import {z} from 'zod'

export type Currency = 'BTC' | 'ETH' | 'USDC' | 'USDT' | 'EURR';

export type KindWithComboAll = 'future' | 'option' | 'spot' | 'future_combo' | 'option_combo' | 'combo' | 'any';

export type Timestamp = number;

export type Sorting = 'asc' | 'desc' | 'default';

export type GetApiPublicGetLastTradesByCurrencyAndTimeArgs = {currency: Currency, kind?: KindWithComboAll | undefined, start_timestamp?: Timestamp | undefined, end_timestamp?: Timestamp | undefined, count?: number | undefined, sorting?: Sorting | undefined};

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

export const tradeId = z.string();

export const tradeSeq = z.number().int();

export const instrumentName = z.string();

export const tradeTimestamp = z.number().int();

export const starbaseTimestamp = z.number().int();

export const direction = z.enum(["buy", "sell"]);

export const tickDirection = z.union([z.literal(0), z.literal(1), z.literal(2), z.literal(3)]);

export const price = z.number();

export const blockTradeIdInResult = z.string();

export const blockTradeLegCount = z.number().int();

export const blockDelayed = z.number().int();

export const publicTrade: z.ZodType<PublicTrade> = z.object({trade_id: tradeId, trade_seq: tradeSeq, instrument_name: instrumentName, timestamp: tradeTimestamp, starbase_timestamp: starbaseTimestamp.optional(), direction: direction, tick_direction: tickDirection, index_price: z.number(), price: price, amount: z.number(), contracts: z.number().optional(), iv: z.number().optional(), liquidation: z.enum(["M", "T", "MT"]).optional(), mark_price: z.number().nullable(), block_trade_id: blockTradeIdInResult.optional(), block_trade_leg_count: blockTradeLegCount.optional(), block_delayed: blockDelayed.optional(), combo_id: z.string().optional(), combo_trade_id: z.string().optional(), starbase_match_id: z.number().int().optional(), block_rfq_id: z.number().int().optional(), legs: z.array(z.lazy(() => publicTrade)).optional()});

export const publicTradesHistoryResponse = z.object({jsonrpc: z.literal("2.0"), id: z.number().int().optional(), result: z.object({trades: z.array(publicTrade), has_more: 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
};

/**
 * Retrieves the latest trades that have occurred for instruments in a specific currency within a specified time range. Returns trade details including price, amount, direction, timestamp, and trade ID.
 * 
 * GET /public/get_last_trades_by_currency_and_time
 */
export const getApiPublicGetLastTradesByCurrencyAndTime = async (args: GetApiPublicGetLastTradesByCurrencyAndTimeArgs, options?: GetApiPublicGetLastTradesByCurrencyAndTimeOptions) => {
const {baseUrl = "https://test.deribit.com/api/v2", 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.currency != null) query.append("currency", String(args.currency))
if (args.kind != null) query.append("kind", String(args.kind))
if (args.start_timestamp != null) query.append("start_timestamp", String(args.start_timestamp))
if (args.end_timestamp != null) query.append("end_timestamp", String(args.end_timestamp))
if (args.count != null) query.append("count", String(args.count))
if (args.sorting != null) query.append("sorting", String(args.sorting))

const url = `${baseUrl.replace(/\/+$/, '')}/public/get_last_trades_by_currency_and_time${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", 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(publicTradesHistoryResponse, await res.json())
};