/*
 * [PersistConfigForReceiver.java]
 *
 * Summary: Save configuration for client in the registry.
 *
 * Copyright: (c) 2009-2017 Roedy Green, Canadian Mind Products, http://mindprod.com
 *
 * Licence: This software may be copied and used freely for any purpose but military.
 *          http://mindprod.com/contact/nonmil.html
 *
 * Requires: JDK 1.8+
 *
 * Created with: JetBrains IntelliJ IDEA IDE http://www.jetbrains.com/idea/
 *
 * Version History:
 * 10.2 2009-04-03 tidy up code to check presence of necessary files to make it more WORA.
 */
package com.mindprod.replicator;

import com.mindprod.common18.ST;

import java.util.Properties;
import java.util.prefs.BackingStoreException;
import java.util.prefs.Preferences;

import static java.lang.System.*;

/**
 * Save configuration for client in the registry.
 *
 * @author Roedy Green, Canadian Mind Products
 * @version 10.2 2009-04-03 tidy up code to check presence of necessary files to make it more WORA.
 * @since 2007
 */
final class PersistConfigForReceiver extends ConfigForReceiver
    {
    /**
     * trim properties
     */
    private static void trimProperties()
        {
        PROJECT_NAME = PROJECT_NAME.trim();
        UNIQUE_PROJECT_NAME = UNIQUE_PROJECT_NAME.trim();
        SUGGESTED_RECEIVER_BASE_DIR = SUGGESTED_RECEIVER_BASE_DIR.trim();
        SUGGESTED_RECEIVER_ZIP_STAGING_DIR = SUGGESTED_RECEIVER_ZIP_STAGING_DIR.trim();
        WEBSITE_ZIP_URL = WEBSITE_ZIP_URL.trim();
        SUGGESTED_LAN_ZIP_URL = SUGGESTED_LAN_ZIP_URL.trim();
        AUTHENTICATION = AUTHENTICATION.trim();
        VIA = VIA.trim();
        }

    /**
     * check that all system property from JNLP or -D command line are present.
     */
    private static void verifyJNLPPropertiesAllSpecified()
        {
        if ( ST.isEmpty( PROJECT_NAME ) )
            {
            err.println( "Missing JNLP/System property PROJECT_NAME" );
            }
        if ( ST.isEmpty( UNIQUE_PROJECT_NAME ) )
            {
            err.println( "Missing JNLP/System property UNIQUE_PROJECT_NAME" );
            }
        if ( ST.isEmpty( SUGGESTED_RECEIVER_BASE_DIR ) )
            {
            err.println( "Missing JNLP/System property SUGGESTED_RECEIVER_BASE_DIR" );
            }
        if ( ST.isEmpty( SUGGESTED_RECEIVER_ZIP_STAGING_DIR ) )
            {
            err.println( "Missing JNLP/System property SUGGESTED_RECEIVER_BASE_DIR " );
            }
        if ( ST.isEmpty( SUGGESTED_LAN_ZIP_URL ) )
            {
            err.println( "Missing JNLP/System property SUGGESTED_LAN_ZIP_URL" );
            }
        if ( ST.isEmpty( AUTHENTICATION ) )
            {
            err.println( "Missing JNLP/System property AUTHENTICATION" );
            }
        if ( ST.isEmpty( VIA ) )
            {
            err.println( "Missing JNLP/System property VIA" );
            }
        }

    /**
     * Get preferences from registry
     */
    @SuppressWarnings( { "NestedAssignment" } )
    public static void getConfigFromRegistry()
        {
        // get object for storing preferences for MyClass
        Preferences userPrefs = Preferences.userRoot()
                .node( "/com/mindprod/replicator/" + UNIQUE_PROJECT_NAME );
        if ( !( PREFS_EXIST = userPrefs.getBoolean( "PREFS_EXIST", false ) ) )
            {
            // no prefs exist yet, so use defaults.
            return;
            }
        // PROJECT_NAME UNIQUE_PROJECT_NAME, WEBSITE_ZIP_URL, AUTHENTICATION are
        // not considered preferences. The user cannot change them.
        // configurable properties default to JNLP values if can't be found in
        // registry.
        USERID = userPrefs.get( "USERID", USERID );
        PASSWORD = userPrefs.get( "PASSWORD", PASSWORD );
        RECEIVER_BASE_DIR =
                userPrefs.get( "RECEIVER_BASE_DIR", RECEIVER_BASE_DIR );
        RECEIVER_ZIP_STAGING_DIR =
                userPrefs.get( "RECEIVER_ZIP_STAGING_DIR",
                        RECEIVER_ZIP_STAGING_DIR );
        LAN_ZIP_URL = userPrefs.get( "LAN_ZIP_URL", LAN_ZIP_URL );
        // RECEIVER_ZIP_URL is selected from LAN_ZIP_URL or WEBSITE_ZIP_URL
        // later.
        if ( ConfigForReceiver.viaCode.isKeepZipsConfigurable() )
            {
            KEEP_ZIPS = userPrefs.getBoolean( "KEEP_ZIPS", KEEP_ZIPS );
            }
        if ( ConfigForReceiver.viaCode.isUnpackZipsConfigurable() )
            {
            UNPACK_ZIPS = userPrefs.getBoolean( "UNPACK_ZIPS", UNPACK_ZIPS );
            }
        }

    /**
     * Get default values for properties from the JNLP file which show up as system properties.
     */
    @SuppressWarnings( { "NestedAssignment" } )
    public static void getJNLPConfig( Properties properties )
        {
        // Get a list of all the system properties and their values
        // Ideally put there by JNLP file.
        PROJECT_NAME = properties.getProperty( "PROJECT_NAME" );
        UNIQUE_PROJECT_NAME = properties.getProperty( "UNIQUE_PROJECT_NAME" );
        SUGGESTED_RECEIVER_BASE_DIR = properties
                .getProperty( "SUGGESTED_RECEIVER_BASE_DIR" );
        RECEIVER_BASE_DIR = SUGGESTED_RECEIVER_BASE_DIR;
        // may be overridden later from registry prefs
        SUGGESTED_RECEIVER_ZIP_STAGING_DIR = properties
                .getProperty( "SUGGESTED_RECEIVER_ZIP_STAGING_DIR" );
        RECEIVER_ZIP_STAGING_DIR = SUGGESTED_RECEIVER_ZIP_STAGING_DIR;
        WEBSITE_ZIP_URL = properties.getProperty( "WEBSITE_ZIP_URL" );
        SUGGESTED_LAN_ZIP_URL = properties.getProperty( "SUGGESTED_LAN_ZIP_URL" );
        LAN_ZIP_URL = SUGGESTED_LAN_ZIP_URL;
        // may be overridden later from registry prefs
        KEEP_ZIPS = properties.getProperty( "KEEP_ZIPS", "false" )
                .equals( "true" );
        // may be overridden later from registry prefs
        UNPACK_ZIPS =
                properties.getProperty( "UNPACK_ZIPS", "true" ).equals( "true" );
        // may be overridden later from registry prefs
        AUTHENTICATION = properties.getProperty( "AUTHENTICATION", "none" );
        DEBUGGING = properties.getProperty( "DEBUGGING", "false" )
                .equals( "true" );
        VIA = properties.getProperty( "VIA", "website" );
        verifyJNLPPropertiesAllSpecified();
        trimProperties();
        // do VIA last so that properties will be ready for VIA constructors.
        viaCode = ViaForReceiver.valueOfAlias( VIA );
        }

    /**
     * save current preference in registry.
     */
    public static void saveConfigInRegistry()
        {
        try
            {
            // get object for storing preferences for MyClass
            // We don't persist all parms. Some we always get fresh from the
            // JNLP
            // e.g. DEBUG, VIA, WEBSITE_URL.
            // UNIQUE_PROJECT_NAME will typically have a value like com.mindprod.replicator
            // or biz.SMEAR.GUAI-SMEAR
            Preferences userPrefs = Preferences.userRoot()
                    .node( "/com/mindprod/replicator/" + UNIQUE_PROJECT_NAME );
            userPrefs.putBoolean( "PREFS_EXIST", PREFS_EXIST );
            userPrefs.put( "USERID", USERID );
            userPrefs.put( "PASSWORD", PASSWORD );
            userPrefs.put( "RECEIVER_BASE_DIR", RECEIVER_BASE_DIR );
            userPrefs.put( "RECEIVER_ZIP_STAGING_DIR",
                    RECEIVER_ZIP_STAGING_DIR );
            userPrefs.put( "LAN_ZIP_URL", LAN_ZIP_URL );
            if ( ConfigForReceiver.viaCode.isKeepZipsConfigurable() )
                {
                userPrefs.put( "KEEP_ZIPS", KEEP_ZIPS ? "true" : "false" );
                }
            if ( ConfigForReceiver.viaCode.isUnpackZipsConfigurable() )
                {
                userPrefs.put( "UNPACK_ZIPS", UNPACK_ZIPS ? "true" : "false" );
                }
            userPrefs.flush();
            }
        catch ( BackingStoreException e )
            {
            Replicator.fatal( "Could not save preferences in registry."
                              + "\n"
                              + e.getMessage() );
            }
        }
    } // end PersistConfigForReceiver.java