import {z} from 'zod'

export type GetApiV1CongressMarketActivityArgs = {days?: number | undefined, direction?: string | undefined, chamber?: string | undefined, limit?: number | undefined};

export type GetApiV1CongressMarketActivityOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const congressionalActivityDto = z.object({ticker: z.string().nullable().optional(), distinctBuyers: z.number().int().optional(), distinctSellers: z.number().int().optional(), buyTrades: z.number().int().optional(), sellTrades: z.number().int().optional(), estimatedBuyFlowUsd: z.number().optional(), estimatedSellFlowUsd: z.number().optional(), estimatedNetFlowUsd: z.number().optional(), topBuyers: z.array(z.string()).nullable().optional(), topSellers: z.array(z.string()).nullable().optional(), latestFilingDate: z.string().optional(), latestTransactionDate: z.string().optional()});

export const congressionalActivityResponse = z.object({windowDays: z.number().int().optional(), direction: z.string().nullable().optional(), chamber: z.string().nullable().optional(), data: z.array(congressionalActivityDto).nullable().optional(), total: z.number().int().nullable().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
};

/**
 * Market-wide congressional trading activity: per-stock aggregates of every trade disclosed in the trailing window across all members and tickers, ranked by estimated net flow. Flows are estimates — each trade counts as the midpoint of its disclosed amount range. The window is anchored on the disclosure (filing) date because STOCK Act filings lag the trade by up to ~45 days.
 * 
 * GET /v1/congress/market-activity
 */
export const getApiV1CongressMarketActivity = async (args: GetApiV1CongressMarketActivityArgs, options?: GetApiV1CongressMarketActivityOptions) => {
const {baseUrl = "https://api.equibles.com", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args.days != null) query.append("days", String(args.days))
if (args.direction != null) query.append("direction", String(args.direction))
if (args.chamber != null) query.append("chamber", String(args.chamber))
if (args.limit != null) query.append("limit", String(args.limit))
if (ApiKey !== undefined) headers.set('authorization', `Bearer ${ApiKey}`)

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