import {z} from 'zod'

export type GetApiPersistenceItemsItemnameArgs = {serviceId?: string | undefined, itemname: string, starttime?: string | undefined, endtime?: string | undefined, page?: number | undefined, pagelength?: number | undefined, boundary?: boolean | undefined};

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

export const historyDataBean = z.object({time: z.number().int().optional(), state: z.string().optional()});

export const itemHistoryDTO = z.object({name: z.string().optional(), totalrecords: z.string().optional(), datapoints: z.string().optional(), data: z.array(historyDataBean).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
};

/**
 * Gets item persistence data from the persistence service.
 * 
 * GET /persistence/items/{itemname}
 */
export const getApiPersistenceItemsItemname = async (args: GetApiPersistenceItemsItemnameArgs, options: GetApiPersistenceItemsItemnameOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.serviceId != null) query.append("serviceId", String(args.serviceId))
if (args.starttime != null) query.append("starttime", String(args.starttime))
if (args.endtime != null) query.append("endtime", String(args.endtime))
if (args.page != null) query.append("page", String(args.page))
if (args.pagelength != null) query.append("pagelength", String(args.pagelength))
if (args.boundary != null) query.append("boundary", String(args.boundary))

const url = `${baseUrl.replace(/\/+$/, '')}/persistence/items/${encodeURIComponent(String(args.itemname))}${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(itemHistoryDTO, await res.json())
};