import {z} from 'zod'

export type GetApiLegalEntityOptions = {baseUrl: string, OAuth2PasswordBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const entityTypeEnum = z.enum(["unset", "c_corp", "p_corp", "llc", "llp", "lp", "gp"]);

export const taxClassEnum = z.enum(["unset", "corp", "s_corp", "partnership", "disregarded", "tax_exempt"]);

export const lLCManagedTypeEnum = z.enum(["member_managed", "manager_managed"]);

export const address = z.object({id: z.string().nullable().optional(), address_line_1: z.string(), address_line_2: z.string().nullable().optional(), city: z.string(), state: z.string(), country: z.string(), postal_code: z.string()});

export const accountingMethod = z.enum(["accrual", "cash"]);

export const accountingPeriod = z.enum(["fiscal", "calendar"]);

export const accountingYearEndMonthNumber = z.union([z.literal(1), z.literal(2), z.literal(3), z.literal(4), z.literal(5), z.literal(6), z.literal(7), z.literal(8), z.literal(9), z.literal(10), z.literal(11), z.literal(12)]);

export const accountLegalEntity = z.object({id: z.string(), name: z.string(), notices_url: z.string().nullable(), user_email: z.string().nullable(), business_name: z.string().nullable(), entity_type: entityTypeEnum.nullable(), tax_classification: taxClassEnum.nullable(), incorporation_location: z.string().nullable(), incorporation_date: z.string().nullable(), ein: z.string().nullable().optional(), llc_managed_type: lLCManagedTypeEnum.nullable().optional(), business_purpose: z.string().nullable().optional(), business_phone: z.string().nullable().optional(), business_email: z.string().nullable().optional(), business_address: address.nullable().optional(), mailing_address: address.nullable().optional(), naics_code: z.string().nullable().optional(), accounting_method: accountingMethod.nullable().optional(), accounting_period: accountingPeriod.nullable().optional(), accounting_year_end: accountingYearEndMonthNumber.nullable().optional(), futa_liability_year: z.string().nullable().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 Legal Entity
 * 
 * GET /legal_entity
 * 
 * Also accepts auth: OAuth2PasswordBearer
 */
export const getApiLegalEntity = async (options: GetApiLegalEntityOptions) => {
const {baseUrl, fetch: fetchFn = fetch, OAuth2PasswordBearer} = options ?? {}

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

if (OAuth2PasswordBearer !== undefined) headers.set('authorization', `Bearer ${OAuth2PasswordBearer}`)

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