import {z} from 'zod'

export type GetApiV1MarketsCalendarArgs = {Accept: 'application/json', month?: number | undefined, year?: number | undefined};

export type GetApiV1MarketsCalendarOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const calendarResponse = z.object({calendar: z.object({days: z.object({day: z.array(z.object({date: z.string().optional(), status: z.enum(["open", "closed"]).optional(), description: z.string().optional(), premarket: z.object({start: z.string().optional(), end: z.string().optional()}).optional(), open: z.object({start: z.string().optional(), end: z.string().optional()}).optional(), postmarket: z.object({start: z.string().optional(), end: z.string().optional()}).optional()})).optional()}).optional(), month: z.number().int().optional(), year: z.number().int().optional()}).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
};

/**
 * Get Market Calendar
 * 
 * GET /v1/markets/calendar
 */
export const getApiV1MarketsCalendar = async (args: GetApiV1MarketsCalendarArgs, options?: GetApiV1MarketsCalendarOptions) => {
const {baseUrl = "https://api.tradier.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args.Accept != null) headers.set("Accept", String(args.Accept))
if (args.month != null) query.append("month", String(args.month))
if (args.year != null) query.append("year", String(args.year))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/markets/calendar${query.size > 0 ? `?${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(calendarResponse, await res.json())
};