import type { DashboardSnapshot } from '@/types'

const envBaseUrl = import.meta.env.VITE_API_BASE_URL as string | undefined

export const API_BASE = (envBaseUrl?.trim() || 'http://127.0.0.1:8001').replace(/\/$/, '')

async function fetchJson<T>(path: string): Promise<T> {
  const response = await fetch(`${API_BASE}${path}`)
  if (!response.ok) {
    throw new Error(`请求失败: ${response.status} ${response.statusText}`)
  }
  return response.json() as Promise<T>
}

export function fetchDashboardSnapshot() {
  return fetchJson<DashboardSnapshot>('/api/dashboard/')
}

export function buildVideoFrameUrl(frameKey: number) {
  return `${API_BASE}/api/video/frame/?frame=${frameKey}&t=${Date.now()}`
}