<?php
/**
 * @copyright Copyright (C) 2020, Friendica
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 */

namespace Friendica\Module\Settings;

use Friendica\Core\Hook;
use Friendica\Core\Renderer;
use Friendica\Core\Session;
use Friendica\Core\Theme;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Module\BaseSettings;
use Friendica\Network\HTTPException;
use Friendica\Util\Strings;

/**
 * Module to update user settings
 */
class Display extends BaseSettings
{
	public static function post(array $parameters = [])
	{
		if (!local_user() || !empty(DI::app()->user['uid']) && DI::app()->user['uid'] != local_user()) {
			throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
		}

		self::checkFormSecurityTokenRedirectOnError('/settings/display', 'settings_display');

		$theme              = !empty($_POST['theme'])              ? Strings::escapeTags(trim($_POST['theme']))        : DI::app()->user['theme'];
		$mobile_theme       = !empty($_POST['mobile_theme'])       ? Strings::escapeTags(trim($_POST['mobile_theme'])) : '';
		$nosmile            = !empty($_POST['nosmile'])            ? intval($_POST['nosmile'])            : 0;
		$first_day_of_week  = !empty($_POST['first_day_of_week'])  ? intval($_POST['first_day_of_week'])  : 0;
		$infinite_scroll    = !empty($_POST['infinite_scroll'])    ? intval($_POST['infinite_scroll'])    : 0;
		$no_auto_update     = !empty($_POST['no_auto_update'])     ? intval($_POST['no_auto_update'])     : 0;
		$no_smart_threading = !empty($_POST['no_smart_threading']) ? intval($_POST['no_smart_threading']) : 0;
		$hide_dislike       = !empty($_POST['hide_dislike'])       ? intval($_POST['hide_dislike'])       : 0;
		$browser_update     = !empty($_POST['browser_update'])     ? intval($_POST['browser_update'])     : 0;
		if ($browser_update != -1) {
			$browser_update = $browser_update * 1000;
			if ($browser_update < 10000) {
				$browser_update = 10000;
			}
		}

		$itemspage_network = !empty($_POST['itemspage_network']) ?
			intval($_POST['itemspage_network']) :
			DI::config()->get('system', 'itemspage_network');
		if ($itemspage_network > 100) {
			$itemspage_network = 100;
		}
		$itemspage_mobile_network = !empty($_POST['itemspage_mobile_network']) ?
			intval($_POST['itemspage_mobile_network']) :
			DI::config()->get('system', 'itemspage_network_mobile');
		if ($itemspage_mobile_network > 100) {
			$itemspage_mobile_network = 100;
		}

		if ($mobile_theme !== '') {
			DI::pConfig()->set(local_user(), 'system', 'mobile_theme', $mobile_theme);
		}

		DI::pConfig()->set(local_user(), 'system', 'itemspage_network'       , $itemspage_network);
		DI::pConfig()->set(local_user(), 'system', 'itemspage_mobile_network', $itemspage_mobile_network);
		DI::pConfig()->set(local_user(), 'system', 'update_interval'         , $browser_update);
		DI::pConfig()->set(local_user(), 'system', 'no_auto_update'          , $no_auto_update);
		DI::pConfig()->set(local_user(), 'system', 'no_smilies'              , $nosmile);
		DI::pConfig()->set(local_user(), 'system', 'infinite_scroll'         , $infinite_scroll);
		DI::pConfig()->set(local_user(), 'system', 'no_smart_threading'      , $no_smart_threading);
		DI::pConfig()->set(local_user(), 'system', 'hide_dislike'            , $hide_dislike);
		DI::pConfig()->set(local_user(), 'system', 'first_day_of_week'       , $first_day_of_week);

		if (in_array($theme, Theme::getAllowedList())) {
			if ($theme == DI::app()->user['theme']) {
				// call theme_post only if theme has not been changed
				if (($themeconfigfile = Theme::getConfigFile($theme)) !== null) {
					require_once $themeconfigfile;
					theme_post(DI::app());
				}
			} else {
				DBA::update('user', ['theme' => $theme], ['uid' => local_user()]);
			}
		} else {
			notice(DI::l10n()->t('The theme you chose isn\'t available.'));
		}

		Hook::callAll('display_settings_post', $_POST);

		DI::baseUrl()->redirect('settings/display');
	}

	public static function content(array $parameters = [])
	{
		parent::content($parameters);

		if (!local_user()) {
			throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
		}

		$default_theme = DI::config()->get('system', 'theme');
		if (!$default_theme) {
			$default_theme = 'default';
		}

		$default_mobile_theme = DI::config()->get('system', 'mobile-theme');
		if (!$default_mobile_theme) {
			$default_mobile_theme = 'none';
		}

		$allowed_themes = Theme::getAllowedList();

		$themes = [];
		$mobile_themes = ["---" => DI::l10n()->t('No special theme for mobile devices')];
		foreach ($allowed_themes as $theme) {
			$is_experimental = file_exists('view/theme/' . $theme . '/experimental');
			$is_unsupported  = file_exists('view/theme/' . $theme . '/unsupported');
			$is_mobile       = file_exists('view/theme/' . $theme . '/mobile');
			if (!$is_experimental || (DI::config()->get('experimentals', 'exp_themes') || is_null(DI::config()->get('experimentals', 'exp_themes')))) {
				$theme_name = ucfirst($theme);
				if ($is_unsupported) {
					$theme_name = DI::l10n()->t('%s - (Unsupported)', $theme_name);
				} elseif ($is_experimental) {
					$theme_name = DI::l10n()->t('%s - (Experimental)', $theme_name);
				}

				if ($is_mobile) {
					$mobile_themes[$theme] = $theme_name;
				} else {
					$themes[$theme] = $theme_name;
				}
			}
		}

		$theme_selected        = DI::app()->user['theme'] ?: $default_theme;
		$mobile_theme_selected = Session::get('mobile-theme', $default_mobile_theme);

		$itemspage_network = intval(DI::pConfig()->get(local_user(), 'system', 'itemspage_network'));
		$itemspage_network = (($itemspage_network > 0 && $itemspage_network < 101) ? $itemspage_network : DI::config()->get('system', 'itemspage_network'));
		$itemspage_mobile_network = intval(DI::pConfig()->get(local_user(), 'system', 'itemspage_mobile_network'));
		$itemspage_mobile_network = (($itemspage_mobile_network > 0 && $itemspage_mobile_network < 101) ? $itemspage_mobile_network : DI::config()->get('system', 'itemspage_network_mobile'));

		$browser_update = intval(DI::pConfig()->get(local_user(), 'system', 'update_interval'));
		if (intval($browser_update) != -1) {
			$browser_update = (($browser_update == 0) ? 40 : $browser_update / 1000); // default if not set: 40 seconds
		}

		$no_auto_update     = DI::pConfig()->get(local_user(), 'system', 'no_auto_update', 0);
		$nosmile            = DI::pConfig()->get(local_user(), 'system', 'no_smilies', 0);
		$infinite_scroll    = DI::pConfig()->get(local_user(), 'system', 'infinite_scroll', 0);
		$no_smart_threading = DI::pConfig()->get(local_user(), 'system', 'no_smart_threading', 0);
		$hide_dislike       = DI::pConfig()->get(local_user(), 'system', 'hide_dislike', 0);

		$first_day_of_week = DI::pConfig()->get(local_user(), 'system', 'first_day_of_week', 0);
		$weekdays = [0 => DI::l10n()->t("Sunday"), 1 => DI::l10n()->t("Monday")];

		$theme_config = '';
		if ($themeconfigfile = Theme::getConfigFile($theme_selected)) {
			require_once $themeconfigfile;
			$theme_config = theme_content(DI::app());
		}

		$tpl = Renderer::getMarkupTemplate('settings/display.tpl');
		$o = Renderer::replaceMacros($tpl, [
			'$ptitle'         => DI::l10n()->t('Display Settings'),
			'$submit'         => DI::l10n()->t('Save Settings'),
			'$d_tset'         => DI::l10n()->t('General Theme Settings'),
			'$d_ctset'        => DI::l10n()->t('Custom Theme Settings'),
			'$d_cset'         => DI::l10n()->t('Content Settings'),
			'$stitle'         => DI::l10n()->t('Theme settings'),
			'$calendar_title' => DI::l10n()->t('Calendar'),

			'$form_security_token' => self::getFormSecurityToken('settings_display'),
			'$baseurl' => DI::baseUrl()->get(true),
			'$uid'     => local_user(),

			'$theme'	    => ['theme', DI::l10n()->t('Display Theme:'), $theme_selected, '', $themes, true],
			'$mobile_theme'	=> ['mobile_theme', DI::l10n()->t('Mobile Theme:'), $mobile_theme_selected, '', $mobile_themes, false],
			'$theme_config' => $theme_config,

			'$itemspage_network'        => ['itemspage_network'       , DI::l10n()->t('Number of items to display per page:'), $itemspage_network, DI::l10n()->t('Maximum of 100 items')],
			'$itemspage_mobile_network' => ['itemspage_mobile_network', DI::l10n()->t('Number of items to display per page when viewed from mobile device:'), $itemspage_mobile_network, DI::l10n()->t('Maximum of 100 items')],
			'$ajaxint'                  => ['browser_update'          , DI::l10n()->t('Update browser every xx seconds'), $browser_update, DI::l10n()->t('Minimum of 10 seconds. Enter -1 to disable it.')],
			'$no_auto_update'           => ['no_auto_update'          , DI::l10n()->t('Automatic updates only at the top of the network page'), $no_auto_update, DI::l10n()->t('When disabled, the network page is updated all the time, which could be confusing while reading.')],
			'$nosmile'	                => ['nosmile'                 , DI::l10n()->t('Don\'t show emoticons'), $nosmile, DI::l10n()->t('Normally emoticons are replaced with matching symbols. This setting disables this behaviour.')],
			'$infinite_scroll'          => ['infinite_scroll'         , DI::l10n()->t('Infinite scroll'), $infinite_scroll, DI::l10n()->t('Automatic fetch new items when reaching the page end.')],
			'$no_smart_threading'       => ['no_smart_threading'      , DI::l10n()->t('Disable Smart Threading'), $no_smart_threading, DI::l10n()->t('Disable the automatic suppression of extraneous thread indentation.')],
			'$hide_dislike'             => ['hide_dislike'            , DI::l10n()->t('Hide the Dislike feature'), $hide_dislike, DI::l10n()->t('Hides the Dislike button and dislike reactions on posts and comments.')],

			'$first_day_of_week' => ['first_day_of_week', DI::l10n()->t('Beginning of week:'), $first_day_of_week, '', $weekdays, false],
		]);

		return $o;
	}
}