import {z} from 'zod'

export type GetApiV2WebhooksArgs = {sortBy?: ('name' | 'url' | 'createdBy' | 'integrationCount') | undefined, sortDirection?: ('ASC' | 'DESC') | undefined};

export type GetApiV2WebhooksOptions = {baseUrl?: string | undefined, basic?: string | undefined, fetch?: typeof fetch | undefined};

export const fetchWebhooksQueryResponseV2 = z.object({webhookId: z.string(), url: z.string(), eventTypes: z.array(z.string()), wabaNumbers: z.array(z.string()), integrationCount: z.number().int(), createdBy: z.string(), name: 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
};

/**
 * Get Webhooks
 * 
 * GET /v2/webhooks
 */
export const getApiV2Webhooks = async (args: GetApiV2WebhooksArgs, options?: GetApiV2WebhooksOptions) => {
const {baseUrl = "https://public.doubletick.io", fetch: fetchFn = fetch, basic} = options ?? {}

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

if (args.sortBy != null) query.append("sortBy", String(args.sortBy))
if (args.sortDirection != null) query.append("sortDirection", String(args.sortDirection))
if (basic !== undefined) headers.set("Authorization", basic)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/webhooks${query.size > 0 ? `?${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(fetchWebhooksQueryResponseV2, await res.json())
};