/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * 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.android.providers.downloads;

import android.app.NotificationManager;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.database.Cursor;
import android.provider.Downloads;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.util.Config;
import android.util.Log;

import java.io.File;
import java.util.List;

/**
 * Receives system broadcasts (boot, network connectivity)
 */
public class DownloadReceiver extends BroadcastReceiver {

    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) {
            if (Constants.LOGVV) {
                Log.v(Constants.TAG, "Receiver onBoot");
            }
            context.startService(new Intent(context, DownloadService.class));
        } else if (intent.getAction().equals(ConnectivityManager.CONNECTIVITY_ACTION)) {
            if (Constants.LOGVV) {
                Log.v(Constants.TAG, "Receiver onConnectivity");
            }
            NetworkInfo info = (NetworkInfo)
                    intent.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);
            if (info != null && info.isConnected()) {
                context.startService(new Intent(context, DownloadService.class));
            }
        } else if (intent.getAction().equals(Constants.ACTION_RETRY)) {
            if (Constants.LOGVV) {
                Log.v(Constants.TAG, "Receiver retry");
            }
            context.startService(new Intent(context, DownloadService.class));
        } else if (intent.getAction().equals(Constants.ACTION_OPEN)
                || intent.getAction().equals(Constants.ACTION_LIST)) {
            if (Constants.LOGVV) {
                if (intent.getAction().equals(Constants.ACTION_OPEN)) {
                    Log.v(Constants.TAG, "Receiver open for " + intent.getData());
                } else {
                    Log.v(Constants.TAG, "Receiver list for " + intent.getData());
                }
            }
            Cursor cursor = context.getContentResolver().query(
                    intent.getData(), null, null, null, null);
            if (cursor != null) {
                if (cursor.moveToFirst()) {
                    int statusColumn = cursor.getColumnIndexOrThrow(Downloads.STATUS);
                    int status = cursor.getInt(statusColumn);
                    int visibilityColumn = cursor.getColumnIndexOrThrow(Downloads.VISIBILITY);
                    int visibility = cursor.getInt(visibilityColumn);
                    if (Downloads.isStatusCompleted(status)
                            && visibility == Downloads.VISIBILITY_VISIBLE_NOTIFY_COMPLETED) {
                        ContentValues values = new ContentValues();
                        values.put(Downloads.VISIBILITY, Downloads.VISIBILITY_VISIBLE);
                        context.getContentResolver().update(intent.getData(), values, null, null);
                    }

                    if (intent.getAction().equals(Constants.ACTION_OPEN)) {
                        int filenameColumn = cursor.getColumnIndexOrThrow(Downloads._DATA);
                        int mimetypeColumn = cursor.getColumnIndexOrThrow(Downloads.MIMETYPE);
                        String filename = cursor.getString(filenameColumn);
                        String mimetype = cursor.getString(mimetypeColumn);
                        Uri path = Uri.parse(filename);
                        // If there is no scheme, then it must be a file
                        if (path.getScheme() == null) {
                            path = Uri.fromFile(new File(filename));
                        }
                        Intent activityIntent = new Intent(Intent.ACTION_VIEW);
                        activityIntent.setDataAndType(path, mimetype);
                        activityIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        try {
                            context.startActivity(activityIntent);
                        } catch (ActivityNotFoundException ex) {
                            if (Config.LOGD) {
                                Log.d(Constants.TAG, "no activity for " + mimetype, ex);
                            }
                            // nothing anyone can do about this, but we're in a clean state,
                            //     swallow the exception entirely
                        }
                    } else {
                        int packageColumn =
                                cursor.getColumnIndexOrThrow(Downloads.NOTIFICATION_PACKAGE);
                        int classColumn =
                                cursor.getColumnIndexOrThrow(Downloads.NOTIFICATION_CLASS);
                        String pckg = cursor.getString(packageColumn);
                        String clazz = cursor.getString(classColumn);
                        if (pckg != null && clazz != null) {
                            Intent appIntent = new Intent(Downloads.NOTIFICATION_CLICKED_ACTION);
                            appIntent.setClassName(pckg, clazz);
                            if (intent.getBooleanExtra("multiple", true)) {
                                appIntent.setData(Downloads.CONTENT_URI);
                            } else {
                                appIntent.setData(intent.getData());
                            }
                            context.sendBroadcast(appIntent);
                        }
                    }
                }
                cursor.close();
            }
            NotificationManager notMgr = (NotificationManager) context
                    .getSystemService(Context.NOTIFICATION_SERVICE);
            if (notMgr != null) {
                notMgr.cancel((int) ContentUris.parseId(intent.getData()));
            }
        } else if (intent.getAction().equals(Constants.ACTION_HIDE)) {
            if (Constants.LOGVV) {
                Log.v(Constants.TAG, "Receiver hide for " + intent.getData());
            }
            Cursor cursor = context.getContentResolver().query(
                    intent.getData(), null, null, null, null);
            if (cursor != null) {
                if (cursor.moveToFirst()) {
                    int statusColumn = cursor.getColumnIndexOrThrow(Downloads.STATUS);
                    int status = cursor.getInt(statusColumn);
                    int visibilityColumn = cursor.getColumnIndexOrThrow(Downloads.VISIBILITY);
                    int visibility = cursor.getInt(visibilityColumn);
                    if (Downloads.isStatusCompleted(status)
                            && visibility == Downloads.VISIBILITY_VISIBLE_NOTIFY_COMPLETED) {
                        ContentValues values = new ContentValues();
                        values.put(Downloads.VISIBILITY, Downloads.VISIBILITY_VISIBLE);
                        context.getContentResolver().update(intent.getData(), values, null, null);
                    }
                }
                cursor.close();
            }
        }
    }
}