import {z} from 'zod'

export type VolumeForPriceRequest = {connector_name: string, trading_pair: string, is_buy: boolean, price: number};

export type CreateApiMarketDataOrderBookVolumeForPriceArgs = {body: VolumeForPriceRequest};

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

export const orderBookQueryResult = z.object({trading_pair: z.string(), is_buy: z.boolean(), query_volume: z.number().nullable().optional(), query_price: z.number().nullable().optional(), result_price: z.number().nullable().optional(), result_volume: z.number().nullable().optional(), result_quote_volume: z.number().nullable().optional(), average_price: z.number().nullable().optional(), timestamp: z.number()});

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 Volume For Price
 * 
 * POST /market-data/order-book/volume-for-price
 */
export const createApiMarketDataOrderBookVolumeForPrice = async (args: CreateApiMarketDataOrderBookVolumeForPriceArgs, options?: CreateApiMarketDataOrderBookVolumeForPriceOptions) => {
const {baseUrl = "http://localhost:8000", fetch: fetchFn = fetch, HTTPBasic} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/market-data/order-book/volume-for-price${query.size > 0 ? `?${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(orderBookQueryResult, await res.json())
};