import {z} from 'zod'

export type CustomerResourceType = 'call' | 'chat' | 'form' | 'text_thread' | 'questionnaire' | 'intake_link' | 'interview' | 'referral' | 'outbound_lead' | 'meeting';

export type GetApiDeveloperResourceCustomerArgs = {resource_type: CustomerResourceType, resource_id: string};

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

export const resourceCustomerResponse = z.object({customer_id: z.string(), customer_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 Resource Customer
 * 
 * GET /developer/resource-customer
 */
export const getApiDeveloperResourceCustomer = async (args: GetApiDeveloperResourceCustomerArgs, options: GetApiDeveloperResourceCustomerOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.resource_type != null) query.append("resource_type", String(args.resource_type))
if (args.resource_id != null) query.append("resource_id", String(args.resource_id))

const url = `${baseUrl.replace(/\/+$/, '')}/developer/resource-customer${query.size > 0 ? `?${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(resourceCustomerResponse, await res.json())
};