import {z} from 'zod'

export type GetApiBooksLedgerBalancesArgs = {ledgerIds: Array<unknown>, startDate: string, endDate: string, booksId?: string | undefined};

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

export const booksAPILedgerBalance = z.object({closingBalance: z.number(), debitCredit: z.enum(["debit", "credit"]), ledgerId: z.string(), name: z.string(), netActivity: z.number(), openingBalance: z.number(), specialType: z.enum(["uncatInflow", "uncatOutflow", "accountTransfers", "openingBalances", "accountsReceivable", "accountsPayable", "wagesExpense", "bonusExpense", "commissionsExpense", "contractorExpense", "employeeReimbursements", "severanceExpense", "payrollTaxExpense", "employerBenefitsExpense", "healthInsuranceExpense", "wagesPayable", "payrollTaxPayable", "employeeBenefitLiabilities", "payrollLiabilities", "payrollAdjustmentsClearing", "retainedEarnings", "currentYearEarnings", "benefitsExpense", "donationsExpense", "benefitsPayable", "payrollTaxAccruals", "stockExerciseClearing", "payrollClearing"]).nullable().optional(), subType: z.enum(["currentAssets", "nonCurrentAssets", "transfersBetweenAccounts", "uncategorizedAssets", "currentLiabilities", "nonCurrentLiabilities", "equity", "operatingRevenues", "otherIncome", "costOfGoodsSold", "operatingExpenses", "otherExpenses", "retainedEarnings"]), type: z.enum(["asset", "liability", "equity", "revenue", "expense"])});

export const getBooksAPILedgerBalancesResponse = z.object({ledgerBalances: z.array(booksAPILedgerBalance)});

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
};

/**
 * Retrieve ledger balances over a date range
 * 
 * GET /books/ledger-balances
 */
export const getApiBooksLedgerBalances = async (args: GetApiBooksLedgerBalancesArgs, options?: GetApiBooksLedgerBalancesOptions) => {
const {baseUrl = "https://api.mercury.com/api/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

for (const item of args.ledgerIds ?? []) query.append("ledgerIds", String(item))
if (args.startDate != null) query.append("startDate", String(args.startDate))
if (args.endDate != null) query.append("endDate", String(args.endDate))
if (args.booksId != null) query.append("booksId", String(args.booksId))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/books/ledger-balances${query.size > 0 ? `?${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(getBooksAPILedgerBalancesResponse, await res.json())
};