/**

 * Copyright (c) 2010 Symbian Foundation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Symbian Foundation - initial contribution.

 * Contributors:

 * Description:

 * Overview:

 * Details:

 * Platforms/Drives/Compatibility:

 * Assumptions/Requirement/Pre-requisites:

 * Failures and causes:

 */

package org.symbian.tools.tmw.previewer.http.handlers;

import java.io.ByteArrayInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.UnsupportedEncodingException;

import java.util.Map;

import java.util.Properties;

import org.eclipse.core.resources.IProject;

import org.eclipse.core.runtime.CoreException;

import org.eclipse.core.runtime.IPath;

import org.json.simple.JSONObject;

import org.symbian.tools.tmw.core.TMWCore;

import org.symbian.tools.tmw.core.projects.ITMWProject;

import org.symbian.tools.tmw.previewer.PreviewerPlugin;

import org.symbian.tools.tmw.previewer.preview.ProjectPreferencesManager;

public class PreferencesResourceProvider implements IResourceProvider {

    public String[] getPaths() {

        return new String[] { "preview/preferences.js" };

    }

    public InputStream getResourceStream(IProject project, IPath resource, Map<String, String[]> parameters,

        Properties projectPreferences = ProjectPreferencesManager.getProjectProperties(project);

        if (!projectPreferences.containsKey("__SYM_NOKIA_EMULATOR_DEVICE")) {

            final ITMWProject p = TMWCore.create(project);

            if (p != null) {

            }

        }

        String js = getJS(projectPreferences);

        try {

            return new ByteArrayInputStream(js.getBytes("UTF-8"));

        } catch (UnsupportedEncodingException e) {

            PreviewerPlugin.log(e);

        }

        return null;

    }

    @SuppressWarnings("unchecked")

    private String getJS(Properties projectPreferences) {

        StringBuilder builder = new StringBuilder("NOKIA.emulator.prefs = ");

        JSONObject jsonObject = new JSONObject();

        jsonObject.putAll(projectPreferences);

        builder.append(jsonObject.toJSONString()).append(";\n");

        return builder.toString();

    }

    public void post(IProject project, IPath resource, Map<String, String[]> parameterMap, JSONObject object,

        String key = (String) object.get("key");

        Object value = object.get("value");

        if (value != null) {

            value = value.toString();

        }

        Properties projectPreferences = ProjectPreferencesManager.getProjectProperties(project);

        String oldValue = (String) projectPreferences.get(key);

        if (oldValue != value && (oldValue == null || !oldValue.equals(value))) {

            projectPreferences.put(key, value);

            ProjectPreferencesManager.setProjectProperties(project, projectPreferences);

        }

    }

}