import { API, apiFetch, getAuthToken } from './client';
import type { AppConfig } from '../components/Settings/types';

export interface RestartResponse {
  success: boolean;
  message?: string;
}

export async function getAppConfig(): Promise<[AppConfig | null, string | null]> {
  const [data, err] = await apiFetch<AppConfig>(API.config);
  return [data, err?.message ?? null];
}

export async function updateAppConfig(config: AppConfig): Promise<[true, null] | [false, string]> {
  const [, err] = await apiFetch<{ success: boolean }>(API.config, {
    method: 'PUT',
    body: { config },
  });
  return err ? [false, err.message] : [true, null];
}

export async function restartGateway(): Promise<{ status: number; data: RestartResponse }> {
  const token = getAuthToken();
  const resp = await fetch(API.restart, {
    method: 'POST',
    headers: token ? { Authorization: `Bearer ${token}` } : undefined,
  });
  const data = await resp.json().catch(() => ({ success: false }));
  return { status: resp.status, data };
}

export async function checkHealth(): Promise<boolean> {
  try {
    const resp = await fetch(API.health);
    return resp.ok;
  } catch {
    return false;
  }
}

/** 从 /health 端点获取后端版本号（源自 Cargo.toml 的 CARGO_PKG_VERSION）。 */
export async function getVersion(): Promise<string | null> {
  try {
    const resp = await fetch(API.health);
    if (!resp.ok) return null;
    const data = (await resp.json()) as { status?: string; version?: string };
    return data.version ?? null;
  } catch {
    return null;
  }
}