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<?php
/**
 * Class for Admin Settings
 *
 * @package   PUM
 * @copyright Copyright (c) 2023, Code Atlantic LLC
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Class PUM_Admin_Settings
 */
class PUM_Admin_Settings {

/**
	 * @var array
	 */
	public static $notices = [];

/**
	 *
	 */
	public static function init() {
		add_action( 'admin_notices', [ __CLASS__, 'notices' ] );
		add_action( 'admin_init', [ __CLASS__, 'save' ] );
		// add_action( 'pum_license_deactivated', array( __CLASS__, 'license_deactivated' ) );
		// add_action( 'pum_license_check_failed', array( __CLASS__, 'license_deactivated' ) );
	}

// display default admin notice

/**
	 * Displays any saved admin notices.
	 */
	public static function notices() {

if ( isset( $_GET['success'] ) && get_option( 'pum_settings_admin_notice' ) ) {
			self::$notices[] = [
				'type'    => $_GET['success'] ? 'success' : 'error',
				'message' => get_option( 'pum_settings_admin_notice' ),
			];

delete_option( 'pum_settings_admin_notice' );
		}

if ( ! empty( self::$notices ) ) {
			foreach ( self::$notices as $notice ) { ?>
				<div class="notice notice-<?php echo esc_attr( $notice['type'] ); ?> is-dismissible">
					<p><strong><?php esc_html_e( $notice['message'] ); ?></strong></p>
					<button type="button" class="notice-dismiss">
						<span class="screen-reader-text"><?php _e( 'Dismiss this notice.', 'popup-maker' ); ?></span>
					</button>
				</div>
				<?php
			}
		}
	}

/**
	 * Save settings when needed.
	 */
	public static function save() {
		if ( ! empty( $_POST['pum_settings'] ) && empty( $_POST['pum_license_activate'] ) && empty( $_POST['pum_license_deactivate'] ) ) {

if ( ! isset( $_POST['pum_settings_nonce'] ) || ! wp_verify_nonce( $_POST['pum_settings_nonce'], basename( __FILE__ ) ) ) {
				return;
			}

if ( ! current_user_can( 'manage_options' ) ) {
				return;
			}

$settings = self::sanitize_settings( $_POST['pum_settings'] );

$settings = apply_filters( 'pum_sanitize_settings', $settings );

if ( PUM_Utils_Options::update_all( $settings ) ) {
				self::$notices[] = [
					'type'    => 'success',
					'message' => __( 'Settings saved successfully!', 'popup-maker' ),
				];

do_action( 'pum_save_settings', $settings );
			} else {
				self::$notices[] = [
					'type'    => 'error',
					'message' => __( 'There must have been an error, settings not saved successfully!', 'popup-maker' ),
				];
			}

return;

/**
			 * Process licensing if set.
			 *
			 * // We store the key in wp_options for use by the update & licensing system to keep things cleanly detached.
			 * $old_license = get_option( 'pum_license_key' );
			 *
			 * if ( empty( $settings['pum_license_key'] ) ) {
			 * delete_option( 'pum_license_key' ); // empty key, remove existing license info.
			 * delete_option( 'pum_license' ); // empty key, remove existing license info.
			 * } else if ( $old_license != $settings['pum_license_key'] ) {
			 * update_option( 'pum_license_key', $settings['pum_license_key'] );
			 * delete_option( 'pum_license' ); // new license has been entered, so must reactivate
			 *
			 * // Prevent additional calls to licensing.
			 * if ( empty( $_POST['pum_license_activate'] ) ) {
			 * $message = PUM_Licensing::activate();
			 *
			 * if ( $message !== true && ! empty ( $message ) ) {
			 * self::$notices[] = array(
			 * 'type'    => 'error',
			 * 'message' => $message,
			 * );
			 * } else {
			 * self::$notices[] = array(
			 * 'type'    => 'success',
			 * 'message' => __( 'License activated successfully!', 'popup-maker' ),
			 * );
			 * }
			 * }
			 * }
			 */
		}

}

/**
	 * @param array $settings
	 *
	 * @return array
	 */
	public static function sanitize_settings( $settings = [] ) {

$fields = self::fields();

$fields = PUM_Admin_Helpers::flatten_fields_array( $fields );

foreach ( $fields as $field_id => $field ) {
			switch ( $field['type'] ) {
				case 'checkbox':
					if ( ! isset( $settings[ $field_id ] ) ) {
						$settings[ $field_id ] = false;
					}
					break;
			}
		}

foreach ( $settings as $key => $value ) {
			$field = self::get_field( $key );

if ( $field ) {

// Sanitize every string value.
				if ( is_string( $value ) ) {
					$settings[ $key ] = sanitize_text_field( $value );
				}

switch ( $field['type'] ) {
					default:
						$settings[ $key ] = is_string( $value ) ? trim( $value ) : $value;
						break;

case 'measure':
						$settings[ $key ] .= $settings[ $key . '_unit' ];
						break;

case 'license_key':
						$old = PUM_Utils_Options::get( $key );
						$new = trim( $value );

if ( $old && $old !== $new ) {
							delete_option( str_replace( '_license_key', '_license_active', $key ) );
							call_user_func( $field['options']['activation_callback'] );
						}

$settings[ $key ] = is_string( $value ) ? trim( $value ) : $value;
						// Activate / deactivate license keys maybe?
						break;
				}
			} else {
				// Some custom field types include multiple additional fields that do not need to be saved, strip out any non-whitelisted fields.
				unset( $settings[ $key ] );
			}
		}

return $settings;
	}

/**
	 * @param $id
	 *
	 * @return bool
	 */
	public static function get_field( $id ) {
		$tabs = self::fields();

foreach ( $tabs as $tab => $sections ) {

if ( PUM_Admin_Helpers::is_field( $sections ) ) {
				$sections = [
					'main' => [
						$tab => $sections,
					],
				];
			}

foreach ( $sections as $section => $fields ) {

foreach ( $fields as $key => $args ) {
					if ( $key === $id ) {
						return $args;
					}
				}
			}
		}

return false;
	}

/**
	 * Returns array of pum settings fields.
	 *
	 * @return mixed
	 */
	public static function fields() {

static $fields;

if ( ! isset( $fields ) ) {

$fields = [
				'general' => [
					'main' => [
						'default_theme_id'          => [
							'label'        => __( 'Default Popup Theme', 'popup-maker' ),
							'dynamic_desc' => sprintf( '%1$s<br/><a id="edit_theme_link" href="%3$s">%2$s</a>', __( 'Choose the default theme used for new popups', 'popup-maker' ), __( 'Customize This Theme', 'popup-maker' ), admin_url( 'post.php?action=edit&post={{data.value}}' ) ),
							'type'         => 'select',
							'options'      => pum_is_settings_page() ? PUM_Helpers::popup_theme_selectlist() : null,
							'std'          => pum_get_default_theme_id(),
						],
						'gutenberg_support_enabled' => [
							'label' => __( 'Enable Block Editor Support', 'popup-maker' ),
							'desc'  => __( 'Enable experimental support for using the block editor to edit popups.', 'popup-maker' ),
							'type'  => 'checkbox',
						],
						'google_fonts_api_key'      => [
							'type'  => 'text',
							'label' => __( 'Google Fonts API Key *optional', 'popup-maker' ),
							'desc'  => __( 'Enter your own Google Fonts API key to always get the latest fonts available.', 'popup-maker' ),
						],
						'telemetry'                 => [
							'type'  => 'checkbox',
							'label' => __( 'Allow usage tracking?', 'popup-maker' ),
							'desc'  => sprintf(
								/* translators: 1 & 2 are opening and closing HTML of the link around "Learn more" */
								esc_html__( 'Allow data sharing so that we can receive a little information on how it is used and help us make this plugin better? No user data is sent to our servers. No sensitive data is tracked. %1$sLearn more%2$s', 'popup-maker' ),
								' <a target="_blank" rel="noreferrer noopener"  href="https://docs.wppopupmaker.com/article/528-the-data-the-popup-maker-plugin-collects?utm_campaign=contextual-help&utm_medium=inline-doclink&utm_source=settings-page&utm_content=telemetry-setting">',
								'</a>'
							),
						],
					],
				],
			];

// TODO Remove or move externally of this location later.
			if ( ! ( class_exists( 'PUM_MCI' ) && version_compare( PUM_MCI::$VER, '1.3.0', '<' ) ) ) {
				$fields['subscriptions'] = [
					'main' => apply_filters(
						'pum_newsletter_settings',
						[
							'newsletter_default_provider' => [
								'label'   => __( 'Default Newsletter Provider', 'popup-maker' ),
								'desc'    => __( 'The default mailing provider used for the subscription form.', 'popup-maker' ),
								'type'    => 'select',
								'options' => array_merge(
									PUM_Newsletter_Providers::dropdown_list(),
									[
										'none' => __( 'None', 'popup-maker' ),
									]
								),
							],
							'default_success_message'     => [
								'label' => __( 'Success Message', 'popup-maker' ),
								'desc'  => __( 'Message to show user when successfuly subscribed.', 'popup-maker' ),
								'type'  => 'text',
								'std'   => __( 'You have been subscribed!', 'popup-maker' ),
							],
							'default_empty_email_message' => [
								'label' => __( 'Empty Email Message', 'popup-maker' ),
								'desc'  => __( 'Message to show user when no email is entered.', 'popup-maker' ),
								'type'  => 'text',
								'std'   => __( 'Please enter a valid email.', 'popup-maker' ),
							],
							'default_invalid_email_message' => [
								'label' => __( 'Invalid Email Message', 'popup-maker' ),
								'desc'  => __( 'Message to show user when an invalid email is entered.', 'popup-maker' ),
								'type'  => 'text',
								'std'   => __( 'Email provided is not a valid email address.', 'popup-maker' ),
							],
							'default_error_message'       => [
								'label' => __( 'Error Message', 'popup-maker' ),
								'desc'  => __( 'Message to show user when an error has occurred.', 'popup-maker' ),
								'type'  => 'text',
								'std'   => __( 'Error occurred when subscribing. Please try again.', 'popup-maker' ),
							],
							'default_already_subscribed_message' => [
								'label' => __( 'Already Subscribed Message', 'popup-maker' ),
								'desc'  => __( 'Message to show user who is already subscribed.', 'popup-maker' ),
								'type'  => 'text',
								'std'   => __( 'You are already a subscriber.', 'popup-maker' ),
							],
							'default_consent_required_message' => [
								'label' => __( 'Consent Required Message', 'popup-maker' ),
								'desc'  => __( 'Message to show user who is already subscribed.', 'popup-maker' ),
								'type'  => 'text',
								'std'   => __( 'You must agree to continue.', 'popup-maker' ),
							],
						]
					),
				];
			}

$fields = array_merge(
				$fields,
				[
					'extensions' => [
						'main' => [],
					],
					'licenses'   => [
						'main' => [],
					],
					'privacy'    => [
						'main'  => [
							'disable_popup_open_tracking' => [
								'type'  => 'checkbox',
								'label' => __( 'Disables popup open tracking?', 'popup-maker' ),
								'desc'  => __( 'This will disable the built in analytics functionality.', 'popup-maker' ),
							],
						],
						'forms' => [
							'forms_disclaimer'             => [
								'type'    => 'html',
								'content' => '<strong>' . __( 'Disclaimer', 'popup-maker' ) . ':</strong> ' . __( 'These settings only pertain to usage of the Popup Maker built in subscription form shortcode, not 3rd party form plugins.', 'popup-maker' ),
							],
							'privacy_consent_always_enabled' => [
								'label'   => __( 'Always enable consent field on subscription forms.', 'popup-maker' ),
								'type'    => 'select',
								'options' => [
									'yes' => __( 'Yes', 'popup-maker' ),
									'no'  => __( 'No', 'popup-maker' ),
								],
								'std'     => 'yes',
							],
							'default_privacy_consent_label' => [
								'label'        => __( 'Consent Text', 'popup-maker' ),
								'type'         => 'text',
								'std'          => __( 'Notify me about related content and special offers.', 'popup-maker' ),
								'dependencies' => [
									'privacy_consent_always_enabled' => 'yes',
								],
							],
							'default_privacy_consent_type' => [
								'label'        => __( 'Consent Field Type', 'popup-maker' ),
								'desc'         => __( 'Radio forces the user to make a choice, often resulting in more opt-ins.', 'popup-maker' ),
								'type'         => 'select',
								'options'      => [
									'radio'    => __( 'Radio', 'popup-maker' ),
									'checkbox' => __( 'Checkbox', 'popup-maker' ),
								],
								'std'          => 'radio',
								'dependencies' => [
									'privacy_consent_always_enabled' => 'yes',
								],
							],
							'default_privacy_consent_required' => [
								'label'        => __( 'Consent Required', 'popup-maker' ),
								'type'         => 'checkbox',
								'std'          => pum_get_option( 'default_privacy_consent_required' ),
								'private'      => true,
								'dependencies' => [
									'privacy_consent_always_enabled' => 'yes',
								],
							],
							'default_privacy_consent_radio_layout' => [
								'label'        => __( 'Consent Radio Layout', 'popup-maker' ),
								'type'         => 'select',
								'options'      => [
									'inline'  => __( 'Inline', 'popup-maker' ),
									'stacked' => __( 'Stacked', 'popup-maker' ),
								],
								'std'          => __( 'Yes', 'popup-maker' ),
								'dependencies' => [
									'privacy_consent_always_enabled' => 'yes',
									'default_privacy_consent_type'   => 'radio',
								],
							],
							'default_privacy_consent_yes_label' => [
								'label'        => __( 'Consent Yes Label', 'popup-maker' ),
								'type'         => 'text',
								'std'          => __( 'Yes', 'popup-maker' ),
								'dependencies' => [
									'privacy_consent_always_enabled' => 'yes',
									'default_privacy_consent_type'   => 'radio',
								],
							],
							'default_privacy_consent_no_label' => [
								'label'        => __( 'Consent No Label', 'popup-maker' ),
								'type'         => 'text',
								'std'          => __( 'No', 'popup-maker' ),
								'dependencies' => [
									'privacy_consent_always_enabled' => 'yes',
									'default_privacy_consent_type'   => 'radio',
								],
							],
							'default_privacy_usage_text'   => [
								'label'        => __( 'Consent Usage Text', 'popup-maker' ),
								'desc'         => function_exists( 'get_privacy_policy_url' ) ? sprintf( __( 'You can use %1$s%2$s to insert a link to your privacy policy. To customize the link text use %1$s:Link Text%2$s', 'popup-maker' ), '{{privacy_link', '}}' ) : '',
								'type'         => 'text',
								'std'          => __( 'If you opt in above we use this information send related content, discounts and other special offers.', 'popup-maker' ),
								'dependencies' => [
									'privacy_consent_always_enabled' => 'yes',
								],
							],
						],
					],

'misc'       => [
						'main'   => [

'bypass_adblockers'          => [
								'label' => __( 'Try to bypass ad blockers.', 'popup-maker' ),
								'type'  => 'checkbox',
							],
							'adblock_bypass_url_method'  => [
								'label'        => __( 'Ad blocker: Naming method', 'popup-maker' ),
								'desc'         => __( 'This will help generate unique names for our JavaScript files and the analytics routes.', 'popup-maker' ),
								'type'         => 'select',
								'options'      => [
									'random' => __( 'Randomize Names', 'popup-maker' ),
									'custom' => __( 'Custom Names', 'popup-maker' ),
								],
								'std'          => 'random',
								'dependencies' => [
									'bypass_adblockers' => true,
								],
							],
							'adblock_bypass_custom_filename' => [
								'type'         => 'text',
								'placeholder'  => 'my-awesome-popups',
								'label'        => __( 'Ad blocker: Custom Name', 'popup-maker' ),
								'desc'         => __( 'A custom & recognizable name to use for our assets.', 'popup-maker' ),
								'dependencies' => [
									'bypass_adblockers' => true,
									'adblock_bypass_url_method' => 'custom',
								],
							],
							'adjust_body_padding'        => [
								'type'  => 'checkbox',
								'label' => __( 'Adjust the right padding added to the body when popups are shown with an overlay.', 'popup-maker' ),
								'desc'  => sprintf(
									/* translators: 1 & 2 are opening and closing HTML of the link around "Learn more" */
									esc_html__( 'Use this if your popups "jump" or "shift" when opened. %1$sLearn more%2$s', 'popup-maker' ),
									'<a target="_blank" rel="noreferrer noopener" href="https://docs.wppopupmaker.com/article/314-why-does-my-site-shift-jump-or-skip-when-a-popup-is-triggered?utm_campaign=contextual-help&utm_medium=inline-doclink&utm_source=settings-page&utm_content=adjust-right-padding">',
									'</a>'
								),
							],
							'body_padding_override'      => [
								'type'         => 'text',
								'placeholder'  => '15px',
								'label'        => __( 'Body Padding Override', 'popup-maker' ),
								'dependencies' => [
									'adjust_body_padding' => true,
								],
								'std'          => '15px',
							],
							'disabled_admin_bar'         => [
								'type'  => 'checkbox',
								'label' => __( 'Disable Popups Admin Bar', 'popup-maker' ),
								'desc'  => __( 'This will disable the admin Popups menu item.', 'popup-maker' ),
							],
							'debug_mode'                 => [
								'type'  => 'checkbox',
								'label' => __( 'Enable Debug Mode', 'popup-maker' ),
								'desc'  => __( 'This will turn on multiple debug tools used to quickly find issues.', 'popup-maker' ),
							],
							'enable_easy_modal_compatibility_mode' => [
								'type'  => 'checkbox',
								'label' => __( 'Enable Easy Modal v2 Compatibility Mode', 'popup-maker' ),
								'desc'  => __( 'This will automatically make any eModal classes you have added to your site launch the appropriate Popup after import.', 'popup-maker' ),
							],
							'disable_popup_category_tag' => [
								'type'  => 'checkbox',
								'label' => __( 'Disable categories & tags?', 'popup-maker' ),
								'desc'  => __( 'This will disable the popup tags & categories.', 'popup-maker' ),
							],
							'disable_asset_caching'      => [
								'type'  => 'checkbox',
								'label' => __( 'Disable asset caching.', 'popup-maker' ),
								'desc'  => __( 'By default Popup Maker caches a single JS & CSS file in your Uploads folder. These files include core, extension & user customized styles & scripts in a single set of files.', 'popup-maker' ),
							],
							'disable_shortcode_ui'       => [
								'type'  => 'checkbox',
								'label' => __( 'Disable the Popup Maker shortcode button', 'popup-maker' ),
							],
							'disable_tips'               => [
								'type'  => 'checkbox',
								'label' => __( 'Disable Popup Maker occasionally showing random tips to improve your popups.', 'popup-maker' ),
							],
							'disable_notices'               => [
								'type'  => 'checkbox',
								'label' => __( 'Disable Popup Maker occasionally showing community notices such as security alerts, new features or sales on our extensions.', 'popup-maker' ),
							],
							'complete_uninstall'         => [
								'type'     => 'checkbox',
								'label'    => __( 'Delete all Popup Maker data on deactivation', 'popup-maker' ),
								'desc'     => __( 'Check this to completely uninstall Popup Maker.', 'popup-maker' ),
								'priority' => 1000,
							],
						],
						'assets' => [
							'disable_google_font_loading' => [
								'type'  => 'checkbox',
								'label' => __( "Don't Load Google Fonts", 'popup-maker' ),
								'desc'  => __( 'Check this disable loading of google fonts, useful if the fonts you chose are already loaded with your theme.', 'popup-maker' ),
							],
							'disable_popup_maker_core_styles' => [
								'type'  => 'checkbox',
								'label' => __( 'Don\'t load Popup Maker core stylesheet.', 'popup-maker' ),
								'desc'  => __( 'Check this if you have copied the Popup Maker core styles to your own stylesheet or are using custom styles.', 'popup-maker' ),
							],
							'disable_popup_theme_styles'  => [
								'type'  => 'checkbox',
								'label' => __( 'Don\'t load popup theme styles to the head.', 'popup-maker' ),
								'desc'  => __( 'Check this if you have copied the popup theme styles to your own stylesheet or are using custom styles.', 'popup-maker' ),
							],
							'output_pum_styles'           => [
								'id'      => 'output_pum_styles',
								'type'    => 'html',
								'content' => self::field_pum_styles(),
							],
						],
					],
				]
			);

$fields = apply_filters( 'pum_settings_fields', $fields );

$fields = PUM_Admin_Helpers::parse_tab_fields(
				$fields,
				[
					'has_subtabs' => true,
					'name'        => 'pum_settings[%s]',
				]
			);
		}

return $fields;
	}

/**
	 * @return string
	 */
	public static function field_pum_styles() {
		$core_styles = file_get_contents( Popup_Maker::$DIR . 'assets/css/pum-site' . ( is_rtl() ? '-rtl' : '' ) . PUM_Site_Assets::$suffix . '.css' );

$user_styles = PUM_AssetCache::generate_font_imports() . PUM_AssetCache::generate_popup_theme_styles() . PUM_AssetCache::generate_popup_styles();

ob_start();

?>
		<button type="button" id="show_pum_styles" onclick="jQuery('#pum_style_output').slideDown();jQuery(this).hide();"><?php _e( 'Show Popup Maker CSS', 'popup-maker' ); ?></button>
		<p class="pum-desc desc"><?php __( "Use this to quickly copy Popup Maker's CSS to your own stylesheet.", 'popup-maker' ); ?></p>

<?php

return ob_get_clean();
	}

/**
	 * @return array
	 */
	public static function user_role_options() {
		global $wp_roles;

$options = [];
		foreach ( $wp_roles->roles as $role => $labels ) {
			$options[ $role ] = $labels['name'];
		}

return $options;
	}

/**
	 * Render settings page with tabs.
	 */
	public static function page() {

$settings = PUM_Utils_Options::get_all();

if ( empty( $settings ) ) {
			$settings = self::defaults();
		}

<?php wp_nonce_field( basename( __FILE__ ), 'pum_settings_nonce' ); ?>
				<h1><?php _e( 'Popup Maker Settings', 'popup-maker' ); ?></h1>
				<div id="pum-settings-container" class="pum-settings-container">
					<div class="pum-no-js" style="padding: 0 12px;">
						<p><?php printf( __( 'If you are seeing this, the page is still loading or there are Javascript errors on this page. %1$sView troubleshooting guide%2$s', 'popup-maker' ), '<a href="https://docs.wppopupmaker.com/article/373-checking-for-javascript-errors" target="_blank">', '</a>' ); ?></p>
					</div>
				</div>

</form>

</div>

<?php
	}

/**
	 * @return array
	 */
	public static function defaults() {
		$tabs = self::fields();

$defaults = [];

foreach ( $tabs as $section_id => $fields ) {
			foreach ( $fields as $key => $field ) {
				$defaults[ $key ] = isset( $field['std'] ) ? $field['std'] : null;
			}
		}

return $defaults;
	}

/**
	 * List of tabs & labels for the settings panel.
	 *
	 * @return array
	 */
	public static function tabs() {
		static $tabs;

if ( ! isset( $tabs ) ) {
			$tabs = apply_filters(
				'pum_settings_tabs',
				[
					'general'       => __( 'General', 'popup-maker' ),
					'subscriptions' => __( 'Subscriptions', 'popup-maker' ),
					'extensions'    => __( 'Extensions', 'popup-maker' ),
					'licenses'      => __( 'Licenses', 'popup-maker' ),
					'privacy'       => __( 'Privacy', 'popup-maker' ),
					'misc'          => __( 'Misc', 'popup-maker' ),
				]
			);

/** @deprecated 1.7.0 */
			$tabs = apply_filters( 'popmake_settings_tabs', $tabs );
		}

return $tabs;
	}

/**
	 * List of tabs & labels for the settings panel.
	 *
	 * @return array
	 */
	public static function sections() {
		return apply_filters(
			'pum_settings_tab_sections',
			[
				'general'       => [
					'main' => __( 'General', 'popup-maker' ),
				],
				'subscriptions' => [
					'main' => __( 'General', 'popup-maker' ),
				],
				'extensions'    => [
					'main' => __( 'Extension Settings', 'popup-maker' ),
				],
				'licenses'      => [
					'main' => __( 'Licenses', 'popup-maker' ),
				],
				'privacy'       => [
					'main'  => __( 'General', 'popup-maker' ),
					'forms' => __( 'Subscription Forms', 'popup-maker' ),
				],
				'misc'          => [
					'main'   => __( 'Misc', 'popup-maker' ),
					'assets' => __( 'Assets', 'popup-maker' ),
				],
			]
		);
	}

/**
	 * @return int|null|string
	 */
	public static function get_active_tab() {
		$tabs = self::tabs();

return isset( $_GET['tab'] ) && array_key_exists( $_GET['tab'], $tabs ) ? sanitize_text_field( $_GET['tab'] ) : key( $tabs );
	}

/**
	 * @return bool|int|null|string
	 */
	public static function get_active_section() {
		$active_tab = self::get_active_tab();
		$sections   = self::sections();

$tab_sections = ! empty( $sections[ $active_tab ] ) ? $sections[ $active_tab ] : false;

if ( ! $tab_sections ) {
			return false;
		}

return isset( $_GET['section'] ) && array_key_exists( $_GET['section'], $tab_sections ) ? sanitize_text_field( $_GET['section'] ) : key( $tab_sections );
	}

/**
	 * Parse values for form rendering.
	 *
	 * Add additional data for license_key fields, split the measure fields etc.
	 *
	 * @param $settings
	 *
	 * @return mixed
	 */
	public static function parse_values( $settings ) {

foreach ( $settings as $key => $value ) {
			$field = self::get_field( $key );

if ( $field ) {

/**
				 * Process fields with specific types.
				 */
				switch ( $field['type'] ) {
					case 'measure':
						break;
					case 'license_key':
						$license = get_option( $field['options']['is_valid_license_option'] );

$settings[ $key ] = [
							'key'      => trim( $value ),
							'status'   => PUM_Licensing::get_status( $license, ! empty( $value ) ),
							'messages' => PUM_Licensing::get_status_messages( $license, trim( $value ) ),
							'expires'  => PUM_Licensing::get_license_expiration( $license ),
							'classes'  => PUM_Licensing::get_status_classes( $license ),
						];
						break;
				}

/**
				 * Process fields with specific ids.
				 */
				switch ( $field['id'] ) {
					/*
					case 'pum_license_status':
						$settings[ $key ] = Licensing::get_status();
						break;
					*/
				}
			}
		}

return $settings;
	}

/**
	 *
	 */
	public static function license_deactivated() {

}

/**
	 * @param array $meta
	 *
	 * @return array
	 */
	public static function sanitize_objects( $meta = [] ) {
		if ( ! empty( $meta ) ) {

foreach ( $meta as $key => $value ) {

if ( is_string( $value ) ) {
					try {
						$value = json_decode( stripslashes( $value ) );
					} catch ( Exception $e ) {
					}
				}

$meta[ $key ] = PUM_Admin_Helpers::object_to_array( $value );
			}
		}

return $meta;
	}

}