import {z} from 'zod'

export type GetApiApiOptionContractIdFlowArgs = {id: string, date?: string | undefined, limit?: number | undefined, min_premium?: number | undefined, side?: ('ALL' | 'ASK' | 'BID' | 'MID') | undefined};

export type GetApiApiOptionContractIdFlowOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const flowDataEntry = z.object({id: z.string().optional(), executed_at: z.string().optional(), price: z.string().optional(), premium: z.string().optional(), delta: z.string().optional(), implied_volatility: z.string().optional(), nbbo_ask: z.string().optional(), nbbo_bid: z.string().optional(), open_interest: z.number().int().optional(), volume: z.number().int().optional(), underlying_symbol: z.string().optional(), option_type: z.enum(["call", "put"]).optional(), expiry: z.string().optional(), strike: z.string().optional(), sector: z.string().optional(), size: z.number().int().optional(), tags: z.array(z.string()).optional(), upstream_condition_detail: z.string().optional()});

export const flowDataResponse = z.object({data: z.array(flowDataEntry).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
};

/**
 * Retrieve Flow Data
 * 
 * GET /api/option-contract/{id}/flow
 */
export const getApiApiOptionContractIdFlow = async (args: GetApiApiOptionContractIdFlowArgs, options?: GetApiApiOptionContractIdFlowOptions) => {
const {baseUrl = "https://api.unusualwhales.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args.date != null) query.append("date", String(args.date))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.min_premium != null) query.append("min_premium", String(args.min_premium))
if (args.side != null) query.append("side", String(args.side))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/option-contract/${encodeURIComponent(String(args.id))}/flow${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(flowDataResponse, await res.json())
};