import {z} from 'zod'

export type GetApiStatisticsArgs = {dateFrom?: (string | null) | undefined, dateTo?: (string | null) | undefined, pullZone?: number | undefined, serverZoneId?: number | undefined, loadErrors?: boolean | undefined, hourly?: boolean | undefined, exactRange?: boolean | undefined, loadOriginResponseTimes?: boolean | undefined, loadOriginTraffic?: boolean | undefined, loadRequestsServed?: boolean | undefined, loadBandwidthUsed?: boolean | undefined, loadOriginShieldBandwidth?: boolean | undefined, loadGeographicTrafficDistribution?: boolean | undefined, loadUserBalanceHistory?: boolean | undefined};

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

export const statisticsModel = z.object({TotalBandwidthUsed: z.number().int().optional(), TotalOriginTraffic: z.number().int().optional(), AverageOriginResponseTime: z.number().int().optional(), OriginResponseTimeChart: z.record(z.string(), z.number()).nullable().optional(), TotalRequestsServed: z.number().int().optional(), CacheHitRate: z.number().optional(), BandwidthUsedChart: z.record(z.string(), z.number()).nullable().optional(), BandwidthCachedChart: z.record(z.string(), z.number()).nullable().optional(), CacheHitRateChart: z.record(z.string(), z.number()).nullable().optional(), RequestsServedChart: z.record(z.string(), z.number()).nullable().optional(), PullRequestsPulledChart: z.record(z.string(), z.number()).nullable().optional(), OriginShieldBandwidthUsedChart: z.record(z.string(), z.number()).nullable().optional(), OriginShieldInternalBandwidthUsedChart: z.record(z.string(), z.number()).nullable().optional(), OriginTrafficChart: z.record(z.string(), z.number()).nullable().optional(), UserBalanceHistoryChart: z.record(z.string(), z.number()).nullable().optional(), GeoTrafficDistribution: z.record(z.string(), z.number().int()).nullable().optional(), Error3xxChart: z.record(z.string(), z.number()).nullable().optional(), Error4xxChart: z.record(z.string(), z.number()).nullable().optional(), Error5xxChart: z.record(z.string(), z.number()).nullable().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 Statistics
 * 
 * GET /statistics
 * 
 * Also accepts auth: bearer
 */
export const getApiStatistics = async (args: GetApiStatisticsArgs, options?: GetApiStatisticsOptions) => {
const {baseUrl = "https://api.bunny.net", fetch: fetchFn = fetch, AccessKey} = options ?? {}

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

if (args.dateFrom != null) query.append("dateFrom", String(args.dateFrom))
if (args.dateTo != null) query.append("dateTo", String(args.dateTo))
if (args.pullZone != null) query.append("pullZone", String(args.pullZone))
if (args.serverZoneId != null) query.append("serverZoneId", String(args.serverZoneId))
if (args.loadErrors != null) query.append("loadErrors", String(args.loadErrors))
if (args.hourly != null) query.append("hourly", String(args.hourly))
if (args.exactRange != null) query.append("exactRange", String(args.exactRange))
if (args.loadOriginResponseTimes != null) query.append("loadOriginResponseTimes", String(args.loadOriginResponseTimes))
if (args.loadOriginTraffic != null) query.append("loadOriginTraffic", String(args.loadOriginTraffic))
if (args.loadRequestsServed != null) query.append("loadRequestsServed", String(args.loadRequestsServed))
if (args.loadBandwidthUsed != null) query.append("loadBandwidthUsed", String(args.loadBandwidthUsed))
if (args.loadOriginShieldBandwidth != null) query.append("loadOriginShieldBandwidth", String(args.loadOriginShieldBandwidth))
if (args.loadGeographicTrafficDistribution != null) query.append("loadGeographicTrafficDistribution", String(args.loadGeographicTrafficDistribution))
if (args.loadUserBalanceHistory != null) query.append("loadUserBalanceHistory", String(args.loadUserBalanceHistory))
if (AccessKey !== undefined) headers.set("AccessKey", AccessKey)

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