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/*
 * Copyright 2013-2024 the HotswapAgent authors.
 *
 * This file is part of HotswapAgent.
 *
 * HotswapAgent 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 2 of the License, or (at your
 * option) any later version.
 *
 * HotswapAgent 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 HotswapAgent. If not, see http://www.gnu.org/licenses/.
 */
package org.hotswap.agent.plugin.ibatis;

import java.net.URL;
import java.util.HashSet;
import java.util.Set;

import org.hotswap.agent.annotation.FileEvent;
import org.hotswap.agent.annotation.Init;
import org.hotswap.agent.annotation.OnResourceFileEvent;
import org.hotswap.agent.annotation.Plugin;
import org.hotswap.agent.command.Command;
import org.hotswap.agent.command.ReflectionCommand;
import org.hotswap.agent.command.Scheduler;
import org.hotswap.agent.config.PluginConfiguration;
import org.hotswap.agent.logging.AgentLogger;
import org.hotswap.agent.plugin.ibatis.IBatisConfigurationHandler;

/**
 * Reload IBatis configuration after entity change.
 *
 * @author muwaiwai
 * @date 2021-6-18
 */
@Plugin(name = "IBatis",
        description = "Reload IBatis configuration after configuration create/change.",
        testedVersions = {"All between 2.3.4"},
        expectedVersions = {"2.3.4" },
        supportClass = { IBatisTransformers.class })
public class IBatisPlugin {
    private static AgentLogger LOGGER = AgentLogger.getLogger(IBatisPlugin.class);

    @Init
    private Scheduler scheduler;

    @Init
    private ClassLoader appClassLoader;

    private Set configFileSet = new HashSet<>();

    private Command reloadIbatisConfigurationCommand =
            new ReflectionCommand(this, IBatisConfigurationHandler.class.getName(), "refresh");

    @Init
    public void init(PluginConfiguration pluginConfiguration) {
        LOGGER.info("IBatis plugin initialized.");
    }

    public void registConfigFile(String configFiles){
        String[]paths=configFiles.split("\n");
        for(String ph:paths) {
            configFileSet.add(ph);
            LOGGER.debug("IBatis config file registered : {}", ph);
        }
    }

    @OnResourceFileEvent(path="/", filter = ".*.xml", events = {FileEvent.MODIFY})
    public void registerResourceListenersModify(URL url) {
        if(configFileSet.contains(url.getPath())) {
            LOGGER.info("IBatis config file changed : {}", url.getPath());
            scheduler.scheduleCommand(reloadIbatisConfigurationCommand, 500);
        }
    }
}