local array = require "util.array";

local it = require "util.iterators";

local set = require "util.set";

local jid_split = require "util.jid".split;

local normalize = require "util.jid".prep;

local config_admin_jids = module:get_option_inherited_set("admins", {}) / normalize;

local host = module.host;

local role_store = module:open_store("roles");

local role_map_store = module:open_store("roles", "map");

local admin_role = { ["prosody:admin"] = true };

function get_user_roles(user)

	if config_admin_jids:contains(user.."@"..host) then

		return admin_role;

	end

	return role_store:get(user);

end

function set_user_roles(user, roles)

	role_store:set(user, roles)

	return true;

end

function get_users_with_role(role)

	local storage_role_users = it.to_array(it.keys(role_map_store:get_all(role) or {}));

	if role == "prosody:admin" then

		local config_admin_users = config_admin_jids / function (admin_jid)

			local j_node, j_host = jid_split(admin_jid);

			if j_host == host then

				return j_node;

			end

		end;

		return it.to_array(config_admin_users + set.new(storage_role_users));

	end

	return storage_role_users;

end

function get_jid_roles(jid)

	if config_admin_jids:contains(jid) then

		return admin_role;

	end

	return nil;

end

function set_jid_roles(jid) -- luacheck: ignore 212

	return false;

end

function get_jids_with_role(role)

	-- Fetch role users from storage

	local storage_role_jids = array.map(get_users_with_role(role), function (username)

		return username.."@"..host;

	end);

	if role == "prosody:admin" then

		return it.to_array(config_admin_jids + set.new(storage_role_jids));

	end

	return storage_role_jids;

end