import {z} from 'zod'

export type CreateApiPreviewCheckDataArgs = {body: {companyID: string, employeeID: string, reportingPeriodID: string, check_date: string, approval_required?: boolean | undefined, metadata?: Record<string, never> | undefined, deductions?: ({employer_contribution?: ({value?: number | undefined, contribution_type?: string | undefined}) | undefined, employee_contribution?: ({override_type?: string | undefined, contribution_type?: string | undefined, value?: number | undefined}) | undefined, deductionTemplateID: string}) | undefined, shifts: Array<{time: string, hourly?: ({hours: number, wage?: number | undefined, custom_name?: string | undefined}) | undefined}>, flsa_ot_recommendation?: boolean | undefined}};

export type CreateApiPreviewCheckDataOptions = {baseUrl?: string | undefined, sec0?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiPreviewCheckDataResponse = z.object({success: z.boolean().optional(), data: z.object({success: z.boolean().optional(), result: z.object({checks: z.array(z.object({gross_pay: z.string().optional(), net_pay: z.string().optional(), employer_taxes: z.string().optional(), employee_taxes: z.string().optional(), employee_deductions: z.string().optional(), employer_deductions: z.string().optional(), taxes: z.array(z.object({name: z.string().optional(), codename: z.string().optional(), amount: z.string().optional(), paidBy: z.string().optional()})).optional(), deductions: z.array(z.object({deduction_type: z.string().optional(), employee_calculated_contribution: z.string().optional(), employer_calculated_contribution: z.string().optional()})).optional()})).optional(), total_employer_taxes: z.string().optional(), total_employee_taxes: z.string().optional(), total_employee_deductions: z.string().optional(), total_employer_deductions: z.string().optional()}).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
};

/**
 * Preview Check Data
 * 
 * POST /preview/checkData
 */
export const createApiPreviewCheckData = async (args: CreateApiPreviewCheckDataArgs, options?: CreateApiPreviewCheckDataOptions) => {
const {baseUrl = "https://api.zeal.com", fetch: fetchFn = fetch, sec0} = options ?? {}

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

if (sec0 !== undefined) headers.set("Authorization", sec0)

const url = `${baseUrl.replace(/\/+$/, '')}/preview/checkData${query.size > 0 ? `?${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(createApiPreviewCheckDataResponse, await res.json())
};