<?php
/**
 * ACF 6.8.0 feature port.
 *
 * @package wordpress/secure-custom-fields
 */

// phpcs:disable -- Upstream ACF 6.8.0 feature-port files are kept close to source.

namespace SCF\Site_Health;

// Exit if accessed directly.
defined( 'ABSPATH' ) || exit;

/**
 * The ACF Site Health class responsible for populating SCF debug information in WordPress Site Health.
 */
class Site_Health {

	/**
	 * The option name used to store site health data.
	 *
	 * @var string
	 */
	public string $option_name = 'acf_site_health';

	/**
	 * Stores an instance of the AI_Usage helper class.
	 *
	 * @var AI_Usage
	 */
	private AI_Usage $ai_usage;

	/**
	 * Constructs the ACF_Site_Health class.
	 *
	 * @since 6.3
	 */
	public function __construct() {
		$this->ai_usage = new AI_Usage( $this );

		add_filter( 'debug_information', array( $this, 'render_tab_content' ) );
		add_action( 'acf_update_site_health_data', array( $this, 'update_site_health_data_event' ) );

		$hook      = 'acf_update_site_health_data';
		$timestamp = wp_next_scheduled( $hook );

		if ( ! $timestamp ) {
			wp_schedule_event( time(), 'daily', $hook );
		} elseif ( 'daily' !== wp_get_schedule( $hook ) ) {
			wp_unschedule_event( $timestamp, $hook );
			wp_schedule_event( time(), 'daily', $hook );
		}

		// ACF events.
		add_action( 'acf/first_activated', array( $this, 'add_activation_event_action' ) );
		add_action( 'acf/activated_pro', array( $this, 'add_activation_event_action' ) );
		add_filter( 'acf/pre_update_field_group', array( $this, 'pre_update_acf_internal_cpt' ) );
		add_filter( 'acf/pre_update_post_type', array( $this, 'pre_update_acf_internal_cpt' ) );
		add_filter( 'acf/pre_update_taxonomy', array( $this, 'pre_update_acf_internal_cpt' ) );
		add_filter( 'acf/pre_update_ui_options_page', array( $this, 'pre_update_acf_internal_cpt' ) );
	}

	/**
	 * Gets the stored site health information.
	 *
	 * @since 6.3
	 *
	 * @return array
	 */
	public function get_site_health(): array {
		$site_health = get_option( $this->option_name, '' );

		if ( is_string( $site_health ) ) {
			$site_health = json_decode( $site_health, true );
		}

		return is_array( $site_health ) ? $site_health : array();
	}

	/**
	 * Updates the site health information.
	 *
	 * @since 6.3
	 *
	 * @param array $data An array of site health information to update.
	 * @return boolean
	 */
	public function update_site_health( array $data = array() ): bool {
		return update_option( $this->option_name, wp_json_encode( $data ), false );
	}

	/**
	 * Updates the site health information for action callbacks.
	 *
	 * @since 6.8
	 *
	 * @param array $data Data to update with (optional).
	 * @return void
	 */
	public function update_site_health_data_event( array $data = array() ): void {
		$this->update_site_health_data( $data );
	}

	/**
	 * Stores debug data in the SCF site health option.
	 *
	 * @since 6.3
	 *
	 * @param array $data Data to update with (optional).
	 * @return boolean
	 */
	public function update_site_health_data( array $data = array() ): bool {
		if ( wp_doing_cron() ) {
			// Bootstrap wp-admin, as WP_Cron doesn't do this for us.
			require_once trailingslashit( ABSPATH ) . 'wp-admin/includes/admin.php';
		}

		$site_health = $this->get_site_health();
		$values      = ! empty( $data ) ? $data : $this->get_site_health_values();
		$updated     = array();

		if ( ! empty( $values ) ) {
			foreach ( $values as $key => $value ) {
				$updated[ $key ] = $value['debug'] ?? $value['value'];
			}
		}

		foreach ( $site_health as $key => $value ) {
			// Preserve event_* keys for activation tracking.
			if ( 'event_' === substr( $key, 0, 6 ) ) {
				$updated[ $key ] = $value;
				continue;
			}

			// Preserve AI usage data.
			if ( 'ai_usage' === $key ) {
				$updated[ $key ] = $value;
				continue;
			}
		}

		$this->maybe_log_first_registered_block( $site_health, $updated );

		$updated['last_updated'] = time();

		return $this->update_site_health( $updated );
	}

	/**
	 * Logs the first-run timestamp of a WP-CLI command.
	 *
	 * Stores an associative array under the `event_cli_commands` key in the
	 * site health option. Each entry maps a full command name (e.g.
	 * "acf json import") to the Unix timestamp when it was first executed.
	 * Subsequent calls for the same command are no-ops.
	 *
	 * @since 6.8
	 *
	 * @param string $command The full CLI command name (e.g. "acf json import").
	 * @return boolean True if a new entry was written, false if already recorded.
	 */
	public function log_cli_command( string $command ): bool {
		$site_health = $this->get_site_health();

		if ( ! isset( $site_health['event_cli_commands'] ) || ! is_array( $site_health['event_cli_commands'] ) ) {
			$site_health['event_cli_commands'] = array();
		}

		if ( isset( $site_health['event_cli_commands'][ $command ] ) ) {
			return false;
		}

		$time = time();

		$site_health['event_cli_commands'][ $command ] = $time;
		$site_health['last_updated']                   = $time;

		return $this->update_site_health( $site_health );
	}

	/**
	 * Pushes an event to the SCF site health option.
	 *
	 * @since 6.3
	 *
	 * @param string $event_name The name of the event to push.
	 * @return boolean
	 */
	public function add_site_health_event( string $event_name = '' ): bool {
		$site_health = $this->get_site_health();

		// Allow using action/filter hooks to set events.
		if ( empty( $event_name ) ) {
			$current_filter = current_filter();

			if ( strpos( $current_filter, 'acf/' ) !== false ) {
				$event_name = str_replace( 'acf/', '', $current_filter );
			}
		}

		// Bail if this event was already stored.
		if ( empty( $event_name ) || ! empty( $site_health[ 'event_' . $event_name ] ) ) {
			return false;
		}

		$time = time();

		$site_health[ 'event_' . $event_name ] = $time;
		$site_health['last_updated']           = $time;

		return $this->update_site_health( $site_health );
	}

	/**
	 * Logs activation events for free/pro.
	 *
	 * @since 6.3
	 *
	 * @return boolean
	 */
	public function add_activation_event() {
		$event_name = 'first_activated';

		if ( acf_is_pro() ) {
			$event_name = 'first_activated_pro';

			if ( 'acf/first_activated' !== current_filter() ) {
				$site_health = $this->get_site_health();

				/**
				 * We already have an event for when pro was first activated,
				 * so we don't need to log an additional event here.
				 */
				if ( ! empty( $site_health[ 'event_' . $event_name ] ) ) {
					return false;
				}

				$event_name = 'activated_pro';
			}
		}

		return $this->add_site_health_event( $event_name );
	}

	/**
	 * Logs activation events for action callbacks.
	 *
	 * @since 6.8
	 *
	 * @return void
	 */
	public function add_activation_event_action(): void {
		$this->add_activation_event();
	}

	/**
	 * Logs when a site first registers an ACF Block.
	 *
	 * Only sets the event when the stored registered_acf_blocks count
	 * transitions from 0 to a positive number. Requires a previously
	 * stored count of 0 to avoid backfilling existing users. Tracks a
	 * has_had_blocks flag to prevent false positives when users remove
	 * all blocks and later re-add them.
	 *
	 * @since 6.8
	 *
	 * @param array $site_health The previously stored site health data.
	 * @param array $updated     The updated site health data. This array may be modified to include the first registered block event timestamp.
	 * @return void
	 */
	public function maybe_log_first_registered_block( array $site_health, array &$updated ): void {
		if ( ! acf_is_pro() ) {
			return;
		}

		if ( ! empty( $site_health['has_had_blocks'] ) ) {
			$updated['has_had_blocks'] = true;
		}

		// Already tracked — event is immutable.
		if ( ! empty( $updated['event_first_registered_block'] ) ) {
			return;
		}

		// No previous block count stored — site predates this field. Skip to establish a baseline.
		if ( ! isset( $site_health['registered_acf_blocks'] ) ) {
			return;
		}

		// Blocks were previously registered — set flag and skip.
		if ( (int) $site_health['registered_acf_blocks'] > 0 ) {
			$updated['has_had_blocks'] = true;
			return;
		}

		// Flag already set — user had blocks before (remove-then-re-add scenario).
		if ( ! empty( $updated['has_had_blocks'] ) ) {
			return;
		}

		// Transition from 0 → positive: first time registering a block.
		if ( $this->get_registered_block_count() > 0 ) {
			$updated['event_first_registered_block'] = time();
			$updated['has_had_blocks']               = true;
		}
	}

	/**
	 * Gets the number of registered SCF blocks.
	 *
	 * @since 6.8
	 *
	 * @return integer
	 */
	private function get_registered_block_count(): int {
		return count( acf_get_block_types() );
	}

	/**
	 * Adds events when ACF internal post types are created.
	 *
	 * @since 6.3
	 *
	 * @param array $post The post about to be updated.
	 * @return array
	 */
	public function pre_update_acf_internal_cpt( array $post = array() ): array {
		if ( empty( $post['key'] ) ) {
			return $post;
		}

		$post_type = acf_determine_internal_post_type( $post['key'] );

		if ( $post_type ) {
			$posts = acf_get_internal_post_type_posts( $post_type );

			if ( empty( $posts ) ) {
				$post_type = str_replace(
					array(
						'acf-',
						'-',
					),
					array(
						'',
						'_',
					),
					$post_type
				);
				$this->add_site_health_event( 'first_created_' . $post_type );
			}
		}

		return $post;
	}

	/**
	 * Appends the ACF section to the "Info" tab of the WordPress Site Health screen.
	 *
	 * @since 6.3
	 *
	 * @param array $debug_info The current debug info for site health.
	 * @return array The debug info appended with the ACF section.
	 */
	public function render_tab_content( array $debug_info ): array {
		$data = $this->get_site_health_values();

		$this->update_site_health_data( $data );

		// Unset values we don't want to display yet.
		$fields_to_unset = array(
			'wp_version',
			'mysql_version',
			'is_multisite',
			'active_theme',
			'parent_theme',
			'active_plugins',
			'number_of_fields_by_type',
			'number_of_third_party_fields_by_type',
			'field_groups_with_single_block_rule',
			'field_groups_with_multiple_block_rules',
			'field_groups_with_blocks_and_other_rules',
			'all_location_rules',
		);

		foreach ( $fields_to_unset as $field ) {
			if ( isset( $data[ $field ] ) ) {
				unset( $data[ $field ] );
			}
		}

		foreach ( $data as $key => $value ) {
			if ( 'event_' === substr( $key, 0, 6 ) ) {
				unset( $data[ $key ] );
			}
		}

		$debug_info['secure-custom-fields'] = array(
			'label'       => __( 'SCF', 'secure-custom-fields' ),
			'description' => __( 'This section contains debug information about your SCF configuration which can be useful to provide to support.', 'secure-custom-fields' ),
			'fields'      => $data,
		);

		return $debug_info;
	}

	/**
	 * Gets the values for all data in the SCF site health section.
	 *
	 * @since 6.3
	 *
	 * @return array
	 */
	public function get_site_health_values(): array {
		global $wpdb;

		$fields         = array();
		$is_pro       = acf_is_pro();
		$field_groups = acf_get_field_groups();
		$post_types   = acf_get_acf_post_types();
		$taxonomies   = acf_get_acf_taxonomies();

		$yes      = __( 'Yes', 'secure-custom-fields' );
		$no       = __( 'No', 'secure-custom-fields' );
		$enabled  = __( 'Enabled', 'secure-custom-fields' );
		$disabled = __( 'Disabled', 'secure-custom-fields' );

		$fields['version'] = array(
			'label' => __( 'Plugin Version', 'secure-custom-fields' ),
			'value' => defined( 'ACF_VERSION' ) ? ACF_VERSION : '',
		);

		$fields['plugin_type'] = array(
			'label' => __( 'Plugin Type', 'secure-custom-fields' ),
			'value' => __( 'Secure Custom Fields', 'secure-custom-fields' ),
			'debug' => 'Secure Custom Fields',
		);

		$fields['update_source'] = array(
			'label' => __( 'Update Source', 'secure-custom-fields' ),
			'value' => apply_filters( 'acf/site_health/update_source', __( 'wordpress.org', 'secure-custom-fields' ) ),
		);

		$fields['wp_version'] = array(
			'label' => __( 'WordPress Version', 'secure-custom-fields' ),
			'value' => get_bloginfo( 'version' ),
		);

		$fields['mysql_version'] = array(
			'label' => __( 'MySQL Version', 'secure-custom-fields' ),
			'value' => $wpdb->db_server_info(),
		);

		$fields['is_multisite'] = array(
			'label' => __( 'Is Multisite', 'secure-custom-fields' ),
			'value' => is_multisite() ? __( 'Yes', 'secure-custom-fields' ) : __( 'No', 'secure-custom-fields' ),
			'debug' => is_multisite(),
		);

		$active_theme = wp_get_theme();
		$parent_theme = $active_theme->parent();

		$fields['active_theme'] = array(
			'label' => __( 'Active Theme', 'secure-custom-fields' ),
			'value' => array(
				'name'       => $active_theme->get( 'Name' ),
				'version'    => $active_theme->get( 'Version' ),
				'theme_uri'  => $active_theme->get( 'ThemeURI' ),
				'stylesheet' => $active_theme->get( 'Stylesheet' ),
			),
		);

		if ( $parent_theme ) {
			$fields['parent_theme'] = array(
				'label' => __( 'Parent Theme', 'secure-custom-fields' ),
				'value' => array(
					'name'       => $parent_theme->get( 'Name' ),
					'version'    => $parent_theme->get( 'Version' ),
					'theme_uri'  => $parent_theme->get( 'ThemeURI' ),
					'stylesheet' => $parent_theme->get( 'Stylesheet' ),
				),
			);
		}

		$active_plugins = array();
		$plugins        = get_plugins();

		foreach ( $plugins as $plugin_path => $plugin ) {
			if ( ! is_plugin_active( $plugin_path ) ) {
				continue;
			}

			$active_plugins[ $plugin_path ] = array(
				'name'       => $plugin['Name'],
				'version'    => $plugin['Version'],
				'plugin_uri' => empty( $plugin['PluginURI'] ) ? '' : $plugin['PluginURI'],
			);
		}

		$fields['active_plugins'] = array(
			'label' => __( 'Active Plugins', 'secure-custom-fields' ),
			'value' => $active_plugins,
		);

		$ui_field_groups = array_filter(
			$field_groups,
			function ( $field_group ) {
				return empty( $field_group['local'] );
			}
		);

		$fields['ui_field_groups'] = array(
			'label' => __( 'Registered Field Groups (UI)', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( $ui_field_groups ) ),
		);

		$php_field_groups = array_filter(
			$field_groups,
			function ( $field_group ) {
				return ! empty( $field_group['local'] ) && 'PHP' === $field_group['local'];
			}
		);

		$fields['php_field_groups'] = array(
			'label' => __( 'Registered Field Groups (PHP)', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( $php_field_groups ) ),
		);

		$json_field_groups = array_filter(
			$field_groups,
			function ( $field_group ) {
				return ! empty( $field_group['local'] ) && 'json' === $field_group['local'];
			}
		);

		$fields['json_field_groups'] = array(
			'label' => __( 'Registered Field Groups (JSON)', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( $json_field_groups ) ),
		);

		$rest_field_groups = array_filter(
			$field_groups,
			function ( $field_group ) {
				return ! empty( $field_group['show_in_rest'] );
			}
		);

		$fields['rest_field_groups'] = array(
			'label' => __( 'Field Groups Enabled for REST API', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( $rest_field_groups ) ),
		);

		$graphql_field_groups = array_filter(
			$field_groups,
			function ( $field_group ) {
				return ! empty( $field_group['show_in_graphql'] );
			}
		);

		if ( is_plugin_active( 'wpgraphql-acf/wpgraphql-acf.php' ) ) {
			$fields['graphql_field_groups'] = array(
				'label' => __( 'Field Groups Enabled for GraphQL', 'secure-custom-fields' ),
				'value' => number_format_i18n( count( $graphql_field_groups ) ),
			);
		}

		$all_fields   = array();
		$object_types = array();
		$all_rules    = array();

		foreach ( $field_groups as $field_group ) {
			$all_fields = array_merge( $all_fields, acf_get_fields( $field_group ) );

			foreach ( $field_group['location'] as $rules ) {
				foreach ( $rules as $rule ) {
					if ( empty( $rule['param'] ) ) {
						continue;
					}

					$operator    = ! empty( $rule['operator'] ) ? $rule['operator'] : '';
					$value       = ! empty( $rule['value'] ) ? $rule['value'] : '';
					$all_rules[] = $rule['param'] . $operator . $value;

					if ( ! $is_pro ) {
						continue;
					}

					$location = acf_get_location_type( $rule['param'] );
					if ( ! $location ) {
						continue;
					}

					$location_type                         = $location->get_object_type( $rule );
					$object_types[ $field_group['key'] ][] = $location_type;
				}
			}
		}

		$fields['all_location_rules'] = array(
			'label' => __( 'All Location Rules', 'secure-custom-fields' ),
			'value' => array_values( array_unique( $all_rules ) ),
		);

		if ( $is_pro ) {
			$field_groups_with_single_block_rule      = 0;
			$field_groups_with_multiple_block_rules   = 0;
			$field_groups_with_blocks_and_other_rules = 0;

			foreach ( $object_types as $types ) {
				$num_types = array_count_values( $types );

				// Bail if no block location rules.
				if ( empty( $num_types['block'] ) ) {
					continue;
				}

				if ( count( $num_types ) === 1 ) {
					// Field group is only assigned to blocks.
					if ( $num_types['block'] === 1 ) {
						++$field_groups_with_single_block_rule;
					} else {
						++$field_groups_with_multiple_block_rules;
					}
				} else {
					// Field group is assigned to blocks & other stuff.
					++$field_groups_with_blocks_and_other_rules;
				}
			}

			$fields['field_groups_with_single_block_rule'] = array(
				'label' => __( 'Number of Field Groups with a Single Block Location', 'secure-custom-fields' ),
				'value' => number_format_i18n( $field_groups_with_single_block_rule ),
			);

			$fields['field_groups_with_multiple_block_rules'] = array(
				'label' => __( 'Number of Field Groups with Multiple Block Locations', 'secure-custom-fields' ),
				'value' => number_format_i18n( $field_groups_with_multiple_block_rules ),
			);

			$fields['field_groups_with_blocks_and_other_rules'] = array(
				'label' => __( 'Number of Field Groups with Blocks and Other Locations', 'secure-custom-fields' ),
				'value' => number_format_i18n( $field_groups_with_blocks_and_other_rules ),
			);
		}

		$fields_by_type             = array();
		$third_party_fields_by_type = array();
		$core_field_types           = array_keys( acf_get_field_types() );

		foreach ( $all_fields as $field ) {
			if ( in_array( $field['type'], $core_field_types, true ) ) {
				if ( ! isset( $fields_by_type[ $field['type'] ] ) ) {
					$fields_by_type[ $field['type'] ] = 0;
				}

				++$fields_by_type[ $field['type'] ];

				continue;
			}

			if ( ! isset( $third_party_fields_by_type[ $field['type'] ] ) ) {
				$third_party_fields_by_type[ $field['type'] ] = 0;
			}

			++$third_party_fields_by_type[ $field['type'] ];
		}

		$fields['number_of_fields_by_type'] = array(
			'label' => __( 'Number of Fields by Field Type', 'secure-custom-fields' ),
			'value' => $fields_by_type,
		);

		$fields['number_of_third_party_fields_by_type'] = array(
			'label' => __( 'Number of Third Party Fields by Field Type', 'secure-custom-fields' ),
			'value' => $third_party_fields_by_type,
		);

		$enable_post_types = acf_get_setting( 'enable_post_types' );

		$fields['post_types_enabled'] = array(
			'label' => __( 'Post Types and Taxonomies Enabled', 'secure-custom-fields' ),
			'value' => $enable_post_types ? $yes : $no,
			'debug' => $enable_post_types,
		);

		$ui_post_types = array_filter(
			$post_types,
			function ( $post_type ) {
				return ! empty( $post_type['ID'] );
			}
		);

		$fields['ui_post_types'] = array(
			'label' => __( 'Registered Post Types (UI)', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( $ui_post_types ) ),
		);

		$json_post_types = array_filter(
			$post_types,
			function ( $post_type ) {
				return ! empty( $post_type['local'] ) && 'json' === $post_type['local'] && empty( $post_type['ID'] );
			}
		);

		$fields['json_post_types'] = array(
			'label' => __( 'Registered Post Types (JSON)', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( $json_post_types ) ),
		);

		$ui_taxonomies = array_filter(
			$taxonomies,
			function ( $taxonomy ) {
				return ! empty( $taxonomy['ID'] );
			}
		);

		$fields['ui_taxonomies'] = array(
			'label' => __( 'Registered Taxonomies (UI)', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( $ui_taxonomies ) ),
		);

		$json_taxonomies = array_filter(
			$taxonomies,
			function ( $taxonomy ) {
				return ! empty( $taxonomy['local'] ) && 'json' === $taxonomy['local'] && empty( $taxonomy['ID'] );
			}
		);

		$fields['json_taxonomies'] = array(
			'label' => __( 'Registered Taxonomies (JSON)', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( $json_taxonomies ) ),
		);

		if ( $is_pro ) {
			$enable_options_pages_ui = acf_get_setting( 'enable_options_pages_ui' );

			$fields['ui_options_pages_enabled'] = array(
				'label' => __( 'Options Pages UI Enabled', 'secure-custom-fields' ),
				'value' => $enable_options_pages_ui ? $yes : $no,
				'debug' => $enable_options_pages_ui,
			);

			$options_pages    = acf_get_options_pages();
			$ui_options_pages = array();

			if ( empty( $options_pages ) || ! is_array( $options_pages ) ) {
				$options_pages = array();
			}

			if ( $enable_options_pages_ui ) {
				$ui_options_pages = acf_get_ui_options_pages();

				$ui_options_pages_in_ui = array_filter(
					$ui_options_pages,
					function ( $ui_options_page ) {
						return ! empty( $ui_options_page['ID'] );
					}
				);

				$json_options_pages = array_filter(
					$ui_options_pages,
					function ( $ui_options_page ) {
						return ! empty( $ui_options_page['local'] ) && empty( $ui_options_page['ID'] );
					}
				);

				$fields['ui_options_pages'] = array(
					'label' => __( 'Registered Options Pages (UI)', 'secure-custom-fields' ),
					'value' => number_format_i18n( count( $ui_options_pages_in_ui ) ),
				);

				$fields['json_options_pages'] = array(
					'label' => __( 'Registered Options Pages (JSON)', 'secure-custom-fields' ),
					'value' => number_format_i18n( count( $json_options_pages ) ),
				);
			}

			$ui_options_page_slugs = array_column( $ui_options_pages, 'menu_slug' );
			$php_options_pages     = array_filter(
				$options_pages,
				function ( $options_page ) use ( $ui_options_page_slugs ) {
					return ! in_array( $options_page['menu_slug'], $ui_options_page_slugs, true );
				}
			);

			$fields['php_options_pages'] = array(
				'label' => __( 'Registered Options Pages (PHP)', 'secure-custom-fields' ),
				'value' => number_format_i18n( count( $php_options_pages ) ),
			);
		}

		$rest_api_format = acf_get_setting( 'rest_api_format' );

		$fields['rest_api_format'] = array(
			'label' => __( 'REST API Format', 'secure-custom-fields' ),
			'value' => 'standard' === $rest_api_format ? __( 'Standard', 'secure-custom-fields' ) : __( 'Light', 'secure-custom-fields' ),
			'debug' => $rest_api_format,
		);

		$schema_objects = array(
			'blocks'     => 0,
			'post_types' => 0,
		);

		if ( $is_pro ) {
			$fields['registered_acf_blocks'] = array(
				'label' => __( 'Registered SCF Blocks', 'secure-custom-fields' ),
				'value' => number_format_i18n( $this->get_registered_block_count() ),
			);

			$blocks                           = acf_get_block_types();
			$block_api_versions               = array();
			$acf_block_versions               = array();
			$blocks_using_post_meta           = 0;
			$blocks_using_auto_inline_editing = 0;

			foreach ( $blocks as $block ) {
				if ( ! isset( $block_api_versions[ 'v' . $block['api_version'] ] ) ) {
					$block_api_versions[ 'v' . $block['api_version'] ] = 0;
				}

				if ( ! isset( $acf_block_versions[ 'v' . $block['acf_block_version'] ] ) ) {
					$acf_block_versions[ 'v' . $block['acf_block_version'] ] = 0;
				}

				if ( ! empty( $block['use_post_meta'] ) ) {
					++$blocks_using_post_meta;
				}

				if ( ! empty( $block['auto_inline_editing'] ) ) {
					++$blocks_using_auto_inline_editing;
				}

				if ( ! empty( $block['auto_jsonld'] ) ) {
					++$schema_objects['blocks'];
				}

				++$block_api_versions[ 'v' . $block['api_version'] ];
				++$acf_block_versions[ 'v' . $block['acf_block_version'] ];
			}

			$fields['blocks_per_api_version'] = array(
				'label' => __( 'Blocks Per API Version', 'secure-custom-fields' ),
				'value' => $block_api_versions,
			);

			$fields['blocks_per_acf_block_version'] = array(
				'label' => __( 'Blocks Per SCF Block Version', 'secure-custom-fields' ),
				'value' => $acf_block_versions,
			);

			$fields['blocks_using_post_meta'] = array(
				'label' => __( 'Blocks Using Post Meta', 'secure-custom-fields' ),
				'value' => number_format_i18n( $blocks_using_post_meta ),
			);

			$fields['blocks_using_auto_inline_editing'] = array(
				'label' => __( 'Blocks Using Auto Inline Editing', 'secure-custom-fields' ),
				'value' => number_format_i18n( $blocks_using_auto_inline_editing ),
			);

			$preload_blocks = acf_get_setting( 'preload_blocks' );

			$fields['preload_blocks'] = array(
				'label' => __( 'Block Preloading Enabled', 'secure-custom-fields' ),
				'value' => ! empty( $preload_blocks ) ? $yes : $no,
				'debug' => $preload_blocks,
			);
		}

		$show_admin = acf_get_setting( 'show_admin' );

		$fields['admin_ui_enabled'] = array(
			'label' => __( 'Admin UI Enabled', 'secure-custom-fields' ),
			'value' => $show_admin ? $yes : $no,
			'debug' => $show_admin,
		);

		$field_type_modal_enabled = apply_filters( 'acf/field_group/enable_field_browser', true );

		$fields['field_type-modal_enabled'] = array(
			'label' => __( 'Field Type Modal Enabled', 'secure-custom-fields' ),
			'value' => ! empty( $field_type_modal_enabled ) ? $yes : $no,
			'debug' => $field_type_modal_enabled,
		);

		$field_settings_tabs_enabled = apply_filters( 'acf/field_group/disable_field_settings_tabs', false );

		$fields['field_settings_tabs_enabled'] = array(
			'label' => __( 'Field Settings Tabs Enabled', 'secure-custom-fields' ),
			'value' => empty( $field_settings_tabs_enabled ) ? $yes : $no,
			'debug' => $field_settings_tabs_enabled,
		);

		$shortcode_enabled = acf_get_setting( 'enable_shortcode' );

		$fields['shortcode_enabled'] = array(
			'label' => __( 'Shortcode Enabled', 'secure-custom-fields' ),
			'value' => ! empty( $shortcode_enabled ) ? $yes : $no,
			'debug' => $shortcode_enabled,
		);

		$fields['registered_acf_forms'] = array(
			'label' => __( 'Registered SCF Forms', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( acf_get_forms() ) ),
		);

		$local_json = acf_get_instance( 'ACF_Local_JSON' );
		$save_paths = $local_json->get_save_paths();
		$load_paths = $local_json->get_load_paths();

		$fields['json_save_paths'] = array(
			'label' => __( 'JSON Save Paths', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( $save_paths ) ),
			'debug' => count( $save_paths ),
		);

		$fields['json_load_paths'] = array(
			'label' => __( 'JSON Load Paths', 'secure-custom-fields' ),
			'value' => number_format_i18n( count( $load_paths ) ),
			'debug' => count( $load_paths ),
		);

		$ai_enabled = acf_get_setting( 'enable_acf_ai' );

		$fields['ai_enabled'] = array(
			'label' => __( 'AI Support', 'secure-custom-fields' ),
			'value' => ! empty( $ai_enabled ) ? $enabled : $disabled,
			'debug' => $ai_enabled,
		);

		// Add AI usage metrics if enabled and the Abilities API is available (WP 6.9+).
		$abilities_api_available = function_exists( 'wp_register_ability' );

		if ( $ai_enabled && ! $abilities_api_available ) {
			$fields['ai_abilities_api'] = array(
				'label' => __( 'Abilities API', 'secure-custom-fields' ),
				'value' => __( 'Not available (requires WordPress 6.9+)', 'secure-custom-fields' ),
				'debug' => 'unavailable',
			);
		}

		if ( $ai_enabled && $abilities_api_available ) {
			$ai_ready_counts = $this->ai_usage->get_ai_ready_counts( $field_groups, $post_types, $taxonomies );
			$ai_usage        = $this->ai_usage->get_usage_metrics();

			$fields['ai_ready_objects'] = array(
				'label' => __( 'AI-Ready Objects', 'secure-custom-fields' ),
				'value' => sprintf(
					/* translators: 1: field group count, 2: post type count, 3: taxonomy count */
					__( '%1$d Field Groups, %2$d Custom Post Types, %3$d Taxonomies', 'secure-custom-fields' ),
					$ai_ready_counts['field_groups'],
					$ai_ready_counts['post_types'],
					$ai_ready_counts['taxonomies'],
				),
				'debug' => $ai_ready_counts,
			);

			$executions_text = sprintf(
				/* translators: %s - number of successful tasks performed */
				_n( '%s (Successful task performed)', '%s (Successful tasks performed)', $ai_usage['total_executions'], 'secure-custom-fields' ),
				number_format_i18n( $ai_usage['total_executions'] )
			);

			$fields['ai_executions'] = array(
				'label' => __( 'AI Actions Executed', 'secure-custom-fields' ),
				'value' => $executions_text,
				'debug' => $ai_usage['total_executions'],
			);

			if ( $ai_usage['error_count'] > 0 ) {
				$fields['ai_errors'] = array(
					'label' => __( 'AI Execution Errors', 'secure-custom-fields' ),
					'value' => number_format_i18n( $ai_usage['error_count'] ),
					'debug' => $ai_usage['error_count'],
				);
			}
		}

		$schema_support           = acf_get_setting( 'enable_schema' );
		$fields['schema_support'] = array(
			'label' => __( 'Schema Support', 'secure-custom-fields' ),
			'value' => ! empty( $schema_support ) ? $enabled : $disabled,
			'debug' => $schema_support,
		);

		foreach ( $post_types as $post_type ) {
			if ( ! empty( $post_type['active'] ) && ! empty( $post_type['auto_jsonld'] ) ) {
				++$schema_objects['post_types'];
			}
		}

		$fields['schema_ready_objects'] = array(
			'label' => __( 'Objects with Schema Support', 'secure-custom-fields' ),
			'value' => sprintf(
				/* translators: 1: number of post types, 2: number of blocks using ACF schema */
				__( '%1$d Post Types, %2$d Blocks', 'secure-custom-fields' ),
				$schema_objects['post_types'],
				$schema_objects['blocks'],
			),
			'debug' => $schema_objects,
		);

		$datastore_enabled           = function_exists( 'acf_is_using_datastore' ) && acf_is_using_datastore();
		$fields['datastore_enabled'] = array(
			'label' => __( 'Datastore Enabled', 'secure-custom-fields' ),
			'value' => $datastore_enabled ? $enabled : $disabled,
			'debug' => $datastore_enabled,
		);

		return $fields;
	}
}
