import {z} from 'zod'

export type GetApiV2TransactionsArgs = {customer_id: string, type?: ('ONRAMP' | 'OFFRAMP' | 'CRYPTO_WITHDRAWAL' | 'CRYPTO_DEPOSIT') | undefined, current_page?: number | undefined, per_page?: number | undefined};

export type GetApiV2TransactionsOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV2TransactionsResponse = z.object({data: z.object({pagination: z.object({current_page: z.number().int().optional(), per_page: z.number().int().optional(), total_page: z.number().int().optional(), total: z.number().int().optional()}).optional(), transactions: z.array(z.object({id: z.string().optional(), transaction_type: z.enum(["ONRAMP", "OFFRAMP", "CRYPTO_WITHDRAWAL", "CRYPTO_DEPOSIT"]).optional(), customer_id: z.string().optional(), beneficiary_id: z.string().optional(), hash: z.string().optional(), status: z.string().optional(), source_currency: z.string().optional(), destination_currency: z.string().optional(), source_amount: z.number().optional(), destination_amount: z.number().optional(), total_fee: z.number().optional(), created_at: z.string().optional(), updated_at: z.string().optional()})).optional()}).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
};

/**
 * List Customer Transactions
 * 
 * GET /v2/transactions
 */
export const getApiV2Transactions = async (args: GetApiV2TransactionsArgs, options?: GetApiV2TransactionsOptions) => {
const {baseUrl = "https://sandbox.api.fin.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.customer_id != null) query.append("customer_id", String(args.customer_id))
if (args.type != null) query.append("type", String(args.type))
if (args.current_page != null) query.append("current_page", String(args.current_page))
if (args.per_page != null) query.append("per_page", String(args.per_page))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/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(getApiV2TransactionsResponse, await res.json())
};