/*
 * Copyright 2012 Google 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.google.android.apps.mytracks.util;

import com.google.android.maps.mytracks.R;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;

/**
 * Utilities for creating intents.
 * 
 * @author Jimmy Shih
 */
public class IntentUtils {

  public static final String TEXT_PLAIN_TYPE = "text/plain";
  private static final String TWITTER_PACKAGE_NAME = "com.twitter.android";

  private IntentUtils() {}

  /**
   * Creates an intent with {@link Intent#FLAG_ACTIVITY_CLEAR_TOP} and
   * {@link Intent#FLAG_ACTIVITY_NEW_TASK}.
   * 
   * @param context the context
   * @param cls the class
   */
  public static final Intent newIntent(Context context, Class<?> cls) {
    return new Intent(context, cls).addFlags(
        Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
  }

  /**
   * Creates an intent to share a url with a sharing app.
   * 
   * @param context the context
   * @param url the url
   * @param packageName the sharing app package name
   * @param className the sharing app class name
   */
  public static final Intent newShareUrlIntent(
      Context context, String url, String packageName, String className) {
    return new Intent(Intent.ACTION_SEND)
        .addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT | Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP)
        .putExtra(Intent.EXTRA_SUBJECT, context.getString(R.string.share_track_subject))
        .putExtra(Intent.EXTRA_TEXT, TWITTER_PACKAGE_NAME.equals(packageName) 
            ? url : context.getString(R.string.share_track_url_body_format, url))
        .setComponent(new ComponentName(packageName, className))
        .setType(TEXT_PLAIN_TYPE);
  }
}