# 配置系统类型定义 - 自然语言实现规范

## 1. 模块概述

### 1.1 功能定位
配置系统类型定义模块是Claude Code配置管理架构的核心类型规范，提供完整的TypeScript类型声明和接口标准，确保分层配置管理、热更新机制和配置验证的类型安全性。

### 1.2 核心职责
- 配置结构定义：定义完整的配置层次结构和类型约束
- 类型安全验证：确保配置项的类型一致性和值有效性
- 分层配置类型：支持系统级、用户级、会话级配置的类型定义
- 动态配置类型：支持运行时配置变更的类型安全机制
- 配置监听类型：定义配置变更监听和回调的类型系统

### 1.3 设计目标
实现100%的配置类型覆盖、支持严格的类型检查、提供智能的配置提示、确保配置变更的类型安全和支持配置模式的版本演进。

## 2. 接口定义

### 2.1 输入输出规范

#### 核心配置接口
```typescript
// 配置管理器接口
interface IConfigurationManager {
  // 配置访问
  get<T = any>(key: string, defaultValue?: T): T;
  getTyped<K extends keyof ConfigurationSchema>(key: K): ConfigurationSchema[K];
  has(key: string): boolean;
  
  // 配置设置
  set<T>(key: string, value: T): Promise<void>;
  setTyped<K extends keyof ConfigurationSchema>(
    key: K, 
    value: ConfigurationSchema[K]
  ): Promise<void>;
  delete(key: string): Promise<void>;
  
  // 批量操作
  getBatch<T extends readonly string[]>(
    keys: T
  ): Promise<{ [K in T[number]]: any }>;
  setBatch(updates: Partial<ConfigurationSchema>): Promise<void>;
  
  // 配置监听
  watch<K extends keyof ConfigurationSchema>(
    key: K,
    callback: ConfigChangeCallback<ConfigurationSchema[K]>
  ): () => void;
  
  // 配置验证
  validate(config: unknown): ValidationResult<ConfigurationSchema>;
  validatePartial(updates: Partial<ConfigurationSchema>): ValidationResult;
  
  // 配置导入导出
  export(): Promise<ConfigSnapshot>;
  import(snapshot: ConfigSnapshot): Promise<void>;
}

// 配置工厂接口
interface IConfigurationFactory {
  createManager(options: ConfigManagerOptions): Promise<IConfigurationManager>;
  createValidator<T>(schema: ConfigSchema<T>): IConfigValidator<T>;
  createWatcher<T>(config: WatcherConfig<T>): IConfigWatcher<T>;
}
```

### 2.2 参数验证规则
- configKey: 非空字符串，支持点分隔的嵌套路径，长度1-200字符
- configValue: 支持JSON序列化的所有类型，单个值大小限制10MB
- ConfigSchema: 必须包含完整的类型定义和验证规则
- ConfigChangeCallback: 必须是有效的函数类型，支持异步调用
- ConfigSnapshot: 必须包含版本信息和完整的配置数据

### 2.3 返回格式定义
```typescript
// 配置验证结果
interface ValidationResult<T = any> {
  success: boolean;
  data: T | null;
  errors: ConfigValidationError[];
  warnings: ConfigValidationWarning[];
  metadata: ValidationMetadata;
}

// 配置快照格式
interface ConfigSnapshot {
  version: string;
  timestamp: Date;
  checksum: string;
  configuration: ConfigurationSchema;
  metadata: SnapshotMetadata;
  layers: ConfigLayerSnapshot[];
}

// 配置变更结果
interface ConfigChangeResult {
  success: boolean;
  previousValue: any;
  newValue: any;
  affectedKeys: string[];
  timestamp: Date;
  changeId: string;
}
```

## 3. 核心逻辑

### 3.1 处理流程描述

#### 配置层次结构类型
```typescript
// 配置层级枚举
enum ConfigLayer {
  SYSTEM_DEFAULT = 0,    // 系统默认配置
  SYSTEM_GLOBAL = 1,     // 系统全局配置
  USER_GLOBAL = 2,       // 用户全局配置
  PROJECT_LOCAL = 3,     // 项目本地配置
  SESSION_RUNTIME = 4,   // 会话运行时配置
  OVERRIDE_TEMPORARY = 5  // 临时覆盖配置
}

// 配置源类型
enum ConfigSource {
  DEFAULT = 'default',
  FILE_JSON = 'file_json',
  FILE_JS = 'file_js',
  ENVIRONMENT = 'environment',
  COMMAND_LINE = 'command_line',
  API = 'api',
  DATABASE = 'database'
}

// 配置状态枚举
enum ConfigStatus {
  UNINITIALIZED = 'uninitialized',
  LOADING = 'loading',
  LOADED = 'loaded',
  ERROR = 'error',
  UPDATING = 'updating',
  SYNCHRONIZED = 'synchronized'
}
```

### 3.2 关键算法说明

#### 类型安全的配置合并算法
```typescript
// 配置合并策略
type MergeStrategy = 
  | 'shallow'      // 浅合并
  | 'deep'         // 深合并  
  | 'replace'      // 完全替换
  | 'array_concat' // 数组连接
  | 'array_replace'; // 数组替换

// 合并配置类型
interface MergeConfig {
  strategy: MergeStrategy;
  customMergers?: Record<string, MergeFunction>;
  arrayHandling?: ArrayMergeStrategy;
  conflictResolution?: ConflictResolution;
}

// 类型安全的合并函数
type ConfigMerger<T> = (target: T, source: Partial<T>, config: MergeConfig) => T;

// 配置路径解析器
interface IConfigPathResolver {
  resolve<T>(
    path: string, 
    config: ConfigurationSchema
  ): T | undefined;
  
  set<T>(
    path: string, 
    value: T, 
    config: ConfigurationSchema
  ): ConfigurationSchema;
  
  exists(path: string, config: ConfigurationSchema): boolean;
  list(prefix: string, config: ConfigurationSchema): string[];
}
```

#### 动态配置类型推断
```typescript
// 配置键路径类型
type ConfigPath<T, K extends keyof T = keyof T> = 
  K extends string 
    ? T[K] extends Record<string, any>
      ? `${K}` | `${K}.${ConfigPath<T[K]>}`
      : `${K}`
    : never;

// 配置值类型提取
type ConfigValue<T, P extends string> = 
  P extends keyof T 
    ? T[P]
    : P extends `${infer K}.${infer Rest}`
      ? K extends keyof T
        ? ConfigValue<T[K], Rest>
        : never
      : never;

// 类型安全的配置访问器
interface TypedConfigAccessor<T> {
  get<P extends ConfigPath<T>>(path: P): ConfigValue<T, P>;
  set<P extends ConfigPath<T>>(path: P, value: ConfigValue<T, P>): Promise<void>;
  watch<P extends ConfigPath<T>>(
    path: P, 
    callback: (value: ConfigValue<T, P>) => void
  ): () => void;
}
```

### 3.3 数据结构定义

#### 核心配置结构
```typescript
// 主配置模式定义
interface ConfigurationSchema {
  // 核心系统配置
  core: {
    apiKey?: string;
    apiBaseUrl?: string;
    model: string;
    fallbackModel?: string;
    maxRetries: number;
    timeout: number;
    workingDirectory: string;
    debugMode: boolean;
    logLevel: LogLevel;
  };
  
  // Agent配置
  agent: {
    model: string;
    fallbackModel?: string;
    maxTokens?: number;
    temperature: number;
    enableSteering: boolean;
    concurrencyLimit: number;
    allowedTools?: string[];
    disallowedTools?: string[];
    planMode: boolean;
    contextWindow: number;
    compressionThreshold: number;
  };
  
  // 工具配置
  tools: {
    enabled: string[];
    disabled: string[];
    permissions: ToolPermissionMatrix;
    concurrency: {
      maxConcurrent: number;
      enableLoadBalancing: boolean;
      queueSize: number;
    };
    validation: {
      enableNineLayerValidation: boolean;
      strictMode: boolean;
      validationTimeout: number;
    };
    fileTracking: {
      enableStateTracking: boolean;
      trackingTimeout: number;
      maxTrackedFiles: number;
    };
  };
  
  // UI配置
  ui: {
    theme: 'light' | 'dark' | 'auto';
    showProgress: boolean;
    enableAnimations: boolean;
    compactMode: boolean;
    fontSize: number;
    fontFamily: string;
    colorScheme: ColorSchemeConfig;
    layout: LayoutConfig;
  };
  
  // MCP服务器配置
  mcp: {
    servers: Record<string, MCPServerConfig>;
    globalTimeout: number;
    retryAttempts: number;
    enableAutoReconnect: boolean;
    healthCheckInterval: number;
  };
  
  // 日志配置
  logging: {
    level: LogLevel;
    file?: string;
    maxFileSize: number;
    maxFiles: number;
    enableConsole: boolean;
    enableFile: boolean;
    format: LogFormat;
    filters: LogFilter[];
  };
  
  // 性能配置
  performance: {
    enableCaching: boolean;
    cacheSize: number;
    cacheTtl: number;
    enableProfiling: boolean;
    memoryLimit: number;
    cpuLimit: number;
  };
  
  // 安全配置
  security: {
    enableSandbox: boolean;
    allowedDomains: string[];
    blockedDomains: string[];
    maxRequestSize: number;
    enableAuditLog: boolean;
    encryptSensitiveData: boolean;
  };
  
  // 实验性功能配置
  experimental: {
    enableAdvancedFeatures: boolean;
    features: Record<string, boolean>;
    betaChannelEnabled: boolean;
  };
}

// 配置元数据
interface ConfigurationMetadata {
  version: string;
  schemaVersion: string;
  createdAt: Date;
  updatedAt: Date;
  source: ConfigSource;
  layer: ConfigLayer;
  checksum: string;
  tags: string[];
  description?: string;
  author?: string;
}

// 配置层快照
interface ConfigLayerSnapshot {
  layer: ConfigLayer;
  source: ConfigSource;
  path?: string;
  data: Partial<ConfigurationSchema>;
  metadata: ConfigurationMetadata;
}
```

## 4. 状态管理

### 4.1 内部状态定义

#### 配置状态管理器
```typescript
// 配置状态接口
interface ConfigurationState {
  status: ConfigStatus;
  currentConfig: ConfigurationSchema;
  layers: Map<ConfigLayer, ConfigLayerData>;
  watchers: Map<string, Set<ConfigWatcher>>;
  validationCache: Map<string, ValidationResult>;
  changeHistory: ConfigChangeRecord[];
  
  // 性能状态
  performance: {
    loadTime: number;
    lastAccessTime: Date;
    accessCount: number;
    cacheHitRate: number;
  };
  
  // 错误状态
  lastError?: ConfigurationError;
  errorCount: number;
  isHealthy: boolean;
}

// 配置层数据
interface ConfigLayerData {
  layer: ConfigLayer;
  source: ConfigSource;
  data: Partial<ConfigurationSchema>;
  metadata: ConfigurationMetadata;
  isActive: boolean;
  lastLoaded: Date;
  loadTime: number;
}

// 配置监听器
interface ConfigWatcher<T = any> {
  id: string;
  path: string;
  callback: ConfigChangeCallback<T>;
  options: WatcherOptions;
  isActive: boolean;
  lastTriggered?: Date;
  triggerCount: number;
}

// 配置变更记录
interface ConfigChangeRecord {
  id: string;
  timestamp: Date;
  path: string;
  oldValue: any;
  newValue: any;
  source: ConfigSource;
  layer: ConfigLayer;
  user?: string;
  reason?: string;
}
```

### 4.2 状态生命周期

#### 配置生命周期管理
```typescript
// 生命周期管理器接口
interface IConfigLifecycleManager {
  initialize(options: InitializationOptions): Promise<void>;
  load(sources: ConfigSource[]): Promise<void>;
  reload(layers?: ConfigLayer[]): Promise<void>;
  save(layers?: ConfigLayer[]): Promise<void>;
  dispose(): Promise<void>;
  
  // 状态查询
  getState(): ConfigurationState;
  isInitialized(): boolean;
  isHealthy(): boolean;
  
  // 生命周期事件
  onStateChange(callback: StateChangeCallback): () => void;
  onError(callback: ErrorCallback): () => void;
}

// 生命周期事件
interface ConfigLifecycleEvent {
  type: LifecycleEventType;
  timestamp: Date;
  source: ConfigSource;
  layer?: ConfigLayer;
  data?: any;
  error?: ConfigurationError;
  metadata: EventMetadata;
}

enum LifecycleEventType {
  INITIALIZATION_START = 'initialization_start',
  INITIALIZATION_COMPLETE = 'initialization_complete',
  LAYER_LOADED = 'layer_loaded',
  LAYER_FAILED = 'layer_failed',
  CONFIG_CHANGED = 'config_changed',
  VALIDATION_FAILED = 'validation_failed',
  ERROR_OCCURRED = 'error_occurred',
  RELOAD_TRIGGERED = 'reload_triggered'
}
```

### 4.3 持久化策略

#### 配置持久化类型
```typescript
// 持久化接口
interface IConfigPersistence {
  save(layer: ConfigLayer, data: Partial<ConfigurationSchema>): Promise<void>;
  load(layer: ConfigLayer): Promise<Partial<ConfigurationSchema> | null>;
  delete(layer: ConfigLayer): Promise<void>;
  
  // 快照管理
  createSnapshot(): Promise<ConfigSnapshot>;
  restoreSnapshot(snapshot: ConfigSnapshot): Promise<void>;
  listSnapshots(): Promise<ConfigSnapshotInfo[]>;
  deleteSnapshot(id: string): Promise<void>;
  
  // 备份和恢复
  backup(): Promise<string>;
  restore(backupId: string): Promise<void>;
  
  // 同步功能
  sync(remote: RemoteConfigSource): Promise<SyncResult>;
  enableAutoSync(options: AutoSyncOptions): void;
  disableAutoSync(): void;
}

// 远程配置源
interface RemoteConfigSource {
  type: 'http' | 'websocket' | 'database' | 'cloud';
  endpoint: string;
  credentials?: ConfigCredentials;
  options: RemoteSourceOptions;
}

// 同步结果
interface SyncResult {
  success: boolean;
  conflicts: ConfigConflict[];
  merged: Partial<ConfigurationSchema>;
  metadata: SyncMetadata;
}

// 配置冲突
interface ConfigConflict {
  path: string;
  localValue: any;
  remoteValue: any;
  resolution: ConflictResolution;
  resolvedValue: any;
}
```

## 5. 异常处理

### 5.1 异常分类体系

#### 配置异常类型层次
```typescript
// 基础配置异常
abstract class ConfigurationError extends Error {
  public readonly code: string;
  public readonly path?: string;
  public readonly layer?: ConfigLayer;
  public readonly source?: ConfigSource;
  public readonly timestamp: Date;
  public readonly context: Record<string, any>;
  
  constructor(
    message: string,
    code: string,
    options: ConfigErrorOptions = {}
  ) {
    super(message);
    this.name = this.constructor.name;
    this.code = code;
    this.path = options.path;
    this.layer = options.layer;
    this.source = options.source;
    this.timestamp = new Date();
    this.context = options.context || {};
  }
}

// 具体异常类型
class ConfigValidationError extends ConfigurationError {
  public readonly validationErrors: ValidationError[];
  
  constructor(
    path: string,
    errors: ValidationError[],
    context: Record<string, any> = {}
  ) {
    super(`Validation failed for ${path}`, 'CONFIG_VALIDATION_ERROR', { path, context });
    this.validationErrors = errors;
  }
}

class ConfigLoadError extends ConfigurationError {
  public readonly sourceFile?: string;
  
  constructor(
    source: ConfigSource,
    layer: ConfigLayer,
    cause: string,
    context: Record<string, any> = {}
  ) {
    super(`Failed to load config from ${source}`, 'CONFIG_LOAD_ERROR', { source, layer, context });
    this.sourceFile = context.file;
  }
}

class ConfigParseError extends ConfigurationError {
  public readonly parseDetails: ParseErrorDetails;
  
  constructor(
    path: string,
    details: ParseErrorDetails,
    context: Record<string, any> = {}
  ) {
    super(`Parse error in ${path}`, 'CONFIG_PARSE_ERROR', { path, context });
    this.parseDetails = details;
  }
}

class ConfigConflictError extends ConfigurationError {
  public readonly conflicts: ConfigConflict[];
  
  constructor(
    conflicts: ConfigConflict[],
    context: Record<string, any> = {}
  ) {
    super(`Configuration conflicts detected`, 'CONFIG_CONFLICT_ERROR', { context });
    this.conflicts = conflicts;
  }
}

class ConfigVersionError extends ConfigurationError {
  public readonly currentVersion: string;
  public readonly requiredVersion: string;
  
  constructor(
    current: string,
    required: string,
    context: Record<string, any> = {}
  ) {
    super(`Version mismatch: current ${current}, required ${required}`, 'CONFIG_VERSION_ERROR', { context });
    this.currentVersion = current;
    this.requiredVersion = required;
  }
}
```

### 5.2 监控日志策略

#### 配置监控指标
```typescript
// 监控指标收集器
interface IConfigMetricsCollector {
  recordLoad(layer: ConfigLayer, duration: number): void;
  recordAccess(path: string, hit: boolean): void;
  recordChange(path: string, source: ConfigSource): void;
  recordValidation(path: string, success: boolean, duration: number): void;
  recordError(error: ConfigurationError): void;
  
  getMetrics(): Promise<ConfigMetrics>;
  getHealth(): Promise<ConfigHealth>;
}

// 配置指标
interface ConfigMetrics {
  // 访问指标
  totalAccesses: number;
  cacheHitRate: number;
  averageAccessTime: number;
  
  // 加载指标
  totalLoads: number;
  averageLoadTime: number;
  loadSuccessRate: number;
  
  // 变更指标
  totalChanges: number;
  changesPerHour: number;
  averageChangeProcessingTime: number;
  
  // 验证指标
  totalValidations: number;
  validationSuccessRate: number;
  averageValidationTime: number;
  
  // 错误指标
  totalErrors: number;
  errorRate: number;
  errorsByType: Record<string, number>;
  
  // 性能指标
  memoryUsage: number;
  cpuUsage: number;
  diskUsage: number;
  
  lastUpdated: Date;
}

// 配置健康状态
interface ConfigHealth {
  status: HealthStatus;
  score: number;
  checks: HealthCheck[];
  issues: HealthIssue[];
  lastCheck: Date;
  
  recommendations: string[];
  warnings: string[];
}
```

### 5.3 错误恢复机制

#### 配置恢复策略
```typescript
// 恢复策略定义
interface ConfigRecoveryStrategy {
  name: string;
  applicableErrors: string[];
  priority: number;
  execute: (error: ConfigurationError) => Promise<RecoveryResult>;
  validate: (result: RecoveryResult) => boolean;
  canRetry: boolean;
  maxAttempts: number;
}

// 恢复管理器
interface IConfigRecoveryManager {
  registerStrategy(strategy: ConfigRecoveryStrategy): void;
  executeRecovery(error: ConfigurationError): Promise<RecoveryResult>;
  getRecoveryHistory(): Promise<RecoveryAttempt[]>;
  
  // 自动恢复
  enableAutoRecovery(strategies: string[]): void;
  disableAutoRecovery(): void;
  isAutoRecoveryEnabled(): boolean;
}

// 恢复结果
interface RecoveryResult {
  success: boolean;
  action: RecoveryAction;
  restoredConfig?: Partial<ConfigurationSchema>;
  fallbackUsed: boolean;
  message: string;
  metadata: Record<string, any>;
}

enum RecoveryAction {
  RELOAD_CONFIG = 'reload_config',
  USE_FALLBACK = 'use_fallback',
  RESTORE_BACKUP = 'restore_backup',
  RESET_TO_DEFAULT = 'reset_to_default',
  MANUAL_INTERVENTION = 'manual_intervention'
}
```

## 6. 性能要求

### 6.1 响应时间目标
- **配置读取**: < 5ms (缓存命中), < 50ms (缓存未命中)
- **配置写入**: < 100ms (内存), < 1秒 (持久化)
- **配置验证**: < 50ms (简单验证), < 500ms (复杂验证)
- **配置加载**: < 2秒 (本地文件), < 10秒 (远程源)
- **热更新处理**: < 200ms

### 6.2 并发处理能力
- **并发读取**: 支持10000+个并发配置读取
- **并发写入**: 支持100个并发配置更新
- **监听器数量**: 支持1000+个活跃配置监听器
- **层级处理**: 支持10个配置层级同时管理

### 6.3 资源使用限制
- **内存使用**: 基础内存 < 20MB，每1000个配置项 < 1MB
- **CPU使用率**: 正常操作 < 5%，批量操作 < 30%
- **磁盘I/O**: 写入频率 < 10 operations/second
- **网络带宽**: 同步操作 < 1MB/second

## 7. 安全考虑

### 7.1 权限控制机制

#### 配置权限模型
```typescript
// 配置权限接口
interface ConfigPermission {
  path: string;
  operations: ConfigOperation[];
  conditions: PermissionCondition[];
  userGroups: string[];
  expiresAt?: Date;
}

// 配置操作类型
enum ConfigOperation {
  READ = 'read',
  WRITE = 'write',
  DELETE = 'delete',
  CREATE = 'create',
  VALIDATE = 'validate',
  EXPORT = 'export',
  IMPORT = 'import'
}

// 权限验证器
interface IConfigPermissionValidator {
  checkPermission(
    user: UserContext,
    operation: ConfigOperation,
    path: string
  ): Promise<boolean>;
  
  grantPermission(
    user: UserContext,
    permission: ConfigPermission
  ): Promise<void>;
  
  revokePermission(
    user: UserContext,
    path: string,
    operation: ConfigOperation
  ): Promise<void>;
  
  listPermissions(user: UserContext): Promise<ConfigPermission[]>;
}
```

### 7.2 数据安全保护

#### 敏感配置处理
```typescript
// 敏感配置标记
type SensitiveConfig<T> = T & { readonly __sensitive: true };
type EncryptedConfig<T> = T & { readonly __encrypted: true };

// 敏感数据处理器
interface ISensitiveDataHandler {
  encrypt<T>(data: T, context: EncryptionContext): EncryptedConfig<T>;
  decrypt<T>(data: EncryptedConfig<T>, context: DecryptionContext): T;
  mask<T>(data: T, maskingRules: MaskingRule[]): T;
  isSensitive(path: string): boolean;
}

// 加密上下文
interface EncryptionContext {
  algorithm: EncryptionAlgorithm;
  keyId: string;
  iv?: string;
  additionalData?: string;
}

// 掩码规则
interface MaskingRule {
  path: string;
  strategy: MaskingStrategy;
  pattern?: RegExp;
  replacement?: string;
}

enum MaskingStrategy {
  FULL_MASK = 'full_mask',
  PARTIAL_MASK = 'partial_mask',
  HASH = 'hash',
  REMOVE = 'remove'
}
```

### 7.3 攻击防护措施

#### 配置安全验证
```typescript
// 安全验证器
interface IConfigSecurityValidator {
  validateInput(path: string, value: any): SecurityValidationResult;
  detectInjection(value: string): boolean;
  validatePath(path: string): boolean;
  checkSizeLimit(value: any): boolean;
  validateFormat(value: any, expectedType: string): boolean;
}

// 安全验证结果
interface SecurityValidationResult {
  isSecure: boolean;
  threats: SecurityThreat[];
  recommendations: string[];
  severity: ThreatSeverity;
}

// 安全威胁
interface SecurityThreat {
  type: ThreatType;
  description: string;
  severity: ThreatSeverity;
  mitigation: string;
}

enum ThreatType {
  INJECTION = 'injection',
  PATH_TRAVERSAL = 'path_traversal',
  BUFFER_OVERFLOW = 'buffer_overflow',
  PRIVILEGE_ESCALATION = 'privilege_escalation',
  DATA_EXFILTRATION = 'data_exfiltration'
}

enum ThreatSeverity {
  LOW = 'low',
  MEDIUM = 'medium',
  HIGH = 'high',
  CRITICAL = 'critical'
}
```

## 8. 依赖关系

### 8.1 上游依赖模块

#### 核心依赖类型
```typescript
// 文件系统类型依赖
import type {
  FileSystem,
  FileWatcher,
  PathResolver
} from './filesystem-types';

// 验证系统类型依赖
import type {
  Validator,
  ValidationRule,
  Schema
} from './validation-types';

// 事件系统类型依赖
import type {
  EventEmitter,
  EventListener,
  EventMetadata
} from './event-types';

// 加密系统类型依赖
import type {
  Encryptor,
  KeyManager,
  CipherSuite
} from './crypto-types';
```

### 8.2 下游调用接口

#### 配置系统集成接口
```typescript
// Agent配置接口
interface IAgentConfigProvider {
  getAgentConfig(): AgentConfiguration;
  updateAgentConfig(updates: Partial<AgentConfiguration>): Promise<void>;
  onAgentConfigChange(callback: (config: AgentConfiguration) => void): () => void;
}

// 工具配置接口
interface IToolConfigProvider {
  getToolConfig(toolName: string): ToolConfiguration | null;
  updateToolConfig(toolName: string, updates: Partial<ToolConfiguration>): Promise<void>;
  onToolConfigChange(toolName: string, callback: (config: ToolConfiguration) => void): () => void;
}

// UI配置接口
interface IUIConfigProvider {
  getUIConfig(): UIConfiguration;
  updateUIConfig(updates: Partial<UIConfiguration>): Promise<void>;
  onUIConfigChange(callback: (config: UIConfiguration) => void): () => void;
}

// MCP配置接口
interface IMCPConfigProvider {
  getMCPConfig(): MCPConfiguration;
  addMCPServer(name: string, config: MCPServerConfig): Promise<void>;
  removeMCPServer(name: string): Promise<void>;
  onMCPConfigChange(callback: (config: MCPConfiguration) => void): () => void;
}
```

### 8.3 配置依赖项目

#### 环境配置类型
```typescript
// 环境变量配置
interface EnvironmentConfiguration {
  NODE_ENV: 'development' | 'production' | 'test';
  CONFIG_DIR: string;
  CONFIG_FORMAT: 'json' | 'yaml' | 'toml';
  CONFIG_ENCRYPTION_KEY?: string;
  CONFIG_VALIDATION_STRICT: boolean;
  CONFIG_HOT_RELOAD: boolean;
  CONFIG_BACKUP_ENABLED: boolean;
}

// 命令行配置
interface CommandLineConfiguration {
  configFile?: string;
  configDir?: string;
  logLevel?: LogLevel;
  debugMode?: boolean;
  overrides: Record<string, any>;
}

// 外部服务配置
interface ExternalServiceConfiguration {
  configServer?: {
    url: string;
    apiKey: string;
    pollInterval: number;
  };
  
  database?: {
    connectionString: string;
    tableName: string;
    encryptionKey: string;
  };
  
  cloudStorage?: {
    provider: 'aws' | 'gcp' | 'azure';
    bucket: string;
    credentials: CloudCredentials;
  };
}
```

## 9. 测试验证

### 9.1 单元测试规范

#### 配置类型测试框架
```typescript
describe('Configuration Type System', () => {
  describe('Type Safety', () => {
    it('should enforce configuration schema types', () => {
      const config: ConfigurationSchema = createTestConfig();
      
      // 类型安全的访问
      const apiKey: string | undefined = config.core.apiKey;
      const timeout: number = config.core.timeout;
      const theme: 'light' | 'dark' | 'auto' = config.ui.theme;
      
      expect(typeof timeout).toBe('number');
      expect(['light', 'dark', 'auto']).toContain(theme);
    });
    
    it('should validate nested configuration paths', () => {
      type CoreApiKey = ConfigValue<ConfigurationSchema, 'core.apiKey'>;
      type UITheme = ConfigValue<ConfigurationSchema, 'ui.theme'>;
      
      const accessor = new TypedConfigAccessor<ConfigurationSchema>();
      
      const apiKey = accessor.get('core.apiKey');
      const theme = accessor.get('ui.theme');
      
      // TypeScript should infer correct types
      expectType<string | undefined>(apiKey);
      expectType<'light' | 'dark' | 'auto'>(theme);
    });
  });
  
  describe('Configuration Validation', () => {
    it('should validate configuration against schema', async () => {
      const validator = new ConfigurationValidator();
      
      const validConfig: Partial<ConfigurationSchema> = {
        core: {
          model: 'claude-3-5-sonnet',
          timeout: 30000,
          maxRetries: 3,
          workingDirectory: '/tmp'
        }
      };
      
      const result = await validator.validate(validConfig);
      expect(result.success).toBe(true);
      expect(result.errors).toHaveLength(0);
    });
    
    it('should reject invalid configuration', async () => {
      const validator = new ConfigurationValidator();
      
      const invalidConfig = {
        core: {
          timeout: 'invalid', // should be number
          maxRetries: -1      // should be positive
        }
      };
      
      const result = await validator.validate(invalidConfig);
      expect(result.success).toBe(false);
      expect(result.errors.length).toBeGreaterThan(0);
    });
  });
});
```

#### 配置合并测试
```typescript
describe('Configuration Merging', () => {
  it('should merge configurations with correct precedence', () => {
    const baseConfig: Partial<ConfigurationSchema> = {
      core: {
        model: 'claude-3-haiku',
        timeout: 30000
      },
      ui: {
        theme: 'light'
      }
    };
    
    const userConfig: Partial<ConfigurationSchema> = {
      core: {
        model: 'claude-3-5-sonnet' // Override model
      },
      ui: {
        showProgress: false // Add new setting
      }
    };
    
    const merger = new ConfigurationMerger();
    const merged = merger.merge(baseConfig, userConfig);
    
    expect(merged.core.model).toBe('claude-3-5-sonnet');
    expect(merged.core.timeout).toBe(30000);
    expect(merged.ui.theme).toBe('light');
    expect(merged.ui.showProgress).toBe(false);
  });
});
```

### 9.2 集成测试场景

#### 端到端配置测试
```typescript
describe('Configuration System Integration', () => {
  it('should load and manage multi-layer configuration', async () => {
    const configManager = new ConfigurationManager();
    
    // 模拟多层配置
    await configManager.addLayer(ConfigLayer.SYSTEM_DEFAULT, {
      core: { model: 'claude-3-haiku', timeout: 30000 }
    });
    
    await configManager.addLayer(ConfigLayer.USER_GLOBAL, {
      core: { model: 'claude-3-5-sonnet' }
    });
    
    await configManager.addLayer(ConfigLayer.PROJECT_LOCAL, {
      ui: { theme: 'dark' }
    });
    
    // 验证合并结果
    const config = configManager.getConfiguration();
    expect(config.core.model).toBe('claude-3-5-sonnet'); // User override
    expect(config.core.timeout).toBe(30000); // From default
    expect(config.ui.theme).toBe('dark'); // From project
  });
  
  it('should handle configuration hot reload', async () => {
    const configManager = new ConfigurationManager();
    const changeEvents: ConfigChangeEvent[] = [];
    
    // 监听配置变更
    configManager.onConfigChange((event) => {
      changeEvents.push(event);
    });
    
    // 模拟配置文件变更
    await configManager.updateConfiguration({
      core: { timeout: 60000 }
    });
    
    expect(changeEvents).toHaveLength(1);
    expect(changeEvents[0].path).toBe('core.timeout');
    expect(changeEvents[0].newValue).toBe(60000);
  });
});
```

### 9.3 验收标准定义

#### 类型安全验收标准
- **编译时类型检查**: 100%通过，零类型错误
- **运行时类型验证**: > 99.9%成功率
- **配置路径推断**: 100%准确的IDE智能提示
- **类型文档覆盖**: 100%的配置项有完整类型声明

#### 性能验收标准
- **配置读取延迟**: P95 < 10ms
- **配置写入延迟**: P99 < 200ms
- **热更新响应**: < 500ms
- **内存使用**: < 50MB for 10000 config items

#### 功能验收标准
- **配置验证成功率**: > 99.9%
- **层级合并准确性**: 100%
- **热更新可靠性**: > 99.9%
- **持久化一致性**: 100%

## 10. AI编译器指令

### 10.1 实现语言选择
- **主语言**: TypeScript 5.0+，启用最严格的类型检查选项
- **类型系统**: 广泛使用高级类型特性（条件类型、映射类型、模板字面量类型）
- **验证库**: 集成Zod或类似的运行时验证库
- **序列化**: 支持JSON、YAML、TOML等多种配置格式

### 10.2 代码风格要求
- **类型优先**: 所有配置项都必须有明确的类型定义
- **不变性**: 使用readonly修饰符确保配置的不可变性
- **泛型约束**: 使用泛型和约束确保类型安全的配置访问
- **文档完整**: 每个配置选项都有详细的JSDoc文档

### 10.3 部署方式规范
- **模块化**: 配置类型按功能模块分离，支持按需导入
- **版本兼容**: 提供配置模式的版本迁移机制
- **运行时支持**: 提供完整的运行时类型检查和验证
- **IDE集成**: 提供完整的IDE智能提示和错误检查

### 具体实现示例

#### 完整的配置类型系统实现
```typescript
// src/types/config.ts

// 基础类型导入
import { z } from 'zod';

// 配置路径类型
export type ConfigPath<T, K extends keyof T = keyof T> = 
  K extends string 
    ? T[K] extends Record<string, any>
      ? `${K}` | `${K}.${ConfigPath<T[K]>}`
      : `${K}`
    : never;

// 配置值提取类型
export type ConfigValue<T, P extends string> = 
  P extends keyof T 
    ? T[P]
    : P extends `${infer K}.${infer Rest}`
      ? K extends keyof T
        ? ConfigValue<T[K], Rest>
        : never
      : never;

// 主配置模式
export interface ConfigurationSchema {
  readonly core: CoreConfiguration;
  readonly agent: AgentConfiguration;
  readonly tools: ToolsConfiguration;
  readonly ui: UIConfiguration;
  readonly mcp: MCPConfiguration;
  readonly logging: LoggingConfiguration;
  readonly performance: PerformanceConfiguration;
  readonly security: SecurityConfiguration;
  readonly experimental: ExperimentalConfiguration;
}

// 核心配置
export interface CoreConfiguration {
  readonly apiKey?: string;
  readonly apiBaseUrl?: string;
  readonly model: string;
  readonly fallbackModel?: string;
  readonly maxRetries: number;
  readonly timeout: number;
  readonly workingDirectory: string;
  readonly debugMode: boolean;
  readonly logLevel: LogLevel;
}

// 日志级别
export enum LogLevel {
  DEBUG = 'debug',
  INFO = 'info',
  WARN = 'warn',
  ERROR = 'error'
}

// 配置验证模式
export const ConfigurationSchemaValidator = z.object({
  core: z.object({
    apiKey: z.string().optional(),
    apiBaseUrl: z.string().url().optional(),
    model: z.string().min(1),
    fallbackModel: z.string().optional(),
    maxRetries: z.number().int().min(0).max(10),
    timeout: z.number().int().min(1000).max(300000),
    workingDirectory: z.string().min(1),
    debugMode: z.boolean(),
    logLevel: z.nativeEnum(LogLevel)
  }),
  
  agent: z.object({
    model: z.string().min(1),
    fallbackModel: z.string().optional(),
    maxTokens: z.number().int().positive().optional(),
    temperature: z.number().min(0).max(2),
    enableSteering: z.boolean(),
    concurrencyLimit: z.number().int().min(1).max(100),
    allowedTools: z.array(z.string()).optional(),
    disallowedTools: z.array(z.string()).optional(),
    planMode: z.boolean(),
    contextWindow: z.number().int().positive(),
    compressionThreshold: z.number().int().positive()
  }),
  
  tools: z.object({
    enabled: z.array(z.string()),
    disabled: z.array(z.string()),
    permissions: z.record(z.any()), // Tool permission matrix
    concurrency: z.object({
      maxConcurrent: z.number().int().min(1).max(100),
      enableLoadBalancing: z.boolean(),
      queueSize: z.number().int().positive()
    }),
    validation: z.object({
      enableNineLayerValidation: z.boolean(),
      strictMode: z.boolean(),
      validationTimeout: z.number().int().positive()
    }),
    fileTracking: z.object({
      enableStateTracking: z.boolean(),
      trackingTimeout: z.number().int().positive(),
      maxTrackedFiles: z.number().int().positive()
    })
  }),
  
  ui: z.object({
    theme: z.enum(['light', 'dark', 'auto']),
    showProgress: z.boolean(),
    enableAnimations: z.boolean(),
    compactMode: z.boolean(),
    fontSize: z.number().int().min(8).max(72),
    fontFamily: z.string(),
    colorScheme: z.any(), // Color scheme config
    layout: z.any() // Layout config
  }),
  
  mcp: z.object({
    servers: z.record(z.any()), // MCP server configs
    globalTimeout: z.number().int().positive(),
    retryAttempts: z.number().int().min(0).max(10),
    enableAutoReconnect: z.boolean(),
    healthCheckInterval: z.number().int().positive()
  }),
  
  logging: z.object({
    level: z.nativeEnum(LogLevel),
    file: z.string().optional(),
    maxFileSize: z.number().int().positive(),
    maxFiles: z.number().int().positive(),
    enableConsole: z.boolean(),
    enableFile: z.boolean(),
    format: z.string(),
    filters: z.array(z.any())
  }),
  
  performance: z.object({
    enableCaching: z.boolean(),
    cacheSize: z.number().int().positive(),
    cacheTtl: z.number().int().positive(),
    enableProfiling: z.boolean(),
    memoryLimit: z.number().int().positive(),
    cpuLimit: z.number().min(0).max(100)
  }),
  
  security: z.object({
    enableSandbox: z.boolean(),
    allowedDomains: z.array(z.string()),
    blockedDomains: z.array(z.string()),
    maxRequestSize: z.number().int().positive(),
    enableAuditLog: z.boolean(),
    encryptSensitiveData: z.boolean()
  }),
  
  experimental: z.object({
    enableAdvancedFeatures: z.boolean(),
    features: z.record(z.boolean()),
    betaChannelEnabled: z.boolean()
  })
});

// 类型安全的配置访问器
export class TypedConfigAccessor<T extends Record<string, any>> {
  constructor(private config: T) {}
  
  get<P extends ConfigPath<T>>(path: P): ConfigValue<T, P> {
    return this.getValue(path, this.config);
  }
  
  set<P extends ConfigPath<T>>(path: P, value: ConfigValue<T, P>): T {
    return this.setValue(path, value, this.config);
  }
  
  has<P extends ConfigPath<T>>(path: P): boolean {
    return this.getValue(path, this.config) !== undefined;
  }
  
  private getValue(path: string, obj: any): any {
    return path.split('.').reduce((current, key) => current?.[key], obj);
  }
  
  private setValue(path: string, value: any, obj: any): any {
    const keys = path.split('.');
    const lastKey = keys.pop()!;
    const target = keys.reduce((current, key) => {
      if (!(key in current)) {
        current[key] = {};
      }
      return current[key];
    }, obj);
    
    return {
      ...obj,
      [lastKey]: value
    };
  }
}

// 配置验证器
export class ConfigurationValidator {
  async validate(config: unknown): Promise<ValidationResult<ConfigurationSchema>> {
    try {
      const validated = ConfigurationSchemaValidator.parse(config);
      return {
        success: true,
        data: validated,
        errors: [],
        warnings: [],
        metadata: {
          validatedAt: new Date(),
          validator: 'zod',
          version: '1.0.0'
        }
      };
    } catch (error) {
      if (error instanceof z.ZodError) {
        return {
          success: false,
          data: null,
          errors: error.errors.map(err => ({
            path: err.path.join('.'),
            message: err.message,
            code: err.code,
            expected: err.expected,
            received: err.received
          })),
          warnings: [],
          metadata: {
            validatedAt: new Date(),
            validator: 'zod',
            version: '1.0.0'
          }
        };
      }
      
      throw error;
    }
  }
}

// 类型安全的配置管理器
export class TypedConfigurationManager implements IConfigurationManager {
  private accessor: TypedConfigAccessor<ConfigurationSchema>;
  private validator: ConfigurationValidator;
  private watchers: Map<string, Set<Function>>;
  
  constructor(config: ConfigurationSchema) {
    this.accessor = new TypedConfigAccessor(config);
    this.validator = new ConfigurationValidator();
    this.watchers = new Map();
  }
  
  get<K extends ConfigPath<ConfigurationSchema>>(
    path: K
  ): ConfigValue<ConfigurationSchema, K> {
    return this.accessor.get(path);
  }
  
  async set<K extends ConfigPath<ConfigurationSchema>>(
    path: K,
    value: ConfigValue<ConfigurationSchema, K>
  ): Promise<void> {
    const oldValue = this.accessor.get(path);
    const newConfig = this.accessor.set(path, value);
    
    // 验证新配置
    const validation = await this.validator.validate(newConfig);
    if (!validation.success) {
      throw new ConfigValidationError(path, validation.errors);
    }
    
    // 更新配置
    this.accessor = new TypedConfigAccessor(validation.data!);
    
    // 通知监听器
    this.notifyWatchers(path, oldValue, value);
  }
  
  watch<K extends ConfigPath<ConfigurationSchema>>(
    path: K,
    callback: (value: ConfigValue<ConfigurationSchema, K>) => void
  ): () => void {
    if (!this.watchers.has(path)) {
      this.watchers.set(path, new Set());
    }
    
    this.watchers.get(path)!.add(callback);
    
    return () => {
      this.watchers.get(path)?.delete(callback);
    };
  }
  
  private notifyWatchers(path: string, oldValue: any, newValue: any): void {
    const callbacks = this.watchers.get(path);
    if (callbacks) {
      callbacks.forEach(callback => {
        try {
          callback(newValue);
        } catch (error) {
          console.error(`Configuration watcher error for ${path}:`, error);
        }
      });
    }
  }
}

// 导出所有类型
export type {
  ConfigurationSchema,
  CoreConfiguration,
  AgentConfiguration,
  ToolsConfiguration,
  UIConfiguration,
  MCPConfiguration,
  LoggingConfiguration,
  PerformanceConfiguration,
  SecurityConfiguration,
  ExperimentalConfiguration,
  
  // 工具类型
  ConfigPath,
  ConfigValue,
  ValidationResult,
  ConfigurationMetadata,
  ConfigSnapshot,
  ConfigChangeResult,
  
  // 接口类型
  IConfigurationManager,
  IConfigurationFactory,
  IConfigValidator,
  IConfigWatcher
};
```

这个完整的配置类型系统提供了：

1. **完整的类型安全**: 通过严格的TypeScript类型和Zod验证确保配置的类型安全
2. **智能路径推断**: 使用模板字面量类型实现配置路径的自动推断和补全
3. **运行时验证**: 集成Zod提供强大的运行时配置验证
4. **类型安全的访问**: 提供类型安全的配置读写接口
5. **热更新支持**: 支持配置的实时更新和监听
6. **分层管理**: 支持多层配置的合并和管理
7. **性能优化**: 通过类型系统优化配置访问性能