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sklears_compose/plugin_architecture/
functions.rs

1//! Auto-generated module
2//!
3//! 🤖 Generated with [SplitRS](https://github.com/cool-japan/splitrs)
4
5use scirs2_core::ndarray::{Array1, Array2, ArrayView1, ArrayView2};
6use sklears_core::{
7    error::{Result as SklResult, SklearsError},
8    traits::Estimator,
9    types::Float,
10};
11use std::any::Any;
12use std::collections::{HashMap, HashSet};
13use std::fmt::Debug;
14use std::path::PathBuf;
15use std::sync::{Arc, RwLock};
16
17use super::types::{
18    ComponentConfig, ComponentContext, ComponentSchema, ConfigValue, ExampleRegressor,
19    ExampleScaler, ExampleTransformerFactory, ExampleTransformerPlugin, PluginCapability,
20    PluginConfig, PluginContext, PluginLoader, PluginMetadata, PluginRegistry,
21};
22
23/// Base trait for all plugins
24pub trait Plugin: Send + Sync + Debug {
25    /// Get plugin metadata
26    fn metadata(&self) -> &PluginMetadata;
27    /// Initialize the plugin
28    fn initialize(&mut self, context: &PluginContext) -> SklResult<()>;
29    /// Shutdown the plugin
30    fn shutdown(&mut self) -> SklResult<()>;
31    /// Get plugin capabilities
32    fn capabilities(&self) -> Vec<PluginCapability>;
33    /// Create a component instance
34    fn create_component(
35        &self,
36        component_type: &str,
37        config: &ComponentConfig,
38    ) -> SklResult<Box<dyn PluginComponent>>;
39    /// Validate plugin configuration
40    fn validate_config(&self, config: &ComponentConfig) -> SklResult<()>;
41    /// Get component schema for validation
42    fn get_component_schema(&self, component_type: &str) -> Option<ComponentSchema>;
43}
44/// Base trait for plugin components
45pub trait PluginComponent: Send + Sync + Debug {
46    /// Get component type
47    fn component_type(&self) -> &str;
48    /// Get component configuration
49    fn config(&self) -> &ComponentConfig;
50    /// Initialize component
51    fn initialize(&mut self, context: &ComponentContext) -> SklResult<()>;
52    /// Clone the component
53    fn clone_component(&self) -> Box<dyn PluginComponent>;
54    /// Convert to Any for downcasting
55    fn as_any(&self) -> &dyn Any;
56    /// Convert to mutable Any for downcasting
57    fn as_any_mut(&mut self) -> &mut dyn Any;
58}
59/// Plugin-based transformer
60pub trait PluginTransformer: PluginComponent {
61    /// Fit the transformer
62    fn fit(
63        &mut self,
64        x: &ArrayView2<'_, Float>,
65        y: Option<&ArrayView1<'_, Float>>,
66    ) -> SklResult<()>;
67    /// Transform data
68    fn transform(&self, x: &ArrayView2<'_, Float>) -> SklResult<Array2<f64>>;
69    /// Fit and transform in one step
70    fn fit_transform(
71        &mut self,
72        x: &ArrayView2<'_, Float>,
73        y: Option<&ArrayView1<'_, Float>>,
74    ) -> SklResult<Array2<f64>> {
75        self.fit(x, y)?;
76        self.transform(x)
77    }
78    /// Check if transformer is fitted
79    fn is_fitted(&self) -> bool;
80    /// Get feature names output
81    fn get_feature_names_out(&self, input_features: Option<&[String]>) -> Vec<String>;
82}
83/// Plugin-based estimator
84pub trait PluginEstimator: PluginComponent {
85    /// Fit the estimator
86    fn fit(&mut self, x: &ArrayView2<'_, Float>, y: &ArrayView1<'_, Float>) -> SklResult<()>;
87    /// Predict using the fitted estimator
88    fn predict(&self, x: &ArrayView2<'_, Float>) -> SklResult<Array1<f64>>;
89    /// Predict probabilities (for classifiers)
90    fn predict_proba(&self, x: &ArrayView2<'_, Float>) -> SklResult<Array2<f64>> {
91        Err(SklearsError::InvalidOperation(
92            "predict_proba not implemented for this estimator".to_string(),
93        ))
94    }
95    /// Score the estimator
96    fn score(&self, x: &ArrayView2<'_, Float>, y: &ArrayView1<'_, Float>) -> SklResult<f64>;
97    /// Check if estimator is fitted
98    fn is_fitted(&self) -> bool;
99    /// Get feature importance (if available)
100    fn feature_importances(&self) -> Option<Array1<f64>> {
101        None
102    }
103}
104/// Component factory for creating plugin instances
105pub trait ComponentFactory: Send + Sync + Debug {
106    /// Create a component
107    fn create(
108        &self,
109        component_type: &str,
110        config: &ComponentConfig,
111    ) -> SklResult<Box<dyn PluginComponent>>;
112    /// List available component types
113    fn available_types(&self) -> Vec<String>;
114    /// Get component schema
115    fn get_schema(&self, component_type: &str) -> Option<ComponentSchema>;
116}
117#[allow(non_snake_case)]
118#[cfg(test)]
119mod tests {
120    use super::*;
121    use scirs2_core::ndarray::array;
122    #[test]
123    fn test_plugin_registry_creation() {
124        let config = PluginConfig::default();
125        let registry = PluginRegistry::new(config);
126        assert!(registry.list_plugins().unwrap_or_default().is_empty());
127    }
128    #[test]
129    fn test_plugin_registration() {
130        let config = PluginConfig::default();
131        let registry = PluginRegistry::new(config);
132        let plugin = Box::new(ExampleTransformerPlugin::new());
133        let factory = Box::new(ExampleTransformerFactory::new());
134        registry
135            .register_plugin("test_plugin", plugin, factory)
136            .unwrap_or_default();
137        let plugins = registry.list_plugins().unwrap_or_default();
138        assert_eq!(plugins.len(), 1);
139        assert!(plugins.contains(&"test_plugin".to_string()));
140    }
141    #[test]
142    fn test_component_creation() {
143        let config = PluginConfig::default();
144        let registry = PluginRegistry::new(config);
145        let plugin = Box::new(ExampleTransformerPlugin::new());
146        let factory = Box::new(ExampleTransformerFactory::new());
147        registry
148            .register_plugin("test_plugin", plugin, factory)
149            .unwrap_or_default();
150        let component_config = ComponentConfig {
151            component_type: "example_scaler".to_string(),
152            parameters: {
153                let mut params = HashMap::new();
154                params.insert("scale_factor".to_string(), ConfigValue::Float(2.0));
155                params
156            },
157            metadata: HashMap::new(),
158        };
159        let component = registry
160            .create_component("test_plugin", "example_scaler", &component_config)
161            .expect("operation should succeed");
162        assert_eq!(component.component_type(), "example_scaler");
163    }
164    #[test]
165    fn test_example_scaler() {
166        let config = ComponentConfig {
167            component_type: "example_scaler".to_string(),
168            parameters: {
169                let mut params = HashMap::new();
170                params.insert("scale_factor".to_string(), ConfigValue::Float(2.0));
171                params
172            },
173            metadata: HashMap::new(),
174        };
175        let mut scaler = ExampleScaler::new(config);
176        let x = array![[1.0, 2.0], [3.0, 4.0]];
177        scaler.fit(&x.view(), None).unwrap_or_default();
178        assert!(scaler.is_fitted());
179        let transformed = scaler.transform(&x.view()).unwrap_or_default();
180        assert_eq!(transformed, array![[2.0, 4.0], [6.0, 8.0]]);
181    }
182    #[test]
183    fn test_example_regressor() {
184        let config = ComponentConfig {
185            component_type: "example_regressor".to_string(),
186            parameters: {
187                let mut params = HashMap::new();
188                params.insert("learning_rate".to_string(), ConfigValue::Float(0.001));
189                params
190            },
191            metadata: HashMap::new(),
192        };
193        let mut regressor = ExampleRegressor::new(config);
194        let x = array![[1.0, 2.0], [3.0, 4.0], [5.0, 6.0]];
195        let y = array![3.0, 7.0, 11.0];
196        regressor.fit(&x.view(), &y.view()).unwrap_or_default();
197        assert!(regressor.is_fitted());
198        let predictions = regressor.predict(&x.view()).unwrap_or_default();
199        assert_eq!(predictions.len(), 3);
200        let score = regressor.score(&x.view(), &y.view()).unwrap_or_default();
201        assert!(score > -1.0);
202    }
203    #[test]
204    fn test_plugin_loader() {
205        let config = PluginConfig::default();
206        let registry = PluginRegistry::new(config.clone());
207        let mut loader = PluginLoader::new(config);
208        loader.load_example_plugins(&registry).unwrap_or_default();
209        let plugins = registry.list_plugins().unwrap_or_default();
210        assert_eq!(plugins.len(), 2);
211        assert!(plugins.contains(&"example_transformer".to_string()));
212        assert!(plugins.contains(&"example_estimator".to_string()));
213    }
214    #[test]
215    fn test_component_schema() {
216        let plugin = ExampleTransformerPlugin::new();
217        let schema = plugin
218            .get_component_schema("example_scaler")
219            .expect("operation should succeed");
220        assert_eq!(schema.name, "ExampleScaler");
221        assert_eq!(schema.required_parameters.len(), 0);
222        assert_eq!(schema.optional_parameters.len(), 1);
223        assert_eq!(schema.optional_parameters[0].name, "scale_factor");
224    }
225    #[test]
226    fn test_plugin_dependencies() {
227        let config = PluginConfig::default();
228        let registry = PluginRegistry::new(config);
229        let metadata = PluginMetadata {
230            name: "Dependent Plugin".to_string(),
231            version: "1.0.0".to_string(),
232            description: "Plugin with dependencies".to_string(),
233            author: "Test".to_string(),
234            license: "MIT".to_string(),
235            min_api_version: "1.0.0".to_string(),
236            dependencies: vec!["nonexistent_plugin".to_string()],
237            capabilities: vec!["transformer".to_string()],
238            tags: vec![],
239            documentation_url: None,
240            source_url: None,
241        };
242        let plugin = ExampleTransformerPlugin::with_metadata(metadata);
243        let factory = Box::new(ExampleTransformerFactory::new());
244        let result = registry.register_plugin("dependent_plugin", Box::new(plugin), factory);
245        assert!(result.is_err());
246    }
247}
248/// Advanced plugin management system with hot-loading and versioning
249pub mod advanced_plugin_system {
250    use super::{
251        Arc, Debug, HashMap, HashSet, PathBuf, PluginConfig, PluginLoader, PluginRegistry, RwLock,
252        SklResult, SklearsError,
253    };
254    use std::sync::atomic::{AtomicBool, Ordering};
255    use std::thread;
256    use std::time::{Duration, SystemTime};
257    /// Advanced plugin manager with hot-loading capabilities
258    pub struct AdvancedPluginManager {
259        registry: Arc<PluginRegistry>,
260        loader: PluginLoader,
261        watcher: Option<PluginWatcher>,
262        version_manager: VersionManager,
263        security_manager: SecurityManager,
264        performance_monitor: PerformanceMonitor,
265        marketplace: PluginMarketplace,
266    }
267    /// Plugin watcher for hot-loading
268    pub struct PluginWatcher {
269        watched_dirs: Vec<PathBuf>,
270        running: Arc<AtomicBool>,
271        poll_interval: Duration,
272    }
273    /// Version management for plugins
274    #[derive(Debug)]
275    pub struct VersionManager {
276        installed_versions: HashMap<String, Vec<SemanticVersion>>,
277        active_versions: HashMap<String, SemanticVersion>,
278        compatibility_matrix: HashMap<String, Vec<VersionConstraint>>,
279    }
280    /// Semantic version representation
281    #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
282    pub struct SemanticVersion {
283        pub major: u32,
284        pub minor: u32,
285        pub patch: u32,
286        pub pre_release: Option<String>,
287        pub build_metadata: Option<String>,
288    }
289    /// Version constraint for dependency resolution
290    #[derive(Debug, Clone)]
291    pub struct VersionConstraint {
292        pub plugin_name: String,
293        pub constraint_type: ConstraintType,
294        pub version: SemanticVersion,
295    }
296    /// Types of version constraints
297    #[derive(Debug, Clone, PartialEq)]
298    pub enum ConstraintType {
299        /// Exact
300        Exact,
301        /// GreaterThan
302        GreaterThan,
303        /// GreaterOrEqual
304        GreaterOrEqual,
305        /// LessThan
306        LessThan,
307        /// LessOrEqual
308        LessOrEqual,
309        /// Compatible
310        Compatible,
311        /// Tilde
312        Tilde,
313    }
314    /// Security manager for plugin sandboxing
315    #[derive(Debug)]
316    pub struct SecurityManager {
317        sandbox_enabled: bool,
318        allowed_capabilities: HashSet<String>,
319        security_policies: HashMap<String, SecurityPolicy>,
320        threat_detection: ThreatDetector,
321    }
322    /// Security policy for plugins
323    #[derive(Debug, Clone)]
324    pub struct SecurityPolicy {
325        pub plugin_name: String,
326        pub allowed_operations: HashSet<PluginOperation>,
327        pub resource_limits: SecurityResourceLimits,
328        pub network_access: NetworkAccess,
329        pub file_system_access: FileSystemAccess,
330    }
331    /// Allowed plugin operations
332    #[derive(Debug, Clone, PartialEq, Eq, Hash)]
333    pub enum PluginOperation {
334        /// ReadData
335        ReadData,
336        /// WriteData
337        WriteData,
338        /// NetworkRequest
339        NetworkRequest,
340        /// FileRead
341        FileRead,
342        /// FileWrite
343        FileWrite,
344        /// ProcessSpawn
345        ProcessSpawn,
346        /// SystemCall
347        SystemCall,
348        /// DatabaseAccess
349        DatabaseAccess,
350        /// EnvironmentAccess
351        EnvironmentAccess,
352    }
353    /// Security resource limits
354    #[derive(Debug, Clone)]
355    pub struct SecurityResourceLimits {
356        pub max_memory: Option<usize>,
357        pub max_cpu_time: Option<Duration>,
358        pub max_network_bandwidth: Option<usize>,
359        pub max_file_descriptors: Option<usize>,
360    }
361    /// Network access control
362    #[derive(Debug, Clone)]
363    pub enum NetworkAccess {
364        None,
365        /// Limited
366        Limited(Vec<String>),
367        /// Full
368        Full,
369    }
370    /// File system access control
371    #[derive(Debug, Clone)]
372    pub enum FileSystemAccess {
373        None,
374        /// ReadOnly
375        ReadOnly(Vec<PathBuf>),
376        /// Limited
377        Limited(Vec<PathBuf>),
378        /// Full
379        Full,
380    }
381    /// Threat detection system
382    #[derive(Debug)]
383    pub struct ThreatDetector {
384        suspicious_patterns: Vec<ThreatPattern>,
385        monitoring_enabled: bool,
386        alert_callback: Option<fn(&ThreatAlert)>,
387    }
388    /// Threat pattern definition
389    #[derive(Debug, Clone)]
390    pub struct ThreatPattern {
391        pub pattern_type: ThreatType,
392        pub pattern: String,
393        pub severity: ThreatSeverity,
394        pub description: String,
395    }
396    /// Types of security threats
397    #[derive(Debug, Clone, PartialEq)]
398    pub enum ThreatType {
399        /// SuspiciousCode
400        SuspiciousCode,
401        /// UnauthorizedAccess
402        UnauthorizedAccess,
403        /// ResourceAbuse
404        ResourceAbuse,
405        /// DataExfiltration
406        DataExfiltration,
407        /// MaliciousPayload
408        MaliciousPayload,
409    }
410    /// Threat severity levels
411    #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
412    pub enum ThreatSeverity {
413        Low,
414        Medium,
415        High,
416        Critical,
417    }
418    /// Threat alert
419    #[derive(Debug)]
420    pub struct ThreatAlert {
421        pub plugin_name: String,
422        pub threat_type: ThreatType,
423        pub severity: ThreatSeverity,
424        pub description: String,
425        pub timestamp: SystemTime,
426        pub details: HashMap<String, String>,
427    }
428    /// Performance monitoring for plugins
429    #[derive(Debug)]
430    pub struct PerformanceMonitor {
431        metrics: Arc<RwLock<HashMap<String, PluginMetrics>>>,
432        monitoring_enabled: bool,
433        collection_interval: Duration,
434    }
435    /// Plugin performance metrics
436    #[derive(Debug, Clone)]
437    pub struct PluginMetrics {
438        pub plugin_name: String,
439        pub execution_count: u64,
440        pub total_execution_time: Duration,
441        pub average_execution_time: Duration,
442        pub memory_usage: MemoryUsageStats,
443        pub error_rate: f64,
444        pub last_execution: Option<SystemTime>,
445    }
446    /// Memory usage statistics
447    #[derive(Debug, Clone)]
448    pub struct MemoryUsageStats {
449        pub current_usage: usize,
450        pub peak_usage: usize,
451        pub average_usage: usize,
452        pub allocation_count: u64,
453    }
454    /// Plugin marketplace for discovery and distribution
455    #[derive(Debug)]
456    pub struct PluginMarketplace {
457        repositories: Vec<PluginRepository>,
458        cache: Arc<RwLock<HashMap<String, MarketplaceEntry>>>,
459        update_interval: Duration,
460        last_update: Option<SystemTime>,
461    }
462    /// Plugin repository
463    #[derive(Debug, Clone)]
464    pub struct PluginRepository {
465        pub url: String,
466        pub name: String,
467        pub auth_token: Option<String>,
468        pub trusted: bool,
469        pub priority: u32,
470    }
471    /// Marketplace entry
472    #[derive(Debug, Clone)]
473    pub struct MarketplaceEntry {
474        pub plugin_name: String,
475        pub versions: Vec<PluginVersion>,
476        pub description: String,
477        pub tags: Vec<String>,
478        pub downloads: u64,
479        pub rating: f64,
480        pub last_updated: SystemTime,
481    }
482    /// Plugin version information
483    #[derive(Debug, Clone)]
484    pub struct PluginVersion {
485        pub version: SemanticVersion,
486        pub download_url: String,
487        pub checksum: String,
488        pub size: usize,
489        pub release_notes: String,
490        pub compatibility: Vec<String>,
491    }
492    impl AdvancedPluginManager {
493        /// Create a new advanced plugin manager
494        pub fn new(config: PluginConfig) -> SklResult<Self> {
495            let registry = Arc::new(PluginRegistry::new(config.clone()));
496            let loader = PluginLoader::new(config.clone());
497            let version_manager = VersionManager::new();
498            let security_manager = SecurityManager::new(config.sandbox);
499            let performance_monitor = PerformanceMonitor::new();
500            let marketplace = PluginMarketplace::new();
501            let watcher = if config.auto_load {
502                Some(PluginWatcher::new(config.plugin_dirs))
503            } else {
504                None
505            };
506            Ok(Self {
507                registry,
508                loader,
509                watcher,
510                version_manager,
511                security_manager,
512                performance_monitor,
513                marketplace,
514            })
515        }
516        /// Start the plugin manager with hot-loading
517        pub fn start(&mut self) -> SklResult<()> {
518            self.loader.load_plugins(&self.registry)?;
519            self.registry.initialize_all()?;
520            if let Some(ref mut watcher) = self.watcher {
521                watcher.start(Arc::clone(&self.registry))?;
522            }
523            self.performance_monitor.start_monitoring()?;
524            self.marketplace.update_cache()?;
525            Ok(())
526        }
527        /// Stop the plugin manager
528        pub fn stop(&mut self) -> SklResult<()> {
529            if let Some(ref mut watcher) = self.watcher {
530                watcher.stop();
531            }
532            self.performance_monitor.stop_monitoring()?;
533            self.registry.shutdown_all()?;
534            Ok(())
535        }
536        /// Install a plugin from the marketplace
537        pub fn install_from_marketplace(
538            &mut self,
539            plugin_name: &str,
540            version: Option<&SemanticVersion>,
541        ) -> SklResult<()> {
542            let entry = self.marketplace.find_plugin(plugin_name)?;
543            let target_version = version.unwrap_or(&entry.versions[0].version);
544            self.security_manager
545                .validate_plugin_security(plugin_name)?;
546            let plugin_data = self
547                .marketplace
548                .download_plugin(plugin_name, target_version)?;
549            self.security_manager.scan_plugin(&plugin_data)?;
550            self.version_manager
551                .install_version(plugin_name, target_version.clone())?;
552            Ok(())
553        }
554        /// Upgrade a plugin to a newer version
555        pub fn upgrade_plugin(
556            &mut self,
557            plugin_name: &str,
558            target_version: &SemanticVersion,
559        ) -> SklResult<()> {
560            self.version_manager
561                .check_upgrade_compatibility(plugin_name, target_version)?;
562            self.registry.unregister_plugin(plugin_name)?;
563            self.install_from_marketplace(plugin_name, Some(target_version))?;
564            Ok(())
565        }
566        /// Get plugin performance metrics
567        #[must_use]
568        pub fn get_plugin_metrics(&self, plugin_name: &str) -> Option<PluginMetrics> {
569            self.performance_monitor.get_metrics(plugin_name)
570        }
571        /// Get security report for a plugin
572        #[must_use]
573        pub fn get_security_report(&self, plugin_name: &str) -> SecurityReport {
574            self.security_manager.generate_report(plugin_name)
575        }
576        /// Search marketplace for plugins
577        #[must_use]
578        pub fn search_marketplace(&self, query: &str, tags: &[String]) -> Vec<MarketplaceEntry> {
579            self.marketplace.search(query, tags)
580        }
581    }
582    /// Security report for a plugin
583    #[derive(Debug)]
584    pub struct SecurityReport {
585        pub plugin_name: String,
586        pub security_level: SecurityLevel,
587        pub violations: Vec<SecurityViolation>,
588        pub recommendations: Vec<String>,
589        pub last_scan: Option<SystemTime>,
590    }
591    /// Security level assessment
592    #[derive(Debug, PartialEq, Eq, PartialOrd, Ord)]
593    pub enum SecurityLevel {
594        /// Safe
595        Safe,
596        /// LowRisk
597        LowRisk,
598        /// MediumRisk
599        MediumRisk,
600        /// HighRisk
601        HighRisk,
602        /// Critical
603        Critical,
604    }
605    /// Security violation
606    #[derive(Debug)]
607    pub struct SecurityViolation {
608        pub violation_type: ViolationType,
609        pub description: String,
610        pub severity: ThreatSeverity,
611        pub detected_at: SystemTime,
612    }
613    /// Types of security violations
614    #[derive(Debug)]
615    pub enum ViolationType {
616        /// UnauthorizedFileAccess
617        UnauthorizedFileAccess,
618        /// SuspiciousNetworkActivity
619        SuspiciousNetworkActivity,
620        /// ExcessiveResourceUsage
621        ExcessiveResourceUsage,
622        /// PolicyViolation
623        PolicyViolation,
624        /// MaliciousCode
625        MaliciousCode,
626    }
627    impl PluginWatcher {
628        #[must_use]
629        pub fn new(dirs: Vec<PathBuf>) -> Self {
630            Self {
631                watched_dirs: dirs,
632                running: Arc::new(AtomicBool::new(false)),
633                poll_interval: Duration::from_secs(5),
634            }
635        }
636        pub fn start(&mut self, registry: Arc<PluginRegistry>) -> SklResult<()> {
637            self.running.store(true, Ordering::SeqCst);
638            let running = Arc::clone(&self.running);
639            let dirs = self.watched_dirs.clone();
640            let interval = self.poll_interval;
641            thread::spawn(move || {
642                while running.load(Ordering::SeqCst) {
643                    for dir in &dirs {
644                        if dir.exists() {}
645                    }
646                    thread::sleep(interval);
647                }
648            });
649            Ok(())
650        }
651        pub fn stop(&mut self) {
652            self.running.store(false, Ordering::SeqCst);
653        }
654    }
655    impl Default for VersionManager {
656        fn default() -> Self {
657            Self::new()
658        }
659    }
660    impl VersionManager {
661        #[must_use]
662        pub fn new() -> Self {
663            Self {
664                installed_versions: HashMap::new(),
665                active_versions: HashMap::new(),
666                compatibility_matrix: HashMap::new(),
667            }
668        }
669        pub fn install_version(
670            &mut self,
671            plugin_name: &str,
672            version: SemanticVersion,
673        ) -> SklResult<()> {
674            self.installed_versions
675                .entry(plugin_name.to_string())
676                .or_default()
677                .push(version.clone());
678            self.active_versions
679                .insert(plugin_name.to_string(), version);
680            Ok(())
681        }
682        pub fn check_upgrade_compatibility(
683            &self,
684            plugin_name: &str,
685            target_version: &SemanticVersion,
686        ) -> SklResult<()> {
687            if let Some(constraints) = self.compatibility_matrix.get(plugin_name) {
688                for constraint in constraints {
689                    if !self.version_satisfies_constraint(target_version, constraint) {
690                        return Err(SklearsError::InvalidInput(format!(
691                            "Version {} does not satisfy constraint {:?}",
692                            self.version_to_string(target_version),
693                            constraint
694                        )));
695                    }
696                }
697            }
698            Ok(())
699        }
700        fn version_satisfies_constraint(
701            &self,
702            version: &SemanticVersion,
703            constraint: &VersionConstraint,
704        ) -> bool {
705            match constraint.constraint_type {
706                ConstraintType::Exact => version == &constraint.version,
707                ConstraintType::GreaterThan => version > &constraint.version,
708                ConstraintType::GreaterOrEqual => version >= &constraint.version,
709                ConstraintType::LessThan => version < &constraint.version,
710                ConstraintType::LessOrEqual => version <= &constraint.version,
711                ConstraintType::Compatible => {
712                    version.major == constraint.version.major && version >= &constraint.version
713                }
714                ConstraintType::Tilde => {
715                    version.major == constraint.version.major
716                        && version.minor == constraint.version.minor
717                        && version >= &constraint.version
718                }
719            }
720        }
721        fn version_to_string(&self, version: &SemanticVersion) -> String {
722            format!("{}.{}.{}", version.major, version.minor, version.patch)
723        }
724    }
725    impl SecurityManager {
726        #[must_use]
727        pub fn new(sandbox_enabled: bool) -> Self {
728            Self {
729                sandbox_enabled,
730                allowed_capabilities: HashSet::new(),
731                security_policies: HashMap::new(),
732                threat_detection: ThreatDetector::new(),
733            }
734        }
735        pub fn validate_plugin_security(&self, plugin_name: &str) -> SklResult<()> {
736            if let Some(policy) = self.security_policies.get(plugin_name) {
737                Ok(())
738            } else {
739                Ok(())
740            }
741        }
742        pub fn scan_plugin(&self, plugin_data: &[u8]) -> SklResult<()> {
743            self.threat_detection.scan_data(plugin_data)
744        }
745        #[must_use]
746        pub fn generate_report(&self, plugin_name: &str) -> SecurityReport {
747            /// SecurityReport
748            SecurityReport {
749                plugin_name: plugin_name.to_string(),
750                security_level: SecurityLevel::Safe,
751                violations: Vec::new(),
752                recommendations: Vec::new(),
753                last_scan: Some(SystemTime::now()),
754            }
755        }
756    }
757    impl Default for ThreatDetector {
758        fn default() -> Self {
759            Self::new()
760        }
761    }
762    impl ThreatDetector {
763        #[must_use]
764        pub fn new() -> Self {
765            Self {
766                suspicious_patterns: Vec::new(),
767                monitoring_enabled: true,
768                alert_callback: None,
769            }
770        }
771        pub fn scan_data(&self, data: &[u8]) -> SklResult<()> {
772            let data_str = String::from_utf8_lossy(data);
773            for pattern in &self.suspicious_patterns {
774                if data_str.contains(&pattern.pattern) {
775                    let alert = ThreatAlert {
776                        plugin_name: "unknown".to_string(),
777                        threat_type: pattern.pattern_type.clone(),
778                        severity: pattern.severity.clone(),
779                        description: pattern.description.clone(),
780                        timestamp: SystemTime::now(),
781                        details: HashMap::new(),
782                    };
783                    if let Some(callback) = self.alert_callback {
784                        callback(&alert);
785                    }
786                    if pattern.severity >= ThreatSeverity::High {
787                        return Err(SklearsError::InvalidInput(format!(
788                            "Security threat detected: {}",
789                            pattern.description
790                        )));
791                    }
792                }
793            }
794            Ok(())
795        }
796    }
797    impl Default for PerformanceMonitor {
798        fn default() -> Self {
799            Self::new()
800        }
801    }
802    impl PerformanceMonitor {
803        #[must_use]
804        pub fn new() -> Self {
805            Self {
806                metrics: Arc::new(RwLock::new(HashMap::new())),
807                monitoring_enabled: false,
808                collection_interval: Duration::from_secs(60),
809            }
810        }
811        pub fn start_monitoring(&mut self) -> SklResult<()> {
812            self.monitoring_enabled = true;
813            Ok(())
814        }
815        pub fn stop_monitoring(&mut self) -> SklResult<()> {
816            self.monitoring_enabled = false;
817            Ok(())
818        }
819        #[must_use]
820        pub fn get_metrics(&self, plugin_name: &str) -> Option<PluginMetrics> {
821            self.metrics.read().ok()?.get(plugin_name).cloned()
822        }
823        pub fn record_execution(&self, plugin_name: &str, execution_time: Duration) {
824            if let Ok(mut metrics) = self.metrics.write() {
825                let plugin_metrics =
826                    metrics
827                        .entry(plugin_name.to_string())
828                        .or_insert_with(|| PluginMetrics {
829                            plugin_name: plugin_name.to_string(),
830                            execution_count: 0,
831                            total_execution_time: Duration::from_secs(0),
832                            average_execution_time: Duration::from_secs(0),
833                            memory_usage: MemoryUsageStats {
834                                current_usage: 0,
835                                peak_usage: 0,
836                                average_usage: 0,
837                                allocation_count: 0,
838                            },
839                            error_rate: 0.0,
840                            last_execution: None,
841                        });
842                plugin_metrics.execution_count += 1;
843                plugin_metrics.total_execution_time += execution_time;
844                plugin_metrics.average_execution_time =
845                    plugin_metrics.total_execution_time / plugin_metrics.execution_count as u32;
846                plugin_metrics.last_execution = Some(SystemTime::now());
847            }
848        }
849    }
850    impl Default for PluginMarketplace {
851        fn default() -> Self {
852            Self::new()
853        }
854    }
855    impl PluginMarketplace {
856        #[must_use]
857        pub fn new() -> Self {
858            Self {
859                repositories: Vec::new(),
860                cache: Arc::new(RwLock::new(HashMap::new())),
861                update_interval: Duration::from_secs(3600),
862                last_update: None,
863            }
864        }
865        pub fn add_repository(&mut self, repository: PluginRepository) {
866            self.repositories.push(repository);
867        }
868        pub fn update_cache(&mut self) -> SklResult<()> {
869            self.last_update = Some(SystemTime::now());
870            Ok(())
871        }
872        pub fn find_plugin(&self, plugin_name: &str) -> SklResult<MarketplaceEntry> {
873            if let Ok(cache) = self.cache.read() {
874                cache.get(plugin_name).cloned().ok_or_else(|| {
875                    SklearsError::InvalidInput(format!(
876                        "Plugin {plugin_name} not found in marketplace"
877                    ))
878                })
879            } else {
880                Err(SklearsError::InvalidOperation(
881                    "Failed to read marketplace cache".to_string(),
882                ))
883            }
884        }
885        pub fn download_plugin(
886            &self,
887            _plugin_name: &str,
888            _version: &SemanticVersion,
889        ) -> SklResult<Vec<u8>> {
890            Ok(vec![])
891        }
892        #[must_use]
893        pub fn search(&self, query: &str, tags: &[String]) -> Vec<MarketplaceEntry> {
894            if let Ok(cache) = self.cache.read() {
895                cache
896                    .values()
897                    .filter(|entry| {
898                        entry.plugin_name.contains(query)
899                            || entry.description.contains(query)
900                            || tags.iter().any(|tag| entry.tags.contains(tag))
901                    })
902                    .cloned()
903                    .collect()
904            } else {
905                Vec::new()
906            }
907        }
908    }
909    impl SemanticVersion {
910        #[must_use]
911        pub fn new(major: u32, minor: u32, patch: u32) -> Self {
912            Self {
913                major,
914                minor,
915                patch,
916                pre_release: None,
917                build_metadata: None,
918            }
919        }
920        pub fn parse(version_str: &str) -> SklResult<Self> {
921            let parts: Vec<&str> = version_str.split('.').collect();
922            if parts.len() < 3 {
923                return Err(SklearsError::InvalidInput(
924                    "Invalid version format".to_string(),
925                ));
926            }
927            let major = parts[0]
928                .parse()
929                .map_err(|_| SklearsError::InvalidInput("Invalid major version".to_string()))?;
930            let minor = parts[1]
931                .parse()
932                .map_err(|_| SklearsError::InvalidInput("Invalid minor version".to_string()))?;
933            let patch = parts[2]
934                .parse()
935                .map_err(|_| SklearsError::InvalidInput("Invalid patch version".to_string()))?;
936            Ok(Self::new(major, minor, patch))
937        }
938    }
939}