import {z} from 'zod'

export type GetApiReportsTrialBalanceArgs = {from_date: string, to_date: string, subsidiary_id?: string | undefined, book_id?: (string | null) | undefined};

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

export const reportPeriod = z.object({from_date: z.string(), to_date: z.string()});

export const currencyCode = z.string();

export const roundedMonetaryAmount = z.object({amount: z.string(), currency: currencyCode});

export const reportAccountBalance = z.object({id: z.string(), code: z.string(), name: z.string(), beginning_balance: roundedMonetaryAmount, debit_total: roundedMonetaryAmount, credit_total: roundedMonetaryAmount, debit_fx_total: roundedMonetaryAmount.optional(), credit_fx_total: roundedMonetaryAmount.optional(), ending_balance: roundedMonetaryAmount});

export const reportTotals = z.object({beginning_balance: roundedMonetaryAmount, debit_total: roundedMonetaryAmount, credit_total: roundedMonetaryAmount, debit_fx_total: roundedMonetaryAmount.optional(), credit_fx_total: roundedMonetaryAmount.optional(), ending_balance: roundedMonetaryAmount});

export const trialBalanceReport = z.object({period: reportPeriod, currency: currencyCode, accounts: z.array(reportAccountBalance), totals: reportTotals});

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
};

/**
 * Retrieves trial balance report
 * 
 * GET /reports/trial-balance
 */
export const getApiReportsTrialBalance = async (args: GetApiReportsTrialBalanceArgs, options?: GetApiReportsTrialBalanceOptions) => {
const {baseUrl = "https://api.rillet.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/reports/trial-balance${query.size > 0 ? `?${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(trialBalanceReport, await res.json())
};