import {z} from 'zod'

export type CreateApiTransactionsTransactionIdApproveArgs = {transactionId: string, body: {receiverUserInfo?: {[key: string]: unknown} | undefined}};

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

export const transactionStatus = z.enum(["CREATED", "PENDING", "PROCESSING", "COMPLETED", "REJECTED", "FAILED", "REFUNDED", "EXPIRED"]);

export const transactionType = z.enum(["INCOMING", "OUTGOING"]);

export const currency = z.object({code: z.string().optional(), name: z.string().optional(), symbol: z.string().optional(), decimals: z.number().int().gte(0).optional()});

export const currencyAmount = z.object({amount: z.number().int(), currency: currency});

export const reconciliationInstructions = z.object({reference: z.string()});

export const incomingRateDetails = z.object({umaaasMultiplier: z.number().gt(0), umaaasFixedFee: z.number().int().gte(0), umaaasVariableFeeRate: z.number().gte(0), umaaasVariableFeeAmount: z.number().gte(0)});

export const incomingTransactionFailureReason = z.enum(["LNURLP_FAILED", "PAY_REQUEST_FAILED", "PAYMENT_APPROVAL_WEBHOOK_ERROR", "PAYMENT_APPROVAL_TIMED_OUT", "OFFRAMP_FAILED", "MISSING_MANDATORY_PAYEE_DATA", "QUOTE_EXPIRED", "QUOTE_EXECUTION_FAILED"]);

export const incomingTransaction = z.object({id: z.string(), status: transactionStatus, type: transactionType, senderUmaAddress: z.string(), receiverUmaAddress: z.string(), userId: z.string(), platformUserId: z.string(), settledAt: z.string().optional(), createdAt: z.string().optional(), description: z.string().optional(), counterpartyInformation: z.record(z.string(), z.unknown()).optional(), receivedAmount: currencyAmount, reconciliationInstructions: reconciliationInstructions.optional(), rateDetails: incomingRateDetails.optional(), failureReason: incomingTransactionFailureReason.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
};

/**
 * Approve a pending incoming payment
 * 
 * POST /transactions/{transactionId}/approve
 */
export const createApiTransactionsTransactionIdApprove = async (args: CreateApiTransactionsTransactionIdApproveArgs, options?: CreateApiTransactionsTransactionIdApproveOptions) => {
const {baseUrl = "https://api.uma.money/umaaas/2025-05-15", fetch: fetchFn = fetch, BasicAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/transactions/${encodeURIComponent(String(args.transactionId))}/approve${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(incomingTransaction, await res.json())
};