import {z} from 'zod'

export type GetApiCallsIdStatsArgs = {id: string, kind: string, time: string, type: string, location_id?: string | undefined};

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

export const getApiCallsIdStatsResponse = z.object({meta: z.object({kind: z.string().optional(), call_id: z.string().optional(), type: z.string().optional(), time: z.string().optional(), location_id: z.string().optional(), name: z.string().optional()}).optional(), stat: z.object({avg_latency: z.number().optional(), max_latency: z.number().int().optional(), time: z.string().optional(), count: z.number().int().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
};

/**
 * Get Stats for an API Call for a Specific Time Period
 * 
 * GET /calls/{id}/stats/
 */
export const getApiCallsIdStats = async (args: GetApiCallsIdStatsArgs, options?: GetApiCallsIdStatsOptions) => {
const {baseUrl = "https://client.apimetrics.io/api/2", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (args.kind != null) query.append("kind", String(args.kind))
if (args.time != null) query.append("time", String(args.time))
if (args.type != null) query.append("type", String(args.type))
if (args.location_id != null) query.append("location_id", String(args.location_id))
if (ApiKeyAuth !== undefined) headers.set("Authorization", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/calls/${encodeURIComponent(String(args.id))}/stats/${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(getApiCallsIdStatsResponse, await res.json())
};