export const CONTEXT7_API_BASE = "https://context7.com/api/v2";
export const EXA_URL = "https://api.exa.ai/search";
export const EXA_CONTENTS_URL = "https://api.exa.ai/contents";
export const BRAVE_URL = "https://api.search.brave.com/res/v1/web/search";
export const METASO_URL = "https://metaso.cn/api/v1/search";
export const METASO_READER_URL = "https://metaso.cn/api/v1/reader";
export const JINA_URL = "https://s.jina.ai/";
export const JINA_READER_URL = "https://r.jina.ai/";
export const OPENALEX_URL = "https://api.openalex.org";
export const OPENALEX_RESULTS_PER_PAGE = 10;
export const TAVILY_EXTRACT_URL = "https://api.tavily.com/extract";
export const TAVILY_SEARCH_URL = "https://api.tavily.com/search";
export const MINERU_URL = "https://mineru.net";
export const DEFAULT_SEARCH_RESULTS = 10;
export const PREVIEW_LINES = 25;
export const SEARCH_ENGINES = ["exa", "brave", "metaso", "jina", "tavily"] as const;
export const READ_ENGINES = ["tavily", "jina", "exa", "metaso"] as const;

export type SearchEngine = typeof SEARCH_ENGINES[number];
export type ReadEngine = typeof READ_ENGINES[number];

export interface SpinnerState {
  frame: number;
  interval: ReturnType<typeof setInterval> | null;
}

export interface SearchResult {
  title: string;
  url: string;
  snippet: string;
  source: SearchEngine;
}

export interface SearchDetails {
  query: string;
  engines?: SearchEngine[];
  count?: number;
  phase: "searching" | "merging" | "done";
  exaCount?: number;
  braveCount?: number;
  totalBeforeDedup?: number;
  totalAfterDedup?: number;
  metasoCount?: number;
  jinaCount?: number;
  tavilyCount?: number;
  metasoError?: string;
  jinaError?: string;
  exaError?: string;
  braveError?: string;
  tavilyError?: string;
  error?: string;
}

export interface WebReadDetails {
  urls: string[];
  engines?: ReadEngine[];
  succeeded: number;
  failed: number;
  error?: string;
  results?: { url: string; engine: ReadEngine; lines: number }[];
  failedUrls?: { url: string; engine: ReadEngine; error: string }[];
}

export interface DocsSearchDetails {
  library: string;
  query: string;
  phase: "resolving" | "fetching" | "done";
  resolvedId?: string;
  resolvedName?: string;
  snippets?: number;
  lines?: number;
  error?: string;
}

export interface LibraryResult {
  id: string;
  name?: string;
  title?: string;
}

export interface LibrarySearchResponse {
  results?: LibraryResult[];
}

export interface ExtractResult {
  url: string;
  raw_content: string;
}

export interface ExtractFailure {
  url: string;
  error: string;
}

export interface ExtractResponse {
  results: ExtractResult[];
  failed_results: ExtractFailure[];
}

export interface AcademicSearchDetails {
  query: string;
  phase: "searching" | "done";
  totalResults?: number;
  returnedResults?: number;
  error?: string;
}

export interface DocumentParseDetails {
  source: string;
  phase: "submitting" | "uploading" | "parsing" | "downloading" | "done";
  taskId?: string;
  totalPages?: number;
  lines?: number;
  bytes?: number;
  pages?: number;
  outputPath?: string;
  paginated?: boolean;
  error?: string;
}