/**
 * This file is part of Graylog.
 *
 * Graylog is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Graylog is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Graylog.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.graylog2.users;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import org.graylog2.security.PasswordAlgorithmFactory;
import org.graylog2.shared.security.Permissions;
import org.junit.Rule;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnit;
import org.mockito.junit.MockitoRule;

import java.util.Collections;
import java.util.List;
import java.util.Map;

import static org.assertj.core.api.Assertions.assertThat;

public class UserImplTest {
    @Rule
    public MockitoRule mockitoRule = MockitoJUnit.rule();

    @Mock
    private PasswordAlgorithmFactory passwordAlgorithmFactory;

    private UserImpl user;

    @Test
    public void getPermissionsWorksWithEmptyPermissions() throws Exception {
        final Permissions permissions = new Permissions(Collections.emptySet());
        final Map<String, Object> fields = Collections.singletonMap(UserImpl.USERNAME, "foobar");
        user = new UserImpl(passwordAlgorithmFactory, permissions, fields);
        assertThat(user.getPermissions()).containsAll(permissions.userSelfEditPermissions("foobar"));
    }

    @Test
    public void getPermissionsReturnsListOfPermissions() throws Exception {
        final Permissions permissions = new Permissions(Collections.emptySet());
        final List<String> customPermissions = Collections.singletonList("subject:action");
        final Map<String, Object> fields = ImmutableMap.of(
            UserImpl.USERNAME, "foobar",
            UserImpl.PERMISSIONS, customPermissions);
        user = new UserImpl(passwordAlgorithmFactory, permissions, fields);
        assertThat(user.getPermissions())
            .containsAll(permissions.userSelfEditPermissions("foobar"))
            .contains("subject:action");
    }

    @Test
    public void permissionsArentModified() {
        final Permissions permissions = new Permissions(Collections.emptySet());
        final Map<String, Object> fields = Collections.singletonMap(UserImpl.USERNAME, "foobar");
        user = new UserImpl(passwordAlgorithmFactory, permissions, fields);

        final List<String> newPermissions = ImmutableList.<String>builder()
                .addAll(user.getPermissions())
                .add("perm:1")
                .build();
        user.setPermissions(newPermissions);
    }
}