import {z} from 'zod'

export type GetApiV3UsersSleepDateArgs = {date: string};

export type GetApiV3UsersSleepDateOptions = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const sleep = z.object({polar_user: z.string().optional(), date: z.string().optional(), sleep_start_time: z.string().optional(), sleep_end_time: z.string().optional(), device_id: z.string().optional(), continuity: z.number().optional(), continuity_class: z.number().int().optional(), light_sleep: z.number().int().optional(), deep_sleep: z.number().int().optional(), rem_sleep: z.number().int().optional(), unrecognized_sleep_stage: z.number().int().optional(), sleep_score: z.number().int().optional(), total_interruption_duration: z.number().int().optional(), sleep_charge: z.number().int().optional(), sleep_goal: z.number().int().optional(), sleep_rating: z.number().int().optional(), short_interruption_duration: z.number().int().optional(), long_interruption_duration: z.number().int().optional(), sleep_cycles: z.number().int().optional(), group_duration_score: z.number().optional(), group_solidity_score: z.number().optional(), group_regeneration_score: z.number().optional(), hypnogram: z.object({}).optional(), heart_rate_samples: z.object({}).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 Sleep
 * 
 * GET /v3/users/sleep/{date}
 */
export const getApiV3UsersSleepDate = async (args: GetApiV3UsersSleepDateArgs, options?: GetApiV3UsersSleepDateOptions) => {
const {baseUrl = "https://www.polaraccesslink.com", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v3/users/sleep/${encodeURIComponent(String(args.date))}${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(sleep, await res.json())
};