export type RESTAuthPassword = {username: string, password: string};

export type RESTAuthToken = {token: string, state: string, redirect_endpoint: string};

export type RESTAuthData = {client_ip: string, password?: RESTAuthPassword | undefined, Token?: RESTAuthToken | undefined};

export type CreateApiAuthServerArgs = {'X-Auth-Token': string, server: string, body: RESTAuthData};

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

/**
 * Authenticate to specified server
 * 
 * POST /auth/{server}
 */
export const createApiAuthServer = async (args: CreateApiAuthServerArgs, options: CreateApiAuthServerOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")

if (args['X-Auth-Token'] != null) headers.set("X-Auth-Token", String(args['X-Auth-Token']))

const url = `${baseUrl.replace(/\/+$/, '')}/auth/${encodeURIComponent(String(args.server))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

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

return undefined
};