import {z} from 'zod'

export type TaxFormType = 'Tax1099Int' | 'Tax1099Div' | 'Tax1099B' | 'Tax1099';

export type GetApiTaxFormsArgs = {account_id?: (string | null) | undefined, tax_year?: (number | null) | undefined, tax_forms?: (Array<TaxFormType> | null) | undefined, 'x-entity-id'?: string | undefined};

export type GetApiTaxFormsOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const taxFormType = z.enum(["Tax1099Int", "Tax1099Div", "Tax1099B", "Tax1099"]);

export const taxFormDescriptor = z.object({tax_form_id: z.string(), tax_year: z.number().int(), tax_form_type: taxFormType});

export const taxFormList = z.object({tax_forms: z.array(taxFormDescriptor)});

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
};

/**
 * Search Tax Forms
 * 
 * GET /tax-forms
 */
export const getApiTaxForms = async (args: GetApiTaxFormsArgs, options?: GetApiTaxFormsOptions) => {
const {baseUrl = "https://api.meow.com/v1", fetch: fetchFn = fetch, apiKeyAuth} = options ?? {}

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

if (args.account_id != null) query.append("account_id", String(args.account_id))
if (args.tax_year != null) query.append("tax_year", String(args.tax_year))
for (const item of args.tax_forms ?? []) query.append("tax_forms", String(item))
if (args['x-entity-id'] != null) headers.set("x-entity-id", String(args['x-entity-id']))
if (apiKeyAuth !== undefined) headers.set("x-api-key", apiKeyAuth)

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