public async Task DeleteChatRoomUserAsync(ChatRoomUser cru){
var query = ParseObject.GetQuery ("ChatRoomUser").WhereEqualTo ("userId", cru.userID).WhereEqualTo ("chatroomId", cru.chatRoomID);
IEnumerable<ParseObject> poList = await query.FindAsync ();
foreach (ParseObject po in poList) {
await po.DeleteAsync ();
}
}
protected void CreateChatRooms()
{
chatroomsAdapter = new ChatRoomsAdapter(this);
var chatRoomsListView = FindViewById <ListView> (Resource.Id.chatroomsListView);
chatRoomsListView.Adapter = chatroomsAdapter;
chatRoomsListView.ItemClick += (object sender, AdapterView.ItemClickEventArgs e) => {
ChatRoom currChatRoom = chatroomsAdapter.GetChatRoomAt(e.Position);
var intent = new Intent(this, typeof(ChatRoomActivity));
intent.PutExtra("chatroom", currChatRoom.webID);
StartActivity(intent);
};
chatRoomsListView.ItemLongClick += async(object sender, AdapterView.ItemLongClickEventArgs e) => {
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.SetTitle("Do you want to delete this chatroom?");
alert.SetPositiveButton("Yes", (senderAlert, args) => {
ChatRoom currChatRoom = chatroomsAdapter.GetChatRoomAt(e.Position);
ParsePush.UnsubscribeAsync(currChatRoom.webID);
ChatRoomUser cru = DatabaseAccessors.ChatRoomDatabaseAccessor.DeleteChatRoomUser(DatabaseAccessors.CurrentUser().webID, currChatRoom.webID);
DatabaseAccessors.ChatRoomDatabaseAccessor.DeleteChatRoom(currChatRoom.webID);
ParseChatRoomDatabase pcrd = new ParseChatRoomDatabase();
pcrd.DeleteChatRoomUserAsync(cru);
Console.WriteLine("ERASED");
chatroomsAdapter.NotifyDataSetChanged();
});
alert.SetNegativeButton("No", (senderAlert, args) => {
});
alert.Show();
};
}
ParseObject ToParseObject(ChatRoomUser cru)
{
var po = new ParseObject ("ChatRoomUser");
po ["userId"] = cru.userID;
po ["chatroomId"] = cru.chatRoomID;
return po;
}
public ChatRoomUser DeleteChatRoomUser(string userId, string chatroomId)
{
lock (chatroomUserLocker) {
ChatRoomUser cru = chatroomUserDatabase.Table <ChatRoomUser> ().FirstOrDefault(x => x.userID == userId && x.chatRoomID == chatroomId);
chatroomUserDatabase.Delete <ChatRoomUser> (cru.ID);
return(cru);
}
}
static ChatRoomUser FromParseObjectChatRoomUser(ParseObject po)
{
var t = new ChatRoomUser();
t.userID = (string)po ["userId"];
t.chatRoomID = (string)po ["chatroomId"];
return(t);
}
ParseObject ToParseObject(ChatRoomUser cru)
{
var po = new ParseObject("ChatRoomUser");
po ["userId"] = cru.userID;
po ["chatroomId"] = cru.chatRoomID;
return(po);
}
public async Task DeleteChatRoomUserAsync(ChatRoomUser cru)
{
var query = ParseObject.GetQuery("ChatRoomUser").WhereEqualTo("userId", cru.userID).WhereEqualTo("chatroomId", cru.chatRoomID);
IEnumerable <ParseObject> poList = await query.FindAsync();
foreach (ParseObject po in poList)
{
await po.DeleteAsync();
}
}
public void SaveChatRoomUsers(List <User> users, ChatRoom chatroom)
{
lock (chatroomUserLocker) {
foreach (User user in users)
{
ChatRoomUser cru = new ChatRoomUser();
cru.chatRoomID = chatroom.webID;
cru.userID = user.webID;
chatroomUserDatabase.Insert(cru);
}
}
}
public void SaveChatRoomUsers(List<User> users, ChatRoom chatroom)
{
lock (chatroomUserLocker) {
foreach (User user in users) {
ChatRoomUser cru = new ChatRoomUser ();
cru.chatRoomID = chatroom.webID;
cru.userID = user.webID;
chatroomUserDatabase.Insert (cru);
}
}
}
public async Task SaveChatRoomUsersAsync(ChatRoomUser cru){
ParseObject po = ToParseObject (cru);
await po.SaveAsync ();
}
static ChatRoomUser FromParseObjectChatRoomUser(ParseObject po){
var t = new ChatRoomUser ();
t.userID = (string)po ["userId"];
t.chatRoomID = (string)po ["chatroomId"];
return t;
}
public async Task GetAndSyncChatRoomsAsync()
{
var query = ParseObject.GetQuery("ChatRoomUser").WhereEqualTo("userId", ParseUser.CurrentUser.ObjectId).Select("chatroomId");
IEnumerable <ParseObject> chatRoomIds = await query.FindAsync();
List <ParseObject> results = new List <ParseObject> ();
foreach (ParseObject crpo in chatRoomIds)
{
var currCRUQuery = ParseObject.GetQuery("ChatRoomUser").WhereEqualTo("chatroomId", crpo ["chatroomId"]);
foreach (ParseObject cruPO in await currCRUQuery.FindAsync())
{
results.Add(cruPO);
}
}
List <ChatRoomUser> crusToAdd = new List <ChatRoomUser> ();
List <String> crToAdd = new List <String> ();
List <String> usersToAdd = new List <String> ();
foreach (var cruPO in results)
{
ChatRoomUser cru = FromParseObjectChatRoomUser(cruPO);
if (DatabaseAccessors.ChatRoomDatabaseAccessor.ExistsChatRoomUser(cru.chatRoomID, cru.userID) == false)
{
crusToAdd.Add(cru);
}
if (DatabaseAccessors.ChatRoomDatabaseAccessor.ExistsChatRoom(cru.chatRoomID) == false && crToAdd.Contains(cru.chatRoomID) == false)
{
crToAdd.Add(cru.chatRoomID);
}
if (DatabaseAccessors.UserDatabaseAccessor.ExistsUser(cru.userID) == false && usersToAdd.Contains(cru.userID) == false)
{
usersToAdd.Add(cru.userID);
}
}
foreach (string userId in usersToAdd)
{
User newUser = new User();
var userQuery = ParseObject.GetQuery("UserInformation").WhereEqualTo("userId", userId);
ParseObject userPO = await userQuery.FirstAsync();
newUser.name = (string)userPO ["fullName"];
newUser.webID = userId;
DatabaseAccessors.UserDatabaseAccessor.SaveUser(newUser);
}
foreach (string crid in crToAdd)
{
ChatRoom currChatRoom = new ChatRoom();
currChatRoom.webID = crid;
DatabaseAccessors.ChatRoomDatabaseAccessor.SaveChatRoom(currChatRoom);
}
foreach (ChatRoomUser cru in crusToAdd)
{
User currUser = DatabaseAccessors.UserDatabaseAccessor.GetUser(cru.userID);
List <User> currUserAsList = new List <User> ();
currUserAsList.Add(currUser);
ChatRoom chatroom = DatabaseAccessors.ChatRoomDatabaseAccessor.GetChatRoom(cru.chatRoomID);
DatabaseAccessors.ChatRoomDatabaseAccessor.SaveChatRoomUsers(currUserAsList, chatroom);
}
}
public async Task SaveChatRoomUsersAsync(ChatRoomUser cru)
{
ParseObject po = ToParseObject(cru);
await po.SaveAsync();
}