import {z} from 'zod'

export type GetApiKapisResourcesKubesphereIoV1alpha2QuotasOptions = {baseUrl: string, BearerToken?: string | undefined, fetch?: typeof fetch | undefined};

export const bigInt = z.object({abs: z.array(z.number().int()), neg: z.boolean()});

export const infDec = z.object({scale: z.number().int(), unscaled: bigInt});

export const resourceInfDecAmount = z.object({Dec: infDec});

export const resourceInt64Amount = z.object({scale: z.number().int(), value: z.number().int()});

export const resourceQuantity = z.object({Format: z.string(), d: resourceInfDecAmount, i: resourceInt64Amount, s: z.string()});

export const v1ResourceQuotaStatus = z.object({hard: z.record(z.string(), resourceQuantity).optional(), used: z.record(z.string(), resourceQuantity).optional()});

export const apiResourceQuota = z.object({data: v1ResourceQuotaStatus, namespace: z.string()});

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 whole cluster's resource usage
 * 
 * GET /kapis/resources.kubesphere.io/v1alpha2/quotas
 */
export const getApiKapisResourcesKubesphereIoV1alpha2Quotas = async (options: GetApiKapisResourcesKubesphereIoV1alpha2QuotasOptions) => {
const {baseUrl, fetch: fetchFn = fetch, BearerToken} = options ?? {}

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

if (BearerToken !== undefined) headers.set("Authorization", BearerToken)

const url = `${baseUrl.replace(/\/+$/, '')}/kapis/resources.kubesphere.io/v1alpha2/quotas${query.size > 0 ? `?${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(apiResourceQuota, await res.json())
};