import {z} from 'zod'

export type ExternalPayrollUpdateRequest = {replace_fields?: boolean | undefined, external_payroll_items: Array<{employee_uuid: string, earnings?: (Array<{earning_type?: ('CompanyPayType' | 'CompanyEarningType') | undefined, earning_id?: number | undefined, amount?: unknown | undefined, hours?: unknown | undefined}>) | undefined, benefits?: (Array<{benefit_id?: number | undefined, company_contribution_amount?: unknown | undefined, employee_deduction_amount?: unknown | undefined}>) | undefined, taxes?: (Array<{tax_id?: number | undefined, amount?: unknown | undefined}>) | undefined}>};

export type UpdateApiV1CompaniesCompanyUuidExternalPayrollsExternalPayrollIdArgs = {'X-Gusto-API-Version'?: '2026-06-15' | undefined, company_uuid: string, external_payroll_id: string, body: ExternalPayrollUpdateRequest};

export type UpdateApiV1CompaniesCompanyUuidExternalPayrollsExternalPayrollIdOptions = {baseUrl?: string | undefined, CompanyAccessAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const externalPayroll = z.object({uuid: z.string(), company_uuid: z.string().optional(), check_date: z.string().optional(), payment_period_start_date: z.string().optional(), payment_period_end_date: z.string().optional(), status: z.enum(["unprocessed", "processed"]).optional(), external_payroll_items: z.array(z.object({employee_uuid: z.string().optional(), earnings: z.array(z.object({amount: z.string().optional(), hours: z.string().optional(), earning_type: z.string().optional(), earning_id: z.number().int().optional()})).optional(), benefits: z.array(z.object({benefit_id: z.number().int().optional(), company_contribution_amount: z.string().optional(), employee_deduction_amount: z.string().optional()})).optional(), taxes: z.array(z.object({tax_id: z.number().int().optional(), amount: z.string().optional()})).optional()})).optional(), applicable_earnings: z.array(z.object({earning_type: z.string().optional(), earning_id: z.number().optional(), name: z.string().optional(), input_type: z.string().optional(), category: z.string().optional()})).optional(), applicable_benefits: z.array(z.object({id: z.number().int().optional(), description: z.string().optional(), active: z.boolean().optional()})).nullable().optional(), applicable_taxes: z.array(z.object({id: z.number().int().optional(), name: z.string().optional(), employer_tax: z.boolean().optional(), resident_tax: z.boolean().optional()})).optional(), metadata: z.object({deletable: z.boolean().optional()}).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 external payroll
 * 
 * PUT /v1/companies/{company_uuid}/external_payrolls/{external_payroll_id}
 */
export const updateApiV1CompaniesCompanyUuidExternalPayrollsExternalPayrollId = async (args: UpdateApiV1CompaniesCompanyUuidExternalPayrollsExternalPayrollIdArgs, options?: UpdateApiV1CompaniesCompanyUuidExternalPayrollsExternalPayrollIdOptions) => {
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/companies/${encodeURIComponent(String(args.company_uuid))}/external_payrolls/${encodeURIComponent(String(args.external_payroll_id))}${query.size > 0 ? `?${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(externalPayroll, await res.json())
};