export interface Config {
  server: ServerConfig;
  dashboard?: DashboardConfig;
  repositories: RepoConfig[];
  filters: FiltersConfig;
  engine: EngineConfig;
  response: ResponseConfig;
  logging: LoggingConfig;
  polling?: PollingConfig;
}

export interface PollingConfig {
  enabled: boolean;
  intervalMinutes: number;
  lookbackMinutes: number;
}

export interface ServerConfig {
  port: number;
  host?: string;
  rateLimit?: number;
}

export interface DashboardConfig {
  enabled: boolean;
  auth?: DashboardAuthConfig;
}

export interface DashboardAuthConfig {
  type: 'basic' | 'token';
  username?: string;
  password?: string;
  token?: string;
}

export interface RepoConfig {
  owner: string;
  repo: string;
}

export interface FiltersConfig {
  labels: {
    include: string[];
    exclude: string[];
  };
  authors: {
    include?: string[];
    exclude: string[];
  };
  branches: {
    include: string[];
  };
}

export interface EngineConfig {
  backends: BackendsConfig;
  weights: BackendWeights;
  confidenceThreshold: number;
}

export interface BackendsConfig {
  checks: ChecksBackendConfig;
  diff: DiffBackendConfig;
  quality: QualityBackendConfig;
}

export interface ChecksBackendConfig {
  enabled: boolean;
}

export interface DiffBackendConfig {
  enabled: boolean;
  maxChanges: number;
  requireTests: boolean;
}

export interface QualityBackendConfig {
  enabled: boolean;
  minBodyLength: number;
}

export interface BackendWeights {
  checks: number;
  diff: number;
  quality: number;
}

export interface ResponseConfig {
  includeConfidence: boolean;
  includeReasoning: boolean;
  messages: {
    positive: string[];
    negative: string[];
    neutral: string[];
  };
  commentMarker: string;
  allowUpdates: boolean;
}

export interface LoggingConfig {
  level: string;
  file: string;
}

export type Impact = 'positive' | 'negative' | 'neutral';

export interface AnalysisResult {
  impact: Impact;
  confidence: number;
  reasoning: string;
}

export interface EngineBackend {
  name: string;
  analyze(event: WebhookEvent): Promise<AnalysisResult>;
}

export interface WebhookEvent {
  action: string;
  type: 'issue' | 'pull_request';
  number: number;
  title: string;
  body: string;
  owner: string;
  repo: string;
  author: string;
  labels: string[];
  branch?: string;
  sha?: string;
}

export interface CheckRun {
  name: string;
  status: string;
  conclusion: string | null;
}

export interface PRFile {
  filename: string;
  additions: number;
  deletions: number;
  changes: number;
}