import {z} from 'zod'

export type GetApiUsersIdArgs = {id: string, attributes?: string | undefined, excludedAttributes?: string | undefined};

export type GetApiUsersIdOptions = {baseUrl?: string | undefined, OAuth2ClientCredentials?: string | undefined, fetch?: typeof fetch | undefined};

export const userResponseObject = z.object({meta: z.object({created: z.string().optional(), location: z.string().optional(), lastModified: z.string().optional(), resourceType: z.string().optional()}), schemas: z.array(z.string()).optional(), username: z.string().optional(), id: z.string().optional(), name: z.object({givenName: z.string().optional(), familyName: z.string().optional()}).optional(), emails: z.array(z.union([z.string(), z.object({})])).optional(), "urn:ietf:params:scim:schemas:extension:enterprise:2.0:User": z.object({manager: z.object({value: z.string().optional()}).optional()}).optional(), roles: z.array(z.object({type: z.string().optional(), value: z.string().optional()})).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 User by ID
 * 
 * GET /Users/{id}
 */
export const getApiUsersId = async (args: GetApiUsersIdArgs, options?: GetApiUsersIdOptions) => {
const {baseUrl = "https://api.asgardeo.io/t//scim2", fetch: fetchFn = fetch, OAuth2ClientCredentials} = options ?? {}

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

if (args.attributes != null) query.append("attributes", String(args.attributes))
if (args.excludedAttributes != null) query.append("excludedAttributes", String(args.excludedAttributes))
if (OAuth2ClientCredentials !== undefined) headers.set('authorization', `Bearer ${OAuth2ClientCredentials}`)

const url = `${baseUrl.replace(/\/+$/, '')}/Users/${encodeURIComponent(String(args.id))}${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(userResponseObject, await res.json())
};