import {z} from 'zod'

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

export const whatsappWebhook = z.object({id: z.string(), url: z.string(), kind: z.enum(["kapso", "meta"]), events: z.array(z.string()), active: z.boolean(), created_at: z.string(), updated_at: z.string(), project_id: z.string(), phone_number_id: z.string().nullable().optional(), secret_key: z.string().nullable().optional(), headers: z.record(z.string(), z.unknown()).nullable().optional(), buffer_enabled: z.boolean().nullable().optional(), buffer_window_seconds: z.number().int().nullable().optional(), max_buffer_size: z.number().int().nullable().optional(), buffer_events: z.array(z.string()).optional(), inactivity_minutes: z.number().int().nullable().optional(), payload_version: z.string().nullable().optional()});

export const whatsappWebhookResponse = z.object({data: whatsappWebhook});

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 project webhook
 * 
 * GET /whatsapp/webhooks/{webhook_id}
 */
export const getApiWhatsappWebhooksWebhookId = async (options?: GetApiWhatsappWebhooksWebhookIdOptions) => {
const {baseUrl = "https://api.kapso.ai/platform/v1", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (ApiKeyAuth !== undefined) headers.set("X-API-Key", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/whatsapp/webhooks/${encodeURIComponent(String(args.webhook_id))}${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(whatsappWebhookResponse, await res.json())
};