import { fetchWithAuth } from "./client";

function buildQuery(params: Record<string, string | number | boolean | undefined>): string {
  const qs = Object.entries(params)
    .filter(([, v]) => v !== undefined)
    .map(([k, v]) => `${encodeURIComponent(k)}=${encodeURIComponent(String(v))}`)
    .join("&");
  return qs ? `?${qs}` : "";
}

export interface CitationRecord {
  id: string;
  query_id: string;
  platform: string;
  cited: boolean;
  citation_position: number | null;
  citation_text: string | null;
  competitor_brands: string[];
  confidence: number | null;
  match_type: string | null;
  queried_at: string;
}

export interface CitationListResponse {
  items: CitationRecord[];
  total: number;
}

export interface PlatformDistribution {
  platform: string;
  count: number;
}

export interface TrendPoint {
  date: string;
  count: number;
}

export interface CitationStats {
  total_queries: number;
  total_citations: number;
  citation_rate: number;
  avg_position: number | null;
  platform_distribution: PlatformDistribution[];
  trend: TrendPoint[];
}

export const citationsApi = {
  list: (token: string, params?: string) =>
    fetchWithAuth(
      `/api/v1/citations/${params ? `?${params}` : ""}`,
      {},
      token
    ) as Promise<CitationListResponse>,
  getStats: (token: string, brandId?: string, queryId?: string) =>
    fetchWithAuth(
      `/api/v1/citations/stats${buildQuery({ brand_id: brandId, query_id: queryId })}`,
      {},
      token
    ) as Promise<CitationStats>,
};