import {z} from 'zod'

export type GetApiKosV1BucketsArgs = {page?: number | undefined, page_size?: number | undefined, name_filter?: string | undefined, refresh?: boolean | undefined};

export type GetApiKosV1BucketsOptions = {baseUrl: string, KCustomerID?: string | undefined, fetch?: typeof fetch | undefined};

export const bucketResponse = z.object({name: z.string().nullable().optional(), krnid: z.string().nullable().optional(), owner: z.string().optional(), account_id: z.string().optional(), createdAt: z.string().nullable().optional(), usedCapacity: z.number().nullable().optional(), allocatedCapacity: z.number().int().nullable().optional(), region: z.string().nullable().optional(), url: z.string().nullable().optional(), status: z.string().nullable().optional(), path: z.string().nullable().optional(), protocol: z.string().nullable().optional(), tags: z.record(z.string(), z.unknown()).nullable().optional(), versioning: z.boolean().nullable().optional(), anonymous_access: z.boolean().nullable().optional(), tier: z.string().nullable().optional()});

export const bucketsResponse = z.object({totalItems: z.number().int().optional(), totalPages: z.number().int().optional(), currentPage: z.number().int().optional(), nextPage: z.number().int().optional(), items: z.array(bucketResponse).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 all buckets
 * 
 * GET /kos/v1/buckets
 * 
 * Also accepts auth: Authorization
 */
export const getApiKosV1Buckets = async (args: GetApiKosV1BucketsArgs, options: GetApiKosV1BucketsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, KCustomerID} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.page_size != null) query.append("page_size", String(args.page_size))
if (args.name_filter != null) query.append("name_filter", String(args.name_filter))
if (args.refresh != null) query.append("refresh", String(args.refresh))
if (KCustomerID !== undefined) headers.set("K-Customer-ID", KCustomerID)

const url = `${baseUrl.replace(/\/+$/, '')}/kos/v1/buckets${query.size > 0 ? `?${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(bucketsResponse, await res.json())
};