import {z} from 'zod'

export type PatchApiBillingTenantLocatorAccountBalancesLocatorHandleExcessFundsArgs = {tenantLocator: string, locator: unknown, currency?: string | undefined};

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

export const excludedDebit = z.object({entityLocator: z.string(), type: z.enum(["invoice", "installment"])});

export const excludedDebitsAmountResult = z.object({calculationType: z.enum(["none", "pastDueInvoices", "allInvoices", "invoicesAndUnbilledInstallments"]), entitiesUsedInCalculation: z.array(excludedDebit), currency: z.string(), amountToExclude: z.number()});

export const validationItemResponse = z.object({elementType: z.string(), locator: z.string(), errors: z.array(z.string())});

export const validationResult = z.object({validationItems: z.array(validationItemResponse).optional(), success: z.boolean()});

export const excessCreditCreateDisbursementResult = z.object({disbursementLocator: z.string(), disbursementState: z.enum(["draft", "validated", "approved", "executed", "reversed", "rejected", "discarded"]), disbursedAmount: z.number(), validationResult: validationResult.optional()});

export const accountExcessHandlingResult = z.object({accountLocator: z.string(), currency: z.string(), accountCreditBalance: z.number(), excludedDebitsAmountResult: excludedDebitsAmountResult, thresholdUsed: z.number().optional(), createDisbursementResult: excessCreditCreateDisbursementResult.optional(), errors: z.array(z.string())});

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
};

/**
 * PATCH /billing/{tenantLocator}/accountBalances/{locator}/handleExcessFunds
 */
export const patchApiBillingTenantLocatorAccountBalancesLocatorHandleExcessFunds = async (args: PatchApiBillingTenantLocatorAccountBalancesLocatorHandleExcessFundsArgs, options: PatchApiBillingTenantLocatorAccountBalancesLocatorHandleExcessFundsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.currency != null) query.append("currency", String(args.currency))

const url = `${baseUrl.replace(/\/+$/, '')}/billing/${encodeURIComponent(String(args.tenantLocator))}/accountBalances/${encodeURIComponent(String(args.locator))}/handleExcessFunds${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PATCH", headers})

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

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