import {z} from 'zod'

export type GetApiGatewayV1MarketPriceIndicatorArgs = {indicator: 'rsi' | 'macd' | 'ema' | 'sma' | 'bbands' | 'stoch' | 'adx' | 'atr' | 'cci' | 'obv' | 'vwap' | 'dmi' | 'ichimoku' | 'supertrend', symbol: string, interval?: ('1m' | '5m' | '15m' | '30m' | '1h' | '2h' | '4h' | '12h' | '1d' | '1w') | undefined, exchange?: ('binance' | 'bybit' | 'coinbase' | 'kraken') | undefined, from?: string | undefined, to?: string | undefined, options?: string | undefined};

export type GetApiGatewayV1MarketPriceIndicatorOptions = {baseUrl?: string | undefined, AccessToken?: string | undefined, fetch?: typeof fetch | undefined};

export const indicatorValues = z.object({bbands_lower: z.number().optional(), bbands_middle: z.number().optional(), bbands_upper: z.number().optional(), dmi_adx: z.number().optional(), dmi_mdi: z.number().optional(), dmi_pdi: z.number().optional(), ichimoku_base: z.number().optional(), ichimoku_conversion: z.number().optional(), ichimoku_current_span_a: z.number().optional(), ichimoku_current_span_b: z.number().optional(), ichimoku_lagging_span_a: z.number().optional(), ichimoku_lagging_span_b: z.number().optional(), ichimoku_span_a: z.number().optional(), ichimoku_span_b: z.number().optional(), macd_hist: z.number().optional(), macd_signal: z.number().optional(), macd_value: z.number().optional(), stoch_d: z.number().optional(), stoch_k: z.number().optional(), supertrend_advice: z.string().optional(), supertrend_value: z.number().optional()});

export const marketIndicatorItem = z.object({interval: z.string(), name: z.string(), project_id: z.string().optional(), symbol: z.string(), timestamp: z.number().int().optional(), updated_at: z.number().int().optional(), value: z.number(), values: indicatorValues.optional()});

export const offsetMeta = z.object({cached: z.boolean(), credits_used: z.number().int(), empty_reason: z.string().optional(), has_more: z.boolean().optional(), limit: z.number().int(), offset: z.number().int(), total: z.number().int().optional(), watermark: z.number().int().optional()});

export const dataResponseMarketIndicatorItem = z.object({$schema: z.string().optional(), data: z.array(marketIndicatorItem).nullable(), meta: offsetMeta});

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
};

/**
 * Technical Indicator
 * 
 * GET /gateway/v1/market/price-indicator
 */
export const getApiGatewayV1MarketPriceIndicator = async (args: GetApiGatewayV1MarketPriceIndicatorArgs, options?: GetApiGatewayV1MarketPriceIndicatorOptions) => {
const {baseUrl = "https://api.asksurf.ai", fetch: fetchFn = fetch, AccessToken} = options ?? {}

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

if (args.indicator != null) query.append("indicator", String(args.indicator))
if (args.symbol != null) query.append("symbol", String(args.symbol))
if (args.interval != null) query.append("interval", String(args.interval))
if (args.exchange != null) query.append("exchange", String(args.exchange))
if (args.from != null) query.append("from", String(args.from))
if (args.to != null) query.append("to", String(args.to))
if (args.options != null) query.append("options", String(args.options))
if (AccessToken !== undefined) headers.set('authorization', `Bearer ${AccessToken}`)

const url = `${baseUrl.replace(/\/+$/, '')}/gateway/v1/market/price-indicator${query.size > 0 ? `?${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(dataResponseMarketIndicatorItem, await res.json())
};