/**
 * Brainy 8.0 - Your AI-Powered Second Brain
 * 🧠⚛️ A multi-dimensional database with vector, graph, and relational storage
 *
 * Core Components:
 * - Brainy: The unified database with Triple Intelligence
 * - Triple Intelligence: Seamless fusion of vector + graph + field search
 * - Db: Immutable, generation-pinned database values (now/transact/asOf/with)
 * - Plugins: Extensible plugin system (cor, storage adapters)
 * - Neural Import: AI-powered entity extraction & smart data import
 */

// Export main Brainy class
import { Brainy } from './brainy.js'

export { Brainy }

// The in-process change feed (brain.onChange) — event + listener types.
export type {
  BrainyChangeEvent,
  ChangeEventEntity,
  ChangeEventRelation,
  ChangeListener
} from './events/changeFeed.js'

// Temporal VFS — a file version entry (vfs.history / readFile({ asOf })).
export type { FileVersion } from './vfs/types.js'

// Export diagnostics result type
export type { DiagnosticsResult } from './brainy.js'
export type {
  GraphAuditReport,
  GraphAuditDiscrepancy
} from './graph/graphAudit.js'
export {
  checkOsLimits,
  NOFILE_POOL_FLOOR,
  MAX_MAP_COUNT_POOL_FLOOR
} from './utils/osLimits.js'
export type { OsLimitsReport } from './utils/osLimits.js'

// Export Brainy configuration and types
export type {
  BrainyConfig,
  Entity,
  Relation,
  Result,
  AddParams,
  UpdateParams,
  RelateParams,
  UpdateRelationParams,
  FindParams,
  SimilarParams,
  GetOptions,
  RelatedParams,
  AddManyParams,
  UpdateManyParams,
  RemoveManyParams,
  RelateManyParams,
  BatchResult,
  SubtypeRegistry,
  FillSubtypeRule,
  FillSubtypeRules,
  FillSubtypesResult,
  AggregateDefinition,
  AggregateMetricDef,
  AggregateSource,
  AggregateQueryParams,
  AggregateResult,
  AggregateGroupState,
  MetricState,
  AggregationOp,
  TimeWindowGranularity,
  GroupByDimension,
  AggregationProvider
} from './types/brainy.types.js'

// Reserved-field contract — the canonical list of Brainy-owned field names
// that may never appear inside a `metadata` bag (see docs/concepts/consistency-model.md)
export {
  RESERVED_ENTITY_FIELDS,
  RESERVED_RELATION_FIELDS,
  splitNounMetadataRecord,
  splitVerbMetadataRecord
} from './types/reservedFields.js'
export type {
  ReservedEntityField,
  ReservedRelationField,
  EntityMetadataInput,
  EntityMetadataPatch,
  RelationMetadataInput,
  RelationMetadataPatch,
  NoReservedEntityKeys,
  NoReservedRelationKeys,
  SplitMetadataRecord
} from './types/reservedFields.js'

// Export Aggregation Engine
export { AggregationIndex, AggregateMaterializer, bucketTimestamp, parseBucketRange } from './aggregation/index.js'

// Export Neural Import (AI data understanding)
export { NeuralImport } from './neural/neuralImport.js'
export type {
  NeuralAnalysisResult,
  DetectedEntity,
  DetectedRelationship,
  NeuralInsight,
  NeuralImportOptions
} from './neural/neuralImport.js'

// Export Neural Entity Extraction
export { NeuralEntityExtractor } from './neural/entityExtractor.js'
export { SmartExtractor } from './neural/SmartExtractor.js'
export { SmartRelationshipExtractor } from './neural/SmartRelationshipExtractor.js'
export type {
  ExtractedEntity
} from './neural/entityExtractor.js'
export type {
  ExtractionResult,
  SmartExtractorOptions,
  FormatContext
} from './neural/SmartExtractor.js'
export type {
  RelationshipExtractionResult,
  SmartRelationshipExtractorOptions
} from './neural/SmartRelationshipExtractor.js'

// Export distance functions for convenience
import {
  euclideanDistance,
  cosineDistance,
  manhattanDistance,
  dotProductDistance
} from './utils/index.js'

export {
  euclideanDistance,
  cosineDistance,
  manhattanDistance,
  dotProductDistance
}

// Export version utilities
export { getBrainyVersion } from './utils/version.js'

// Export plugin system
export type { BrainyPlugin, BrainyPluginContext, StorageAdapterFactory } from './plugin.js'
export { PluginRegistry } from './plugin.js'

// Export migration system
export { MigrationRunner, MIGRATIONS } from './migration/index.js'
export type { Migration, MigrationState, MigrationPreview, MigrationResult, MigrateOptions, MigrationError } from './migration/index.js'

// Export optimistic-concurrency types (7.31.0)
export { RevisionConflictError } from './transaction/RevisionConflictError.js'

// Named not-found errors — thrown by update/relate/updateRelation/similar/
// transact/with() when a referenced entity or relation does not exist.
export { EntityNotFoundError, RelationNotFoundError } from './errors/notFound.js'

// Base error + typed migration-lock error — thrown by any data-plane call while a
// brain runs its one-time 7.x→8.0 upgrade; catch to answer HTTP 503 + Retry-After.
export { BrainyError, MigrationInProgressError, GraphIndexNotReadyError, MetadataIndexNotReadyError, VectorIndexNotReadyError, ProtectedArtifactError, DerivedArtifactMissingError } from './errors/brainyError.js'
export type { BrainyErrorType } from './errors/brainyError.js'

// ============= 8.0 Db API — generational MVCC =============
// Immutable database values: brain.now() / brain.transact() / brain.asOf() /
// db.with() / db.persist() / Brainy.load(). See src/db/ for the record layer.
export { Db } from './db/db.js'

// Portable graph export/import — db.export() / brain.export() / brain.import()
// (PortableGraph v1; identical wire format to the 7.x line).
export { isPortableGraph, validatePortableGraph } from './db/portableGraph.js'
export type {
  PortableGraph,
  PortableGraphEntity,
  PortableGraphRelation,
  ExportSelector,
  ExportOptions,
  ImportOptions,
  ImportResult,
  PortableGraphValidation
} from './db/portableGraph.js'
export {
  GenerationConflictError,
  SpeculativeOverlayError,
  GenerationCompactedError,
  StoreInconsistentError,
  PendingFlushDurabilityError
} from './db/errors.js'
export type { UnreconciledRecord } from './db/errors.js'
export type {
  TxOperation,
  TxAddOperation,
  TxUpdateOperation,
  TxRemoveOperation,
  TxRelateOperation,
  TxUnrelateOperation,
  TransactOptions,
  TransactReceipt,
  TxLogEntry,
  CompactHistoryOptions,
  CompactHistoryResult,
  HistoryStats,
  ChangedIds,
  DiffResult,
  HistoryVersion,
  EntityHistory
} from './db/types.js'
// The generation fact log — sequential after-image scan surface
// (brain.scanFacts / brain.factSegmentPaths) for index heals and replays.
export type {
  CommitFact,
  FactOp,
  FactScanBatch,
  FactScanHandle
} from './db/factLog.js'
// The generalized family stamp — which source generation a projection
// reflects + the surface that verifies it whole; one verifier, both member
// modes (enumerated byte-exact / rollup invariants).
export { readFamilyStamp, verifyFamilyStamp, ENTITY_TREE_STAMP_PATH } from './db/familyStamp.js'
export type { FamilyStamp, StampMembers, StampVerdict } from './db/familyStamp.js'
// Optional provider capability for generation-aware native indexes
export { isVersionedIndexProvider } from './plugin.js'
export type { VersionedIndexProvider } from './plugin.js'
export type { ProviderInvariantReport, InvariantResult, InvariantHeal } from './plugin.js'
// Optional native graph-acceleration engine (cor 3.0) — the published provider
// contract + its columnar wire types. Brainy feature-detects an implementation
// and falls back to its pure-TS adjacency when absent.
export type {
  GraphAccelerationProvider,
  Subgraph,
  OpaqueIdSet,
  GraphTraversalDirection,
  TraverseOptions,
  EdgesForNodeOptions,
  GraphCursorHandle,
  GraphCursorOptions,
  GraphCursorChunk,
  GraphScores,
  GraphCommunities,
  GraphPath,
  RankOptions,
  CommunitiesOptions,
  PathOptions,
  SampleOptions,
  MostConnectedOptions
} from './plugin.js'

// Export embedding functionality
import {
  UniversalSentenceEncoder,
  TransformerEmbedding,
  createEmbeddingFunction,
  defaultEmbeddingFunction,
  batchEmbed,
  embeddingFunctions
} from './utils/embedding.js'

// Export logging utilities
import { 
  logger, 
  LogLevel, 
  configureLogger, 
  createModuleLogger 
} from './utils/logger.js'

// Chat system removed - was returning fake responses


// Export performance and optimization utilities
import {
  getGlobalBackpressure,
  AdaptiveBackpressure
} from './utils/adaptiveBackpressure.js'

import {
  getGlobalPerformanceMonitor,
  PerformanceMonitor
} from './utils/performanceMonitor.js'

// Export environment utilities
import { isNode } from './utils/environment.js'

export {
  UniversalSentenceEncoder,
  TransformerEmbedding,
  createEmbeddingFunction,
  defaultEmbeddingFunction,
  batchEmbed,
  embeddingFunctions,

  // Environment utilities
  isNode,
  
  // Logging utilities
  logger,
  LogLevel,
  configureLogger,
  createModuleLogger,
  
  // Performance and optimization utilities
  getGlobalBackpressure,
  AdaptiveBackpressure,
  getGlobalPerformanceMonitor,
  PerformanceMonitor
}

// Export storage adapters (Brainy 8.0 — filesystem + memory only).
import { MemoryStorage, createStorage } from './storage/storageFactory.js'

export { MemoryStorage, createStorage }

// FileSystemStorage is exported separately to avoid browser build issues.
export { FileSystemStorage } from './storage/adapters/fileSystemStorage.js'

// Export types
import type {
  Vector,
  VectorDocument,
  SearchResult,
  DistanceFunction,
  EmbeddingFunction,
  EmbeddingModel,
  HNSWNoun,
  HNSWVerb,
  HNSWConfig,
  StorageAdapter,
  DerivedFamilyDeclaration
} from './coreTypes.js'

// Export vector index implementation (the JS HNSW path)
import { JsHnswVectorIndex } from './hnsw/hnswIndex.js'

export { JsHnswVectorIndex }

export type {
  Vector,
  VectorDocument,
  SearchResult,
  DistanceFunction,
  EmbeddingFunction,
  EmbeddingModel,
  HNSWNoun,
  HNSWVerb,
  HNSWConfig,
  StorageAdapter,
  DerivedFamilyDeclaration
}

// Export graph types
import type {
  GraphNoun,
  GraphVerb,
  EmbeddedGraphVerb,
  Person,
  Organization,
  Location,
  Thing,
  Concept,
  Event,
  Agent,
  Organism,
  Substance,
  Quality,
  TimeInterval,
  Function,
  Proposition,
  Document,
  Media,
  File,
  Message,
  Collection,
  Dataset,
  Product,
  Service,
  Task,
  Project,
  Process,
  State,
  Role,
  Language,
  Currency,
  Measurement,
  Hypothesis,
  Experiment,
  Contract,
  Regulation,
  Interface,
  Resource,
  Custom,
  SocialGroup,
  Institution,
  Norm,
  InformationContent,
  InformationBearer,
  Relationship
} from './types/graphTypes.js'
import { NounType, VerbType } from './types/graphTypes.js'

export type {
  GraphNoun,
  GraphVerb,
  EmbeddedGraphVerb,
  Person,
  Organization,
  Location,
  Thing,
  Concept,
  Event,
  Agent,
  Organism,
  Substance,
  Quality,
  TimeInterval,
  Function,
  Proposition,
  Document,
  Media,
  File,
  Message,
  Collection,
  Dataset,
  Product,
  Service,
  Task,
  Project,
  Process,
  State,
  Role,
  Language,
  Currency,
  Measurement,
  Hypothesis,
  Experiment,
  Contract,
  Regulation,
  Interface,
  Resource,
  Custom,
  SocialGroup,
  Institution,
  Norm,
  InformationContent,
  InformationBearer,
  Relationship
}
// Export type utility functions
import { getNounTypes, getVerbTypes, getNounTypeMap, getVerbTypeMap } from './utils/typeUtils.js'

// Export BrainyTypes for type validation and lookup
import { BrainyTypes } from './utils/brainyTypes.js'

export {
  NounType,
  VerbType,
  getNounTypes,
  getVerbTypes,
  getNounTypeMap,
  getVerbTypeMap,
  // BrainyTypes - type validation and lookup
  BrainyTypes
}

// Export MCP (Model Control Protocol) components
import {
  BrainyMCPAdapter,
  BrainyMCPService
} from './mcp/index.js' // Import from mcp/index.js
import {
  MCPRequest,
  MCPResponse,
  MCPDataAccessRequest,
  MCPToolExecutionRequest,
  MCPSystemInfoRequest,
  MCPAuthenticationRequest,
  MCPRequestType,
  MCPServiceOptions,
  MCPTool,
  MCP_VERSION
} from './types/mcpTypes.js'

export {
  // MCP classes
  BrainyMCPAdapter,
  BrainyMCPService,

  // MCP types
  MCPRequestType,
  MCP_VERSION
}

export type {
  MCPRequest,
  MCPResponse,
  MCPDataAccessRequest,
  MCPToolExecutionRequest,
  MCPSystemInfoRequest,
  MCPAuthenticationRequest,
  MCPServiceOptions,
  MCPTool
}

// ============= Integration Hub =============
// Connect Brainy to Excel, Power BI, Google Sheets, and more
// Enable with: new Brainy({ integrations: true })

// Hub class (used internally by brain.hub, also available for advanced use)
export {
  IntegrationHub,
  createIntegrationHub
} from './integrations/index.js'

export type {
  IntegrationHubConfig,
  IntegrationRequest,
  IntegrationResponse
} from './integrations/index.js'

// Re-export IntegrationsConfig from types (for TypeScript users)
export type { IntegrationsConfig } from './types/brainy.types.js'

// Core infrastructure
export {
  EventBus,
  TabularExporter,
  IntegrationBase,
  IntegrationLoader,
  createIntegrationLoader,
  detectEnvironment,
  INTEGRATION_CATALOG
} from './integrations/index.js'

// Integration types
export type {
  BrainyEvent,
  EventFilter,
  EventHandler,
  EventSubscription,
  TabularRow,
  RelationTabularRow,
  TabularExporterConfig,
  IntegrationConfig,
  IntegrationHealthStatus,
  HTTPIntegration,
  StreamingIntegration,
  IntegrationType,
  RuntimeEnvironment,
  IntegrationInfo,
  IntegrationLoaderConfig,
  ODataQueryOptions,
  WebhookRegistration,
  WebhookDeliveryResult
} from './integrations/index.js'

// Concrete integrations
export {
  GoogleSheetsIntegration,
  ODataIntegration,
  SSEIntegration,
  WebhookIntegration
} from './integrations/index.js'

export type {
  GoogleSheetsConfig,
  ODataConfig,
  SSEConfig,
  WebhookConfig
} from './integrations/index.js'

// OData utilities (advanced)
export {
  parseODataQuery,
  parseFilter,
  parseOrderBy,
  parseSelect,
  odataToFindParams,
  applyFilter,
  applySelect,
  applyOrderBy,
  applyPagination,
  generateEdmx,
  generateMetadataJson,
  generateServiceDocument
} from './integrations/index.js'