import {z} from 'zod'

export type GetApiV4UserCalendarArgs = {divisionId: number, from?: string | undefined, to?: string | undefined, language?: ('en' | 'ar' | 'de' | 'ru' | 'zh' | 'ja' | 'nl' | 'fa' | 'fr' | 'el' | 'it' | 'ko' | 'pt' | 'es' | 'tr' | 'pl') | undefined};

export type GetApiV4UserCalendarOptions = {baseUrl: string, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV4UserCalendarResponse = z.object({data: z.array(z.object({id: z.number().int(), timestamp: z.string(), event: z.string(), country: z.string(), priority: z.number(), period: z.string(), actual: z.string(), forecast: z.string(), previous: z.string(), icon: z.string()}))});

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 calendar events
 * 
 * GET /v4/user/calendar
 */
export const getApiV4UserCalendar = async (args: GetApiV4UserCalendarArgs, options: GetApiV4UserCalendarOptions) => {
const {baseUrl, fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.divisionId != null) query.append("divisionId", String(args.divisionId))
if (args.from != null) query.append("from", String(args.from))
if (args.to != null) query.append("to", String(args.to))
if (args.language != null) query.append("language", String(args.language))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v4/user/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(getApiV4UserCalendarResponse, await res.json())
};