import {z} from 'zod'

export type GetApiApiV2CustomObjectsCustomObjectKeyFieldsArgs = {'page[before]'?: string | undefined, 'page[after]'?: string | undefined, 'page[size]'?: number | undefined, custom_object_key: string, include_standard_fields?: boolean | undefined};

export type GetApiApiV2CustomObjectsCustomObjectKeyFieldsOptions = {baseUrl?: string | undefined, apiTokenAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const customFieldOptionObject = z.object({id: z.number().int().optional(), name: z.string(), position: z.number().int().optional(), raw_name: z.string().optional(), url: z.string().optional(), value: z.string()});

export const customObjectField = z.object({active: z.boolean().optional(), created_at: z.string().optional(), custom_field_options: z.array(customFieldOptionObject).optional(), description: z.string().optional(), id: z.number().int().optional(), key: z.string(), position: z.number().int().optional(), raw_description: z.string().optional(), raw_title: z.string().optional(), regexp_for_validation: z.string().nullable().optional(), relationship_filter: z.object({}).optional(), relationship_target_type: z.string().optional(), system: z.boolean().optional(), tag: z.string().optional(), title: z.string(), type: z.string(), updated_at: z.string().optional(), url: z.string().optional()});

export const customObjectFieldsResponse = z.object({custom_object_fields: z.array(customObjectField).optional()});

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
};

/**
 * List Custom Object Fields
 * 
 * GET /api/v2/custom_objects/{custom_object_key}/fields
 */
export const getApiApiV2CustomObjectsCustomObjectKeyFields = async (args: GetApiApiV2CustomObjectsCustomObjectKeyFieldsArgs, options?: GetApiApiV2CustomObjectsCustomObjectKeyFieldsOptions) => {
const {baseUrl = "https://example.zendesk.com", fetch: fetchFn = fetch, apiTokenAuth} = options ?? {}

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

if (args['page[before]'] != null) query.append("page[before]", String(args['page[before]']))
if (args['page[after]'] != null) query.append("page[after]", String(args['page[after]']))
if (args['page[size]'] != null) query.append("page[size]", String(args['page[size]']))
if (args.include_standard_fields != null) query.append("include_standard_fields", String(args.include_standard_fields))
if (apiTokenAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${apiTokenAuth.username}:${apiTokenAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/custom_objects/${encodeURIComponent(String(args.custom_object_key))}/fields${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(customObjectFieldsResponse, await res.json())
};