package kryshen.catalina.startup;

import java.io.File;
import org.apache.catalina.startup.HostConfig;
import org.apache.juli.logging.LogFactory;

/**
 *
 * @author Mikhail Kryshen
 */
public abstract class UserConfig extends HostConfig {

    /**
     * The directory name to be searched for within each user home directory.
     */
    private String directoryName = "public_webapps";

    
    protected UserConfig() {
        log = LogFactory.getLog(UserConfig.class);
    }

    /**
     *  Returns the directory name to be searched for webapps for each user
     *  (relative to the user's home direcotry).
     */
    public String getDirectoryName() {
        return directoryName;
    }

    /**
     *  Set the directory name to be searched for webapps for each user
     *  (relative to the user's home direcotry).
     * 
     * @param directoryName The new directory name
     */
    public void setDirectoryName(String directoryName) {
        this.directoryName = directoryName;
    }

    @Override
    protected void deployApps() {       
        deployUserApps();
    }

    @Override
    protected void deployApps(String name) {
        throw new UnsupportedOperationException
                ("deployApps(String) is not supported.");
    }

    /**
     * Deploy applications for all available users.
     */
    protected abstract void deployUserApps();

    /**
     * Deploy applications (if any) for specific user.
     *
     * @param user Username
     * @param home User home directory
     */
    protected void deployUserApps(String user, File home) {
        File base = new File(home, directoryName);

        if (!base.isDirectory() || !base.canRead()) {
            return;
        }

        // TODO: deployWars

        deployDirectories(user, base, base.list());
    }

    /**
     * Deploy user webapp directories.
     */
    protected void deployDirectories(String user, File base, String[] files) {

        if (files == null) {
            log.warn("Error reading base directory: " + base.getPath() + ".");
            return;
        }

        for (int i = 0; i < files.length; i++) {
            if (files[i].equalsIgnoreCase("META-INF")) {
                continue;
            }

            if (files[i].equalsIgnoreCase("WEB-INF")) {
                continue;
            }

            File dir = new File(base, files[i]);

            if (!dir.isDirectory() || !dir.canRead()) {
                continue;
            }

            String contextPath;

            if (files[i].equals("ROOT")) {
                contextPath = "/~" + user;
            } else {
                contextPath = "/~" + user + '/' + files[i].replace('#', '/');
            }

            if (isServiced(contextPath)) {
                continue;
            }

            deployDirectory(contextPath, dir, dir.getAbsolutePath());
        }
    }
}