import {z} from 'zod'

export type GetApiTransactionArgs = {id?: unknown | undefined, orderId?: unknown | undefined, hash?: unknown | undefined};

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

export const transactionResponse = z.object({id: z.string().optional(), ref: z.string().optional(), hash: z.string().optional(), amount: z.number().optional(), fees: z.number().optional(), currency: z.enum(["NGN", "KES", "BTC", "ZAR", "USDT"]).optional(), type: z.enum(["WITHDRAWAL", "DEPOSIT"]).optional(), status: z.enum(["SUCCESS", "PENDING", "FAILED"]).optional(), autopayout: z.boolean().optional(), createdAt: z.string().optional(), updatedAt: z.string().optional(), metadata: z.object({id: z.string().optional(), merchantId: z.string().optional(), merchantName: z.string().optional(), bankName: z.string().optional(), bankAccountNumber: z.string().optional(), reference: z.string().optional(), customerInternalFee: z.number().optional(), order: z.object({id: z.string().optional(), settledQuoteId: z.string().optional(), amount: z.number().optional(), currency: z.enum(["NGN", "KES", "ZAR"]).optional(), paymentMethod: z.literal("LIGHTNING").optional(), status: z.enum(["PAID", "PENDING", "EXPIRED", "FAILED"]).optional(), quote: z.object({id: z.string().optional(), exchangeRate: z.number().optional(), usdToTargetCurrencyRate: z.number().optional(), paymentBtcDetail: z.string().optional(), paymentMethod: z.literal("LIGHTNING").optional(), totalAmount: z.number().optional(), equivalentAmount: z.number().optional(), expiry: z.string().optional(), sourceCurrency: z.literal("BTCSAT").optional(), targetCurrency: z.enum(["NGNKOBO", "KESCENT", "ZARCENT"]).optional(), paymentCurrency: z.enum(["NGNKOBO", "KESCENT", "ZARCENT"]).optional(), customerInternalFee: z.number().optional()}).optional()}).optional()}).optional()});

export const getApiTransactionResponse = z.object({status: z.string().optional(), data: transactionResponse.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 details
 * 
 * GET /transaction
 * 
 * Also accepts auth: bearerAuth
 */
export const getApiTransaction = async (args: GetApiTransactionArgs, options?: GetApiTransactionOptions) => {
const {baseUrl = "https://staging.api.mavapay.co/api/v1", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (args.id != null) query.append("id", String(args.id))
if (args.orderId != null) query.append("orderId", String(args.orderId))
if (args.hash != null) query.append("hash", String(args.hash))
if (ApiKeyAuth !== undefined) headers.set("X-API-KEY", ApiKeyAuth)

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