import {z} from 'zod'

export type GetApiUsersArgs = {limit?: number | undefined, sort?: string | undefined, filter?: string | undefined, showServiceUsers?: boolean | undefined};

export type GetApiUsersOptions = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const userResponse = z.object({userId: z.string(), name: z.string(), email: z.string(), phone: z.string().optional(), role: z.string().optional(), expressRoles: z.array(z.string()).optional(), groups: z.array(z.string()).optional(), applicationRoles: z.object({}).optional(), created: z.string(), modified: z.string(), isServiceUser: z.boolean().optional(), lastLogin: z.string().optional(), "...customAttributes": z.string().optional()});

export const getApiUsersResponse = z.array(userResponse);

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 Users
 * 
 * GET /users
 */
export const getApiUsers = async (args: GetApiUsersArgs, options?: GetApiUsersOptions) => {
const {baseUrl = "https://env.unqork.io/api/1.0", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.filter != null) query.append("filter", String(args.filter))
if (args.showServiceUsers != null) query.append("showServiceUsers", String(args.showServiceUsers))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

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