<?php
// Make sure this file is only run from within the WordPress context.
defined( 'ABSPATH' ) || exit;


/**
* Antispam_Bee_GUI
*
* @since  2.4
*/

class Antispam_Bee_GUI extends Antispam_Bee {


	/**
	* Save the GUI
	*
	* @since   0.1
	* @change  2.7.0
	*/

	public static function save_changes()
	{
		// No POST?
		if ( empty($_POST) ) {
			wp_die(esc_html__('Cheatin&#8217; uh?', 'antispam-bee'));
		}

		// Capability check
		if ( ! current_user_can('manage_options') ) {
			wp_die(esc_html__('Cheatin&#8217; uh?', 'antispam-bee'));
		}

		// Check referer
		check_admin_referer('_antispam_bee__settings_nonce');

		// Determine options
		$selected_languages_raw = wp_unslash( self::get_key($_POST, 'ab_translate_lang' ) );
		if(!is_array($selected_languages_raw)) {
			$selected_languages_raw = [];
		}
		$selected_languages = [];
		$lang               = self::get_allowed_translate_languages();
		$lang               = array_keys( $lang );
		foreach ( $selected_languages_raw as $value ) {
			if ( ! in_array( $value, $lang, true ) ) {
				continue;
			}
			$selected_languages[] = $value;
		}
		$options = array(
			'flag_spam' 		=> (int)(!empty($_POST['ab_flag_spam'])),
			'email_notify' 		=> (int)(!empty($_POST['ab_email_notify'])),
			'cronjob_enable' 	=> (int)(!empty($_POST['ab_cronjob_enable'])),
			'cronjob_interval'	=> (int)self::get_key($_POST, 'ab_cronjob_interval'),

			'no_notice' 		=> (int)(!empty($_POST['ab_no_notice'])),

			'dashboard_count' 	=> (int)(!empty($_POST['ab_dashboard_count'])),
			'dashboard_chart' 	=> (int)(!empty($_POST['ab_dashboard_chart'])),
			'advanced_check' 	=> (int)(!empty($_POST['ab_advanced_check'])),
			'regexp_check' 		=> (int)(!empty($_POST['ab_regexp_check'])),
			'spam_ip' 			=> (int)(!empty($_POST['ab_spam_ip'])),
			'already_commented'	=> (int)(!empty($_POST['ab_already_commented'])),
			'time_check'		=> (int)(!empty($_POST['ab_time_check'])),
			'always_allowed' 	=> (int)(!empty($_POST['ab_always_allowed'])),

			'ignore_pings' 		=> (int)(!empty($_POST['ab_ignore_pings'])),
			'ignore_filter' 	=> (int)(!empty($_POST['ab_ignore_filter'])),
			'ignore_type' 		=> (int)self::get_key($_POST, 'ab_ignore_type'),

			'reasons_enable' 	=> (int)(!empty($_POST['ab_reasons_enable'])),
			'ignore_reasons' 	=> (array)self::get_key($_POST, 'ab_ignore_reasons'),

			'bbcode_check'		=> (int)(!empty($_POST['ab_bbcode_check'])),
			'gravatar_check'	=> (int)(!empty($_POST['ab_gravatar_check'])),
			'country_code' 		=> (int)(!empty($_POST['ab_country_code'])),
			'country_black'		=> sanitize_text_field( wp_unslash( self::get_key( $_POST, 'ab_country_black' ) ) ),
			'country_white'		=> sanitize_text_field( wp_unslash( self::get_key( $_POST, 'ab_country_white' ) ) ),

			'translate_api' 	=> (int)(!empty($_POST['ab_translate_api'])),
			'translate_lang'	=> $selected_languages,
		);

		foreach( $options['ignore_reasons'] as $key => $val ) {
			if ( ! isset( self::$defaults['reasons'][ $val ] ) ) {
				unset( $options['ignore_reasons'][ $key ] );
			}
		}

		// No number of days indicated?
		if ( empty($options['cronjob_interval']) ) {
			$options['cronjob_enable'] = 0;
		}

		// Translate API
		if ( empty($options['translate_lang']) ) {
			$options['translate_api'] = 0;
		}

		// List of spam reasons
		if ( empty($options['reasons_enable']) ) {
			$options['ignore_reasons'] = array();
		}

		// Blacklist clean
		if ( !empty($options['country_black']) ) {
			$options['country_black'] = preg_replace(
				'/[^A-Z ,;]/',
				'',
				strtoupper($options['country_black'])
			);
		}

		// Whitelist clean
		if ( !empty($options['country_white']) ) {
			$options['country_white'] = preg_replace(
				'/[^A-Z ,;]/',
				'',
				strtoupper($options['country_white'])
			);
		}

		// Empty lists?
		if ( empty($options['country_black']) && empty($options['country_white']) ) {
			$options['country_code'] = 0;
		}

		// Stop Cron?
		if ( $options['cronjob_enable'] && !self::get_option('cronjob_enable') ) {
			self::init_scheduled_hook();
		} else if ( !$options['cronjob_enable'] && self::get_option('cronjob_enable') ) {
			self::clear_scheduled_hook();
		}

		// Save options
		self::update_options($options);

		// Redirect
		wp_safe_redirect(
			add_query_arg(
				array(
					'updated' => 'true'
				),
				wp_get_referer()
			)
		);

		die();
	}


	/**
	* Generation of a selectbox
	*
	* @since   2.4.5
	* @change  2.4.5
	*
	* @param   string  $name      Name of the Selectbox
	* @param   array   $data      Array with values
	* @param   string  $selected  Selected value
	* @return  string  $html      Generated HTML
	*/

	private static function _build_select($name, $data, $selected)
	{
		// Start HTML
		$html = '<select name="' .$name. '">';

		// Loop options
		foreach( $data as $k => $v) {
			$html .= '<option value="' .esc_attr($k). '" ' .selected($selected, $k, false). '>' .esc_html( $v ). '</option>';
		}

		// Close HTML
		$html .= '</select>';

		return $html;
	}


	/**
	* Display the GUI
	*
	* @since   0.1
	* @change  2.7.0
	*/

	public static function options_page() { ?>
		<div class="wrap" id="ab_main">
			<h2>
				Antispam Bee
			</h2>

			<form action="<?php echo admin_url('admin-post.php') ?>" method="post">
				<input type="hidden" name="action" value="ab_save_changes" />

				<?php wp_nonce_field('_antispam_bee__settings_nonce') ?>

				<?php $options = self::get_options() ?>
				<div class="ab-wrap">
					<!--[if lt IE 9]>
						<p class="browsehappy">
							<a href="http://browsehappy.com">Browse Happy</a>
						</p>
					<![endif]-->

					<div class="ab-column ab-arrow">
						<h3 class="icon">
							<?php esc_html_e( 'Antispam filter', 'antispam-bee' ); ?>
						</h3>
						<h6>
							<?php esc_html_e( 'Filter in the execution order', 'antispam-bee' ); ?>
						</h6>

						<ul>
							<li>
								<input type="checkbox" name="ab_already_commented" id="ab_already_commented" value="1" <?php checked($options['already_commented'], 1) ?> />
								<label for="ab_already_commented">
									<?php esc_html_e( 'Trust approved commenters', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'No review of already commented users', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li>
								<input type="checkbox" name="ab_gravatar_check" id="ab_gravatar_check" value="1" <?php checked($options['gravatar_check'], 1) ?> />
								<label for="ab_gravatar_check">
									<?php esc_html_e( 'Trust commenters with a Gravatar', 'antispam-bee' ); ?>
									<span><?php $link1 = sprintf(
										'<a href="%s" target="_blank" rel="noopener noreferrer">',
											esc_url( __( 'https://github.com/pluginkollektiv/antispam-bee/wiki/en-Documentation#trust-commenters-with-a-gravatar', 'antispam-bee' ),
											       'https' )
										);
									printf(
										/* translators: 1: opening <a> tag with link to documentation. 2: closing </a> tag */
										esc_html__( 'Check if commenter has a Gravatar image. Please note the %1$sprivacy notice%2$s for this option.', 'antispam-bee' ),
										$link1,
										'</a>'
									); ?></span>
								</label>
							</li>

							<li>
								<input type="checkbox" name="ab_time_check" id="ab_time_check" value="1" <?php checked($options['time_check'], 1) ?> />
								<label for="ab_time_check">
									<?php esc_html_e( 'Consider the comment time', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Not recommended when using page caching', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li>
								<input type="checkbox" name="ab_bbcode_check" id="ab_bbcode_check" value="1" <?php checked($options['bbcode_check'], 1) ?> />
								<label for="ab_bbcode_check">
									<?php esc_html_e( 'BBCode is spam', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Review the comment contents for BBCode links', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li>
								<input type="checkbox" name="ab_advanced_check" id="ab_advanced_check" value="1" <?php checked($options['advanced_check'], 1) ?> />
								<label for="ab_advanced_check">
									<?php esc_html_e( 'Validate the ip address of commenters', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Validation of the IP address used', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li>
								<input type="checkbox" name="ab_regexp_check" id="ab_regexp_check" value="1" <?php checked($options['regexp_check'], 1) ?> />
								<label for="ab_regexp_check">
									<?php esc_html_e( 'Use regular expressions', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Predefined and custom patterns by plugin hook', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li>
								<input type="checkbox" name="ab_spam_ip" id="ab_spam_ip" value="1" <?php checked($options['spam_ip'], 1) ?> />
								<label for="ab_spam_ip">
									<?php esc_html_e( 'Look in the local spam database', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Check for spam data on your own blog', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li>
								<input type="checkbox" name="ab_country_code" id="ab_country_code" value="1" <?php checked($options['country_code'], 1) ?> />
								<label for="ab_country_code">
									<?php esc_html_e('Block or allow comments from specific countries', 'antispam-bee') ?>
									<span><?php $link1 = sprintf(
										'<a href="%s" target="_blank" rel="noopener noreferrer">',
											esc_url( __( 'https://github.com/pluginkollektiv/antispam-bee/wiki/en-Documentation#block-comments-from-specific-countries', 'antispam-bee' ),
											       'https' )
										);
									printf(
										/* translators: 1: opening <a> tag with link to documentation. 2: closing </a> tag. */
										esc_html__( 'Filtering the requests depending on country. Please note the %1$sprivacy notice%2$s for this option.', 'antispam-bee' ),
										$link1, '</a>'
									); ?></span>
								</label>

								<ul>
									<?php $iso_codes_link = sprintf(
										'<a href="%s" target="_blank" rel="noopener noreferrer">',
										esc_url( __( 'https://www.iso.org/iso/country_names_and_code_elements', 'antispam-bee' ),
											'https' )
										); ?>
									<li>
										<textarea name="ab_country_black" id="ab_country_black" class="ab-medium-field code" placeholder="<?php esc_attr_e( 'e.g. BF, SG, YE', 'antispam-bee' ); ?>"><?php echo esc_attr($options['country_black']); ?></textarea>
										<label for="ab_country_black">
											<span><?php
												printf(
													/* translators: 1: opening <a> tag with link to ISO codes reference. 2: closing </a> tag. */
													esc_html__( 'Blacklist  %1$sISO Codes%2$s for this option.', 'antispam-bee' ),
													$iso_codes_link,
													'</a>' );
											?></span>
										</label>
									</li>
									<li>
										<textarea name="ab_country_white" id="ab_country_white" class="ab-medium-field code" placeholder="<?php esc_attr_e( 'e.g. BF, SG, YE', 'antispam-bee' ); ?>"><?php echo esc_attr($options['country_white']); ?></textarea>
										<label for="ab_country_white">
											<span><?php
												printf(
													/* translators: 1: opening <a> tag with link to ISO codes reference. 2: closing </a> tag. */
													esc_html__( 'Whitelist  %1$sISO Codes%2$s for this option.', 'antispam-bee' ),
													$iso_codes_link,
													'</a>' );
											?></span>
										</label>
									</li>
								</ul>
							</li>

							<li>
								<input type="checkbox" name="ab_translate_api" id="ab_translate_api" value="1" <?php checked($options['translate_api'], 1) ?> />
								<label for="ab_translate_api">
									<?php esc_html_e( 'Allow comments only in certain language', 'antispam-bee' ) ?>
									<span><?php
										$link1 = sprintf(
											'<a href="%s" target="_blank" rel="noopener noreferrer">',
											esc_url( __( 'https://github.com/pluginkollektiv/antispam-bee/wiki/en-Documentation#allow-comments-only-in-certain-language', 'antispam-bee' ),
												'https' )
										);

										printf(
											/* translators: 1: opening <a> tag with link to documentation. 2: closing </a> tag. */
											esc_html__( 'Detect and approve only the specified language. Please note the %1$sprivacy notice%2$s for this option.', 'antispam-bee' ),
											$link1,
											'</a>' );
										?></span>
								</label>

								<ul>
									<li>
										<select multiple name="ab_translate_lang[]">
											<?php
											$lang = self::get_allowed_translate_languages();
											$selected_languages = (array) $options['translate_lang'];
											foreach( $lang as $k => $v ) { ?>
												<option <?php echo in_array( $k, $selected_languages, true ) ? 'selected="selected"' : ''; ?> value="<?php echo esc_attr( $k ); ?>"><?php echo esc_html( $v ); ?></option>
											<?php } ?>
										</select>
										<label for="ab_translate_lang">
											<?php esc_html_e('Language', 'antispam-bee') ?>
										</label>
									</li>
								</ul>
							</li>
						</ul>
					</div>


					<div class="ab-column ab-join">
						<h3 class="icon advanced">
							<?php esc_html_e( 'Advanced', 'antispam-bee' ); ?>
						</h3>
						<h6>
							<?php esc_html_e( 'Other antispam tools', 'antispam-bee' ); ?>
						</h6>

						<ul>
							<li>
								<input type="checkbox" name="ab_flag_spam" id="ab_flag_spam" value="1" <?php checked($options['flag_spam'], 1) ?> />
								<label for="ab_flag_spam">
									<?php esc_html_e( 'Mark as spam, do not delete', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Keep the spam in my blog.', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li class="ab_flag_spam_child">
								<input type="checkbox" name="ab_email_notify" id="ab_email_notify" value="1" <?php checked($options['email_notify'], 1) ?> />
								<label for="ab_email_notify">
									<?php esc_html_e( 'Spam-Notification by email', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Notify admins by e-mail about incoming spam', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li class="ab_flag_spam_child">
								<input type="checkbox" name="ab_no_notice" id="ab_no_notice" value="1" <?php checked($options['no_notice'], 1) ?> />
								<label for="ab_no_notice">
									<?php esc_html_e( 'Do not save the spam reason', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Spam reason as a table column in the spam overview', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li class="ab_flag_spam_child">
								<input type="checkbox" name="ab_cronjob_enable" id="ab_cronjob_enable" value="1" <?php checked($options['cronjob_enable'], 1) ?> />
								<label for="ab_cronjob_enable">
									<?php echo sprintf(
										esc_html__( 'Delete existing spam after %s days', 'antispam-bee' ),
										'<input type="number" min="0" name="ab_cronjob_interval" value="' .esc_attr($options['cronjob_interval']). '" class="ab-mini-field" />'
									) ?>
									<span><?php esc_html_e( 'Cleaning up the database from old entries', 'antispam-bee' ) ?></span>
								</label>
							</li>

							<li class="ab_flag_spam_child">
								<input type="checkbox" name="ab_ignore_filter" id="ab_ignore_filter" value="1" <?php checked($options['ignore_filter'], 1) ?> />
								<label for="ab_ignore_filter">
									<?php echo sprintf(
										esc_html__( 'Limit approval to %s', 'antispam-bee' ),
										self::_build_select(
											'ab_ignore_type',
											array(
												1 => esc_attr__( 'Comments', 'antispam-bee' ),
												2 => esc_attr__( 'Pings', 'antispam-bee' )
											),
											$options['ignore_type']
										)
									); ?>
									<span><?php esc_html_e( 'Other types of spam will be deleted immediately', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li class="ab_flag_spam_child">
								<input type="checkbox" name="ab_reasons_enable" id="ab_reasons_enable" value="1" <?php checked($options['reasons_enable'], 1) ?> />
								<label for="ab_reasons_enable">
									<?php esc_html_e( 'Delete comments by spam reasons', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'For multiple selections press Ctrl/CMD', 'antispam-bee' ); ?></span>
								</label>

								<ul>
									<li>
										<select name="ab_ignore_reasons[]" id="ab_ignore_reasons" size="2" multiple>
											<?php foreach ( self::$defaults['reasons'] as $k => $v ) { ?>
												<option <?php selected(in_array($k, $options['ignore_reasons']), true); ?> value="<?php echo $k ?>"><?php esc_html_e($v, 'antispam-bee') ?></option>
											<?php } ?>
										</select>
										<label for="ab_ignore_reasons">
											<?php esc_html_e( 'Spam Reason', 'antispam-bee' ); ?>
										</label>
									</li>
								</ul>
							</li>
						</ul>
					</div>


					<div class="ab-column ab-diff">
						<h3 class="icon more">
							<?php esc_html_e( 'More', 'antispam-bee' ); ?>
						</h3>
						<h6>
							<?php esc_html_e( 'Various options', 'antispam-bee' ); ?>
						</h6>

						<ul>
							<li>
								<input type="checkbox" name="ab_dashboard_chart" id="ab_dashboard_chart" value="1" <?php checked($options['dashboard_chart'], 1) ?> />
								<label for="ab_dashboard_chart">
									<?php esc_html_e( 'Generate statistics as a dashboard widget', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Daily updates of spam detection rate', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li>
								<input type="checkbox" name="ab_dashboard_count" id="ab_dashboard_count" value="1" <?php checked($options['dashboard_count'], 1) ?> />
								<label for="ab_dashboard_count">
									<?php esc_html_e( 'Spam counter on the dashboard', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Amount of identified spam comments', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li>
								<input type="checkbox" name="ab_ignore_pings" id="ab_ignore_pings" value="1" <?php checked($options['ignore_pings'], 1) ?> />
								<label for="ab_ignore_pings">
									<?php esc_html_e( 'Do not check trackbacks / pingbacks', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'No spam check for link notifications', 'antispam-bee' ); ?></span>
								</label>
							</li>

							<li>
								<input type="checkbox" name="ab_always_allowed" id="ab_always_allowed" value="1" <?php checked($options['always_allowed'], 1) ?> />
								<label for="ab_always_allowed">
									<?php esc_html_e( 'Comment form used outside of posts', 'antispam-bee' ); ?>
									<span><?php esc_html_e( 'Check for comment forms on archive pages', 'antispam-bee' ); ?></span>
								</label>
							</li>
						</ul>
					</div>

					<div class="ab-column ab-column--submit-service">
						<p>
							<a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=TD4AMD2D8EMZW" target="_blank" rel="noopener noreferrer"><?php esc_html_e( 'Donate', 'antispam-bee' ); ?></a>
						</p>
						<p>
							<a href="<?php esc_html_e( 'https://wordpress.org/plugins/antispam-bee/faq/', 'antispam-bee' ); ?>" target="_blank" rel="noopener noreferrer"><?php esc_html_e( 'FAQ', 'antispam-bee' ); ?></a>
						</p>
						<p>
							<a href="https://github.com/pluginkollektiv/antispam-bee/wiki/" target="_blank" rel="noopener noreferrer"><?php esc_html_e( 'Manual', 'antispam-bee' ); ?></a>
						</p>
						<p>
							<a href="https://wordpress.org/support/plugin/antispam-bee" target="_blank" rel="noopener noreferrer"><?php esc_html_e( 'Support', 'antispam-bee' ); ?></a>
						</p>

						<input type="submit" class="button button-primary" value="<?php esc_html_e( 'Save Changes', 'antispam-bee' ); ?>" />
					</div>
				</div>
			</form>
		</div>
	<?php }

	/**
	 * Get the languages, which are selectable to restrict the comment language to.
	 *
	 * @since 2.7.1
	 * @return array $lang
	 */
	private static function get_allowed_translate_languages() {

		$lang = array(
			'de' => __( 'German', 'antispam-bee' ),
			'en' => __( 'English', 'antispam-bee' ),
			'fr' => __( 'French', 'antispam-bee' ),
			'it' => __( 'Italian', 'antispam-bee' ),
			'es' => __( 'Spanish', 'antispam-bee' ),
		);

		/**
		 * Filter the possible languages for the language spam test
		 *
		 * @since 2.7.1
		 * @param (array) $lang The languages
		 * @return (array)
		 */
		return apply_filters( 'ab_get_allowed_translate_languages', $lang );
	}
}