/*
 * Copyright (c) 2018 - 2023, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
 *
 * Entgra (Pvt) Ltd. 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 io.entgra.device.mgt.core.task.mgt.core.dao.util;

import io.entgra.device.mgt.core.task.mgt.common.bean.DynamicTask;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.naming.InitialContext;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;

public class TaskManagementDAOUtil {
    private static final Log log = LogFactory.getLog(TaskManagementDAOUtil.class);

    public static void cleanupResources(Connection conn, PreparedStatement stmt, ResultSet rs) {
        if (rs != null) {
            try {
                rs.close();
            } catch (SQLException e) {
                log.warn("Error occurred while closing result set", e);
            }
        }
        if (stmt != null) {
            try {
                stmt.close();
            } catch (SQLException e) {
                log.warn("Error occurred while closing prepared statement", e);
            }
        }
        if (conn != null) {
            try {
                conn.close();
            } catch (SQLException e) {
                log.warn("Error occurred while closing database connection", e);
            }
        }
    }

    public static void cleanupResources(PreparedStatement stmt, ResultSet rs) {
        if (rs != null) {
            try {
                rs.close();
            } catch (SQLException e) {
                log.warn("Error occurred while closing result set", e);
            }
        }
        if (stmt != null) {
            try {
                stmt.close();
            } catch (SQLException e) {
                log.warn("Error occurred while closing prepared statement", e);
            }
        }
    }

    public static DataSource lookupDataSource(String dataSourceName,
                                              final Hashtable<Object, Object> jndiProperties) {
        try {
            if (jndiProperties == null || jndiProperties.isEmpty()) {
                return (DataSource) InitialContext.doLookup(dataSourceName);
            }
            final InitialContext context = new InitialContext(jndiProperties);
            return (DataSource) context.lookup(dataSourceName);
        } catch (Exception e) {
            throw new RuntimeException("Error in looking up data source: " + e.getMessage(), e);
        }
    }

    public static DynamicTask loadDynamicTask(ResultSet rs) throws SQLException {
        DynamicTask dynamicTask = new DynamicTask();
        dynamicTask.setDynamicTaskId(rs.getInt("DYNAMIC_TASK_ID"));
        dynamicTask.setName(rs.getString("NAME"));
        dynamicTask.setCronExpression(rs.getString("CRON"));
        dynamicTask.setTaskClassName(rs.getString("TASK_CLASS_NAME"));
        dynamicTask.setEnabled(rs.getBoolean("IS_ENABLED"));
        dynamicTask.setTenantId(rs.getInt("TENANT_ID"));
        return dynamicTask;
    }

    public static List<DynamicTask> loadDynamicTasks(ResultSet rs) throws SQLException {
        List<DynamicTask> dynamicTasks = new ArrayList<>();
        while (rs.next()) {
            dynamicTasks.add(loadDynamicTask(rs));
        }
        return dynamicTasks;
    }

}
