# thinkrank/1.0.1/includes/api/class-settings-management-endpoint.php

ThinkRank AI SEO – AI SEO Plugin for WordPress: Schema, XML Sitemaps, Meta Tags, Search Console &amp; Local SEO, version 1.0.1. 2,004 lines.

- Page: https://pluginprobe.com/plugins/thinkrank/1.0.1/code/includes/api/class-settings-management-endpoint.php
- Raw: https://pluginprobe.com/plugins/thinkrank/1.0.1/raw/includes/api/class-settings-management-endpoint.php
- Modified: 2025-08-10T07:35:04+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
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```php
<?php
/**
 * Settings Management API Endpoints Class
 *
 * REST API endpoints for centralized settings management across all SEO managers
 * including global settings CRUD, validation and schema management, import/export
 * functionality, and backup/restore operations. Provides comprehensive API access
 * to Settings Manager functionality with proper authentication and validation.
 *
 * @package ThinkRank
 * @subpackage API
 * @since 1.0.0
 */

declare(strict_types=1);

namespace ThinkRank\API;

use ThinkRank\Core\Settings_Manager;
use ThinkRank\SEO\Site_Identity_Manager;
use ThinkRank\SEO\Performance_Monitoring_Manager;
use ThinkRank\SEO\AI_Content_Analyzer;
use ThinkRank\SEO\Content_Optimization_Manager;
use ThinkRank\SEO\Schema_Management_System;
use ThinkRank\SEO\Social_Meta_Manager;
use ThinkRank\SEO\Sitemap_Generator;
use WP_REST_Controller;
use WP_REST_Request;
use WP_REST_Response;
use WP_Error;

/**
 * Settings Management API Endpoints Class
 *
 * Provides REST API endpoints for centralized settings management operations
 * including global settings CRUD, validation, import/export, backup/restore,
 * and cross-manager settings coordination with proper authentication and validation.
 *
 * @since 1.0.0
 */
class Settings_Management_Endpoint extends WP_REST_Controller {

    /**
     * Settings Manager instance
     *
     * @since 1.0.0
     * @var Settings_Manager
     */
    private Settings_Manager $settings_manager;

    /**
     * SEO Manager instances for integration
     *
     * @since 1.0.0
     * @var array
     */
    private array $seo_managers;

    /**
     * API namespace
     *
     * @since 1.0.0
     * @var string
     */
    protected $namespace = 'thinkrank/v1';

    /**
     * API resource base
     *
     * @since 1.0.0
     * @var string
     */
    protected $rest_base = 'settings-management';

    /**
     * Supported setting categories
     *
     * @since 1.0.0
     * @var array
     */
    private array $setting_categories = [
        'site_identity' => 'Site Identity & Global SEO',
        'content_analysis' => 'AI Content Analysis',
        'content_optimization' => 'Content Optimization',
        'performance_monitoring' => 'Performance Monitoring',
        'schema_management' => 'Schema Management',
        'social_media' => 'Social Media & Open Graph',
        'sitemap' => 'XML Sitemap Management',
        'integrations' => 'External Integrations',
        'analytics_integration' => 'Analytics Integration',
        'seo_analytics' => 'SEO Analytics & Intelligence',
        'global_defaults' => 'Global Default Settings'
    ];

    /**
     * Constructor
     *
     * @since 1.0.0
     */
    public function __construct() {
        $this->settings_manager = new Settings_Manager();
        
        // Initialize SEO manager instances for integration
        $this->seo_managers = [
            'site_identity' => new Site_Identity_Manager(),
            'performance_monitoring' => new Performance_Monitoring_Manager(),
            'ai_content_analyzer' => new AI_Content_Analyzer(),
            'content_optimization' => new Content_Optimization_Manager(),
            'schema_management' => new Schema_Management_System(),
            'social_media' => new Social_Meta_Manager(),
            'sitemap' => new Sitemap_Generator(),
            'analytics_integration' => new Performance_Monitoring_Manager()
        ];
    }

    /**
     * Register API routes
     *
     * @since 1.0.0
     */
    public function register_routes(): void {
        // Global settings management
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/global',
            [
                [
                    'methods' => 'GET',
                    'callback' => [$this, 'get_global_settings'],
                    'permission_callback' => [$this, 'check_read_permissions']
                ],
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'update_global_settings'],
                    'permission_callback' => [$this, 'check_manage_permissions'],
                    'args' => $this->get_global_settings_args()
                ]
            ]
        );

        // Category-specific settings
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/category/(?P<category>[a-zA-Z0-9_-]+)',
            [
                [
                    'methods' => 'GET',
                    'callback' => [$this, 'get_category_settings'],
                    'permission_callback' => [$this, 'check_read_permissions'],
                    'args' => [
                        'category' => [
                            'required' => true,
                            'type' => 'string',
                            'enum' => array_keys($this->setting_categories)
                        ]
                    ]
                ],
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'update_category_settings'],
                    'permission_callback' => [$this, 'check_manage_permissions'],
                    'args' => $this->get_category_settings_args()
                ]
            ]
        );

        // Settings validation and schema
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/validate',
            [
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'validate_settings'],
                    'permission_callback' => [$this, 'check_read_permissions'],
                    'args' => $this->get_validation_args()
                ]
            ]
        );

        // Settings schema management
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/schema',
            [
                [
                    'methods' => 'GET',
                    'callback' => [$this, 'get_settings_schema'],
                    'permission_callback' => [$this, 'check_read_permissions']
                ]
            ]
        );

        // Settings import/export
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/export',
            [
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'export_settings'],
                    'permission_callback' => [$this, 'check_manage_permissions'],
                    'args' => $this->get_export_args()
                ]
            ]
        );

        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/import',
            [
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'import_settings'],
                    'permission_callback' => [$this, 'check_manage_permissions'],
                    'args' => $this->get_import_args()
                ]
            ]
        );

        // Settings backup/restore
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/backup',
            [
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'create_settings_backup'],
                    'permission_callback' => [$this, 'check_manage_permissions'],
                    'args' => $this->get_backup_args()
                ]
            ]
        );

        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/restore',
            [
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'restore_settings_backup'],
                    'permission_callback' => [$this, 'check_manage_permissions'],
                    'args' => $this->get_restore_args()
                ]
            ]
        );

        // Settings conflicts resolution
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/conflicts',
            [
                [
                    'methods' => 'GET',
                    'callback' => [$this, 'detect_settings_conflicts'],
                    'permission_callback' => [$this, 'check_read_permissions']
                ],
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'resolve_settings_conflicts'],
                    'permission_callback' => [$this, 'check_manage_permissions'],
                    'args' => $this->get_conflict_resolution_args()
                ]
            ]
        );

        // Settings reset
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/reset',
            [
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'reset_settings'],
                    'permission_callback' => [$this, 'check_manage_permissions'],
                    'args' => $this->get_reset_args()
                ]
            ]
        );

        // Bulk operations
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/bulk',
            [
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'bulk_operations'],
                    'permission_callback' => [$this, 'check_manage_permissions'],
                    'args' => $this->get_bulk_operations_args()
                ]
            ]
        );

        // Database maintenance operations
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/maintenance/performance-indexes',
            [
                [
                    'methods' => 'POST',
                    'callback' => [$this, 'add_performance_indexes'],
                    'permission_callback' => [$this, 'check_manage_permissions']
                ]
            ]
        );
    }

    /**
     * Get global settings across all categories
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response Response object
     */
    public function get_global_settings(WP_REST_Request $request): WP_REST_Response {
        try {
            $include_categories = $request->get_param('categories') ?? array_keys($this->setting_categories);
            $include_schema = $request->get_param('include_schema') ?? false;

            $global_settings = [];
            $settings_schema = [];

            foreach ($include_categories as $category) {
                if (!isset($this->setting_categories[$category])) {
                    continue;
                }

                // Get settings for each category using Settings Manager
                $category_settings = $this->settings_manager->get_settings($category);
                $global_settings[$category] = $category_settings;

                // Get schema if requested
                if ($include_schema && isset($this->seo_managers[$category])) {
                    $settings_schema[$category] = $this->seo_managers[$category]->get_settings_schema($category);
                }
            }

            // Get global metadata
            $metadata = [
                'total_categories' => count($this->setting_categories),
                'loaded_categories' => count($global_settings),
                'last_updated' => $this->get_last_settings_update(),
                'settings_version' => $this->get_settings_version()
            ];

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'settings' => $global_settings,
                    'schema' => $settings_schema,
                    'metadata' => $metadata,
                    'categories' => $this->setting_categories
                ],
                'message' => 'Global settings retrieved successfully'
            ], 200);

        } catch (\Exception $e) {
            return new WP_REST_Response([
                'success' => false,
                'error' => 'Failed to retrieve global settings: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * Update global settings across multiple categories
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function update_global_settings(WP_REST_Request $request) {
        try {
            $settings = $request->get_param('settings');
            $validate_before_update = $request->get_param('validate') ?? true;

            // Validate settings structure
            if (empty($settings) || !is_array($settings)) {
                return new WP_Error(
                    'invalid_settings',
                    'Settings must be provided as an array',
                    ['status' => 400]
                );
            }

            $validation_results = [];
            $update_results = [];

            // Validate all settings before updating if requested
            if ($validate_before_update) {
                foreach ($settings as $category => $category_settings) {
                    if (!isset($this->setting_categories[$category])) {
                        continue;
                    }

                    if (isset($this->seo_managers[$category])) {
                        $validation = $this->seo_managers[$category]->validate_settings($category_settings);
                        $validation_results[$category] = $validation;

                        if (!$validation['valid']) {
                            return new WP_Error(
                                'validation_failed',
                                "Settings validation failed for category: {$category}",
                                [
                                    'status' => 400,
                                    'validation_results' => $validation_results
                                ]
                            );
                        }
                    }
                }
            }

            // Update settings for each category
            foreach ($settings as $category => $category_settings) {
                if (!isset($this->setting_categories[$category])) {
                    continue;
                }

                try {
                    // Update using Settings Manager
                    $update_success = $this->settings_manager->update_settings($category_settings, $category);

                    // Also update through specific SEO manager if available
                    if (isset($this->seo_managers[$category])) {
                        $manager_update = $this->seo_managers[$category]->save_settings('site', null, $category_settings);
                        $update_success = $update_success && $manager_update;
                    }

                    $update_results[$category] = [
                        'success' => $update_success,
                        'settings_count' => count($category_settings)
                    ];

                } catch (\Exception $e) {
                    $update_results[$category] = [
                        'success' => false,
                        'error' => $e->getMessage()
                    ];
                }
            }

            // Update settings version and timestamp
            $this->update_settings_metadata();

            // Get updated settings
            $updated_settings = [];
            foreach (array_keys($settings) as $category) {
                if (isset($this->setting_categories[$category])) {
                    $updated_settings[$category] = $this->settings_manager->get_settings($category);
                }
            }

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'updated_settings' => $updated_settings,
                    'validation_results' => $validation_results,
                    'update_results' => $update_results,
                    'settings_version' => $this->get_settings_version()
                ],
                'message' => 'Global settings updated successfully'
            ], 200);

        } catch (\Exception $e) {
            return new WP_Error(
                'update_failed',
                'Global settings update failed: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Get settings for specific category
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function get_category_settings(WP_REST_Request $request) {
        try {
            $category = $request->get_param('category');
            $include_schema = $request->get_param('include_schema') ?? false;

            // Validate category
            if (!isset($this->setting_categories[$category])) {
                return new WP_Error(
                    'invalid_category',
                    'Invalid settings category provided',
                    ['status' => 400]
                );
            }

            // Get category settings
            $category_settings = $this->settings_manager->get_settings($category);

            // Get schema if requested
            $schema = [];
            if ($include_schema && isset($this->seo_managers[$category])) {
                $schema = $this->seo_managers[$category]->get_settings_schema($category);
            }

            // Get category metadata
            $metadata = [
                'category' => $category,
                'category_name' => $this->setting_categories[$category],
                'settings_count' => count($category_settings),
                'last_updated' => $this->get_category_last_update($category),
                'has_manager' => isset($this->seo_managers[$category])
            ];

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'settings' => $category_settings,
                    'schema' => $schema,
                    'metadata' => $metadata
                ],
                'message' => "Settings for category '{$category}' retrieved successfully"
            ], 200);

        } catch (\Exception $e) {
            return new WP_Error(
                'retrieval_failed',
                'Category settings retrieval failed: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Update settings for specific category
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function update_category_settings(WP_REST_Request $request) {
        try {
            $category = $request->get_param('category');
            $request_data = $request->get_param('settings');
            $validate_before_update = $request->get_param('validate') ?? true;

            // Extract only the actual settings data, not metadata
            if (isset($request_data['settings'])) {
                // If settings are nested under 'settings' key, use that
                $settings = $request_data['settings'];
            } else {
                // Otherwise use the data directly
                $settings = $request_data;
            }

            // Validate category
            if (!isset($this->setting_categories[$category])) {
                return new WP_Error(
                    'invalid_category',
                    'Invalid settings category provided',
                    ['status' => 400]
                );
            }

            // Validate settings
            if (empty($settings) || !is_array($settings)) {
                return new WP_Error(
                    'invalid_settings',
                    'Settings must be provided as an array',
                    ['status' => 400]
                );
            }

            $validation_result = ['valid' => true];

            // Validate settings if requested
            if ($validate_before_update && isset($this->seo_managers[$category])) {
                $validation_result = $this->seo_managers[$category]->validate_settings($settings);

                if (!$validation_result['valid']) {
                    return new WP_Error(
                        'validation_failed',
                        "Settings validation failed for category: {$category}",
                        [
                            'status' => 400,
                            'validation_errors' => $validation_result['errors'],
                            'validation_warnings' => $validation_result['warnings']
                        ]
                    );
                }
            }

            // Update settings
            $update_success = $this->settings_manager->update_settings($settings, $category);

            // Also update through specific SEO manager if available
            if (isset($this->seo_managers[$category])) {
                $context_type = $request->get_param('context_type') ?? 'site';
                $context_id = $request->get_param('context_id') ?? null;
                $manager_update = $this->seo_managers[$category]->save_settings($context_type, $context_id, $settings);
                $update_success = $update_success && $manager_update;
            }

            if (!$update_success) {
                return new WP_Error(
                    'update_failed',
                    "Failed to update settings for category: {$category}",
                    ['status' => 500]
                );
            }

            // Update category metadata
            $this->update_category_metadata($category);

            // Get updated settings
            $updated_settings = $this->settings_manager->get_settings($category);

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'category' => $category,
                    'updated_settings' => $updated_settings,
                    'validation_result' => $validation_result,
                    'settings_count' => count($updated_settings)
                ],
                'message' => "Settings for category '{$category}' updated successfully"
            ], 200);

        } catch (\Exception $e) {
            return new WP_Error(
                'update_failed',
                'Category settings update failed: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Validate settings across categories
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response Response object
     */
    public function validate_settings(WP_REST_Request $request): WP_REST_Response {
        try {
            $settings = $request->get_param('settings');
            $categories = $request->get_param('categories') ?? array_keys($this->setting_categories);

            $validation_results = [];
            $overall_valid = true;

            foreach ($categories as $category) {
                if (!isset($this->setting_categories[$category])) {
                    continue;
                }

                $category_settings = $settings[$category] ?? [];

                if (isset($this->seo_managers[$category])) {
                    $validation = $this->seo_managers[$category]->validate_settings($category_settings);
                    $validation_results[$category] = $validation;

                    if (!$validation['valid']) {
                        $overall_valid = false;
                    }
                } else {
                    // Basic validation for categories without specific managers
                    $validation_results[$category] = [
                        'valid' => true,
                        'errors' => [],
                        'warnings' => [],
                        'suggestions' => []
                    ];
                }
            }

            // Check for cross-category conflicts
            $conflict_analysis = $this->analyze_cross_category_conflicts($settings);

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'validation_results' => $validation_results,
                    'overall_valid' => $overall_valid,
                    'conflict_analysis' => $conflict_analysis,
                    'validated_categories' => count($validation_results),
                    'validation_timestamp' => current_time('mysql')
                ],
                'message' => 'Settings validation completed'
            ], 200);

        } catch (\Exception $e) {
            return new WP_REST_Response([
                'success' => false,
                'error' => 'Settings validation failed: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * Get settings schema for all categories
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response Response object
     */
    public function get_settings_schema(WP_REST_Request $request): WP_REST_Response {
        try {
            $categories = $request->get_param('categories') ?? array_keys($this->setting_categories);

            $schema_data = [];

            foreach ($categories as $category) {
                if (!isset($this->setting_categories[$category])) {
                    continue;
                }

                if (isset($this->seo_managers[$category])) {
                    $schema_data[$category] = [
                        'schema' => $this->seo_managers[$category]->get_settings_schema($category),
                        'defaults' => $this->seo_managers[$category]->get_default_settings($category),
                        'category_name' => $this->setting_categories[$category]
                    ];
                } else {
                    $schema_data[$category] = [
                        'schema' => [],
                        'defaults' => [],
                        'category_name' => $this->setting_categories[$category]
                    ];
                }
            }

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'schema' => $schema_data,
                    'categories' => $this->setting_categories,
                    'schema_version' => $this->get_schema_version(),
                    'generated_at' => current_time('mysql')
                ],
                'message' => 'Settings schema retrieved successfully'
            ], 200);

        } catch (\Exception $e) {
            return new WP_REST_Response([
                'success' => false,
                'error' => 'Failed to retrieve settings schema: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * Export settings
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function export_settings(WP_REST_Request $request) {
        try {
            $categories = $request->get_param('categories') ?? array_keys($this->setting_categories);
            $format = $request->get_param('format') ?? 'json';
            $include_metadata = $request->get_param('include_metadata') ?? true;

            // Validate format
            if (!in_array($format, ['json', 'yaml', 'xml'], true)) {
                return new WP_Error(
                    'invalid_format',
                    'Invalid export format. Supported formats: json, yaml, xml',
                    ['status' => 400]
                );
            }

            $export_data = [];

            // Export settings for each category
            foreach ($categories as $category) {
                if (!isset($this->setting_categories[$category])) {
                    continue;
                }

                $export_data[$category] = $this->settings_manager->get_settings($category);
            }

            // Add metadata if requested
            $metadata = [];
            if ($include_metadata) {
                $metadata = [
                    'export_timestamp' => current_time('mysql'),
                    'export_version' => $this->get_settings_version(),
                    'wordpress_version' => get_bloginfo('version'),
                    'thinkrank_version' => '1.0.0',
                    'site_url' => home_url(),
                    'exported_categories' => $categories
                ];
            }

            // Format export data
            $formatted_export = $this->format_export_data($export_data, $metadata, $format);

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'export_data' => $formatted_export,
                    'format' => $format,
                    'metadata' => $metadata,
                    'exported_categories' => count($export_data)
                ],
                'message' => 'Settings exported successfully'
            ], 200);

        } catch (\Exception $e) {
            return new WP_Error(
                'export_failed',
                'Settings export failed: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Import settings
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function import_settings(WP_REST_Request $request) {
        try {
            $import_data = $request->get_param('import_data');
            $format = $request->get_param('format') ?? 'json';
            $validate_before_import = $request->get_param('validate') ?? true;
            $overwrite_existing = $request->get_param('overwrite_existing') ?? false;

            // Validate import data
            if (empty($import_data)) {
                return new WP_Error(
                    'missing_import_data',
                    'Import data is required',
                    ['status' => 400]
                );
            }

            // Parse import data based on format
            $parsed_data = $this->parse_import_data($import_data, $format);

            if (!$parsed_data) {
                return new WP_Error(
                    'invalid_import_data',
                    'Failed to parse import data',
                    ['status' => 400]
                );
            }

            $import_results = [];
            $validation_results = [];

            // Validate imported settings if requested
            if ($validate_before_import) {
                foreach ($parsed_data as $category => $category_settings) {
                    if (!isset($this->setting_categories[$category])) {
                        continue;
                    }

                    if (isset($this->seo_managers[$category])) {
                        $validation = $this->seo_managers[$category]->validate_settings($category_settings);
                        $validation_results[$category] = $validation;

                        if (!$validation['valid']) {
                            return new WP_Error(
                                'import_validation_failed',
                                "Import validation failed for category: {$category}",
                                [
                                    'status' => 400,
                                    'validation_results' => $validation_results
                                ]
                            );
                        }
                    }
                }
            }

            // Import settings for each category
            foreach ($parsed_data as $category => $category_settings) {
                if (!isset($this->setting_categories[$category])) {
                    $import_results[$category] = [
                        'success' => false,
                        'error' => 'Invalid category'
                    ];
                    continue;
                }

                try {
                    // Check if settings exist and handle overwrite
                    $existing_settings = $this->settings_manager->get_settings($category);

                    if (!empty($existing_settings) && !$overwrite_existing) {
                        $import_results[$category] = [
                            'success' => false,
                            'error' => 'Settings exist and overwrite is disabled'
                        ];
                        continue;
                    }

                    // Import settings
                    $import_success = $this->settings_manager->update_settings($category_settings, $category);

                    // Also update through specific SEO manager if available
                    if (isset($this->seo_managers[$category])) {
                        $manager_update = $this->seo_managers[$category]->save_settings('site', null, $category_settings);
                        $import_success = $import_success && $manager_update;
                    }

                    $import_results[$category] = [
                        'success' => $import_success,
                        'settings_count' => count($category_settings)
                    ];

                } catch (\Exception $e) {
                    $import_results[$category] = [
                        'success' => false,
                        'error' => $e->getMessage()
                    ];
                }
            }

            // Update settings metadata
            $this->update_settings_metadata();

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'import_results' => $import_results,
                    'validation_results' => $validation_results,
                    'imported_categories' => count($import_results),
                    'successful_imports' => count(array_filter($import_results, function($result) {
                        return $result['success'];
                    }))
                ],
                'message' => 'Settings import completed'
            ], 200);

        } catch (\Exception $e) {
            return new WP_Error(
                'import_failed',
                'Settings import failed: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Create settings backup
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function create_settings_backup(WP_REST_Request $request) {
        try {
            $backup_name = $request->get_param('backup_name') ?? 'backup_' . gmdate('Y-m-d_H-i-s');
            $categories = $request->get_param('categories') ?? array_keys($this->setting_categories);
            $description = $request->get_param('description') ?? '';

            // Create backup data
            $backup_data = [];
            foreach ($categories as $category) {
                if (isset($this->setting_categories[$category])) {
                    $backup_data[$category] = $this->settings_manager->get_settings($category);
                }
            }

            // Create backup metadata
            $backup_metadata = [
                'backup_name' => $backup_name,
                'description' => $description,
                'created_at' => current_time('mysql'),
                'created_by' => get_current_user_id(),
                'categories' => $categories,
                'settings_version' => $this->get_settings_version(),
                'wordpress_version' => get_bloginfo('version')
            ];

            // Save backup
            $backup_id = $this->save_settings_backup($backup_data, $backup_metadata);

            if (!$backup_id) {
                return new WP_Error(
                    'backup_failed',
                    'Failed to create settings backup',
                    ['status' => 500]
                );
            }

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'backup_id' => $backup_id,
                    'backup_name' => $backup_name,
                    'backup_metadata' => $backup_metadata,
                    'backed_up_categories' => count($backup_data)
                ],
                'message' => 'Settings backup created successfully'
            ], 200);

        } catch (\Exception $e) {
            return new WP_Error(
                'backup_failed',
                'Settings backup failed: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Restore settings from backup
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function restore_settings_backup(WP_REST_Request $request) {
        try {
            $backup_id = $request->get_param('backup_id');
            $categories = $request->get_param('categories') ?? null;
            $create_restore_point = $request->get_param('create_restore_point') ?? true;

            // Validate backup ID
            if (empty($backup_id)) {
                return new WP_Error(
                    'missing_backup_id',
                    'Backup ID is required',
                    ['status' => 400]
                );
            }

            // Load backup data
            $backup_data = $this->load_settings_backup($backup_id);

            if (!$backup_data) {
                return new WP_Error(
                    'backup_not_found',
                    'Backup not found or could not be loaded',
                    ['status' => 404]
                );
            }

            // Create restore point if requested
            $restore_point_id = null;
            if ($create_restore_point) {
                $restore_point_id = $this->create_restore_point();
            }

            $restore_results = [];

            // Determine categories to restore
            $categories_to_restore = $categories ?? array_keys($backup_data['settings']);

            // Restore settings for each category
            foreach ($categories_to_restore as $category) {
                if (!isset($backup_data['settings'][$category])) {
                    $restore_results[$category] = [
                        'success' => false,
                        'error' => 'Category not found in backup'
                    ];
                    continue;
                }

                try {
                    $category_settings = $backup_data['settings'][$category];

                    // Restore settings
                    $restore_success = $this->settings_manager->update_settings($category_settings, $category);

                    // Also update through specific SEO manager if available
                    if (isset($this->seo_managers[$category])) {
                        $manager_update = $this->seo_managers[$category]->save_settings('site', null, $category_settings);
                        $restore_success = $restore_success && $manager_update;
                    }

                    $restore_results[$category] = [
                        'success' => $restore_success,
                        'settings_count' => count($category_settings)
                    ];

                } catch (\Exception $e) {
                    $restore_results[$category] = [
                        'success' => false,
                        'error' => $e->getMessage()
                    ];
                }
            }

            // Update settings metadata
            $this->update_settings_metadata();

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'backup_id' => $backup_id,
                    'restore_point_id' => $restore_point_id,
                    'restore_results' => $restore_results,
                    'restored_categories' => count($restore_results),
                    'backup_metadata' => $backup_data['metadata']
                ],
                'message' => 'Settings restored from backup successfully'
            ], 200);

        } catch (\Exception $e) {
            return new WP_Error(
                'restore_failed',
                'Settings restore failed: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Detect settings conflicts
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response Response object
     */
    public function detect_settings_conflicts(WP_REST_Request $request): WP_REST_Response {
        try {
            $categories = $request->get_param('categories') ?? array_keys($this->setting_categories);

            // Get all settings for analysis
            $all_settings = [];
            foreach ($categories as $category) {
                if (isset($this->setting_categories[$category])) {
                    $all_settings[$category] = $this->settings_manager->get_settings($category);
                }
            }

            // Analyze conflicts
            $conflicts = $this->analyze_cross_category_conflicts($all_settings);

            // Get conflict resolution suggestions
            $resolution_suggestions = $this->generate_conflict_resolution_suggestions($conflicts);

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'conflicts' => $conflicts,
                    'resolution_suggestions' => $resolution_suggestions,
                    'analyzed_categories' => count($all_settings),
                    'conflict_count' => count($conflicts),
                    'analysis_timestamp' => current_time('mysql')
                ],
                'message' => 'Settings conflicts analysis completed'
            ], 200);

        } catch (\Exception $e) {
            return new WP_REST_Response([
                'success' => false,
                'error' => 'Conflict detection failed: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * Resolve settings conflicts
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function resolve_settings_conflicts(WP_REST_Request $request) {
        try {
            $resolutions = $request->get_param('resolutions');

            // Validate resolutions
            if (empty($resolutions) || !is_array($resolutions)) {
                return new WP_Error(
                    'invalid_resolutions',
                    'Conflict resolutions must be provided as an array',
                    ['status' => 400]
                );
            }

            $resolution_results = [];

            foreach ($resolutions as $resolution) {
                $conflict_id = $resolution['conflict_id'] ?? '';
                $resolution_action = $resolution['action'] ?? '';
                $resolution_data = $resolution['data'] ?? [];

                try {
                    $result = $this->apply_conflict_resolution($conflict_id, $resolution_action, $resolution_data);
                    $resolution_results[$conflict_id] = $result;
                } catch (\Exception $e) {
                    $resolution_results[$conflict_id] = [
                        'success' => false,
                        'error' => $e->getMessage()
                    ];
                }
            }

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'resolution_results' => $resolution_results,
                    'resolved_conflicts' => count($resolution_results),
                    'resolution_timestamp' => current_time('mysql')
                ],
                'message' => 'Settings conflicts resolution completed'
            ], 200);

        } catch (\Exception $e) {
            return new WP_Error(
                'resolution_failed',
                'Conflict resolution failed: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Reset settings to defaults
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function reset_settings(WP_REST_Request $request) {
        try {
            $categories = $request->get_param('categories') ?? array_keys($this->setting_categories);
            $create_backup = $request->get_param('create_backup') ?? true;

            // Create backup before reset if requested
            $backup_id = null;
            if ($create_backup) {
                $backup_id = $this->create_pre_reset_backup($categories);
            }

            $reset_results = [];

            foreach ($categories as $category) {
                if (!isset($this->setting_categories[$category])) {
                    continue;
                }

                try {
                    // Get default settings
                    $default_settings = [];
                    if (isset($this->seo_managers[$category])) {
                        $default_settings = $this->seo_managers[$category]->get_default_settings($category);
                    }

                    // Reset to defaults
                    $reset_success = $this->settings_manager->update_settings($default_settings, $category);

                    // Also reset through specific SEO manager if available
                    if (isset($this->seo_managers[$category])) {
                        $manager_reset = $this->seo_managers[$category]->save_settings('site', null, $default_settings);
                        $reset_success = $reset_success && $manager_reset;
                    }

                    $reset_results[$category] = [
                        'success' => $reset_success,
                        'default_settings_count' => count($default_settings)
                    ];

                } catch (\Exception $e) {
                    $reset_results[$category] = [
                        'success' => false,
                        'error' => $e->getMessage()
                    ];
                }
            }

            // Update settings metadata
            $this->update_settings_metadata();

            return new WP_REST_Response([
                'success' => true,
                'data' => [
                    'reset_results' => $reset_results,
                    'backup_id' => $backup_id,
                    'reset_categories' => count($reset_results),
                    'reset_timestamp' => current_time('mysql')
                ],
                'message' => 'Settings reset to defaults completed'
            ], 200);

        } catch (\Exception $e) {
            return new WP_Error(
                'reset_failed',
                'Settings reset failed: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Bulk operations for settings management
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function bulk_operations(WP_REST_Request $request) {
        try {
            $operation = $request->get_param('operation');
            $items = $request->get_param('items') ?? [];
            $options = $request->get_param('options') ?? [];

            // Validate input
            if (empty($operation) || empty($items)) {
                return new WP_Error(
                    'missing_parameters',
                    'Operation and items are required',
                    ['status' => 400]
                );
            }

            $results = [];
            $errors = [];

            foreach ($items as $item) {
                try {
                    switch ($operation) {
                        case 'validate_settings':
                            $result = $this->validate_category_settings_bulk($item);
                            break;
                        case 'update_settings':
                            $result = $this->update_category_settings_bulk($item);
                            break;
                        case 'export_settings':
                            $result = $this->export_category_settings_bulk($item);
                            break;
                        case 'reset_settings':
                            $result = $this->reset_category_settings_bulk($item);
                            break;
                        default:
                            throw new \Exception("Unsupported operation: {$operation}");
                    }

                    $results[] = [
                        'item' => $item,
                        'success' => true,
                        'data' => $result
                    ];

                } catch (\Exception $e) {
                    $errors[] = [
                        'item' => $item,
                        'error' => $e->getMessage()
                    ];
                }
            }

            return new WP_REST_Response([
                'success' => empty($errors),
                'data' => [
                    'results' => $results,
                    'errors' => $errors,
                    'total_processed' => count($items),
                    'successful' => count($results),
                    'failed' => count($errors)
                ],
                'message' => "Bulk {$operation} operation completed"
            ], 200);

        } catch (\Exception $e) {
            return new WP_Error(
                'bulk_operation_failed',
                'Bulk operation failed: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Add performance indexes to database tables
     *
     * @since 1.0.0
     *
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object
     */
    public function add_performance_indexes(WP_REST_Request $request): WP_REST_Response|WP_Error {
        try {
            // Import the Database_Schema class
            if (!class_exists('ThinkRank\\Database\\Database_Schema')) {
                require_once THINKRANK_PLUGIN_DIR . 'includes/database/class-database-schema.php';
            }

            $schema = new \ThinkRank\Database\Database_Schema();
            $success = $schema->add_performance_indexes();

            if ($success) {
                return new WP_REST_Response([
                    'success' => true,
                    'message' => 'Performance indexes added successfully',
                    'data' => [
                        'indexes_added' => true,
                        'timestamp' => current_time('mysql')
                    ]
                ], 200);
            } else {
                return new WP_REST_Response([
                    'success' => false,
                    'message' => 'Some performance indexes could not be added. Check error logs for details.',
                    'data' => [
                        'indexes_added' => false,
                        'timestamp' => current_time('mysql')
                    ]
                ], 200);
            }

        } catch (\Exception $e) {
            return new WP_Error(
                'performance_indexes_failed',
                'Failed to add performance indexes: ' . $e->getMessage(),
                ['status' => 500]
            );
        }
    }

    /**
     * Permission callbacks
     */

    /**
     * Check permissions for reading settings data
     *
     * @since 1.0.0
     *
     * @return bool Permission status
     */
    public function check_read_permissions(): bool {
        return current_user_can('read');
    }

    /**
     * Check permissions for managing settings
     *
     * @since 1.0.0
     *
     * @return bool Permission status
     */
    public function check_manage_permissions(): bool {
        return current_user_can('manage_options');
    }

    /**
     * Helper methods
     */

    /**
     * Get last settings update timestamp
     *
     * @since 1.0.0
     *
     * @return string|null Last update timestamp
     */
    private function get_last_settings_update(): ?string {
        $result = get_option('thinkrank_settings_last_updated');
        return $result !== false ? $result : null;
    }

    /**
     * Get settings version
     *
     * @since 1.0.0
     *
     * @return string Settings version
     */
    private function get_settings_version(): string {
        return get_option('thinkrank_settings_version', '1.0.0');
    }

    /**
     * Get schema version
     *
     * @since 1.0.0
     *
     * @return string Schema version
     */
    private function get_schema_version(): string {
        return get_option('thinkrank_schema_version', '1.0.0');
    }

    /**
     * Get category last update timestamp
     *
     * @since 1.0.0
     *
     * @param string $category Category name
     * @return string|null Last update timestamp
     */
    private function get_category_last_update(string $category): ?string {
        $result = get_option("thinkrank_settings_{$category}_last_updated");
        return $result !== false ? $result : null;
    }

    /**
     * Update settings metadata
     *
     * @since 1.0.0
     */
    private function update_settings_metadata(): void {
        update_option('thinkrank_settings_last_updated', current_time('mysql'));

        // Increment version
        $current_version = $this->get_settings_version();
        $version_parts = explode('.', $current_version);
        $version_parts[2] = (int)$version_parts[2] + 1;
        $new_version = implode('.', $version_parts);

        update_option('thinkrank_settings_version', $new_version);
    }

    /**
     * Update category metadata
     *
     * @since 1.0.0
     *
     * @param string $category Category name
     */
    private function update_category_metadata(string $category): void {
        update_option("thinkrank_settings_{$category}_last_updated", current_time('mysql'));
    }

    /**
     * Analyze cross-category conflicts
     *
     * @since 1.0.0
     *
     * @param array $settings Settings data
     * @return array Conflict analysis
     */
    private function analyze_cross_category_conflicts(array $settings): array {
        $conflicts = [];

        // Example conflict detection logic
        // This would be enhanced with actual conflict detection algorithms

        // Check for conflicting meta title settings
        $title_conflicts = $this->detect_title_conflicts($settings);
        if (!empty($title_conflicts)) {
            $conflicts = array_merge($conflicts, $title_conflicts);
        }

        // Check for conflicting schema settings
        $schema_conflicts = $this->detect_schema_conflicts($settings);
        if (!empty($schema_conflicts)) {
            $conflicts = array_merge($conflicts, $schema_conflicts);
        }

        return $conflicts;
    }

    /**
     * Format export data
     *
     * @since 1.0.0
     *
     * @param array  $export_data Export data
     * @param array  $metadata    Metadata
     * @param string $format      Export format
     * @return string Formatted export data
     */
    private function format_export_data(array $export_data, array $metadata, string $format): string {
        $full_export = [
            'metadata' => $metadata,
            'settings' => $export_data
        ];

        switch ($format) {
            case 'json':
                return wp_json_encode($full_export, JSON_PRETTY_PRINT);
            case 'yaml':
                // Would implement YAML formatting
                return wp_json_encode($full_export, JSON_PRETTY_PRINT);
            case 'xml':
                // Would implement XML formatting
                return wp_json_encode($full_export, JSON_PRETTY_PRINT);
            default:
                return wp_json_encode($full_export, JSON_PRETTY_PRINT);
        }
    }

    /**
     * Parse import data
     *
     * @since 1.0.0
     *
     * @param string $import_data Import data
     * @param string $format      Import format
     * @return array|false Parsed data or false on failure
     */
    private function parse_import_data(string $import_data, string $format) {
        switch ($format) {
            case 'json':
                $decoded = json_decode($import_data, true);
                return $decoded['settings'] ?? $decoded;
            case 'yaml':
                // Would implement YAML parsing
                $decoded = json_decode($import_data, true);
                return $decoded['settings'] ?? $decoded;
            case 'xml':
                // Would implement XML parsing
                $decoded = json_decode($import_data, true);
                return $decoded['settings'] ?? $decoded;
            default:
                return false;
        }
    }

    /**
     * Save settings backup
     *
     * @since 1.0.0
     *
     * @param array $backup_data     Backup data
     * @param array $backup_metadata Backup metadata
     * @return string|false Backup ID or false on failure
     */
    private function save_settings_backup(array $backup_data, array $backup_metadata) {
        $backup_id = uniqid('backup_', true);

        $backup_record = [
            'backup_id' => $backup_id,
            'metadata' => $backup_metadata,
            'settings' => $backup_data
        ];

        $saved = update_option("thinkrank_backup_{$backup_id}", $backup_record);

        if ($saved) {
            // Add to backup index
            $backup_index = get_option('thinkrank_backup_index', []);
            $backup_index[$backup_id] = $backup_metadata;
            update_option('thinkrank_backup_index', $backup_index);

            return $backup_id;
        }

        return false;
    }

    /**
     * Load settings backup
     *
     * @since 1.0.0
     *
     * @param string $backup_id Backup ID
     * @return array|false Backup data or false on failure
     */
    private function load_settings_backup(string $backup_id) {
        return get_option("thinkrank_backup_{$backup_id}", false);
    }

    /**
     * Argument validation methods
     */

    /**
     * Get arguments for global settings endpoints
     *
     * @since 1.0.0
     *
     * @return array Arguments array
     */
    private function get_global_settings_args(): array {
        return [
            'settings' => [
                'required' => true,
                'type' => 'object',
                'description' => 'Global settings to update across categories'
            ],
            'validate' => [
                'required' => false,
                'type' => 'boolean',
                'default' => true,
                'description' => 'Whether to validate settings before updating'
            ]
        ];
    }

    /**
     * Get arguments for category settings endpoints
     *
     * @since 1.0.0
     *
     * @return array Arguments array
     */
    private function get_category_settings_args(): array {
        return [
            'settings' => [
                'required' => true,
                'type' => 'object',
                'description' => 'Category settings to update'
            ],
            'validate' => [
                'required' => false,
                'type' => 'boolean',
                'default' => true,
                'description' => 'Whether to validate settings before updating'
            ]
        ];
    }

    /**
     * Get arguments for validation endpoint
     *
     * @since 1.0.0
     *
     * @return array Arguments array
     */
    private function get_validation_args(): array {
        return [
            'settings' => [
                'required' => true,
                'type' => 'object',
                'description' => 'Settings to validate'
            ],
            'categories' => [
                'required' => false,
                'type' => 'array',
                'items' => [
                    'type' => 'string',
                    'enum' => array_keys($this->setting_categories)
                ],
                'description' => 'Categories to validate'
            ]
        ];
    }

    /**
     * Get arguments for export endpoint
     *
     * @since 1.0.0
     *
     * @return array Arguments array
     */
    private function get_export_args(): array {
        return [
            'categories' => [
                'required' => false,
                'type' => 'array',
                'items' => [
                    'type' => 'string',
                    'enum' => array_keys($this->setting_categories)
                ],
                'description' => 'Categories to export'
            ],
            'format' => [
                'required' => false,
                'type' => 'string',
                'enum' => ['json', 'yaml', 'xml'],
                'default' => 'json',
                'description' => 'Export format'
            ],
            'include_metadata' => [
                'required' => false,
                'type' => 'boolean',
                'default' => true,
                'description' => 'Whether to include metadata in export'
            ]
        ];
    }

    /**
     * Get arguments for import endpoint
     *
     * @since 1.0.0
     *
     * @return array Arguments array
     */
    private function get_import_args(): array {
        return [
            'import_data' => [
                'required' => true,
                'type' => 'string',
                'description' => 'Settings data to import'
            ],
            'format' => [
                'required' => false,
                'type' => 'string',
                'enum' => ['json', 'yaml', 'xml'],
                'default' => 'json',
                'description' => 'Import format'
            ],
            'validate' => [
                'required' => false,
                'type' => 'boolean',
                'default' => true,
                'description' => 'Whether to validate before importing'
            ],
            'overwrite_existing' => [
                'required' => false,
                'type' => 'boolean',
                'default' => false,
                'description' => 'Whether to overwrite existing settings'
            ]
        ];
    }

    /**
     * Get arguments for backup endpoint
     *
     * @since 1.0.0
     *
     * @return array Arguments array
     */
    private function get_backup_args(): array {
        return [
            'backup_name' => [
                'required' => false,
                'type' => 'string',
                'description' => 'Name for the backup'
            ],
            'categories' => [
                'required' => false,
                'type' => 'array',
                'items' => [
                    'type' => 'string',
                    'enum' => array_keys($this->setting_categories)
                ],
                'description' => 'Categories to backup'
            ],
            'description' => [
                'required' => false,
                'type' => 'string',
                'description' => 'Backup description'
            ]
        ];
    }

    /**
     * Get arguments for restore endpoint
     *
     * @since 1.0.0
     *
     * @return array Arguments array
     */
    private function get_restore_args(): array {
        return [
            'backup_id' => [
                'required' => true,
                'type' => 'string',
                'description' => 'Backup ID to restore from'
            ],
            'categories' => [
                'required' => false,
                'type' => 'array',
                'items' => [
                    'type' => 'string',
                    'enum' => array_keys($this->setting_categories)
                ],
                'description' => 'Categories to restore'
            ],
            'create_restore_point' => [
                'required' => false,
                'type' => 'boolean',
                'default' => true,
                'description' => 'Whether to create restore point before restoring'
            ]
        ];
    }

    /**
     * Get arguments for conflict resolution endpoint
     *
     * @since 1.0.0
     *
     * @return array Arguments array
     */
    private function get_conflict_resolution_args(): array {
        return [
            'resolutions' => [
                'required' => true,
                'type' => 'array',
                'items' => [
                    'type' => 'object'
                ],
                'description' => 'Conflict resolutions to apply'
            ]
        ];
    }

    /**
     * Get arguments for reset endpoint
     *
     * @since 1.0.0
     *
     * @return array Arguments array
     */
    private function get_reset_args(): array {
        return [
            'categories' => [
                'required' => false,
                'type' => 'array',
                'items' => [
                    'type' => 'string',
                    'enum' => array_keys($this->setting_categories)
                ],
                'description' => 'Categories to reset'
            ],
            'create_backup' => [
                'required' => false,
                'type' => 'boolean',
                'default' => true,
                'description' => 'Whether to create backup before reset'
            ]
        ];
    }

    /**
     * Get arguments for bulk operations endpoint
     *
     * @since 1.0.0
     *
     * @return array Arguments array
     */
    private function get_bulk_operations_args(): array {
        return [
            'operation' => [
                'required' => true,
                'type' => 'string',
                'enum' => ['validate_settings', 'update_settings', 'export_settings', 'reset_settings'],
                'description' => 'Bulk operation type'
            ],
            'items' => [
                'required' => true,
                'type' => 'array',
                'items' => [
                    'type' => 'object'
                ],
                'description' => 'Items to process in bulk'
            ],
            'options' => [
                'required' => false,
                'type' => 'object',
                'description' => 'Bulk operation options'
            ]
        ];
    }

    /**
     * Placeholder implementations for methods referenced but not yet implemented
     * These would be enhanced with actual conflict detection and resolution algorithms
     */

    private function detect_title_conflicts(array $settings): array {
        return []; // Would implement actual title conflict detection
    }

    private function detect_schema_conflicts(array $settings): array {
        return []; // Would implement actual schema conflict detection
    }

    private function generate_conflict_resolution_suggestions(array $conflicts): array {
        return []; // Would implement actual resolution suggestions
    }

    private function apply_conflict_resolution(string $conflict_id, string $action, array $data): array {
        return ['success' => true, 'action' => $action]; // Would implement actual resolution
    }

    private function create_restore_point(): string {
        return uniqid('restore_point_', true); // Would implement actual restore point creation
    }

    private function create_pre_reset_backup(array $categories): string {
        return uniqid('pre_reset_backup_', true); // Would implement actual pre-reset backup
    }

    private function validate_category_settings_bulk(array $item): array {
        return ['validation' => 'passed']; // Would implement bulk validation
    }

    private function update_category_settings_bulk(array $item): array {
        return ['update' => 'successful']; // Would implement bulk update
    }

    private function export_category_settings_bulk(array $item): array {
        return ['export' => 'completed']; // Would implement bulk export
    }

    private function reset_category_settings_bulk(array $item): array {
        return ['reset' => 'completed']; // Would implement bulk reset
    }
}

```
