import {z} from 'zod'

export type GetApiApiV4SystemsSystemIdRgmStatsArgs = {system_id: number, start_at?: number | undefined, end_at?: number | undefined};

export type GetApiApiV4SystemsSystemIdRgmStatsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiApiV4SystemsSystemIdRgmStatsResponse = z.object({system_id: z.number().int().optional(), total_devices: z.number().int().optional(), meta: z.object({status: z.string().optional(), last_report_at: z.number().int().optional(), last_energy_at: z.number().int().optional(), operational_at: z.number().int().optional()}).optional(), intervals: z.array(z.object({end_at: z.number().int().optional(), devices_reporting: z.number().int().optional(), wh_del: z.number().int().optional()})).optional(), meter_intervals: z.array(z.object({meter_serial_number: z.string().optional(), envoy_serial_number: z.string().optional(), intervals: z.array(z.object({channel: z.number().int().optional(), end_at: z.number().int().optional(), wh_del: z.number().int().optional(), curr_w: z.number().int().optional()})).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
};

/**
 * rgm_stats
 * 
 * GET /api/v4/systems/{system_id}/rgm_stats
 */
export const getApiApiV4SystemsSystemIdRgmStats = async (args: GetApiApiV4SystemsSystemIdRgmStatsArgs, options?: GetApiApiV4SystemsSystemIdRgmStatsOptions) => {
const {baseUrl = "https://api-qa2.enphaseenergy.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args.start_at != null) query.append("start_at", String(args.start_at))
if (args.end_at != null) query.append("end_at", String(args.end_at))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v4/systems/${encodeURIComponent(String(args.system_id))}/rgm_stats${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(getApiApiV4SystemsSystemIdRgmStatsResponse, await res.json())
};