import {z} from 'zod'

export type GetApiSessionsTransactionIdAccountSnapshotArgs = {'transaction-id': string};

export type GetApiSessionsTransactionIdAccountSnapshotOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const countryId = z.enum(["DE", "AT", "CH"]);

export const currencyId = z.enum(["EUR", "CHF"]);

export const turnover = z.object({booking_date: z.string().optional(), amount: z.number().optional(), currency_id: currencyId.optional(), purpose: z.array(z.string()).optional(), counter_iban: z.string().optional(), counter_bic: z.string().optional(), counter_holder: z.string().optional(), prebooked: z.boolean().optional(), canceled: z.boolean().optional(), tags: z.array(z.string()).optional(), category_id: z.string().optional(), creditor_id: z.string().optional(), new: z.boolean().optional(), transaction_id: z.string().optional(), booking_text: z.string().optional(), purpose_code: z.string().optional(), reason_code: z.string().optional(), mandate_id: z.string().optional(), endToEnd_id: z.string().optional(), bank_transaction_code: z.string().optional(), swift_transaction_code: z.string().optional()});

export const accountStatement = z.object({account: z.object({holder: z.string().optional(), description: z.string().optional(), iban: z.string().optional(), bic: z.string().optional(), country_id: countryId.optional(), joint_account: z.boolean().optional()}).optional(), balance: z.object({available: z.number().nullable().optional(), limit: z.number().nullable().optional(), balance: z.number().optional(), currency: currencyId.optional(), date: z.string().optional()}).optional(), turnovers: z.object({turnovers: z.array(turnover).optional(), date: z.string().optional(), days: z.number().int().optional(), filters: z.array(z.string()).optional()}).optional()});

export const accountSnapshotJSON2 = z.array(accountStatement);

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
};

/**
 * Get account snapshot of a session in intermission.
 * 
 * GET /sessions/{transaction-id}/accountSnapshot
 */
export const getApiSessionsTransactionIdAccountSnapshot = async (args: GetApiSessionsTransactionIdAccountSnapshotArgs, options?: GetApiSessionsTransactionIdAccountSnapshotOptions) => {
const {baseUrl = "https://api.xs2a.com/v1", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/sessions/${encodeURIComponent(String(args['transaction-id']))}/accountSnapshot${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(accountSnapshotJSON2, await res.json())
};