<?php
/**
 * @package wpml-core
 * @used-by Sitepress::ajax_setup
 */
global $wpdb, $sitepress, $sitepress_settings, $wp_rewrite;
/** @var SitePress $this */

$request = filter_input( INPUT_POST, 'icl_ajx_action' );
$request = $request ? $request : filter_input( INPUT_GET, 'icl_ajx_action' );
switch ( $request ) {
	case 'health_check':
		icl_set_setting( 'ajx_health_checked', true, true );
		exit;
	case 'get_browser_language':
		$http_accept_language            = filter_var( $_SERVER['HTTP_ACCEPT_LANGUAGE'], FILTER_SANITIZE_SPECIAL_CHARS );
		$accepted_languages              = explode( ';', $http_accept_language );
		$default_accepted_language       = $accepted_languages[0];
		$default_accepted_language_codes = explode( ',', $default_accepted_language );
		wp_send_json_success( $default_accepted_language_codes );
}

$request = wpml_get_authenticated_action();

$iclsettings      = $this->get_settings();
$default_language = $this->get_default_language();

switch ( $request ) {
	case 'registration_form_submit':

		$ret['error']   = '';
		$setup_instance = wpml_get_setup_instance();
		if ( $_POST['button_action'] == 'finish' ) {
			$setup_instance->finish_installation();
		}

		if ( $_POST['button_action'] == 'later' ) {
			//success
			$ret['success'] = sprintf( __( 'WPML will work on your site, but you will not receive updates. WPML updates are essential for keeping your site running smoothly and secure. To receive automated updates, you need to complete the registration, in the %splugins admin%s page.', 'sitepress' ),
				'<a href="' . admin_url( 'plugin-install.php?tab=commercial' ) . '">', '</a>' );
		} else {
			if ( empty( $_POST['installer_site_key'] ) ) {
				$ret['error'] = __( 'Missing site key.' );
			} else {
				$site_key = $_POST['installer_site_key'];
				if ( class_exists( 'WP_Installer' ) ) {
					$args['repository_id'] = 'wpml';
					$args['nonce']         = wp_create_nonce( 'save_site_key_' . $args['repository_id'] );
					$args['site_key']      = $site_key;
					$args['return']        = 1;
					$r                     = WP_Installer()->save_site_key( $args );
					if ( ! empty( $r['error'] ) ) {
						$ret['error'] = $r['error'];
					} else {
						//success
						$ret['success'] = __( 'Thank you for registering WPML on this site. You will receive automatic updates when new versions are available.', 'sitepress' );
					}
				}
				$setup_instance->store_site_key( $site_key );
			}
		}

		echo json_encode( $ret );
		break;
	case 'recommendations_form_submit':
		$setup_instance = wpml_get_setup_instance();
		$ret['error']   = '';
		if ( $_POST['button_action'] == 'finish' ) {
			$setup_instance->finish_installation();
			$ret['success'] = 'installation finished';
		}
		echo json_encode( $ret );
		break;
	case 'icl_admin_language_options':
		$iclsettings['admin_default_language'] = $_POST['icl_admin_default_language'];
		$this->save_settings( $iclsettings );
		echo 1;
		break;
	case 'icl_page_sync_options':
		$iclsettings['sync_page_ordering']          = @intval( $_POST['icl_sync_page_ordering'] );
		$iclsettings['sync_page_parent']            = @intval( $_POST['icl_sync_page_parent'] );
		$iclsettings['sync_page_template']          = @intval( $_POST['icl_sync_page_template'] );
		$iclsettings['sync_comment_status']         = @intval( $_POST['icl_sync_comment_status'] );
		$iclsettings['sync_ping_status']            = @intval( $_POST['icl_sync_ping_status'] );
		$iclsettings['sync_sticky_flag']            = @intval( $_POST['icl_sync_sticky_flag'] );
		$iclsettings['sync_password']               = @intval( $_POST['icl_sync_password'] );
		$iclsettings['sync_private_flag']           = @intval( $_POST['icl_sync_private_flag'] );
		$iclsettings['sync_post_format']            = @intval( $_POST['icl_sync_post_format'] );
		$iclsettings['sync_delete']                 = @intval( $_POST['icl_sync_delete'] );
		$iclsettings['sync_delete_tax']             = @intval( $_POST['icl_sync_delete_tax'] );
		$iclsettings['sync_post_taxonomies']        = @intval( $_POST['icl_sync_post_taxonomies'] );
		$iclsettings['sync_post_date']              = @intval( $_POST['icl_sync_post_date'] );
		$iclsettings['sync_comments_on_duplicates'] = @intval( $_POST['icl_sync_comments_on_duplicates'] );
		$this->save_settings( $iclsettings );

		$wpml_page_builder_options = new WPML_Page_Builder_Settings();

		if ( array_key_exists( 'wpml_pb_translate_raw_html', $_POST ) ) {
			$wpml_page_builder_options->set_raw_html_translatable(
				filter_var( $_POST['wpml_pb_translate_raw_html'], FILTER_VALIDATE_INT )
			);
		} else {
			$wpml_page_builder_options->set_raw_html_translatable( 0 );
		}

		$wpml_page_builder_options->save();

		echo 1;
		break;
	case 'icl_login_page_translation':
		update_option(
			\WPML\UrlHandling\WPLoginUrlConverter::SETTINGS_KEY,
			filter_input( INPUT_POST, 'login_page_translation', FILTER_VALIDATE_INT )
		);
		if ( ! function_exists( 'save_mod_rewrite_rules' ) ) {
			require_once ABSPATH . 'wp-admin/includes/misc.php';
		}
		$wp_rewrite->rewrite_rules();
		save_mod_rewrite_rules();
		$wp_rewrite->flush_rules( false );
		echo 1;
		break;
	case 'language_domains':
		$language_domains_helper = new WPML_Lang_Domains_Box( $this );
		echo $language_domains_helper->render();
		break;
	case 'dismiss_help':
		icl_set_setting( 'dont_show_help_admin_notice', true );
		icl_save_settings();
		break;
	case 'dismiss_page_estimate_hint':
		icl_set_setting( 'dismiss_page_estimate_hint', ! icl_get_setting( 'dismiss_page_estimate_hint' ) );
		icl_save_settings();
		break;
	case 'dismiss_upgrade_notice':
		icl_set_setting( 'hide_upgrade_notice', implode( '.', array_slice( explode( '.', ICL_SITEPRESS_VERSION ), 0, 3 ) ) );
		icl_save_settings();
		break;
	case 'setup_got_to_step1':
		$setup_instance = wpml_get_setup_instance();
		$setup_instance->go_to_setup1();
		break;
	case 'setup_got_to_step2':
		icl_set_setting( 'setup_wizard_step', 2 );
		icl_save_settings();
		break;
	case 'setup_got_to_step3':
		icl_set_setting( 'setup_wizard_step', 3 );
		icl_save_settings();
		break;
	case 'setup_got_to_step5':
		icl_set_setting( 'setup_wizard_step', 5 );
		icl_save_settings();
		break;
	case 'setup_got_to_step6':
		icl_set_setting( 'setup_wizard_step', 6 );
		icl_save_settings();
		break;
	case 'toggle_show_translations':
		icl_set_setting( 'show_translations_flag', intval( ! icl_get_setting( 'show_translations_flag', false ) ) );
		icl_save_settings();
		break;
	case 'icl_messages':
		//TODO: handle with Translation Proxy
		if ( ! icl_get_setting( 'icl_disable_reminders' ) ) {
			break;
		}
		exit;
	case 'icl_help_links':
		if ( isset( $iclq ) && $iclq ) {
			$links = $iclq->get_help_links();
			$lang  = icl_get_setting( 'admin_default_language' );
			if ( ! isset( $links['resources'][ $lang ] ) ) {
				$lang = 'en';
			}

			if ( isset( $links['resources'][ $lang ] ) ) {
				$output = '<ul>';
				foreach ( $links['resources'][ $lang ]['resource'] as $resource ) {
					if ( isset( $resource['attr'] ) ) {
						$title       = $resource['attr']['title'];
						$url         = $resource['attr']['url'];
						$icon        = $resource['attr']['icon'];
						$icon_width  = $resource['attr']['icon_width'];
						$icon_height = $resource['attr']['icon_height'];
					} else {
						$title       = $resource['title'];
						$url         = $resource['url'];
						$icon        = $resource['icon'];
						$icon_width  = $resource['icon_width'];
						$icon_height = $resource['icon_height'];
					}
					$output .= '<li>';
					if ( $icon ) {
						$output .= '<img style="vertical-align: bottom; padding-right: 5px;" src="' . $icon . '"';
						if ( $icon_width ) {
							$output .= ' width="' . $icon_width . '"';
						}
						if ( $icon_height ) {
							$output .= ' height="' . $icon_height . '"';
						}
						$output .= '>';
					}
					$output .= '<a href="' . $url . '">' . $title . '</a></li>';

				}
				$output .= '</ul>';
				echo '1|' . $output;
			} else {
				echo '0|';
			}
		}
		break;
	case 'icl_show_sidebar':
		icl_set_setting( 'icl_sidebar_minimized', $_POST['state'] == 'hide' ? 1 : 0 );
		icl_save_settings();
		break;
	case 'icl_promote_form':
		icl_set_setting( 'promote_wpml', @intval( $_POST['icl_promote'] ) );
		icl_save_settings();
		echo '1|';
		break;
	case 'save_translator_note':
		update_post_meta( $_POST['post_id'], '_icl_translator_note', $_POST['note'] );
		break;
	case 'icl_st_track_strings':
		foreach ( $_POST['icl_st'] as $k => $v ) {
			$iclsettings['st'][ $k ] = $v;
		}
		if ( array_key_exists( 'st', $iclsettings ) && array_key_exists( 'hl_color', $iclsettings['st'] ) && ! wpml_is_valid_hex_color( $iclsettings['st']['hl_color'] ) ) {
			$iclsettings['st']['hl_color'] = '#FFFF00';
		}
		if ( isset( $iclsettings ) ) {
			$this->save_settings( $iclsettings );
		}

		do_action( 'wpml_st_strings_tracking_option_saved', (int) $_POST['icl_st']['track_strings'] );

		echo 1;
		break;
	case 'icl_st_more_options':
		$iclsettings['st']['translated-users'] = ! empty( $_POST['users'] ) ? array_keys( $_POST['users'] ) : [];
		$this->save_settings( $iclsettings );
		if ( ! empty( $iclsettings['st']['translated-users'] ) ) {
			$sitepress_settings['st']['translated-users'] = $iclsettings['st']['translated-users'];
			icl_st_register_user_strings_all();
		}
		echo 1;
		break;
	case 'icl_hide_languages':
		$iclsettings['hidden_languages'] = empty( $_POST['icl_hidden_languages'] ) ? [] : $_POST['icl_hidden_languages'];
		$this->set_setting( 'hidden_languages', [] ); //reset current value
		$active_languages = $this->get_active_languages();
		if ( ! empty( $iclsettings['hidden_languages'] ) ) {
			if ( 1 == count( $iclsettings['hidden_languages'] ) ) {
				$out = sprintf( __( '%s is currently hidden to visitors.', 'sitepress' ),
					$active_languages[ $iclsettings['hidden_languages'][0] ]['display_name'] );
			} else {
				foreach ( $iclsettings['hidden_languages'] as $l ) {
					$_hlngs[] = $active_languages[ $l ]['display_name'];
				}
				$hlangs = join( ', ', $_hlngs );
				$out    = sprintf( __( '%s are currently hidden to visitors.', 'sitepress' ), $hlangs );
			}
			$out .= ' ' . sprintf( __( 'You can enable its/their display for yourself, in your <a href="%s">profile page</a>.', 'sitepress' ),
					'profile.php#wpml' );
		} else {
			$out = __( 'All languages are currently displayed.', 'sitepress' );
		}
		$this->save_settings( $iclsettings );
		echo '1|' . $out;
		break;
	case 'icl_adjust_ids':
		$iclsettings['auto_adjust_ids'] = @intval( $_POST['icl_adjust_ids'] );
		$this->save_settings( $iclsettings );
		echo '1|';
		break;
	case 'icl_automatic_redirect':
		if ( ! isset( $_POST['icl_remember_language'] ) || $_POST['icl_remember_language'] < 24 ) {
			$_POST['icl_remember_language'] = 24;
		}
		$iclsettings['automatic_redirect'] = @intval( $_POST['icl_automatic_redirect'] );
		$iclsettings['remember_language']  = @intval( $_POST['icl_remember_language'] );
		$this->save_settings( $iclsettings );
		echo '1|';
		break;
	case 'icl_troubleshooting_more_options':
		$iclsettings['troubleshooting_options'] = $_POST['troubleshooting_options'];
		$this->save_settings( $iclsettings );
		echo '1|';
		break;
	case 'reset_languages':
		$setup_instance = wpml_get_setup_instance();
		$setup_instance->reset_language_data();

		$wpml_localization = new WPML_Download_Localization( $sitepress->get_active_languages(), $sitepress->get_default_language() );
		$wpml_localization->download_language_packs();
		$wpml_languages_notices = new WPML_Languages_Notices( wpml_get_admin_notices() );
		$wpml_languages_notices->missing_languages( $wpml_localization->get_not_founds() );
		break;
	case 'icl_support_update_ticket':
		if ( isset( $_POST['ticket'] ) ) {
			$temp = str_replace( 'icl_support_ticket_', '', $_POST['ticket'] );
			$temp = explode( '_', $temp );
			$id   = (int) $temp[0];
			$num  = (int) $temp[1];
			if ( $id && $num ) {
				if ( isset( $iclsettings['icl_support']['tickets'][ $id ] ) ) {
					$iclsettings['icl_support']['tickets'][ $id ]['messages'] = $num;
					$this->save_settings( $iclsettings );
				}
			}
		}
		break;
	case 'icl_custom_tax_sync_options':
		$new_options      = ! empty( $_POST['icl_sync_tax'] ) ? $_POST['icl_sync_tax'] : [];
		$unlocked_options = ! empty( $_POST['icl_sync_tax_unlocked'] ) ? $_POST['icl_sync_tax_unlocked'] : [];
		/** @var WPML_Settings_Helper $settings_helper */
		$settings_helper = wpml_load_settings_helper();
		$settings_helper->update_taxonomy_unlocked_settings( $unlocked_options );
		$settings_helper->update_taxonomy_sync_settings( $new_options );
		echo '1|';
		break;
	case 'icl_custom_posts_sync_options':
		$new_options      = ! empty( $_POST['icl_sync_custom_posts'] ) ? $_POST['icl_sync_custom_posts'] : [];
		$unlocked_options = ! empty( $_POST['icl_sync_custom_posts_unlocked'] ) ? $_POST['icl_sync_custom_posts_unlocked'] : [];
		/** @var WPML_Settings_Helper $settings_helper */
		$settings_helper = wpml_load_settings_helper();
		$settings_helper->update_cpt_unlocked_settings( $unlocked_options );
		$settings_helper->update_cpt_sync_settings( $new_options );
		echo '1|';
		break;
	case 'copy_from_original':
		/*
		 * apply filtering as to add further elements
		 * filters will have to like as such
		 * add_filter('wpml_copy_from_original_fields', 'my_copy_from_original_fields');
		 *
		 * function my_copy_from_original_fields( $elements ) {
		 *  $custom_field = 'editor1';
		 *  $elements[ 'customfields' ][ $custom_fields ] = array(
		 *    'editor_name' => 'custom_editor_1',
		 *    'editor_type' => 'editor',
		 *    'value'       => 'test'
		 *  );
		 *
		 *  $custom_field = 'editor2';
		 *  $elements[ 'customfields' ][ $custom_fields ] = array(
		 *    'editor_name' => 'textbox1',
		 *    'editor_type' => 'text',
		 *    'value'       => 'testtext'
		 *  );
		 *
		 *  return $elements;
		 * }
		 * This filter would result in custom_editor_1 being populated with the value "test"
		 * and the textfield with id #textbox1 to be populated with "testtext".
		 * editor type is always either text when populating general fields or editor when populating
		 * a wp editor. The editor id can be either judged from the arguments used in the wp_editor() call
		 * or from looking at the tinyMCE.Editors object that the custom post type's editor sends to the browser.
		 */
		$content_type = filter_input( INPUT_POST, 'content_type' );
		$excerpt_type = filter_input( INPUT_POST, 'excerpt_type' );
		$trid         = filter_input( INPUT_POST, 'trid' );
		$lang         = filter_input( INPUT_POST, 'lang' );
		echo wp_json_encode( WPML_Post_Edit_Ajax::copy_from_original_fields( $content_type, $excerpt_type, $trid, $lang ) );
		break;
	case 'save_user_preferences':
		$user_preferences = $this->get_user_preferences();
		$this->set_user_preferences( array_merge_recursive( $user_preferences, $_POST['user_preferences'] ) );
		$this->save_user_preferences();
		break;
	case 'wpml_cf_translation_preferences':
		if ( empty( $_POST[ WPML_POST_META_SETTING_INDEX_SINGULAR ] ) ) {
			echo '<span style="color:#FF0000;">'
			     . __( 'Error: No custom field', 'sitepress' ) . '</span>';
			die();
		}
		$_POST[ WPML_POST_META_SETTING_INDEX_SINGULAR ] = @strval( $_POST[ WPML_POST_META_SETTING_INDEX_SINGULAR ] );
		if ( ! isset( $_POST['translate_action'] ) ) {
			echo '<span style="color:#FF0000;">'
			     . __( 'Error: Please provide translation action', 'sitepress' ) . '</span>';
			die();
		}
		$_POST['translate_action'] = @intval( $_POST['translate_action'] );
		if ( defined( 'WPML_TM_VERSION' ) ) {
			global $iclTranslationManagement;
			if ( ! empty( $iclTranslationManagement ) ) {
				$iclTranslationManagement->settings[ WPML_POST_META_SETTING_INDEX_PLURAL ][ $_POST[ WPML_POST_META_SETTING_INDEX_SINGULAR ] ] = $_POST['translate_action'];
				$iclTranslationManagement->save_settings();
				echo '<strong><em>' . __( 'Settings updated', 'sitepress' ) . '</em></strong>';
			} else {
				echo '<span style="color:#FF0000;">'
				     . __( 'Error: WPML Translation Management plugin not initiated', 'sitepress' )
				     . '</span>';
			}
		} else {
			echo '<span style="color:#FF0000;">'
			     . __( 'Error: Please activate WPML Translation Management plugin', 'sitepress' )
			     . '</span>';
		}
		break;
	case 'icl_seo_options':
		$seo = $sitepress->get_setting( 'seo', [] );

		$seo['head_langs']                  = isset( $_POST['icl_seo_head_langs'] ) ? (int) $_POST['icl_seo_head_langs'] : 0;
		$seo['canonicalization_duplicates'] = isset( $_POST['icl_seo_canonicalization_duplicates'] ) ? (int) $_POST['icl_seo_canonicalization_duplicates'] : 0;
		$seo['head_langs_priority']         = isset( $_POST['wpml_seo_head_langs_priority'] ) ? (int) $_POST['wpml_seo_head_langs_priority'] : 1;

		$sitepress->set_setting( 'seo', $seo, true );
		echo '1|';
		break;
	case 'dismiss_object_cache_warning':
		$iclsettings['dismiss_object_cache_warning'] = true;
		$this->save_settings( $iclsettings );
		echo '1|';
		break;
	case 'update_option':
		$iclsettings[ $_REQUEST['option'] ] = $_REQUEST['value'];
		$this->save_settings( $iclsettings );
		break;
	case 'connect_translations':
		$new_trid      = $_POST['new_trid'];
		$post_type     = $_POST['post_type'];
		$post_id       = $_POST['post_id'];
		$set_as_source = $_POST['set_as_source'];
		$element_type  = 'post_' . $post_type;

		$language_details = $sitepress->get_element_language_details( $post_id, $element_type );

		if ( $set_as_source ) {

			$wpdb->update(
				$wpdb->prefix . 'icl_translations',
				[ 'source_language_code' => $language_details->language_code ],
				[ 'trid' => $new_trid, 'element_type' => $element_type ],
				[ '%s' ],
				[ '%d', '%s' ]
			);

			$wpdb->update(
				$wpdb->prefix . 'icl_translations',
				[ 'source_language_code' => null, 'trid' => $new_trid ],
				[ 'element_id' => $post_id, 'element_type' => $element_type ],
				[ '%s', '%d' ],
				[ '%d', '%s' ]
			);

			do_action(
				'wpml_translation_update',
				[
					'type'         => 'update',
					'trid'         => $new_trid,
					'element_type' => $element_type,
					'context'      => 'post',
				]
			);

		} else {
			$original_element_language = $sitepress->get_default_language();
			$trid_elements             = $sitepress->get_element_translations( $new_trid, $element_type );
			if ( $trid_elements ) {
				foreach ( $trid_elements as $trid_element ) {
					if ( $trid_element->original ) {
						$original_element_language = $trid_element->language_code;
						break;
					}
				}
			}

			$wpdb->update(
				$wpdb->prefix . 'icl_translations',
				[ 'source_language_code' => $original_element_language, 'trid' => $new_trid ],
				[ 'element_id' => $post_id, 'element_type' => $element_type ],
				[ '%s', '%d' ],
				[ '%d', '%s' ]
			);


			do_action(
				'wpml_translation_update',
				[
					'type'         => 'update',
					'trid'         => $new_trid,
					'element_id'   => $post_id,
					'element_type' => $element_type,
					'context'      => 'post',
				]
			);

		}
		echo wp_json_encode( true );
		break;
	case 'get_posts_from_trid':
		$trid      = $_POST['trid'];
		$post_type = $_POST['post_type'];

		$translations = $sitepress->get_element_translations( $trid, 'post_' . $post_type );

		$results = [];
		foreach ( $translations as $language_code => $translation ) {
			$post                 = get_post( $translation->element_id );
			$title                = $post->post_title ? $post->post_title : strip_shortcodes( wp_trim_words( $post->post_content, 50 ) );
			$source_language_code = $translation->source_language_code;
			$results[]            = (object) [ 'language'        => $language_code,
			                                   'title'           => $title,
			                                   'source_language' => $source_language_code,
			];
		}
		echo wp_json_encode( $results );
		break;
	case 'get_orphan_posts':
		$trid            = $_POST['trid'];
		$post_type       = $_POST['post_type'];
		$source_language = $_POST['source_language'];
		$results         = $sitepress->get_orphan_translations( $trid, $post_type, $source_language );

		echo wp_json_encode( $results );

		break;
	default:
		if ( function_exists( 'ajax_' . $request ) ) {
			$function_name = 'ajax_' . $request;
			$function_name();
		} else {
			do_action( 'icl_ajx_custom_call', $request, $_REQUEST );
		}
}
exit;
