import {z} from 'zod'

export type IntervalEnum = '1min' | '5min' | '15min' | '1hour' | '4hour' | '12hour' | '1day';

export type RangeEnum = '1day' | '1month' | '3month' | '6month' | '1year' | 'all';

export type GetApiV1AssetsSymbolPricesOhlcArgs = {symbol: string, interval: IntervalEnum, range: RangeEnum};

export type GetApiV1AssetsSymbolPricesOhlcOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const intervalEnum = z.enum(["1min", "5min", "15min", "1hour", "4hour", "12hour", "1day"]);

export const rangeEnum = z.enum(["1day", "1month", "3month", "6month", "1year", "all"]);

export const oHLCDataPoint = z.object({timestamp: z.number(), open: z.string(), high: z.string(), low: z.string(), close: z.string()});

export const oHLCResponse = z.object({interval: intervalEnum, range: rangeEnum, primaryMarket: z.object({symbol: z.string().optional(), data: z.array(oHLCDataPoint).optional()}), underlyingMarket: z.object({ticker: z.string().optional(), data: z.array(oHLCDataPoint).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
};

/**
 * Get OHLC (Open, High, Low, Close) Data for an Asset
 * 
 * GET /v1/assets/{symbol}/prices/ohlc
 */
export const getApiV1AssetsSymbolPricesOhlc = async (args: GetApiV1AssetsSymbolPricesOhlcArgs, options?: GetApiV1AssetsSymbolPricesOhlcOptions) => {
const {baseUrl = "https://api.gm.ondo.finance", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.interval != null) query.append("interval", String(args.interval))
if (args.range != null) query.append("range", String(args.range))
if (apiKey !== undefined) headers.set("x-api-key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/assets/${encodeURIComponent(String(args.symbol))}/prices/ohlc${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(oHLCResponse, await res.json())
};