import {z} from 'zod'

export type OutboundWebhookEventTypeV1 = 'alert.triggered' | 'tender.matched' | 'tender.deadline';

export type OutboundWebhookEventSubscriptionsV1 = Array<OutboundWebhookEventTypeV1>;

export type OutboundWebhookCreateRequest = {url: string, events: OutboundWebhookEventSubscriptionsV1};

export type CreateApiApiV1UserWebhooksArgs = {'X-CSRF-Token': string, 'Idempotency-Key': string, body: OutboundWebhookCreateRequest};

export type CreateApiApiV1UserWebhooksOptions = {baseUrl?: string | undefined, cookieAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const outboundWebhookEventTypeV1 = z.enum(["alert.triggered", "tender.matched", "tender.deadline"]);

export const outboundWebhookEventSubscriptionsV1 = z.array(outboundWebhookEventTypeV1);

export const outboundWebhookOneTimeResponse = z.object({ok: z.literal(true), webhook: z.object({id: z.number().int().gte(1), secret: z.string(), key_id: z.string(), events: outboundWebhookEventSubscriptionsV1.optional()}), secret_visible_once: z.literal(true), idempotency_replayed: z.boolean(), idempotency_expires_at: z.number().int().gte(1)});

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
};

/**
 * Create an outbound webhook
 * 
 * POST /api/v1/user/webhooks
 */
export const createApiApiV1UserWebhooks = async (args: CreateApiApiV1UserWebhooksArgs, options?: CreateApiApiV1UserWebhooksOptions) => {
const {baseUrl = "https://openmercantil.es", fetch: fetchFn = fetch, cookieAuth} = options ?? {}

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

if (args['X-CSRF-Token'] != null) headers.set("X-CSRF-Token", String(args['X-CSRF-Token']))
if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (cookieAuth !== undefined) cookies.push("ob_sess=" + encodeURIComponent(cookieAuth))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/user/webhooks${query.size > 0 ? `?${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 validateResponse(outboundWebhookOneTimeResponse, await res.json())
};