import {z} from 'zod'

export type TransactionType = 'credit' | 'debit';

export type GetApiTransactionsArgs = {verbose?: boolean | undefined, document_id?: string | undefined, credit?: boolean | undefined, debit?: boolean | undefined, type?: TransactionType | undefined, 'x-business-id': string};

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

export const getApiTransactionsResponse = z.unknown();

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 All Transactions
 * 
 * GET /transactions
 * 
 * Also accepts auth: APIKeyHeader, AccessToken
 */
export const getApiTransactions = async (args: GetApiTransactionsArgs, options: GetApiTransactionsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKey} = options ?? {}

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

if (args.verbose != null) query.append("verbose", String(args.verbose))
if (args.document_id != null) query.append("document_id", String(args.document_id))
if (args.credit != null) query.append("credit", String(args.credit))
if (args.debit != null) query.append("debit", String(args.debit))
if (args.type != null) query.append("type", String(args.type))
if (args['x-business-id'] != null) headers.set("x-business-id", String(args['x-business-id']))
if (APIKey !== undefined) headers.set("api-key", APIKey)

const url = `${baseUrl.replace(/\/+$/, '')}/transactions${query.size > 0 ? `?${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(getApiTransactionsResponse, await res.json())
};