import type {
  CatalogInfo,
  Evaluation,
  Filters,
  Heatmap,
  ProjectionPoint,
  SearchResponse,
  Robustness,
  SimilarResponse,
} from "./types";

async function get<T>(path: string): Promise<T> {
  const res = await fetch(path);
  if (!res.ok) throw new Error(`${path} -> ${res.status} ${res.statusText}`);
  return res.json() as Promise<T>;
}

export const getCatalog = () => get<CatalogInfo>("/api/catalog");
export const getEvaluation = () => get<Evaluation>("/api/evaluation");
export const getRobustness = () => get<Robustness>("/api/robustness");
export const getProjection = () =>
  get<{ points: ProjectionPoint[] }>("/api/projection").then((d) => d.points);
export const getSimilar = (id: string, k = 6) =>
  get<SimilarResponse>(`/api/voices/${id}/similar?k=${k}`);

export async function search(
  query: string,
  topN = 12,
  filters: Filters = {},
): Promise<SearchResponse> {
  const res = await fetch("/api/search", {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ query, topN, filters }),
  });
  if (!res.ok) {
    const detail = await res.json().catch(() => null);
    throw new Error(detail?.detail ?? `search failed (${res.status})`);
  }
  return res.json();
}

export async function heatmap(query: string, topN = 10): Promise<Heatmap> {
  const res = await fetch("/api/heatmap", {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ query, topN }),
  });
  if (!res.ok) {
    const detail = await res.json().catch(() => null);
    throw new Error(detail?.detail ?? `heatmap failed (${res.status})`);
  }
  return res.json();
}