package at.ucs.magnolia.updates.util;

import info.magnolia.jcr.util.NodeTypes;
import info.magnolia.jcr.util.NodeUtil;
import info.magnolia.module.InstallContext;

import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.Session;

public class VersionUtil {

    private static Node getVersionsNode(InstallContext installContext) throws RepositoryException {
        // make sure we have the /modules node
        if (!installContext.hasModulesNode()) {
            final Session session = installContext.getConfigJCRSession();
            session.getRootNode().addNode("modules", NodeTypes.Content.NAME);
        }

        final Node moduleNode = installContext.getOrCreateCurrentModuleNode();

        if (!moduleNode.hasNode("config/versions")) {
            NodeUtil.createPath(moduleNode, "config/versions", "mgnl:content");
        }

        return moduleNode.getNode("config/versions");
    }

    public static boolean containsVersion(InstallContext installContext, String version) throws RepositoryException {
        Node versionNode = getVersionsNode(installContext);
        return versionNode != null && versionNode.hasProperty(version);
    }

    public static void addVersion(InstallContext installContext, String version, String name) throws RepositoryException {
        Node versionsNode = getVersionsNode(installContext);
        if (versionsNode != null) {
            versionsNode.setProperty(version, name);
        }
    }


}