<?php

namespace Kanboard\Plugin\ShrinkVertically\Controller;

use Kanboard\Controller\BaseController;

/**
 * Settings page for the ShrinkVertically plugin: configure how many pixels are
 * reserved around the vertically collapsed board columns.
 */
class ConfigController extends BaseController
{
    const DEFAULT_OFFSET = 240;
    const MIN_OFFSET = 0;
    const MAX_OFFSET = 2000;

    const DEFAULT_BAR_SIZE = 25;
    const MIN_BAR_SIZE = 0;
    const MAX_BAR_SIZE = 200;

    public function show()
    {
        $offset = (int) $this->configModel->get('shrink_vertically_offset', self::DEFAULT_OFFSET);
        $barSize = (int) $this->configModel->get('shrink_vertically_bar_size', self::DEFAULT_BAR_SIZE);
        $topScrollbar = (int) $this->configModel->get('shrink_vertically_top_scrollbar', 1);
        $auto = (int) $this->configModel->get('shrink_vertically_auto', 0);

        $this->response->html($this->helper->layout->config('shrinkVertically:config/show', array(
            'title' => t('Settings').' &gt; '.t('Shrink Vertically'),
            'values' => array(
                'shrink_vertically_offset' => $offset,
                'shrink_vertically_bar_size' => $barSize,
                'shrink_vertically_top_scrollbar' => $topScrollbar,
                'shrink_vertically_auto' => $auto,
            ),
            'errors' => array(),
        )));
    }

    public function save()
    {
        $values = $this->request->getValues();

        // In auto mode the offset input is disabled client-side, so the browser does not submit it.
        // Fall back to the stored value (not the default) so enabling auto never wipes the manual offset.
        $offset = isset($values['shrink_vertically_offset'])
            ? (int) $values['shrink_vertically_offset']
            : (int) $this->configModel->get('shrink_vertically_offset', self::DEFAULT_OFFSET);
        $offset = max(self::MIN_OFFSET, min(self::MAX_OFFSET, $offset));

        $barSize = isset($values['shrink_vertically_bar_size']) ? (int) $values['shrink_vertically_bar_size'] : self::DEFAULT_BAR_SIZE;
        $barSize = max(self::MIN_BAR_SIZE, min(self::MAX_BAR_SIZE, $barSize));

        $topScrollbar = isset($values['shrink_vertically_top_scrollbar']) ? 1 : 0;
        $auto = isset($values['shrink_vertically_auto']) ? 1 : 0;

        if ($this->configModel->save(array(
            'shrink_vertically_offset' => $offset,
            'shrink_vertically_bar_size' => $barSize,
            'shrink_vertically_top_scrollbar' => $topScrollbar,
            'shrink_vertically_auto' => $auto,
        ))) {
            $this->flash->success(t('Settings saved successfully.'));
        } else {
            $this->flash->failure(t('Unable to save your settings.'));
        }

        $this->response->redirect($this->helper->url->to('ConfigController', 'show', array('plugin' => 'ShrinkVertically')));
    }
}