import {z} from 'zod'

export type GetApiPreviewArgs = {job_id: string};

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

export const getApiPreviewResponse = z.object({status: z.number().int().optional(), success: z.boolean().optional(), data: z.object({job_id: z.string().optional(), status: z.string().optional(), code: z.number().int().optional(), created_at: z.string().optional(), request_body: z.object({checks: z.array(z.string()).optional(), companyID: z.string().optional(), test_mode: z.boolean().optional(), job_type: z.string().optional(), has_live_key: z.unknown()}).optional(), payload: z.object({success: z.boolean().optional(), result: z.object({checks: z.array(z.object({employeeCheckID: z.string().optional(), 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(), flsa_ot_transformed: z.boolean().optional()})).optional(), total_flsa_transformed: z.number().int().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()}).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
};

/**
 * Get Preview
 * 
 * GET /preview
 */
export const getApiPreview = async (args: GetApiPreviewArgs, options?: GetApiPreviewOptions) => {
const {baseUrl = "https://api.zeal.com", fetch: fetchFn = fetch, sec0} = options ?? {}

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

if (args.job_id != null) query.append("job_id", String(args.job_id))
if (sec0 !== undefined) headers.set("Authorization", sec0)

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