import { API_BASE_URL } from "@config/config_frontend";

export interface ApiResult {
  status: string;
  detail?: string;
  reason?: string;
}

export interface SessionUser {
  id: string;
  email: string;
  name?: string;
  role?: string;
}

async function post(path: string, body?: object): Promise<ApiResult> {
  const response = await fetch(`${API_BASE_URL}${path}`, {
    method: "POST",
    credentials: "include",
    headers: { "Content-Type": "application/json" },
    body: body ? JSON.stringify(body) : undefined,
  });
  const result = (await response.json()) as ApiResult;
  if (!response.ok) throw new Error(result.detail ?? "Request failed");
  return result;
}

export function requestLogin(email: string, password: string): Promise<ApiResult> {
  return post("/auth/login/request", { email, password });
}

export function verifyLogin(email: string, otpCode: string): Promise<ApiResult> {
  return post("/auth/login/verify", { email, otp_code: otpCode });
}

export async function fetchSession(): Promise<boolean> {
  const response = await fetch(`${API_BASE_URL}/auth/session`, { credentials: "include" });
  return response.ok;
}

export async function fetchSessionUser(): Promise<SessionUser | null> {
  try {
    const response = await fetch(`${API_BASE_URL}/auth/session`, { credentials: "include" });
    if (!response.ok) return null;
    const data = (await response.json()) as { status: string; user?: SessionUser };
    return data.user ?? null;
  } catch {
    return null;
  }
}

export function logout(): Promise<ApiResult> {
  return post("/auth/logout");
}