import {z} from 'zod'

export type DataOptions = {include_transcript?: boolean | undefined, include_recording_url?: boolean | undefined};

export type CustomHeaders = {[key: string]: string};

export type CreateWebhookRequest = {agent_id: string, name: string, url: string, events: Array<'CALL_STARTED' | 'CALL_FINISHED' | 'CALL_FAILED'>, data_options?: DataOptions | undefined, custom_headers?: CustomHeaders | undefined};

export type CreateApiV2WebhooksArgs = {body: CreateWebhookRequest};

export type CreateApiV2WebhooksOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const dataOptions = z.object({include_transcript: z.boolean().optional(), include_recording_url: z.boolean().optional()});

export const customHeaders = z.record(z.string(), z.string());

export const webhookResponse = z.object({id: z.string().optional(), agent_id: z.string().optional(), name: z.string().optional(), url: z.string().optional(), secret: z.string().optional(), events: z.array(z.string()).optional(), data_options: dataOptions.optional(), custom_headers: customHeaders.optional(), is_active: z.boolean().optional(), created_at: z.string().optional(), updated_at: z.string().optional()});

export const createApiV2WebhooksResponse = z.object({message: z.string(), data: webhookResponse});

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
};

/**
 * Creates a new webhook to receive call event notifications.
 * 
 * POST /v2/webhooks
 */
export const createApiV2Webhooks = async (args: CreateApiV2WebhooksArgs, options?: CreateApiV2WebhooksOptions) => {
const {baseUrl = "https://api.samora.ai", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v2/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(createApiV2WebhooksResponse, await res.json())
};