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 * CruiseControl, a Continuous Integration Toolkit
 * Copyright (c) 2001, ThoughtWorks, Inc.
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package net.sourceforge.cruisecontrol.taglib;

import java.io.File;

import javax.servlet.jsp.JspException;

import net.sourceforge.cruisecontrol.BuildInfo;


/**
 * Check to see if their are at least the number of builds as defined in startingBuildNumber.  If it does not, then
 * do not evaluate the body of the tag.
 */
public class NavigationCountTag extends CruiseControlTagSupport {
    public static final String LINK_TEXT_ATTR = "linktext";
    public static final String LOG_FILE_ATTR = "logfile";
    public static final String BUILD_INFO_ATTR = "buildinfo";

    private int startingBuildNumber = 0;
    private int count;

    public int doStartTag() throws JspException {
        BuildInfo [] logFileNames = findLogFiles();

        count = logFileNames.length;
        //sort links...
//        Arrays.sort(logFileNames, new ReversedComparator());
//        buildInfo = logFileNames;
        if (count > startingBuildNumber) {
            return EVAL_BODY_INCLUDE;
        } else {
            return SKIP_BODY;
        }
    }

    private BuildInfo[] findLogFiles() throws JspException {
        File logDir = findLogDir();
        return BuildInfo.loadFromDir(logDir).asArray();
    }

    public int getStartingBuildNumber() {
        return startingBuildNumber;
    }

    public void setStartingBuildNumber(int startingBuildNumber) {
        this.startingBuildNumber = startingBuildNumber;
    }
}