import {z} from 'zod'

export type GetApiUsersArgs = {relationships?: string | undefined, includes?: string | undefined, 'page[size]'?: number | undefined, 'page[number]'?: number | undefined};

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

export const userAttributes = z.object({name: z.string().optional(), username: z.string().optional(), email: z.string().optional(), active: z.boolean().optional(), last_login: z.union([z.string(), z.literal("Never")]).optional(), status: z.enum(["created", "invited", "verified"]).optional(), is_client_admin: z.boolean().optional(), is_delegated_admin: z.boolean().optional(), is_adfs_user: z.boolean().optional(), is_sso_user: z.boolean().optional(), signature: z.string().nullable().optional(), company: z.string().optional(), expires: z.union([z.string(), z.literal("NEVER")]).optional(), type: z.enum(["normal", "shared", "admin", "direct-link"]).optional(), user_type: z.string().optional(), can_create_lightbox: z.boolean().optional(), can_edit_profile: z.boolean().optional(), can_post_comments: z.boolean().optional(), can_folder_share: z.boolean().optional(), can_internal_folder_share: z.boolean().optional(), can_share_folders_and_files: z.boolean().optional(), can_internal_folder_and_file_share: z.boolean().optional(), can_direct_login: z.boolean().optional(), show_brand_section: z.boolean().optional(), hide_menu_by_default: z.boolean().optional(), is_direct_link_user: z.boolean().optional(), can_request_api: z.boolean().optional(), notify_active: z.boolean().optional(), notify_frequency: z.union([z.literal(0), z.literal(1), z.literal(2), z.literal(3)]).optional(), is_allowed_url_copy_with_direct_access: z.boolean().optional(), custom_metadata: z.string().optional(), internal_metadata: z.string().optional()});

export const user = z.object({id: z.string().optional(), type: z.string().optional(), attributes: userAttributes.optional()});

export const userPaginationLinks = z.object({first: z.string().optional(), last: z.string().optional(), prev: z.string().nullable().optional(), next: z.string().nullable().optional()});

export const filterEcho = z.union([z.record(z.string(), z.unknown()), z.array(z.unknown())]);

export const userPaginationMeta = z.object({current_page: z.number().int().optional(), from: z.number().int().optional(), last_page: z.number().int().optional(), links: z.array(z.object({url: z.string().nullable().optional(), label: z.string().optional(), active: z.boolean().optional()})).optional(), path: z.string().optional(), per_page: z.number().int().optional(), to: z.number().int().optional(), total: z.number().int().optional(), filter: filterEcho.optional(), sort: z.string().nullable().optional()});

export const userCollectionResponse = z.object({data: z.array(user).optional(), links: userPaginationLinks.optional(), meta: userPaginationMeta.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
};

/**
 * Returns a list of all users including admins
 * 
 * GET /users
 */
export const getApiUsers = async (args: GetApiUsersArgs, options: GetApiUsersOptions) => {
const {baseUrl, fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (args.relationships != null) query.append("relationships", String(args.relationships))
if (args.includes != null) query.append("includes", String(args.includes))
if (args['page[size]'] != null) query.append("page[size]", String(args['page[size]']))
if (args['page[number]'] != null) query.append("page[number]", String(args['page[number]']))
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(userCollectionResponse, await res.json())
};