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package org.wordpress.android.ui.media.services;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.os.Handler;
import android.os.IBinder;
import org.wordpress.android.WordPress;
import org.wordpress.android.models.MediaUploadState;
import org.xmlrpc.android.ApiHelper;
import java.util.ArrayList;
import java.util.List;
/**
* A service for deleting media files from the media browser.
* Only one file is deleted at a time.
*/
public class MediaDeleteService extends Service {
// time to wait before trying to delete the next file
private static final int DELETE_WAIT_TIME = 1000;
private Context mContext;
private Handler mHandler = new Handler();
private boolean mDeleteInProgress;
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
mContext = this.getApplicationContext();
mDeleteInProgress = false;
}
@Override
public void onStart(Intent intent, int startId) {
mHandler.post(mFetchQueueTask);
}
private Runnable mFetchQueueTask = new Runnable() {
@Override
public void run() {
Cursor cursor = getQueueItem();
try {
if ((cursor == null || cursor.getCount() == 0 || mContext == null) && !mDeleteInProgress) {
MediaDeleteService.this.stopSelf();
return;
} else {
if (mDeleteInProgress) {
mHandler.postDelayed(this, DELETE_WAIT_TIME);
} else {
deleteMediaFile(cursor);
}
}
} finally {
if (cursor != null)
cursor.close();
}
}
};
private Cursor getQueueItem() {
if (WordPress.getCurrentBlog() == null)
return null;
String blogId = String.valueOf(WordPress.getCurrentBlog().getLocalTableBlogId());
return WordPress.wpDB.getMediaDeleteQueueItem(blogId);
}
private void deleteMediaFile(Cursor cursor) {
if (!cursor.moveToFirst())
return;
mDeleteInProgress = true;
final String blogId = cursor.getString((cursor.getColumnIndex("blogId")));
final String mediaId = cursor.getString(cursor.getColumnIndex("mediaId"));
ApiHelper.DeleteMediaTask task = new ApiHelper.DeleteMediaTask(mediaId,
new ApiHelper.GenericCallback() {
@Override
public void onSuccess() {
// only delete them once we get an ok from the server
if (WordPress.getCurrentBlog() != null && mediaId != null) {
WordPress.wpDB.deleteMediaFile(blogId, mediaId);
}
mDeleteInProgress = false;
mHandler.post(mFetchQueueTask);
}
@Override
public void onFailure(ApiHelper.ErrorType errorType, String errorMessage, Throwable throwable) {
// Ideally we would do handle the 401 (unauthorized) and 404 (not found) errors,
// but the XMLRPCExceptions don't seem to give messages when they are thrown.
// Instead we'll just set them as "deleted" so they don't show up in the delete queue.
// Otherwise the service will continuously try to delete an item they can't delete.
WordPress.wpDB.updateMediaUploadState(blogId, mediaId, MediaUploadState.DELETED);
mDeleteInProgress = false;
mHandler.post(mFetchQueueTask);
}
});
List<Object> apiArgs = new ArrayList<Object>();
apiArgs.add(WordPress.getCurrentBlog());
task.execute(apiArgs) ;
mHandler.post(mFetchQueueTask);
}
}
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