import type { AppDocument, Space, StateResponse, Tpu } from "../types";

async function request(path: string, init?: RequestInit): Promise<StateResponse> {
  const response = await fetch(path, {
    ...init,
    headers: { "Content-Type": "application/json", ...(init?.headers || {}) },
  });
  const body = await response.json().catch(() => ({}));
  if (!response.ok) {
    const detail = typeof body.detail === "string" ? body.detail : body.detail?.message;
    throw new Error(detail || "Não foi possível concluir a operação.");
  }
  return body;
}

export const api = {
  state: () => request("/api/state"),
  updateSpace: (revision: number, id: string, changes: Partial<Space>) =>
    request(`/api/spaces/${encodeURIComponent(id)}`, { method: "PATCH", body: JSON.stringify({ expected_revision: revision, changes }) }),
  updateSpaces: (revision: number, updates: Array<{ id: string; changes: Partial<Space> }>) =>
    request("/api/spaces", { method: "PATCH", body: JSON.stringify({ expected_revision: revision, updates }) }),
  createSpace: (revision: number, space: Space) =>
    request("/api/spaces", { method: "POST", body: JSON.stringify({ expected_revision: revision, space }) }),
  deleteSpace: (revision: number, id: string) =>
    request(`/api/spaces/${encodeURIComponent(id)}?expected_revision=${revision}`, { method: "DELETE" }),
  updateTpu: (revision: number, id: string, changes: Partial<Tpu>) =>
    request(`/api/tpus/${encodeURIComponent(id)}`, { method: "PATCH", body: JSON.stringify({ expected_revision: revision, changes }) }),
  createTpu: (revision: number, tpu: Tpu) =>
    request("/api/tpus", { method: "POST", body: JSON.stringify({ expected_revision: revision, tpu }) }),
  deleteTpu: (revision: number, id: string) =>
    request(`/api/tpus/${encodeURIComponent(id)}?expected_revision=${revision}`, { method: "DELETE" }),
  importState: (revision: number, document: AppDocument) =>
    request("/api/import", { method: "POST", body: JSON.stringify({ expected_revision: revision, document }) }),
};