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 * CruiseControl, a Continuous Integration Toolkit
 * Copyright (c) 2007, ThoughtWorks, Inc.
 * 200 E. Randolph, 25th Floor
 * Chicago, IL 60601 USA
 * All rights reserved.
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package net.sourceforge.cruisecontrol.dashboard.service;

import net.sourceforge.cruisecontrol.dashboard.BuildDetail;
import net.sourceforge.cruisecontrol.dashboard.widgets.Widget;
import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;

import java.util.Iterator;
import java.util.Map;

public class WidgetPluginService {

    private static Logger logger = Logger.getLogger(WidgetPluginService.class);

    private final DashboardXmlConfigService dashboardXmlConfigService;

    public WidgetPluginService(DashboardXmlConfigService dashboardXmlConfigService) {
        this.dashboardXmlConfigService = dashboardXmlConfigService;
    }

    public void mergePluginOutput(BuildDetail build, Map parameters) {
        Iterator iterator = dashboardXmlConfigService.getSubTabClassNames().iterator();
        while (iterator.hasNext()) {
            try {
                assemblePlugin(build, parameters, (String) iterator.next());
            } catch (Exception e) {
                logger.error(e);
                continue;
            }
        }
    }

    void assemblePlugin(BuildDetail build, Map parameters, String line) throws Exception {
        String className = line.trim();
        if (className.startsWith("#") || StringUtils.isEmpty(className)) {
            return;
        }
        Class clazz = Class.forName(className);
        Widget digesterService = (Widget) clazz.newInstance();
        mergeParameters(build, parameters);
        build.addPluginOutput(digesterService.getDisplayName(), digesterService.getOutput(parameters));
    }

    private void mergeParameters(BuildDetail build, Map parameters) {
        parameters.put(Widget.PARAM_PJT_NAME, build.getProjectName());
        parameters.put(Widget.PARAM_PJT_LOG_ROOT, build.getLogFolder());
        parameters.put(Widget.PARAM_BUILD_LOG_FILE, build.getLogFile());
        parameters.put(Widget.PARAM_BUILD_ARTIFACTS_ROOT, build.getArtifactFolder());
        parameters.put(Widget.PARAM_CC_ROOT, getCCDir());
        parameters.put(Widget.PARAM_WEBAPP_ROOT, getCCDir() + "/webapps/dashboard/");
    }

    private String getCCDir() {
        String ccdir = System.getenv("CCDIR");
        if (ccdir == null) {
            ccdir = System.getProperty("user.dir");
        }
        return ccdir;
    }
}