import {z} from 'zod'

export type GetApiSwapsSwapIdArgs = {swapId: string, 'X-Hevn-Account'?: (string | null) | undefined};

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

export const swapState = z.enum(["awaitingSignature", "submitted", "settled", "failed"]);

export const accountKey = z.enum(["USDC", "EURC", "RD", "USDC_ARB", "FDIC_USD", "FDIC_EUR", "KYC_CARDS"]);

export const swapQuoteView = z.object({fromAmount: z.string(), fromCurrency: z.string(), toAmount: z.string(), toCurrency: z.string(), rate: z.string(), feeAmount: z.string(), feeCurrency: z.string(), minimumToAmount: z.string().nullable().optional(), estimated: z.boolean().optional(), etaHours: z.number().int().nullable().optional(), expiresAt: z.string().nullable().optional()});

export const swapFailureView = z.object({code: z.string()});

export const swapReadResponse = z.object({id: z.string(), status: swapState, sourceAccount: accountKey.nullable().optional(), destinationAccount: accountKey.nullable().optional(), quote: swapQuoteView.nullable().optional(), transactionHash: z.string().nullable().optional(), transactionId: z.string().nullable().optional(), createdAt: z.string(), settledAt: z.string().nullable().optional(), failure: swapFailureView.nullable().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
};

/**
 * Retrieve a transfer between the client's own accounts
 * 
 * GET /swaps/{swapId}
 */
export const getApiSwapsSwapId = async (args: GetApiSwapsSwapIdArgs, options: GetApiSwapsSwapIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args['X-Hevn-Account'] != null) headers.set("X-Hevn-Account", String(args['X-Hevn-Account']))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/swaps/${encodeURIComponent(String(args.swapId))}${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(swapReadResponse, await res.json())
};