import {z} from 'zod'

export type EmployeeStateTaxesRequest = {states: Array<{state: string, questions?: (Array<{key: string, answers?: (Array<{value: string | number | boolean | null, valid_from: string, valid_up_to?: (string | null) | undefined}>) | undefined}>) | undefined}>};

export type UpdateApiV1EmployeesEmployeeUuidStateTaxesArgs = {'X-Gusto-API-Version'?: '2026-06-15' | undefined, employee_uuid: string, body: EmployeeStateTaxesRequest};

export type UpdateApiV1EmployeesEmployeeUuidStateTaxesOptions = {baseUrl?: string | undefined, CompanyAccessAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const employeeStateTaxInputQuestionFormat = z.object({type: z.string(), options: z.array(z.object({value: z.union([z.string(), z.boolean(), z.number()]).optional(), label: z.string()})).optional()});

export const employeeStateTaxAnswer = z.object({value: z.union([z.string(), z.number(), z.boolean()]).nullable().optional(), valid_from: z.string().optional(), valid_up_to: z.string().nullable().optional()});

export const employeeStateTaxQuestion = z.object({label: z.string(), description: z.string().nullable(), key: z.string(), is_question_for_admin_only: z.boolean(), input_question_format: employeeStateTaxInputQuestionFormat, answers: z.array(employeeStateTaxAnswer)});

export const employeeStateTaxesList = z.array(z.object({uuid: z.string().optional(), employee_uuid: z.string().optional(), state: z.string().optional(), file_new_hire_report: z.boolean().nullable().optional(), is_work_state: z.boolean().optional(), questions: z.array(employeeStateTaxQuestion).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
};

/**
 * Update an employee's state taxes
 * 
 * PUT /v1/employees/{employee_uuid}/state_taxes
 */
export const updateApiV1EmployeesEmployeeUuidStateTaxes = async (args: UpdateApiV1EmployeesEmployeeUuidStateTaxesArgs, options?: UpdateApiV1EmployeesEmployeeUuidStateTaxesOptions) => {
const {baseUrl = "https://api.gusto-demo.com", fetch: fetchFn = fetch, CompanyAccessAuth} = options ?? {}

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

if (args['X-Gusto-API-Version'] != null) headers.set("X-Gusto-API-Version", String(args['X-Gusto-API-Version']))
if (CompanyAccessAuth !== undefined) headers.set('authorization', `Bearer ${CompanyAccessAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/employees/${encodeURIComponent(String(args.employee_uuid))}/state_taxes${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PUT", 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(employeeStateTaxesList, await res.json())
};