import {z} from 'zod'

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

export const flowAlertEntry = z.object({alert_rule: z.string().optional(), all_opening_trades: z.boolean().optional(), created_at: z.string().optional(), expiry: z.string().optional(), expiry_count: z.number().int().optional(), has_floor: z.boolean().optional(), has_multileg: z.boolean().optional(), has_singleleg: z.boolean().optional(), has_sweep: z.boolean().optional(), open_interest: z.number().nullable().optional(), option_chain: z.string().optional(), price: z.number().optional(), strike: z.string().optional(), ticker: z.string().optional(), total_ask_side_prem: z.number().optional(), total_bid_side_prem: z.number().optional(), total_premium: z.number().optional(), total_size: z.number().int().optional(), trade_count: z.number().int().optional(), type: z.enum(["call", "put"]).optional(), underlying_price: z.number().optional(), volume: z.number().int().optional(), volume_oi_ratio: z.number().optional()});

export const flowAlertResponse = z.object({data: z.array(flowAlertEntry).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
};

/**
 * Flow Alerts
 * 
 * GET /api/option-trades/flow-alerts
 */
export const getApiApiOptionTradesFlowAlerts = async (options?: GetApiApiOptionTradesFlowAlertsOptions) => {
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 (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/option-trades/flow-alerts${query.size > 0 ? `?${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(flowAlertResponse, await res.json())
};