import {z} from 'zod'

export type GetApiApiV4SystemsSystemIdTelemetryBatteryArgs = {system_id: number, start_at?: number | undefined, granularity?: ('5mins' | '15mins' | 'day' | 'week') | undefined};

export type GetApiApiV4SystemsSystemIdTelemetryBatteryOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiApiV4SystemsSystemIdTelemetryBatteryResponse = z.object({system_id: z.number().int().optional(), granularity: z.string().optional(), total_devices: z.number().int().optional(), start_at: z.number().int().optional(), end_at: z.number().int().optional(), items: z.string().optional(), intervals: z.array(z.object({end_at: z.number().int().optional(), charge: z.object({enwh: z.number().int().optional(), devices_reporting: z.number().int().optional()}).optional(), discharge: z.object({enwh: z.number().int().optional(), devices_reporting: z.number().int().optional()}).optional(), soc: z.object({percent: z.number().int().optional(), devices_reporting: z.number().int().optional()}).optional()})).optional(), last_reported_aggregate_soc: z.string().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
};

/**
 * Retrieves telemetry for all batteries for a system
 * 
 * GET /api/v4/systems/{system_id}/telemetry/battery
 */
export const getApiApiV4SystemsSystemIdTelemetryBattery = async (args: GetApiApiV4SystemsSystemIdTelemetryBatteryArgs, options?: GetApiApiV4SystemsSystemIdTelemetryBatteryOptions) => {
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.granularity != null) query.append("granularity", String(args.granularity))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v4/systems/${encodeURIComponent(String(args.system_id))}/telemetry/battery${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(getApiApiV4SystemsSystemIdTelemetryBatteryResponse, await res.json())
};