import {z} from 'zod'

export type GetApiApiV4PublicMarketsOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, PayloadAuth?: string | undefined, SignatureAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiApiV4PublicMarketsResponse = z.array(z.object({name: z.string(), stock: z.string(), money: z.string(), stockPrec: z.string(), moneyPrec: z.string(), feePrec: z.string(), makerFee: z.string(), takerFee: z.string(), minAmount: z.string(), minTotal: z.string(), maxTotal: z.string(), tradesEnabled: z.boolean(), isCollateral: z.boolean(), type: z.enum(["spot", "futures", "tradfiFutures"]), isTradFiFutures: z.boolean()}));

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
};

/**
 * Market Info
 * 
 * GET /api/v4/public/markets
 */
export const getApiApiV4PublicMarkets = async (options?: GetApiApiV4PublicMarketsOptions) => {
const {baseUrl = "https://whitebit.com", fetch: fetchFn = fetch, ApiKeyAuth, PayloadAuth, SignatureAuth} = options ?? {}

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

if (ApiKeyAuth !== undefined) headers.set("X-TXC-APIKEY", ApiKeyAuth)
if (PayloadAuth !== undefined) headers.set("X-TXC-PAYLOAD", PayloadAuth)
if (SignatureAuth !== undefined) headers.set("X-TXC-SIGNATURE", SignatureAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v4/public/markets${query.size > 0 ? `?${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(getApiApiV4PublicMarketsResponse, await res.json())
};