import {z} from 'zod'

export type GetApiTransactionsTransactionIdArgs = {transactionId: string, 'x-business-id': string};

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

export const transactionType = z.enum(["credit", "debit"]);

export const createdTransaction = z.object({timestamp: z.string(), amount: z.number(), currency: z.string().optional(), type: transactionType, id: z.string(), documentId: z.string().optional(), pending: z.boolean().optional(), contactId: z.string().optional()});

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 Transaction By Transaction Id
 * 
 * GET /transactions/{transactionId}
 * 
 * Also accepts auth: APIKeyHeader, AccessToken
 */
export const getApiTransactionsTransactionId = async (args: GetApiTransactionsTransactionIdArgs, options: GetApiTransactionsTransactionIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKey} = options ?? {}

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

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/${encodeURIComponent(String(args.transactionId))}${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(createdTransaction, await res.json())
};