/*
 * The MIT License
 * 
 * Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package hudson.tasks.test;

import hudson.model.AbstractBuild;
import hudson.model.AbstractProject;
import hudson.model.Action;
import hudson.tasks.junit.JUnitResultArchiver;
import org.kohsuke.stapler.Ancestor;
import org.kohsuke.stapler.StaplerRequest;
import org.kohsuke.stapler.StaplerResponse;

import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

/**
 * Project action object from test reporter, such as {@link JUnitResultArchiver},
 * which displays the trend report on the project top page.
 *
 * <p>
 * This works with any {@link AbstractTestResultAction} implementation.
 *
 * @author Kohsuke Kawaguchi
 */
public class TestResultProjectAction implements Action {
    /**
     * Project that owns this action.
     */
    //TODO: review and check whether we can do it private
    public final AbstractProject<?,?> project;

    public TestResultProjectAction(AbstractProject<?,?> project) {
        this.project = project;
    }

    /**
     * No task list item.
     */
    public String getIconFileName() {
        return null;
    }

    public String getDisplayName() {
        return "Test Report";
    }

    public String getUrlName() {
        return "test";
    }

    public AbstractProject<?, ?> getProject() {
        return project;
    }

    public AbstractTestResultAction getLastTestResultAction() {
        final AbstractBuild<?,?> tb = project.getLastSuccessfulBuild();

        AbstractBuild<?,?> b=project.getLastBuild();
        while(b!=null) {
            AbstractTestResultAction a = b.getTestResultAction();
            if(a!=null) return a;
            if(b==tb)
                // if even the last successful build didn't produce the test result,
                // that means we just don't have any tests configured.
                return null;
            b = b.getPreviousBuild();
        }

        return null;
    }

    /**
     * Display the test result trend.
     */
    public void doTrend( StaplerRequest req, StaplerResponse rsp ) throws IOException, ServletException {
        AbstractTestResultAction a = getLastTestResultAction();
        if(a!=null)
            a.doGraph(req,rsp);
        else
            rsp.setStatus(HttpServletResponse.SC_NOT_FOUND);
    }

    /**
     * Generates the clickable map HTML fragment for {@link #doTrend(StaplerRequest, StaplerResponse)}.
     */
    public void doTrendMap( StaplerRequest req, StaplerResponse rsp ) throws IOException, ServletException {
        AbstractTestResultAction a = getLastTestResultAction();
        if(a!=null)
            a.doGraphMap(req,rsp);
        else
            rsp.setStatus(HttpServletResponse.SC_NOT_FOUND);
    }

    /**
     * Changes the test result report display mode.
     */
    public void doFlipTrend( StaplerRequest req, StaplerResponse rsp ) throws IOException, ServletException {
        boolean failureOnly = false;

        // check the current preference value
        Cookie[] cookies = req.getCookies();
        if(cookies!=null) {
            for (Cookie cookie : cookies) {
                if(cookie.getName().equals(FAILURE_ONLY_COOKIE))
                    failureOnly = Boolean.parseBoolean(cookie.getValue());
            }
        }

        // flip!
        failureOnly = !failureOnly;

        // set the updated value
        Cookie cookie = new Cookie(FAILURE_ONLY_COOKIE,String.valueOf(failureOnly));
        List anc = req.getAncestors();
        Ancestor a = (Ancestor) anc.get(anc.size()-2);
        cookie.setPath(a.getUrl()); // just for this project
        cookie.setMaxAge(60*60*24*365); // 1 year
        rsp.addCookie(cookie);

        // back to the project page
        rsp.sendRedirect("..");
    }

    private static final String FAILURE_ONLY_COOKIE = "TestResultAction_failureOnly";
}