import {z} from 'zod'

export type GetApiV1DarkPoolTradesArgs = {tickers?: string | undefined, date?: string | undefined, date_start?: string | undefined, date_end?: string | undefined, time_start?: string | undefined, time_end?: string | undefined, min_notional?: number | undefined, max_notional?: number | undefined, min_size?: number | undefined, max_size?: number | undefined, min_price?: number | undefined, max_price?: number | undefined, sectors?: string | undefined, industries?: string | undefined, venue?: ('FINN' | 'FINC') | undefined, limit?: number | undefined, offset?: number | undefined, order?: ('asc' | 'desc') | undefined};

export type GetApiV1DarkPoolTradesOptions = {baseUrl?: string | undefined, bearerApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const darkPoolPrint = z.object({timestamp: z.string(), ticker: z.string(), price: z.number(), size: z.number().int().gte(0), notional: z.number(), venue: z.enum(["FINN", "FINC"]), sector: z.string(), industry: z.string()});

export const darkPoolTradesMeta = z.object({timestamp: z.string(), requestId: z.string(), limit: z.number().int(), offset: z.number().int(), count: z.number().int(), hasMore: z.boolean()});

export const darkPoolTradesSuccess = z.object({data: z.array(darkPoolPrint), meta: darkPoolTradesMeta});

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
};

/**
 * Paginated off-exchange (TRF) prints
 * 
 * GET /v1/dark-pool/trades
 */
export const getApiV1DarkPoolTrades = async (args: GetApiV1DarkPoolTradesArgs, options?: GetApiV1DarkPoolTradesOptions) => {
const {baseUrl = "https://flow-api.skylit.ai", fetch: fetchFn = fetch, bearerApiKey} = options ?? {}

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

if (args.tickers != null) query.append("tickers", String(args.tickers))
if (args.date != null) query.append("date", String(args.date))
if (args.date_start != null) query.append("date_start", String(args.date_start))
if (args.date_end != null) query.append("date_end", String(args.date_end))
if (args.time_start != null) query.append("time_start", String(args.time_start))
if (args.time_end != null) query.append("time_end", String(args.time_end))
if (args.min_notional != null) query.append("min_notional", String(args.min_notional))
if (args.max_notional != null) query.append("max_notional", String(args.max_notional))
if (args.min_size != null) query.append("min_size", String(args.min_size))
if (args.max_size != null) query.append("max_size", String(args.max_size))
if (args.min_price != null) query.append("min_price", String(args.min_price))
if (args.max_price != null) query.append("max_price", String(args.max_price))
if (args.sectors != null) query.append("sectors", String(args.sectors))
if (args.industries != null) query.append("industries", String(args.industries))
if (args.venue != null) query.append("venue", String(args.venue))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.order != null) query.append("order", String(args.order))
if (bearerApiKey !== undefined) headers.set('authorization', `Bearer ${bearerApiKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/dark-pool/trades${query.size > 0 ? `?${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(darkPoolTradesSuccess, await res.json())
};