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package atom.content.pm;

import atom.content.Context;
import atom.content.JcrManager;
import atom.content.PreferenceManager;

import javax.jcr.RepositoryException;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;
import java.io.IOException;
import java.io.InputStream;
import java.util.Objects;

/**
 * Information you can retrieve about a particular application.
 *
 * @author Alex Voloshyn
 * @version 1.6 4/20/14
 */
@XmlType(namespace = AbstractInfo.MANIFEST_NAMESPACE)
@XmlRootElement(name = "manifest", namespace = AbstractInfo.MANIFEST_NAMESPACE)
public class ApplicationInfo {
    /**
     * Corresponding package information.
     */
    private PackageInfo packageInfo;

    /**
     * Retrieves corresponding package information.
     *
     * @return corresponding package information
     */
    @XmlElement(name = "application",
            namespace = AbstractInfo.MANIFEST_NAMESPACE,
            required = true)
    public final PackageInfo getPackageInfo() {
        return packageInfo;
    }

    /**
     * Sets corresponding package information.
     *
     * @param pack corresponding package information
     */
    public final void setPackageInfo(final PackageInfo pack) {
        packageInfo = pack;
    }

    /**
     * Provide operation on registration stage, such as initial data import and
     * so on.
     */
    public final void onRegister() {
        final PackageInfo thePackage = getPackageInfo();
        if (thePackage != null) {
            // REGISTER JCR NODE TYPES
            final String dataTypes = thePackage.getDataTypes();
            if (dataTypes != null) {
                final InputStream stream = Thread.currentThread()
                        .getContextClassLoader().getResourceAsStream(dataTypes);
                final JcrManager manager =
                        Context.getSystemService(JcrManager.class);
                try {
                    manager.registerNodeTypes(stream);
                } catch (RepositoryException | IOException e) {
                    e.printStackTrace();
                }
            }

            // REGISTER JCR INITIAL DATA
            final String content = thePackage.getInitialContent();
            if (content != null) {
                final InputStream stream = Thread.currentThread()
                        .getContextClassLoader().getResourceAsStream(content);
                final JcrManager manager =
                        Context.getSystemService(JcrManager.class);
                try {
                    manager.initialContent(thePackage.getName(), stream);
                } catch (RepositoryException | IOException e) {
                    e.printStackTrace();
                }
            }

            // REGISTER INITIAL PREFERENCES
            PreferenceManager.SETTINGS.importXml(thePackage);
        }
    }

    /* (non-Javadoc)
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public boolean equals(final Object object) {
        boolean areEquals;
        if (this == object) {
            areEquals = true;
        } else {
            if (object instanceof ApplicationInfo) {
                final ApplicationInfo that = (ApplicationInfo) object;
                areEquals = Objects.equals(packageInfo, that.packageInfo);
            } else {
                areEquals = false;
            }
        }
        return areEquals;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#hashCode()
     */
    @Override
    public int hashCode() {
        return Objects.hash(packageInfo);
    }

    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return String.format("ApplicationInfo { package='%s' }", packageInfo);
    }
}