import {z} from 'zod'

export type GetApiV1StocksTickerOptionsExpirationsArgs = {ticker: string, expired?: boolean | undefined, startDate?: string | undefined, endDate?: string | undefined};

export type GetApiV1StocksTickerOptionsExpirationsOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const optionExpirationDto = z.object({expirationDate: z.string().optional(), contractCount: z.number().int().optional()});

export const optionExpirationsResponse = z.object({ticker: z.string().nullable().optional(), companyName: z.string().nullable().optional(), truncated: z.boolean().optional(), expirations: z.array(optionExpirationDto).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
};

/**
 * The available option expiration dates for a stock, ascending, with the number of listed contracts at each. Use one of these as the `expiration` for the option chain. This endpoint returns dates and counts, not price quotes; an empty successful response means the stock has no listed options, while an unavailable feed returns 503. Pass `expired=true` to list past expirations instead, for use with the session and bars endpoints; `startDate` and `endDate` then bound the expiration dates and default to the last 90 days.
 * 
 * GET /v1/stocks/{ticker}/options/expirations
 */
export const getApiV1StocksTickerOptionsExpirations = async (args: GetApiV1StocksTickerOptionsExpirationsArgs, options?: GetApiV1StocksTickerOptionsExpirationsOptions) => {
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.expired != null) query.append("expired", String(args.expired))
if (args.startDate != null) query.append("startDate", String(args.startDate))
if (args.endDate != null) query.append("endDate", String(args.endDate))
if (ApiKey !== undefined) headers.set('authorization', `Bearer ${ApiKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/stocks/${encodeURIComponent(String(args.ticker))}/options/expirations${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(optionExpirationsResponse, await res.json())
};