quantrs2_device/algorithm_marketplace/
versioning.rs

1//! Algorithm Versioning System
2//!
3//! This module provides comprehensive version control and lifecycle management
4//! for quantum algorithms in the marketplace.
5
6use super::*;
7
8/// Algorithm versioning system
9pub struct AlgorithmVersioningSystem {
10    config: VersioningConfig,
11    version_repository: VersionRepository,
12    version_analyzer: VersionAnalyzer,
13    migration_manager: MigrationManager,
14    compatibility_checker: CompatibilityChecker,
15}
16
17/// Versioning configuration
18#[derive(Debug, Clone, Serialize, Deserialize)]
19pub struct VersioningConfig {
20    pub versioning_scheme: VersioningScheme,
21    pub auto_versioning: bool,
22    pub version_retention_policy: RetentionPolicy,
23    pub compatibility_checking: bool,
24    pub migration_support: bool,
25    pub changelog_generation: bool,
26}
27
28/// Versioning schemes
29#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
30pub enum VersioningScheme {
31    Semantic,
32    Sequential,
33    Date,
34    GitHash,
35    Custom(String),
36}
37
38/// Retention policy
39#[derive(Debug, Clone, Serialize, Deserialize)]
40pub struct RetentionPolicy {
41    pub max_versions: Option<usize>,
42    pub retention_period: Option<Duration>,
43    pub keep_major_versions: bool,
44    pub keep_production_versions: bool,
45}
46
47/// Version repository
48pub struct VersionRepository {
49    versions: HashMap<String, Vec<AlgorithmVersion>>,
50    version_index: HashMap<String, VersionMetadata>,
51    branch_management: BranchManager,
52    tag_system: TagSystem,
53}
54
55/// Algorithm version
56#[derive(Debug, Clone)]
57pub struct AlgorithmVersion {
58    pub version_id: String,
59    pub algorithm_id: String,
60    pub version_number: String,
61    pub version_type: VersionType,
62    pub algorithm_content: AlgorithmRegistration,
63    pub version_metadata: VersionMetadata,
64    pub changes: Vec<VersionChange>,
65    pub dependencies: Vec<VersionDependency>,
66    pub compatibility_info: CompatibilityInfo,
67    pub lifecycle_status: LifecycleStatus,
68}
69
70/// Version types
71#[derive(Debug, Clone, PartialEq)]
72pub enum VersionType {
73    Major,
74    Minor,
75    Patch,
76    Prerelease,
77    Build,
78    Experimental,
79}
80
81/// Version metadata
82#[derive(Debug, Clone)]
83pub struct VersionMetadata {
84    pub created_at: SystemTime,
85    pub created_by: String,
86    pub commit_hash: Option<String>,
87    pub build_info: BuildInfo,
88    pub release_notes: String,
89    pub tags: Vec<String>,
90    pub download_count: u64,
91    pub rating: Option<f64>,
92}
93
94/// Build information
95#[derive(Debug, Clone)]
96pub struct BuildInfo {
97    pub build_number: u64,
98    pub build_timestamp: SystemTime,
99    pub build_environment: HashMap<String, String>,
100    pub compiler_version: String,
101    pub dependencies_snapshot: Vec<DependencySnapshot>,
102}
103
104/// Dependency snapshot
105#[derive(Debug, Clone)]
106pub struct DependencySnapshot {
107    pub name: String,
108    pub version: String,
109    pub source: String,
110    pub checksum: String,
111}
112
113/// Version change
114#[derive(Debug, Clone)]
115pub struct VersionChange {
116    pub change_type: ChangeType,
117    pub description: String,
118    pub affected_components: Vec<String>,
119    pub impact_level: ImpactLevel,
120    pub backward_compatible: bool,
121}
122
123/// Change types
124#[derive(Debug, Clone, PartialEq)]
125pub enum ChangeType {
126    Feature,
127    Bugfix,
128    Performance,
129    Security,
130    Documentation,
131    Refactoring,
132    Breaking,
133    Deprecation,
134}
135
136/// Impact levels
137#[derive(Debug, Clone, PartialEq)]
138pub enum ImpactLevel {
139    Low,
140    Medium,
141    High,
142    Critical,
143}
144
145/// Version dependency
146#[derive(Debug, Clone)]
147pub struct VersionDependency {
148    pub dependency_id: String,
149    pub dependency_type: DependencyType,
150    pub version_constraint: VersionConstraint,
151    pub optional: bool,
152    pub conflict_resolution: ConflictResolution,
153}
154
155/// Version constraint
156#[derive(Debug, Clone)]
157pub enum VersionConstraint {
158    Exact(String),
159    Range(String, String),
160    Minimum(String),
161    Maximum(String),
162    Compatible(String),
163    Custom(String),
164}
165
166/// Conflict resolution strategies
167#[derive(Debug, Clone, PartialEq)]
168pub enum ConflictResolution {
169    UseLatest,
170    UseEarliest,
171    Manual,
172    Fail,
173}
174
175/// Compatibility information
176#[derive(Debug, Clone)]
177pub struct CompatibilityInfo {
178    pub backward_compatible: bool,
179    pub forward_compatible: bool,
180    pub api_compatibility: APICompatibility,
181    pub data_compatibility: DataCompatibility,
182    pub platform_compatibility: PlatformCompatibility,
183    pub migration_path: Option<MigrationPath>,
184}
185
186/// API compatibility
187#[derive(Debug, Clone)]
188pub struct APICompatibility {
189    pub compatible: bool,
190    pub breaking_changes: Vec<BreakingChange>,
191    pub deprecated_features: Vec<DeprecatedFeature>,
192    pub new_features: Vec<NewFeature>,
193}
194
195/// Breaking change
196#[derive(Debug, Clone)]
197pub struct BreakingChange {
198    pub change_type: BreakingChangeType,
199    pub description: String,
200    pub affected_apis: Vec<String>,
201    pub migration_guide: String,
202}
203
204/// Breaking change types
205#[derive(Debug, Clone, PartialEq)]
206pub enum BreakingChangeType {
207    RemovedAPI,
208    ModifiedSignature,
209    ChangedBehavior,
210    MovedComponent,
211    RenamedComponent,
212}
213
214/// Deprecated feature
215#[derive(Debug, Clone)]
216pub struct DeprecatedFeature {
217    pub feature_name: String,
218    pub deprecation_reason: String,
219    pub removal_timeline: Option<String>,
220    pub replacement: Option<String>,
221}
222
223/// New feature
224#[derive(Debug, Clone)]
225pub struct NewFeature {
226    pub feature_name: String,
227    pub description: String,
228    pub stability_level: StabilityLevel,
229    pub documentation_link: Option<String>,
230}
231
232/// Stability levels
233#[derive(Debug, Clone, PartialEq)]
234pub enum StabilityLevel {
235    Experimental,
236    Beta,
237    Stable,
238    Deprecated,
239}
240
241/// Data compatibility
242#[derive(Debug, Clone)]
243pub struct DataCompatibility {
244    pub input_format_compatible: bool,
245    pub output_format_compatible: bool,
246    pub schema_changes: Vec<SchemaChange>,
247    pub data_migration_required: bool,
248}
249
250/// Schema change
251#[derive(Debug, Clone)]
252pub struct SchemaChange {
253    pub change_type: SchemaChangeType,
254    pub field_name: String,
255    pub old_type: Option<String>,
256    pub new_type: Option<String>,
257    pub required: bool,
258}
259
260/// Schema change types
261#[derive(Debug, Clone, PartialEq)]
262pub enum SchemaChangeType {
263    Added,
264    Removed,
265    Modified,
266    Renamed,
267}
268
269/// Platform compatibility
270#[derive(Debug, Clone)]
271pub struct PlatformCompatibility {
272    pub supported_platforms: Vec<String>,
273    pub removed_platforms: Vec<String>,
274    pub added_platforms: Vec<String>,
275    pub platform_specific_changes: HashMap<String, Vec<String>>,
276}
277
278/// Migration path
279#[derive(Debug, Clone)]
280pub struct MigrationPath {
281    pub from_version: String,
282    pub to_version: String,
283    pub migration_steps: Vec<MigrationStep>,
284    pub estimated_time: Duration,
285    pub automation_level: AutomationLevel,
286}
287
288/// Migration step
289#[derive(Debug, Clone)]
290pub struct MigrationStep {
291    pub step_id: String,
292    pub description: String,
293    pub step_type: MigrationStepType,
294    pub automated: bool,
295    pub rollback_supported: bool,
296    pub validation_criteria: Vec<String>,
297}
298
299/// Migration step types
300#[derive(Debug, Clone, PartialEq)]
301pub enum MigrationStepType {
302    CodeUpdate,
303    DataMigration,
304    ConfigurationChange,
305    DependencyUpdate,
306    Manual,
307}
308
309/// Automation levels
310#[derive(Debug, Clone, PartialEq)]
311pub enum AutomationLevel {
312    FullyAutomated,
313    SemiAutomated,
314    Manual,
315}
316
317/// Lifecycle status
318#[derive(Debug, Clone, PartialEq)]
319pub enum LifecycleStatus {
320    Development,
321    Alpha,
322    Beta,
323    ReleaseCandidate,
324    Released,
325    Deprecated,
326    EndOfLife,
327    Archived,
328}
329
330/// Branch manager
331pub struct BranchManager {
332    branches: HashMap<String, Branch>,
333    merge_policies: Vec<MergePolicy>,
334    branching_strategy: BranchingStrategy,
335}
336
337/// Branch
338#[derive(Debug, Clone)]
339pub struct Branch {
340    pub branch_name: String,
341    pub branch_type: BranchType,
342    pub parent_branch: Option<String>,
343    pub versions: Vec<String>,
344    pub created_at: SystemTime,
345    pub created_by: String,
346    pub protection_rules: Vec<ProtectionRule>,
347}
348
349/// Branch types
350#[derive(Debug, Clone, PartialEq)]
351pub enum BranchType {
352    Main,
353    Release,
354    Feature,
355    Hotfix,
356    Experimental,
357}
358
359/// Protection rule
360#[derive(Debug, Clone)]
361pub struct ProtectionRule {
362    pub rule_type: ProtectionRuleType,
363    pub required_reviewers: usize,
364    pub status_checks: Vec<String>,
365    pub dismiss_stale_reviews: bool,
366}
367
368/// Protection rule types
369#[derive(Debug, Clone, PartialEq)]
370pub enum ProtectionRuleType {
371    RequireReviews,
372    RequireStatusChecks,
373    RequireUpToDate,
374    RestrictPushes,
375}
376
377/// Merge policy
378#[derive(Debug, Clone)]
379pub struct MergePolicy {
380    pub policy_name: String,
381    pub source_branch_pattern: String,
382    pub target_branch_pattern: String,
383    pub merge_strategy: MergeStrategy,
384    pub required_checks: Vec<String>,
385}
386
387/// Merge strategies
388#[derive(Debug, Clone, PartialEq)]
389pub enum MergeStrategy {
390    Merge,
391    Squash,
392    Rebase,
393    FastForward,
394}
395
396/// Branching strategy
397#[derive(Debug, Clone, PartialEq)]
398pub enum BranchingStrategy {
399    GitFlow,
400    GitHubFlow,
401    GitLab,
402    Custom(String),
403}
404
405/// Tag system
406pub struct TagSystem {
407    tags: HashMap<String, Tag>,
408    tag_policies: Vec<TagPolicy>,
409    semantic_tags: bool,
410}
411
412/// Tag
413#[derive(Debug, Clone)]
414pub struct Tag {
415    pub tag_name: String,
416    pub tag_type: TagType,
417    pub version_id: String,
418    pub message: String,
419    pub created_at: SystemTime,
420    pub created_by: String,
421    pub signed: bool,
422}
423
424/// Tag types
425#[derive(Debug, Clone, PartialEq)]
426pub enum TagType {
427    Release,
428    Milestone,
429    Experimental,
430    Custom(String),
431}
432
433/// Tag policy
434#[derive(Debug, Clone)]
435pub struct TagPolicy {
436    pub policy_name: String,
437    pub tag_pattern: String,
438    pub protection_level: TagProtectionLevel,
439    pub allowed_users: Vec<String>,
440}
441
442/// Tag protection levels
443#[derive(Debug, Clone, PartialEq)]
444pub enum TagProtectionLevel {
445    None,
446    Protected,
447    Immutable,
448}
449
450/// Version analyzer
451pub struct VersionAnalyzer {
452    analysis_rules: Vec<VersionAnalysisRule>,
453    comparison_engine: VersionComparisonEngine,
454    impact_analyzer: ImpactAnalyzer,
455}
456
457/// Version analysis rule
458#[derive(Debug, Clone)]
459pub struct VersionAnalysisRule {
460    pub rule_name: String,
461    pub rule_type: AnalysisRuleType,
462    pub condition: String,
463    pub action: AnalysisAction,
464}
465
466/// Analysis rule types
467#[derive(Debug, Clone, PartialEq)]
468pub enum AnalysisRuleType {
469    CompatibilityCheck,
470    PerformanceRegression,
471    SecurityVulnerability,
472    QualityRegression,
473}
474
475/// Analysis actions
476#[derive(Debug, Clone, PartialEq)]
477pub enum AnalysisAction {
478    Flag,
479    Block,
480    Warn,
481    AutoFix,
482}
483
484/// Version comparison engine
485pub struct VersionComparisonEngine {
486    comparators: Vec<Box<dyn VersionComparator + Send + Sync>>,
487    diff_algorithms: Vec<DiffAlgorithm>,
488}
489
490/// Version comparator trait
491pub trait VersionComparator {
492    fn compare(
493        &self,
494        version1: &AlgorithmVersion,
495        version2: &AlgorithmVersion,
496    ) -> DeviceResult<VersionComparison>;
497    fn get_comparator_name(&self) -> String;
498}
499
500/// Version comparison
501#[derive(Debug, Clone)]
502pub struct VersionComparison {
503    pub comparison_type: ComparisonType,
504    pub differences: Vec<VersionDifference>,
505    pub similarity_score: f64,
506    pub migration_complexity: MigrationComplexity,
507}
508
509/// Comparison types
510#[derive(Debug, Clone, PartialEq)]
511pub enum ComparisonType {
512    Identical,
513    Compatible,
514    Incompatible,
515    Unknown,
516}
517
518/// Version difference
519#[derive(Debug, Clone)]
520pub struct VersionDifference {
521    pub difference_type: DifferenceType,
522    pub component: String,
523    pub old_value: Option<String>,
524    pub new_value: Option<String>,
525    pub impact: DifferenceImpact,
526}
527
528/// Difference types
529#[derive(Debug, Clone, PartialEq)]
530pub enum DifferenceType {
531    Added,
532    Removed,
533    Modified,
534    Moved,
535    Renamed,
536}
537
538/// Difference impact
539#[derive(Debug, Clone, PartialEq)]
540pub enum DifferenceImpact {
541    None,
542    Low,
543    Medium,
544    High,
545    Breaking,
546}
547
548/// Migration complexity
549#[derive(Debug, Clone, PartialEq)]
550pub enum MigrationComplexity {
551    Trivial,
552    Simple,
553    Moderate,
554    Complex,
555    Impossible,
556}
557
558/// Diff algorithm
559#[derive(Debug, Clone)]
560pub struct DiffAlgorithm {
561    pub algorithm_name: String,
562    pub algorithm_type: DiffAlgorithmType,
563    pub granularity: DiffGranularity,
564}
565
566/// Diff algorithm types
567#[derive(Debug, Clone, PartialEq)]
568pub enum DiffAlgorithmType {
569    Textual,
570    Syntactic,
571    Semantic,
572    Structural,
573}
574
575/// Diff granularity
576#[derive(Debug, Clone, PartialEq)]
577pub enum DiffGranularity {
578    Character,
579    Word,
580    Line,
581    Block,
582    Function,
583    File,
584}
585
586/// Impact analyzer
587pub struct ImpactAnalyzer {
588    impact_models: Vec<ImpactModel>,
589    dependency_graph: DependencyGraph,
590    change_propagation: ChangePropagation,
591}
592
593/// Impact model
594#[derive(Debug, Clone)]
595pub struct ImpactModel {
596    pub model_name: String,
597    pub impact_categories: Vec<ImpactCategory>,
598    pub assessment_criteria: Vec<AssessmentCriterion>,
599}
600
601/// Impact categories
602#[derive(Debug, Clone, PartialEq)]
603pub enum ImpactCategory {
604    Functional,
605    Performance,
606    Security,
607    Usability,
608    Maintainability,
609}
610
611/// Assessment criterion
612#[derive(Debug, Clone)]
613pub struct AssessmentCriterion {
614    pub criterion_name: String,
615    pub weight: f64,
616    pub evaluation_method: EvaluationMethod,
617}
618
619/// Evaluation methods
620#[derive(Debug, Clone, PartialEq)]
621pub enum EvaluationMethod {
622    Static,
623    Dynamic,
624    Hybrid,
625    Manual,
626}
627
628/// Dependency graph
629#[derive(Debug)]
630pub struct DependencyGraph {
631    nodes: HashMap<String, DependencyNode>,
632    edges: Vec<DependencyEdge>,
633    transitive_closure: HashMap<String, HashSet<String>>,
634}
635
636/// Dependency node
637#[derive(Debug, Clone)]
638pub struct DependencyNode {
639    pub node_id: String,
640    pub node_type: DependencyNodeType,
641    pub version: String,
642    pub metadata: HashMap<String, String>,
643}
644
645/// Dependency node types
646#[derive(Debug, Clone, PartialEq)]
647pub enum DependencyNodeType {
648    Algorithm,
649    Library,
650    Service,
651    Data,
652}
653
654/// Dependency edge
655#[derive(Debug, Clone)]
656pub struct DependencyEdge {
657    pub from_node: String,
658    pub to_node: String,
659    pub dependency_type: DependencyType,
660    pub strength: f64,
661}
662
663/// Change propagation
664pub struct ChangePropagation {
665    propagation_rules: Vec<PropagationRule>,
666    impact_chains: Vec<ImpactChain>,
667}
668
669/// Propagation rule
670#[derive(Debug, Clone)]
671pub struct PropagationRule {
672    pub rule_name: String,
673    pub trigger_condition: String,
674    pub propagation_pattern: PropagationPattern,
675    pub dampening_factor: f64,
676}
677
678/// Propagation patterns
679#[derive(Debug, Clone, PartialEq)]
680pub enum PropagationPattern {
681    Direct,
682    Transitive,
683    Cascading,
684    Viral,
685}
686
687/// Impact chain
688#[derive(Debug, Clone)]
689pub struct ImpactChain {
690    pub chain_id: String,
691    pub source_change: String,
692    pub affected_components: Vec<String>,
693    pub propagation_path: Vec<String>,
694    pub total_impact: f64,
695}
696
697/// Migration manager
698pub struct MigrationManager {
699    migration_strategies: Vec<Box<dyn MigrationStrategy + Send + Sync>>,
700    migration_tools: Vec<Box<dyn MigrationTool + Send + Sync>>,
701    migration_history: Vec<MigrationRecord>,
702}
703
704/// Migration strategy trait
705pub trait MigrationStrategy {
706    fn plan_migration(
707        &self,
708        from_version: &AlgorithmVersion,
709        to_version: &AlgorithmVersion,
710    ) -> DeviceResult<MigrationPlan>;
711    fn get_strategy_name(&self) -> String;
712}
713
714/// Migration tool trait
715pub trait MigrationTool {
716    fn execute_migration(&self, migration_plan: &MigrationPlan) -> DeviceResult<MigrationResult>;
717    fn get_tool_name(&self) -> String;
718}
719
720/// Migration plan
721#[derive(Debug, Clone)]
722pub struct MigrationPlan {
723    pub plan_id: String,
724    pub from_version: String,
725    pub to_version: String,
726    pub migration_steps: Vec<MigrationStep>,
727    pub estimated_duration: Duration,
728    pub risk_assessment: RiskAssessment,
729    pub rollback_plan: Option<RollbackPlan>,
730}
731
732/// Risk assessment
733#[derive(Debug, Clone)]
734pub struct RiskAssessment {
735    pub overall_risk: RiskLevel,
736    pub risk_factors: Vec<RiskFactor>,
737    pub mitigation_strategies: Vec<String>,
738}
739
740/// Risk levels
741#[derive(Debug, Clone, PartialEq)]
742pub enum RiskLevel {
743    Low,
744    Medium,
745    High,
746    Critical,
747}
748
749/// Risk factor
750#[derive(Debug, Clone)]
751pub struct RiskFactor {
752    pub factor_name: String,
753    pub risk_level: RiskLevel,
754    pub probability: f64,
755    pub impact: f64,
756    pub mitigation: String,
757}
758
759/// Rollback plan
760#[derive(Debug, Clone)]
761pub struct RollbackPlan {
762    pub rollback_steps: Vec<RollbackStep>,
763    pub rollback_triggers: Vec<RollbackTrigger>,
764    pub data_backup_requirements: Vec<String>,
765}
766
767/// Rollback step
768#[derive(Debug, Clone)]
769pub struct RollbackStep {
770    pub step_description: String,
771    pub automated: bool,
772    pub validation: String,
773}
774
775/// Rollback trigger
776#[derive(Debug, Clone)]
777pub struct RollbackTrigger {
778    pub trigger_condition: String,
779    pub automatic: bool,
780    pub approval_required: bool,
781}
782
783/// Migration result
784#[derive(Debug, Clone)]
785pub struct MigrationResult {
786    pub success: bool,
787    pub completed_steps: Vec<String>,
788    pub failed_steps: Vec<String>,
789    pub warnings: Vec<String>,
790    pub execution_time: Duration,
791    pub rollback_required: bool,
792}
793
794/// Migration record
795#[derive(Debug, Clone)]
796pub struct MigrationRecord {
797    pub migration_id: String,
798    pub from_version: String,
799    pub to_version: String,
800    pub started_at: SystemTime,
801    pub completed_at: Option<SystemTime>,
802    pub success: bool,
803    pub migration_log: Vec<MigrationLogEntry>,
804}
805
806/// Migration log entry
807#[derive(Debug, Clone)]
808pub struct MigrationLogEntry {
809    pub timestamp: SystemTime,
810    pub level: LogLevel,
811    pub message: String,
812    pub step_id: Option<String>,
813}
814
815/// Compatibility checker
816pub struct CompatibilityChecker {
817    compatibility_rules: Vec<CompatibilityRule>,
818    compatibility_matrix: CompatibilityMatrix,
819    version_constraints: Vec<VersionConstraint>,
820}
821
822/// Compatibility rule
823#[derive(Debug, Clone)]
824pub struct CompatibilityRule {
825    pub rule_name: String,
826    pub rule_type: CompatibilityRuleType,
827    pub condition: String,
828    pub compatibility_level: CompatibilityLevel,
829}
830
831/// Compatibility rule types
832#[derive(Debug, Clone, PartialEq)]
833pub enum CompatibilityRuleType {
834    API,
835    Data,
836    Platform,
837    Performance,
838    Behavioral,
839}
840
841/// Compatibility levels
842#[derive(Debug, Clone, PartialEq)]
843pub enum CompatibilityLevel {
844    FullyCompatible,
845    MostlyCompatible,
846    PartiallyCompatible,
847    Incompatible,
848}
849
850/// Compatibility matrix
851#[derive(Debug)]
852pub struct CompatibilityMatrix {
853    compatibility_map: HashMap<(String, String), CompatibilityLevel>,
854    last_updated: SystemTime,
855}
856
857impl AlgorithmVersioningSystem {
858    /// Create a new versioning system
859    pub fn new(config: &VersioningConfig) -> DeviceResult<Self> {
860        Ok(Self {
861            config: config.clone(),
862            version_repository: VersionRepository::new(),
863            version_analyzer: VersionAnalyzer::new()?,
864            migration_manager: MigrationManager::new()?,
865            compatibility_checker: CompatibilityChecker::new()?,
866        })
867    }
868
869    /// Initialize the versioning system
870    pub async fn initialize(&self) -> DeviceResult<()> {
871        // Initialize versioning components
872        Ok(())
873    }
874}
875
876impl VersionRepository {
877    fn new() -> Self {
878        Self {
879            versions: HashMap::new(),
880            version_index: HashMap::new(),
881            branch_management: BranchManager::new(),
882            tag_system: TagSystem::new(),
883        }
884    }
885}
886
887impl BranchManager {
888    fn new() -> Self {
889        Self {
890            branches: HashMap::new(),
891            merge_policies: vec![],
892            branching_strategy: BranchingStrategy::GitFlow,
893        }
894    }
895}
896
897impl TagSystem {
898    fn new() -> Self {
899        Self {
900            tags: HashMap::new(),
901            tag_policies: vec![],
902            semantic_tags: true,
903        }
904    }
905}
906
907impl VersionAnalyzer {
908    fn new() -> DeviceResult<Self> {
909        Ok(Self {
910            analysis_rules: vec![],
911            comparison_engine: VersionComparisonEngine::new(),
912            impact_analyzer: ImpactAnalyzer::new(),
913        })
914    }
915}
916
917impl VersionComparisonEngine {
918    fn new() -> Self {
919        Self {
920            comparators: vec![],
921            diff_algorithms: vec![],
922        }
923    }
924}
925
926impl ImpactAnalyzer {
927    fn new() -> Self {
928        Self {
929            impact_models: vec![],
930            dependency_graph: DependencyGraph::new(),
931            change_propagation: ChangePropagation::new(),
932        }
933    }
934}
935
936impl DependencyGraph {
937    fn new() -> Self {
938        Self {
939            nodes: HashMap::new(),
940            edges: vec![],
941            transitive_closure: HashMap::new(),
942        }
943    }
944}
945
946impl ChangePropagation {
947    fn new() -> Self {
948        Self {
949            propagation_rules: vec![],
950            impact_chains: vec![],
951        }
952    }
953}
954
955impl MigrationManager {
956    fn new() -> DeviceResult<Self> {
957        Ok(Self {
958            migration_strategies: vec![],
959            migration_tools: vec![],
960            migration_history: vec![],
961        })
962    }
963}
964
965impl CompatibilityChecker {
966    fn new() -> DeviceResult<Self> {
967        Ok(Self {
968            compatibility_rules: vec![],
969            compatibility_matrix: CompatibilityMatrix::new(),
970            version_constraints: vec![],
971        })
972    }
973}
974
975impl CompatibilityMatrix {
976    fn new() -> Self {
977        Self {
978            compatibility_map: HashMap::new(),
979            last_updated: SystemTime::now(),
980        }
981    }
982}
983
984impl Default for VersioningConfig {
985    fn default() -> Self {
986        Self {
987            versioning_scheme: VersioningScheme::Semantic,
988            auto_versioning: false,
989            version_retention_policy: RetentionPolicy {
990                max_versions: Some(100),
991                retention_period: Some(Duration::from_secs(365 * 24 * 3600)),
992                keep_major_versions: true,
993                keep_production_versions: true,
994            },
995            compatibility_checking: true,
996            migration_support: true,
997            changelog_generation: true,
998        }
999    }
1000}