $timezone;
            }
            else {
                $message = "{$date_format} format matches.";
            }
            $actual_result = (string) $view->field['created']
                ->advancedRender($view->result[0]);
            $this->assertEquals($expected_result, strip_tags($actual_result), $message);
        }
    }
    
    /**
     * Asserts properly formatted display against 'destroyed' field in view.
     *
     * @param \Drupal\views\ViewExecutable $view
     *   View to be tested.
     * @param array $map
     *   Data map.
     *
     * @internal
     */
    protected function assertRenderedFutureDatesEqual(ViewExecutable $view, array $map) : void {
        foreach ($map as $format => $result) {
            $view->field['destroyed']->options['date_format'] = $format;
            $view_result = (string) $view->field['destroyed']
                ->advancedRender($view->result[0]);
            $this->assertEquals($result, strip_tags($view_result), "{$format} format matches.");
        }
    }

}