export type ComponentStatus = "ready" | "unavailable" | "not_configured"
export type Health = {
  status: "ready" | "not_ready"
  checked_at: string
  components: { postgresql: { status: ComponentStatus }; redis: { status: ComponentStatus } }
}
export async function getHealth(signal?: AbortSignal): Promise<Health> {
  const response = await fetch("/api/v1/system/health", { signal, headers: { Accept: "application/json" } })
  if (!response.ok && response.status !== 503) throw new Error(`服务请求失败（${response.status}）`)
  const data: unknown = await response.json()
  if (!data || typeof data !== "object" || !("status" in data) || !("components" in data) || !("checked_at" in data)) throw new Error("服务返回了无效的状态数据")
  const health = data as Health
  const statuses = ["ready", "unavailable", "not_configured"]
  if (!["ready", "not_ready"].includes(health.status) || typeof health.checked_at !== "string" || !statuses.includes(health.components?.postgresql?.status) || !statuses.includes(health.components?.redis?.status)) throw new Error("服务返回了无效的状态数据")
  return health
}