/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.dolphinscheduler.dao.mapper;

import org.apache.dolphinscheduler.common.constants.Constants;
import org.apache.dolphinscheduler.common.enums.CommandType;
import org.apache.dolphinscheduler.common.enums.FailureStrategy;
import org.apache.dolphinscheduler.common.enums.Flag;
import org.apache.dolphinscheduler.common.enums.Priority;
import org.apache.dolphinscheduler.common.enums.ReleaseState;
import org.apache.dolphinscheduler.common.enums.TaskDependType;
import org.apache.dolphinscheduler.common.enums.WarningType;
import org.apache.dolphinscheduler.common.utils.DateUtils;
import org.apache.dolphinscheduler.dao.BaseDaoTest;
import org.apache.dolphinscheduler.dao.entity.Command;
import org.apache.dolphinscheduler.dao.entity.CommandCount;
import org.apache.dolphinscheduler.dao.entity.ProcessDefinition;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;

/**
 * command mapper test
 */
public class CommandMapperTest extends BaseDaoTest {

    @Autowired
    private CommandMapper commandMapper;

    @Autowired
    private ProcessDefinitionMapper processDefinitionMapper;

    /**
     * test insert
     */
    @Test
    public void testInsert() {
        Command command = createCommand();
        Assertions.assertTrue(command.getId() > 0);
    }

    /**
     * test select by id
     */
    @Test
    public void testSelectById() {
        Command expectedCommand = createCommand();
        // query
        Command actualCommand = commandMapper.selectById(expectedCommand.getId());

        Assertions.assertNotNull(actualCommand);
        Assertions.assertEquals(expectedCommand.getProcessDefinitionCode(), actualCommand.getProcessDefinitionCode());
    }

    /**
     * test update
     */
    @Test
    public void testUpdate() {

        Command expectedCommand = createCommand();

        // update the command time if current command if recover from waiting
        expectedCommand.setUpdateTime(DateUtils.getCurrentDate());

        commandMapper.updateById(expectedCommand);

        Command actualCommand = commandMapper.selectById(expectedCommand.getId());

        Assertions.assertNotNull(actualCommand);
        Assertions.assertEquals(expectedCommand.getUpdateTime(), actualCommand.getUpdateTime());

    }

    /**
     * test delete
     */
    @Test
    public void testDelete() {
        Command expectedCommand = createCommand();

        commandMapper.deleteById(expectedCommand.getId());

        Command actualCommand = commandMapper.selectById(expectedCommand.getId());

        Assertions.assertNull(actualCommand);
    }

    /**
     * test query all
     */
    @Test
    public void testGetAll() {
        Integer count = 10;

        Map<Integer, Command> commandMap = createCommandMap(count);

        List<Command> actualCommands = commandMapper.selectList(null);

        Assertions.assertTrue(actualCommands.size() >= count);
    }

    /**
     * test get on command to run
     */
    @Test
    public void testGetOneToRun() {

        ProcessDefinition processDefinition = createProcessDefinition();

        createCommand(CommandType.START_PROCESS, processDefinition.getCode());

        List<Command> actualCommand = commandMapper.queryCommandPage(1, 0);

        Assertions.assertNotNull(actualCommand);
    }

    /**
     * test count command state
     */
    @Test
    public void testCountCommandState() {
        Integer count = 10;

        ProcessDefinition processDefinition = createProcessDefinition();

        createCommandMap(count, CommandType.START_PROCESS, processDefinition.getCode());

        Long[] projectCodeArray = {processDefinition.getProjectCode()};

        Date startTime = DateUtils.stringToDate("2019-12-29 00:10:00");

        Date endTime = DateUtils.stringToDate("2019-12-29 23:59:59");

        List<CommandCount> actualCommandCounts = commandMapper.countCommandState(startTime, endTime, projectCodeArray);

        Assertions.assertTrue(actualCommandCounts.size() >= 1);
    }

    /**
     * test query command page by slot
     */
    @Test
    public void testQueryCommandPageBySlot() {
        int masterCount = 4;
        int thisMasterSlot = 2;
        // for hit or miss
        toTestQueryCommandPageBySlot(masterCount, thisMasterSlot);
        toTestQueryCommandPageBySlot(masterCount, thisMasterSlot);
        toTestQueryCommandPageBySlot(masterCount, thisMasterSlot);
        toTestQueryCommandPageBySlot(masterCount, thisMasterSlot);
    }

    private boolean toTestQueryCommandPageBySlot(int masterCount, int thisMasterSlot) {
        Command command = createCommand();
        Integer id = command.getId();
        boolean hit = id % masterCount == thisMasterSlot;
        List<Command> commandList = commandMapper.queryCommandPageBySlot(1, 0, masterCount, thisMasterSlot);
        if (hit) {
            Assertions.assertEquals(id, commandList.get(0).getId());
        } else {
            commandList.forEach(o -> {
                Assertions.assertNotEquals(id, o.getId());
                Assertions.assertEquals(thisMasterSlot, o.getId() % masterCount);
            });
        }
        return hit;
    }

    /**
     * create command map
     * @param count map count
     * @param commandType comman type
     * @param processDefinitionCode process definition code
     * @return command map
     */
    private CommandCount createCommandMap(
                                          Integer count,
                                          CommandType commandType,
                                          long processDefinitionCode) {

        CommandCount commandCount = new CommandCount();

        for (int i = 0; i < count; i++) {
            createCommand(commandType, processDefinitionCode);
        }
        commandCount.setCommandType(commandType);
        commandCount.setCount(count);

        return commandCount;
    }

    /**
     *  create process definition
     * @return process definition
     */
    private ProcessDefinition createProcessDefinition() {
        ProcessDefinition processDefinition = new ProcessDefinition();
        processDefinition.setCode(1L);
        processDefinition.setReleaseState(ReleaseState.ONLINE);
        processDefinition.setName("ut test");
        processDefinition.setProjectCode(1L);
        processDefinition.setFlag(Flag.YES);
        processDefinition.setCreateTime(new Date());
        processDefinition.setUpdateTime(new Date());

        processDefinitionMapper.insert(processDefinition);

        return processDefinition;
    }

    /**
     * create command map
     * @param count map count
     * @return command map
     */
    private Map<Integer, Command> createCommandMap(Integer count) {
        Map<Integer, Command> commandMap = new HashMap<>();

        for (int i = 0; i < count; i++) {
            Command command = createCommand();
            commandMap.put(command.getId(), command);
        }
        return commandMap;
    }

    /**
     * create command
     * @return
     */
    private Command createCommand() {
        return createCommand(CommandType.START_PROCESS, 1);
    }

    /**
     * create command
     * @return Command
     */
    private Command createCommand(CommandType commandType, long processDefinitionCode) {

        Command command = new Command();
        command.setCommandType(commandType);
        command.setProcessDefinitionCode(processDefinitionCode);
        command.setExecutorId(4);
        command.setCommandParam("test command param");
        command.setTaskDependType(TaskDependType.TASK_ONLY);
        command.setFailureStrategy(FailureStrategy.CONTINUE);
        command.setWarningType(WarningType.ALL);
        command.setWarningGroupId(1);
        command.setScheduleTime(DateUtils.stringToDate("2019-12-29 12:10:00"));
        command.setProcessInstancePriority(Priority.MEDIUM);
        command.setStartTime(DateUtils.stringToDate("2019-12-29 10:10:00"));
        command.setUpdateTime(DateUtils.stringToDate("2019-12-29 10:10:00"));
        command.setWorkerGroup(Constants.DEFAULT_WORKER_GROUP);
        command.setProcessInstanceId(0);
        command.setProcessDefinitionVersion(0);
        commandMapper.insert(command);

        return command;
    }

}
