import {z} from 'zod'

export type GetApiApiV1AppAppIdPollerSinkIdArgs = {app_id: string, sink_id: string, limit?: number | undefined, iterator?: (string | null) | undefined, event_type?: (string | null) | undefined, channel?: (string | null) | undefined, after?: (string | null) | undefined};

export type GetApiApiV1AppAppIdPollerSinkIdOptions = {baseUrl?: string | undefined, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const pollingEndpointMessageOut = z.object({channels: z.array(z.string().max(128)).nullable().optional(), deliverAt: z.string().nullable().optional(), eventId: z.string().min(1).max(256).nullable().optional(), eventType: z.string().max(256), headers: z.record(z.string(), z.string()).nullable().optional(), id: z.string().min(31).max(31), payload: z.object({}), tags: z.array(z.string().max(128)).nullable().optional(), timestamp: z.string()});

export const pollingEndpointOut = z.object({data: z.array(pollingEndpointMessageOut), done: z.boolean(), iterator: z.string()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Poller Poll
 * 
 * GET /api/v1/app/{app_id}/poller/{sink_id}
 */
export const getApiApiV1AppAppIdPollerSinkId = async (args: GetApiApiV1AppAppIdPollerSinkIdArgs, options?: GetApiApiV1AppAppIdPollerSinkIdOptions) => {
const {baseUrl = "https://api.eu.svix.com", fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.iterator != null) query.append("iterator", String(args.iterator))
if (args.event_type != null) query.append("event_type", String(args.event_type))
if (args.channel != null) query.append("channel", String(args.channel))
if (args.after != null) query.append("after", String(args.after))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/app/${encodeURIComponent(String(args.app_id))}/poller/${encodeURIComponent(String(args.sink_id))}${query.size > 0 ? `?${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 validateResponse(pollingEndpointOut, await res.json())
};