import {z} from 'zod'

export type SetBooksAPILedgerOpeningBalance = {balance: number, ledgerId: unknown};

export type SetBooksAPILedgerOpeningBalancesRequest = {openingBalances: Array<SetBooksAPILedgerOpeningBalance>};

export type UpdateApiBooksLedgersOpeningBalancesArgs = {booksId?: string | undefined, body: SetBooksAPILedgerOpeningBalancesRequest};

export type UpdateApiBooksLedgersOpeningBalancesOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const booksAPISetLedgerOpeningBalanceResult = z.object({error: z.object({code: z.enum(["invalidLedger", "missingParameters", "duplicateName", "duplicateSortCode", "invalidLedgerType", "invalidLedgerParent", "invalidLedgerReportCashFlow", "deletingRequiredLedger", "deletingLedgerWithActivity", "deletingLinkedLedger", "deletingParentLedger", "modifyingRequiredLedger", "integrationMapped", "mercuryAccountLedger", "unknownError"]), message: z.string()}).nullable().optional(), ledgerId: z.string(), success: z.boolean()});

export const setBooksAPILedgerOpeningBalancesResponse = z.object({results: z.array(booksAPISetLedgerOpeningBalanceResult)});

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
};

/**
 * Set or clear ledger opening balances
 * 
 * PUT /books/ledgers/opening-balances
 */
export const updateApiBooksLedgersOpeningBalances = async (args: UpdateApiBooksLedgersOpeningBalancesArgs, options?: UpdateApiBooksLedgersOpeningBalancesOptions) => {
const {baseUrl = "https://api.mercury.com/api/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.booksId != null) query.append("booksId", String(args.booksId))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/books/ledgers/opening-balances${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PUT", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(setBooksAPILedgerOpeningBalancesResponse, await res.json())
};