import {z} from 'zod'

export type SettlementRequestBody = {mainExchangeAccountId?: string | undefined};

export type CreateApiOffExchangeSettlementsTraderArgs = {'Idempotency-Key'?: string | undefined, body: SettlementRequestBody};

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

export const toExchangeTransaction = z.object({assetId: z.string().optional(), amount: z.string().optional(), dstAddress: z.string().optional(), dstTag: z.string().optional()});

export const toCollateralTransaction = z.object({asset: z.string().optional(), amount: z.string().optional(), srcAddress: z.string().optional(), srcTag: z.string().optional(), fee: z.string().optional()});

export const exchangeSettlementTransactionsResponse = z.object({toExchange: z.array(toExchangeTransaction).optional(), toCollateral: z.array(toCollateralTransaction).optional()});

export const settlementResponse = z.object({id: z.string().optional(), initiator: z.string().optional(), exchangeReply: z.string().optional(), fireblocksInitiatedTransactions: z.object({}).optional(), exchangeRequestedTransactions: exchangeSettlementTransactionsResponse.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
};

/**
 * Create Settlement for a Trader
 * 
 * POST /off_exchange/settlements/trader
 */
export const createApiOffExchangeSettlementsTrader = async (args: CreateApiOffExchangeSettlementsTraderArgs, options?: CreateApiOffExchangeSettlementsTraderOptions) => {
const {baseUrl = "https://api.fireblocks.io/v1", fetch: fetchFn = fetch} = options ?? {}

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

if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))

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