export type GetApiSyncStreamArgs = {token: string, since?: string | undefined};

export type GetApiSyncStreamOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

/**
 * SSE 实时同步流
 * 
 * GET /sync/stream
 */
export const getApiSyncStream = async (args: GetApiSyncStreamArgs, options?: GetApiSyncStreamOptions) => {
const {baseUrl = "http://localhost:3200/api", fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "text/event-stream")

if (args.token != null) query.append("token", String(args.token))
if (args.since != null) query.append("since", String(args.since))

const url = `${baseUrl.replace(/\/+$/, '')}/sync/stream${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return res.text()
};