/**
 * Copyright 2017-2020 ZTE Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.onap.holmes.rulemgt.db;

import org.easymock.EasyMock;
import org.jdbi.v3.core.Handle;
import org.jdbi.v3.core.Jdbi;
import org.jdbi.v3.core.result.ResultIterable;
import org.jdbi.v3.core.statement.Query;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.onap.holmes.common.api.entity.CorrelationRule;
import org.onap.holmes.common.exception.CorrelationException;
import org.onap.holmes.rulemgt.bean.request.RuleQueryCondition;
import org.powermock.api.easymock.PowerMock;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import org.powermock.reflect.Whitebox;

import java.util.*;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.is;

@RunWith(PowerMockRunner.class)
@PrepareForTest({Handle.class, Query.class})
public class CorrelationRuleQueryServiceTest {

    @Rule
    public ExpectedException thrown = ExpectedException.none();
    private Handle handle;
    private Query query;
    private ResultIterable resultIterable;
    private CorrelationRuleQueryService correlationRuleQueryDao;
    private RuleQueryCondition ruleQueryCondition;
    private Jdbi jdbi;

    @Before
    public void setUp() throws Exception {
        correlationRuleQueryDao = new CorrelationRuleQueryService();

        jdbi = PowerMock.createMock(Jdbi.class);
        handle = PowerMock.createMock(Handle.class);
        query = PowerMock.createMock(Query.class);
        resultIterable = PowerMock.createMock(ResultIterable.class);

        Whitebox.setInternalState(correlationRuleQueryDao, "jdbi", jdbi);

        ruleQueryCondition = createRuleQueryCondition();
    }


    @Test
    public void getCorrelationRulesByCondition_db_exception() throws Exception {

        thrown.expect(CorrelationException.class);
        thrown.expectMessage("Failed to query the rule.");

        EasyMock.expect(jdbi.open()).andReturn(handle);
        EasyMock.expect(handle.createQuery(EasyMock.anyObject(String.class))).andReturn(query);
        EasyMock.expect(query.mapToMap()).andThrow(new RuntimeException()).anyTimes();
        handle.close();
        EasyMock.expectLastCall();

        PowerMock.replayAll();

        correlationRuleQueryDao.getCorrelationRulesByCondition(ruleQueryCondition);

        PowerMock.verifyAll();
    }

    @Test
    public void getCorrelationRulesByCondition_normal() throws Exception {
        EasyMock.expect(jdbi.open()).andReturn(handle);
        EasyMock.expect(handle.createQuery(EasyMock.anyObject(String.class))).andReturn(query);
        EasyMock.expect(query.mapToMap()).andReturn(resultIterable);
        EasyMock.expect(resultIterable.list()).andReturn(createQueryResult());
        handle.close();
        EasyMock.expectLastCall();

        PowerMock.replayAll();

        List<CorrelationRule> result = correlationRuleQueryDao.getCorrelationRulesByCondition(ruleQueryCondition);
        assertThat(result.size(), is(1));

        PowerMock.verifyAll();
    }

    @Test
    public void getCorrelationRulesByCondition_get_where_sql_exception() throws Exception {
        thrown.expect(CorrelationException.class);
        thrown.expectMessage("An error occurred while building the query SQL.");

        EasyMock.expect(jdbi.open()).andReturn(handle);
        EasyMock.expect(handle.createQuery(EasyMock.anyObject(String.class))).andReturn(query);
        EasyMock.expect(query.mapToMap()).andReturn(resultIterable);
        EasyMock.expect(resultIterable.list()).andReturn(createQueryResult());
        handle.close();
        EasyMock.expectLastCall();

        PowerMock.replayAll();

        correlationRuleQueryDao.getCorrelationRulesByCondition(null);

        PowerMock.verifyAll();
    }

    private List<Map<String, Object>> createQueryResult() {
        List<Map<String, Object>> list = new ArrayList<>();
        Map<String, Object> value = new HashMap<>();
        value.put("name", "Rule-001");
        value.put("rid", "rule_" + System.currentTimeMillis());
        value.put("description", "desc");
        value.put("enable", 0);
        value.put("templateid", 1L);
        value.put("engineid", "engine-001");
        value.put("enginetype", "engineType-001");
        value.put("creator", "admin");
        value.put("createtime", new Date());
        value.put("updator", "admin");
        value.put("updatetime", new Date());
        value.put("params", new Properties());
        value.put("domain", "Domain");
        value.put("ismanual", 0);
        value.put("vendor", "Vendor");
        value.put("content", "Contents");
        value.put("package", "package");
        list.add(value);
        return list;
    }

    private RuleQueryCondition createRuleQueryCondition() {
        RuleQueryCondition ruleQueryCondition = new RuleQueryCondition();
        ruleQueryCondition.setRid("rule_" + System.currentTimeMillis());
        ruleQueryCondition.setName("Rule-001");
        ruleQueryCondition.setEnabled(0);
        ruleQueryCondition.setCreator("admin");
        ruleQueryCondition.setModifier("admin");
        return ruleQueryCondition;
    }

}