set_global('blueslip', {});
set_global('page_params', {});

zrequire('dict');
zrequire('user_groups');

run_test('user_groups', () => {
    var students = {
        name: 'Students',
        id: 0,
        members: [1, 2],
    };
    global.page_params.realm_user_groups = [students];

    user_groups.initialize();
    assert.equal(user_groups.get_user_group_from_id(students.id), students);

    var admins = {
        name: 'Admins',
        description: 'foo',
        id: 1,
        members: [3],
    };
    var all = {
        name: 'Everyone',
        id: 2,
        members: [1, 2, 3],
    };

    user_groups.add(admins);
    assert.equal(user_groups.get_user_group_from_id(admins.id), admins);

    var update_name_event = {
        group_id: admins.id,
        data: {
            name: "new admins",
        },
    };
    user_groups.update(update_name_event);
    assert.equal(user_groups.get_user_group_from_id(admins.id).name, "new admins");

    var update_des_event = {
        group_id: admins.id,
        data: {
            description: "administer",
        },
    };
    user_groups.update(update_des_event);
    assert.equal(user_groups.get_user_group_from_id(admins.id).description, "administer");

    var called = false;
    global.blueslip.error = function (msg) {
        assert.equal(msg, "Unknown group_id in get_user_group_from_id: " + all.id);
        called = true;
    };

    assert.equal(user_groups.get_user_group_from_id(all.id), undefined);
    assert(called);

    user_groups.remove(students);
    global.blueslip.error = function (msg) {
        assert.equal(msg, "Unknown group_id in get_user_group_from_id: " + students.id);
    };
    assert.equal(user_groups.get_user_group_from_id(students.id), undefined);

    assert.equal(user_groups.get_user_group_from_name(all.name), undefined);
    assert.equal(user_groups.get_user_group_from_name(admins.name).id, 1);

    user_groups.add(all);
    var user_groups_array = user_groups.get_realm_user_groups();
    assert.equal(user_groups_array.length, 2);
    assert.equal(user_groups_array[1].name, 'Everyone');
    assert.equal(user_groups_array[0].name, 'new admins');

    assert(!user_groups.is_member_of(admins.id, 4));
    assert(user_groups.is_member_of(admins.id, 3));

    user_groups.add_members(all.id, [5, 4]);
    assert.deepEqual(user_groups.get_user_group_from_id(all.id).members,
                     Dict.from_array([1, 2, 3, 5, 4]));

    user_groups.remove_members(all.id, [1, 4]);
    assert.deepEqual(user_groups.get_user_group_from_id(all.id).members,
                     Dict.from_array([2, 3, 5]));

    assert(user_groups.is_user_group(admins));
    var object = {
        name: 'core',
        id: 3,
    };
    assert(!user_groups.is_user_group(object));

    user_groups.init();
    assert.equal(user_groups.get_realm_user_groups().length, 0);
});