import {z} from 'zod'

export type GetApiDeductionTemplateArgs = {companyID: string, deductionTemplateID?: string | undefined};

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

export const getApiDeductionTemplateResponse = z.object({success: z.boolean().optional(), data: z.array(z.object({companyID: z.string().optional(), deductionTemplateID: z.string().optional(), custom_name: z.string().optional(), deduction_type: z.string().optional(), employer_contribution: z.object({properties: z.object({contribution_type: z.object({const: z.string().optional()}).optional(), percentage_source: z.object({enum: z.array(z.string()).optional()}).optional(), matching: z.object({const: z.boolean().optional()}).optional(), value: z.object({type: z.string().optional(), default: z.number().int().optional()}).optional(), override_type: z.object({const: z.string().optional()}).optional()}).optional(), required: z.array(z.string()).optional()}).optional(), employee_contribution: z.object({properties: z.object({contribution_type: z.object({const: z.string().optional()}).optional(), value: z.object({type: z.string().optional(), default: z.number().int().optional()}).optional(), override_type: z.object({const: z.string().optional()}).optional()}).optional(), required: z.array(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
};

/**
 * Get Deduction Template
 * 
 * GET /deductionTemplate
 */
export const getApiDeductionTemplate = async (args: GetApiDeductionTemplateArgs, options?: GetApiDeductionTemplateOptions) => {
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.companyID != null) query.append("companyID", String(args.companyID))
if (args.deductionTemplateID != null) query.append("deductionTemplateID", String(args.deductionTemplateID))
if (sec0 !== undefined) headers.set("Authorization", sec0)

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