import {z} from 'zod'

export type GetApiDataExtractsEventsArgs = {eventName: string, fromDate: string, toDate: string};

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

export const dataExtractsEventLinks = z.object({methodType: z.string().optional(), rel: z.string().optional(), href: z.string().optional()});

export const dataExtractsUser = z.object({loginName: z.string().optional()});

export const dataExtractsEventUserData = z.object({links: z.array(dataExtractsEventLinks).optional(), user: dataExtractsUser.optional()});

export const dataExtractsEventData = z.object({fromDate: z.string().optional(), userData: z.array(dataExtractsEventUserData).optional(), userCount: z.number().int().optional(), toDate: z.string().optional()});

export const dataExtractsEvent = z.object({data: dataExtractsEventData.optional(), info: z.string().optional()});

export const dataExtractsEventResponse = z.object({event: dataExtractsEvent.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 Events
 * 
 * GET /dataExtracts/events
 */
export const getApiDataExtractsEvents = async (args: GetApiDataExtractsEventsArgs, options: GetApiDataExtractsEventsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json;charset=UTF-8")

if (args.eventName != null) query.append("eventName", String(args.eventName))
if (args.fromDate != null) query.append("fromDate", String(args.fromDate))
if (args.toDate != null) query.append("toDate", String(args.toDate))

const url = `${baseUrl.replace(/\/+$/, '')}/dataExtracts/events${query.size > 0 ? `?${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(dataExtractsEventResponse, await res.json())
};