/**
 * Copyright 2014 Microsoft Open Technologies Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *	 http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.microsoftopentechnologies.intellij.actions;

import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.interopbridges.tools.windowsazure.WindowsAzureInvalidProjectOperationException;
import com.interopbridges.tools.windowsazure.WindowsAzureProjectManager;
import com.microsoftopentechnologies.azurecommons.wacommonutil.FileUtil;
import com.microsoftopentechnologies.intellij.AzurePlugin;
import com.microsoftopentechnologies.intellij.util.PluginUtil;
import com.microsoftopentechnologies.intellij.util.WAHelper;

import java.io.*;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

import static com.microsoftopentechnologies.intellij.ui.messages.AzureBundle.message;

/**
 * This class resets the Azure Emulator.
 */
public class ResetEmulatorAction extends AnAction {
    private static final int BUFF_SIZE = 1024;

    public void actionPerformed(AnActionEvent event) {
        try {
            String strKitLoc = WAHelper.getTemplateFile(message("pWizStarterKit"));
            StringBuilder output = new StringBuilder();
            ZipFile zipFile = new ZipFile(strKitLoc);

            // copy elevate.vbs to temp location
            String tmpPath = System.getProperty("java.io.tmpdir");
            FileUtil.copyFileFromZip(new File(strKitLoc), "%proj%/.templates/emulatorTools/.elevate.vbs",
                    new File(String.format("%s%s%s", tmpPath, File.separator, ".elevate.vbs")));

            @SuppressWarnings("rawtypes")
            Enumeration entries = zipFile.entries();
            while (entries.hasMoreElements()) {
                ZipEntry entry = (ZipEntry) entries.nextElement();
                if (entry.getName().toLowerCase().indexOf(message("rstEmCmd")) != -1) {
                    InputStream in = zipFile.getInputStream(entry);
                    Reader reader = new InputStreamReader(in);
                    char[] buf = new char[BUFF_SIZE];
                    int length = reader.read(buf, 0, buf.length);
                    while (length > 0) {
                        output.append(buf, 0, length);
                        length = reader.read(buf, 0, buf.length);
                    }
                    break;
                }
            }
            zipFile.close();
            WindowsAzureProjectManager.resetEmulator(output.toString());
        } catch (WindowsAzureInvalidProjectOperationException e) {
            PluginUtil.displayErrorDialogAndLog(message("rstEmltrErrTtl"), message("rstEmuErrMsg"), e);
        } catch (IOException e1) {
            AzurePlugin.log(message("ioErrMsg"), e1);
        }
    }
}