import {z} from 'zod'

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

export const zoneName = z.enum(["ch-dk-2", "de-muc-1", "ch-gva-2", "at-vie-1", "de-fra-1", "bg-sof-1", "at-vie-2", "hr-zag-1"]);

export const sosBucketUsage = z.object({name: z.string().optional(), "created-at": z.string().optional(), "zone-name": zoneName.optional(), size: z.number().int().gte(0).optional()});

export const getApiSosBucketsUsageResponse = z.object({"sos-buckets-usage": z.array(sosBucketUsage).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
};

/**
 * List SOS Buckets Usage
 * 
 * GET /sos-buckets-usage
 */
export const getApiSosBucketsUsage = async (options?: GetApiSosBucketsUsageOptions) => {
const {baseUrl = "https://api-ch-gva-2.exoscale.com/v2", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/sos-buckets-usage${query.size > 0 ? `?${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(getApiSosBucketsUsageResponse, await res.json())
};