class ConfigForm

class ConfigForm extends ConfigFormBase {
    
    /**
     * @var \Symfony\Component\HttpKernel\Profiler\Profiler
     */
    private $profiler;
    
    /**
     * @var array
     */
    private $templates;
    
    /**
     * @var \Drupal\webprofiler\Profiler\ProfilerStorageManager
     */
    private $storageManager;
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container) {
        return new static($container->get('config.factory'), $container->get('profiler'), $container->get('profiler.storage_manager'), $container->getParameter('data_collector.templates'));
    }
    
    /**
     * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
     * @param Profiler $profiler
     * @param \Drupal\webprofiler\Profiler\ProfilerStorageManager $storageManager
     * @param array $templates
     */
    public function __construct(ConfigFactoryInterface $config_factory, Profiler $profiler, ProfilerStorageManager $storageManager, $templates) {
        parent::__construct($config_factory);
        $this->profiler = $profiler;
        $this->templates = $templates;
        $this->storageManager = $storageManager;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getFormId() {
        return 'webprofiler_config';
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildForm(array $form, FormStateInterface $form_state) {
        $config = $this->config('webprofiler.config');
        $form['purge_on_cache_clear'] = [
            '#type' => 'checkbox',
            '#title' => $this->t('Purge on cache clear'),
            '#description' => $this->t('Deletes all profiler files during cache clear.'),
            '#default_value' => $config->get('purge_on_cache_clear'),
        ];
        $storages = $this->storageManager
            ->getStorages();
        $form['storage'] = [
            '#type' => 'select',
            '#title' => $this->t('Storage backend'),
            '#description' => $this->t('Choose were to store profiler data.'),
            '#options' => $storages,
            '#default_value' => $config->get('storage'),
        ];
        $form['exclude'] = [
            '#type' => 'textarea',
            '#title' => $this->t('Exclude'),
            '#default_value' => $config->get('exclude'),
            '#description' => $this->t('Paths to exclude for profiling. One path per line.'),
        ];
        $form['active_toolbar_items'] = [
            '#type' => 'checkboxes',
            '#title' => $this->t('Active toolbar items'),
            '#options' => $this->getCollectors(),
            '#description' => $this->t('Choose which items to show into the toolbar.'),
            '#default_value' => $config->get('active_toolbar_items'),
        ];
        $form['ide_settings'] = [
            '#type' => 'details',
            '#title' => $this->t('IDE settings'),
            '#open' => FALSE,
        ];
        $form['ide_settings']['ide_link'] = [
            '#type' => 'textfield',
            '#title' => $this->t('IDE link'),
            '#description' => $this->t('IDE link for open files.'),
            '#default_value' => $config->get('ide_link'),
        ];
        $form['ide_settings']['ide_link_remote'] = [
            '#type' => 'textfield',
            '#title' => $this->t('IDE link remote path'),
            '#description' => $this->t('The path of the remote docroot. Leave blank if the docroot is on the same machine of the IDE. No trailing slash.'),
            '#default_value' => $config->get('ide_link_remote'),
        ];
        $form['ide_settings']['ide_link_local'] = [
            '#type' => 'textfield',
            '#title' => $this->t('IDE link local path'),
            '#description' => $this->t('The path of the local docroot. Leave blank if the docroot is on the same machine of IDE. No trailing slash.'),
            '#default_value' => $config->get('ide_link_local'),
        ];
        $form['database'] = [
            '#type' => 'details',
            '#title' => $this->t('Database settings'),
            '#open' => FALSE,
            '#states' => array(
                'visible' => array(
                    array(
                        'input[name="active_toolbar_items[database]"]' => array(
                            'checked' => TRUE,
                        ),
                    ),
                ),
            ),
        ];
        $form['database']['query_sort'] = [
            '#type' => 'radios',
            '#title' => $this->t('Sort query log'),
            '#options' => [
                'source' => 'by source',
                'duration' => 'by duration',
            ],
            '#description' => $this->t('The query table can be sorted in the order that the queries were executed or by descending duration.'),
            '#default_value' => $config->get('query_sort'),
        ];
        $form['database']['query_highlight'] = [
            '#type' => 'number',
            '#title' => $this->t('Slow query highlighting'),
            '#description' => $this->t('Enter an integer in milliseconds. Any query which takes longer than this many milliseconds will be highlighted in the query log. This indicates a possibly inefficient query, or a candidate for caching.'),
            '#default_value' => $config->get('query_highlight'),
            '#min' => 0,
        ];
        $storageId = $this->config('webprofiler.config')
            ->get('storage');
        $storage = $this->storageManager
            ->getStorage($storageId);
        $form['purge'] = [
            '#type' => 'details',
            '#title' => $this->t('Purge profiles'),
            '#open' => FALSE,
        ];
        $form['purge']['actions'] = [
            '#type' => 'actions',
        ];
        $form['purge']['actions']['purge'] = [
            '#type' => 'submit',
            '#value' => $this->t('Purge'),
            '#submit' => [
                [
                    $this,
                    'purge',
                ],
            ],
        ];
        $form['purge']['purge-help'] = [
            '#type' => 'inline_template',
            '#template' => '<div class="form-item">{{ message }}</div>',
            '#context' => [
                'message' => $this->t('Purge %storage profiles.', [
                    '%storage' => $storage['title'],
                ]),
            ],
        ];
        return parent::buildForm($form, $form_state);
    }
    
    /**
     * {@inheritdoc}
     */
    public function submitForm(array &$form, FormStateInterface $form_state) {
        $this->config('webprofiler.config')
            ->set('purge_on_cache_clear', $form_state->getValue('purge_on_cache_clear'))
            ->set('storage', $form_state->getValue('storage'))
            ->set('exclude', $form_state->getValue('exclude'))
            ->set('active_toolbar_items', $form_state->getValue('active_toolbar_items'))
            ->set('ide_link', $form_state->getValue('ide_link'))
            ->set('ide_link_remote', $form_state->getValue('ide_link_remote'))
            ->set('ide_link_local', $form_state->getValue('ide_link_local'))
            ->set('query_sort', $form_state->getValue('query_sort'))
            ->set('query_highlight', $form_state->getValue('query_highlight'))
            ->save();
        parent::submitForm($form, $form_state);
    }
    
    /**
     * Purges profiles.
     */
    public function purge(array &$form, FormStateInterface $form_state) {
        $this->profiler
            ->purge();
        drupal_set_message($this->t('Profiles purged'));
    }
    
    /**
     * @return array
     */
    private function getCollectors() {
        $options = [];
        foreach ($this->templates as $template) {
            // drupal collector should not be disabled
            if ($template[0] != 'drupal') {
                $options[$template[0]] = $template[2];
            }
        }
        asort($options);
        return $options;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getEditableConfigNames() {
        return [
            'webprofiler.config',
        ];
    }

}