import {z} from 'zod'

export type GetApiApiV1MeTaxFilingsArgs = {subject?: ('personal' | string) | undefined, type?: ('income' | 'vat') | undefined, year?: number | undefined, limit?: number | undefined, cursor?: string | undefined};

export type GetApiApiV1MeTaxFilingsOptions = {baseUrl?: string | undefined, oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const taxSubject = z.object({type: z.enum(["natural_person", "legal_entity"]), id: z.string(), name: z.string(), residentPermitNumber: z.string().nullable()});

export const taxFiling = z.object({id: z.string(), subject: taxSubject, type: z.enum(["income", "vat"]), period: z.object({year: z.number().int(), quarter: z.number().int().gte(1).lte(4).nullable()}), submittedAt: z.string(), amended: z.boolean(), currency: z.enum(["usd", "btc"]), accountingMethod: z.string().nullable(), reported: z.object({grossIncome: z.string().nullable(), taxCredit: z.string().nullable(), taxWithheld: z.string().nullable()}), usdEquivalent: z.object({grossIncome: z.string().nullable(), taxCredit: z.string().nullable(), taxWithheld: z.string().nullable()}).nullable(), taxLiability: z.string().nullable(), exchangeRate: z.object({btcUsdRate: z.string().nullable(), capturedAt: z.string().nullable(), source: z.string().nullable()}).nullable(), invoice: z.object({id: z.string(), status: z.string()}).nullable(), availableDocuments: z.array(z.enum(["assessment", "return"]))});

export const getApiApiV1MeTaxFilingsResponse = z.object({data: z.array(taxFiling), meta: z.object({nextCursor: z.string().nullable()})});

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
};

/**
 * List submitted tax filings
 * 
 * GET /api/v1/me/tax/filings
 * 
 * Also accepts auth: oauth2
 */
export const getApiApiV1MeTaxFilings = async (args: GetApiApiV1MeTaxFilingsArgs, options?: GetApiApiV1MeTaxFilingsOptions) => {
const {baseUrl = "https://portal.eprospera.com", fetch: fetchFn = fetch, oauth2} = options ?? {}

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

if (args.subject != null) query.append("subject", String(args.subject))
if (args.type != null) query.append("type", String(args.type))
if (args.year != null) query.append("year", String(args.year))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (oauth2 !== undefined) headers.set('authorization', `Bearer ${oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/me/tax/filings${query.size > 0 ? `?${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(getApiApiV1MeTaxFilingsResponse, await res.json())
};