export interface FeedItem {
  id: string;
  source: string;
  title: string;
  url: string;
  publishedAt: Date;
  content?: string;
  summary?: string;
}

export interface FetchInput {
  url: string;
  expectedFormat: "rss" | "atom";
}

export interface FetchError {
  source: string;
  reason: string;
  code: "NETWORK" | "TIMEOUT" | "PARSE" | "UNKNOWN";
}

export interface FeedResponse {
  source: string;
  body: string;
  contentType: string;
  statusCode: number;
}

export interface FetchResult {
  responses: FeedResponse[];
  errors: FetchError[];
  fetchedAt: Date;
}

export interface FeedSource {
  id: string;                    // Hash of URL
  url: string;                   // Feed URL
  name: string | null;           // Display name
  format: 'rss' | 'atom';        // Expected format
  pollIntervalMs: number;        // How often to check
  isActive: boolean;             // Whether to poll
  lastFetchedAt: Date | null;    // Last attempt timestamp
  lastSuccessAt: Date | null;    // Last successful fetch
  consecutiveFailures: number;   // Error streak counter
  createdAt: Date;
  updatedAt: Date;
}