public static async Task <bool> SendChat(int ReceiverID, String Message)
{
JObject DecodedJson = null;
DateTime Now = DateTime.Now;
String ResponseJson = "";
Dictionary <int, String[]> Data = new Dictionary <int, string[]>
{
{ 0, new String[] { "sender", Utilities.ID.ToString() } },
{ 1, new String[] { "receiver", ReceiverID.ToString() } },
{ 2, new String[] { "message", Message } },
{ 3, new String[] { "time", Now.ToString("yyyy-MM-dd hh:mm:ss") } },
};
try
{
ResponseJson = await ChatModel.Chat(Utilities.PostDataEncoder(Data), "chat/");
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
if (CrossConnectivity.IsSupported && CrossConnectivity.Current.IsConnected)
{
DecodedJson = JObject.Parse(ResponseJson);
}
else
{
DecodedJson = JObject.Parse(@"{ status : false }");
//store the message in local db for upload when there is internet connection
//not implemented yet
await ChatHandler.InsertMessage(Message, Now.ToString("yyyy-MM-dd hh:mm:ss"), true, ReceiverID, MessageType.Text, false, LastServerChatId, Utilities.ID + "-" + ReceiverID);
}
return(Convert.ToBoolean(DecodedJson["status"]));
}
public static async Task <int> GetCountOfNewMessages(int ReceiverId, int LastServerChatID)
{
int Counter = 0;
String ConversationResponseJson = await ChatModel.Chat(Utilities.PostDataEncoder(new Dictionary <int, string[]>
{
{ 0, new String[] { "sender", Utilities.ID.ToString() } },
{ 1, new String[] { "receiver", ReceiverId.ToString() } },
}), "chat/conversations");
var ConversationDecodedJson = JObject.Parse(ConversationResponseJson);
foreach (var Child in ConversationDecodedJson["conversations"])
{
if ((int)Child["id"] > LastServerChatID)
{
Counter++;
}
}
return(Counter);
}
/// <summary>
/// LoadConversationToStack Loads the users conversation
/// </summary>
/// <param name="Stack"> the parent stack</param>
/// <param name="RecepientID"> the ID of the receiver</param>
public static async Task LoadConversationToStack(StackLayout Stack, int RecepientID, bool IsLocalLoaded, Grid ChatControlGrid, int LastID = 0)
{
int LastMessageID = LastID;
JObject ConversationDecodedJson = new JObject();
String ConversationResponseJson = "";
//if false, then local db is empty else info is loaded from local db
if (!IsLocalLoaded)
{
Device.BeginInvokeOnMainThread(delegate { Stack.Children.Clear(); });
System.Diagnostics.Debug.WriteLine("IN IF, Old Last Server " + LastServerChatId);
ConversationResponseJson = await ChatModel.Chat(Utilities.PostDataEncoder(new Dictionary <int, string[]>
{
{ 0, new String[] { "sender", Utilities.ID.ToString() } },
{ 1, new String[] { "receiver", RecepientID.ToString() } },
}), "chat/conversations");
ConversationDecodedJson = JObject.Parse(ConversationResponseJson);
LastMessageID = (int)ConversationDecodedJson["conversations"].Last["id"];
var LastMessageDate = DateTime.Parse(ConversationDecodedJson["conversations"].Last["time"].ToString());
if ((DateTime.Now.Day - LastMessageDate.Day) >= 7)///one week since last chat disabled messaging
{
Device.BeginInvokeOnMainThread(delegate
{
ChatControlGrid.IsVisible = false;
});
}
await Utilities.RunTask(async delegate
{
foreach (var conversation in ConversationDecodedJson["conversations"])
{
await ChatHandler.InsertMessage(conversation["message"].ToString(), conversation["time"].ToString(), (bool)conversation["sent"], RecepientID, MessageType.Text, true, (int)conversation["id"], Utilities.ID.ToString() + "-" + RecepientID);
if (conversation["message"].ToString() == "{Appointment Accepted, Default Message}")
{
var ChildStack = new Grid {
HorizontalOptions = LayoutOptions.FillAndExpand, Padding = new Thickness(10, 2, 10, 2)
};
ChildStack.Children.Add(new Label
{
Text = conversation["message"].ToString().Replace(", Default Message", "").Replace("{", "").Replace("}", ""),
BackgroundColor = (Color)App.Current.Resources["_MedAppBlack"],
TextColor = Color.White,
HorizontalTextAlignment = TextAlignment.Center,
VerticalTextAlignment = TextAlignment.Center,
HeightRequest = 30,
HorizontalOptions = LayoutOptions.FillAndExpand
});
Device.BeginInvokeOnMainThread(() =>
{
Stack.Children.Add(ChildStack);
ControlTagger <String> .SetTag(Stack, conversation["id"].ToString());
});
}
else
{
DateTime MessageTime = DateTime.Parse(conversation["time"].ToString());
String MessageTimeString = "";
if (MessageTime.Day != DateTime.Now.Day && MessageTime.Month == DateTime.Now.Month)
{
MessageTimeString = MessageTime.ToString("");
}
Device.BeginInvokeOnMainThread(() =>
{
Stack.Children.Add(SingleMessageTemplate.CreateMessage01((Convert.ToBoolean(conversation["sent"]) ? 1 : 0), conversation["message"].ToString(), Utilities.GetValidatedTime(MessageTime, ChatSectionType.Chat)));
ControlTagger <String> .SetTag(Stack, conversation["id"].ToString());
});
}
}
});
}
///Update chat in Background
while (ListenForNewConversation)
{
ConversationResponseJson = await ChatModel.Chat(Utilities.PostDataEncoder(new Dictionary <int, string[]>
{
{ 0, new String[] { "sender", Utilities.ID.ToString() } },
{ 1, new String[] { "receiver", RecepientID.ToString() } },
}), "chat/conversations");
ConversationDecodedJson = JObject.Parse(ConversationResponseJson);
if (LastMessageID < (int)ConversationDecodedJson["conversations"].Last["id"])
{
await Utilities.RunTask(async delegate
{
foreach (var conversation in ConversationDecodedJson["conversations"])
{
if ((int)conversation["id"] > LastMessageID)
{
LastServerChatId = (int)conversation["id"];
///save updates locally
await ChatHandler.InsertMessage(conversation["message"].ToString(), conversation["time"].ToString(), (bool)conversation["sent"], RecepientID, MessageType.Text, true, (int)conversation["id"], Utilities.ID + "-" + RecepientID);
if (conversation["message"].ToString() == "{Appointment Accepted, Default Message}")
{
var ChildStack = new Grid {
HorizontalOptions = LayoutOptions.FillAndExpand, Padding = new Thickness(10, 2, 10, 2)
};
ChildStack.Children.Add(new Label
{
Text = conversation["message"].ToString().Replace(", Default Message", "").Replace("{", "").Replace("}", ""),
BackgroundColor = (Color)App.Current.Resources["_MedAppBlack"],
TextColor = Color.White,
HorizontalTextAlignment = TextAlignment.Center,
VerticalTextAlignment = TextAlignment.Center,
HeightRequest = 30,
HorizontalOptions = LayoutOptions.FillAndExpand
});
Device.BeginInvokeOnMainThread(() =>
{
Stack.Children.Add(ChildStack);
ControlTagger <int> .SetTag(Stack, (int)conversation["id"]);
});
}
else
{
DateTime MessageTime = DateTime.Parse(conversation["time"].ToString());
String MessageTimeString = "";
if (MessageTime.Day != DateTime.Now.Day && MessageTime.Month == DateTime.Now.Month)
{
MessageTimeString = MessageTime.ToString("");
}
Device.BeginInvokeOnMainThread(() =>
{
Stack.Children.Add(SingleMessageTemplate.CreateMessage01((Convert.ToBoolean(conversation["sent"]) ? 1 : 0), conversation["message"].ToString(), Utilities.GetValidatedTime(MessageTime, ChatSectionType.Chat)));
ControlTagger <int> .SetTag(Stack, (int)conversation["id"]);
});
}
}
}
});
LastMessageID = (int)ConversationDecodedJson["conversations"].Last["id"];
}
}
}
/// <summary>
/// ChatsListToStack loads all the users conversation onto the specified stacklayout
/// </summary>
/// <param name="Stack"></param>
/// <param name="Con"></param>
public static async Task ChatsListToStack(StackLayout Stack, ContentPage Con, bool IsLocalLoaded = false)
{
if (!IsLocalLoaded)
{
Device.BeginInvokeOnMainThread(() => { Stack.Children.Clear(); });
}
do
{
System.Diagnostics.Debug.WriteLine("Stack Child COunt" + Stack.Children.Count);
try
{
Dictionary <int, String[]> ChatData = new Dictionary <int, string[]>();
Dictionary <int, String[]> Data = new Dictionary <int, string[]>
{
{ 0, new String[] { "sender", Utilities.ID.ToString() } },
};
String ChatListResponseJson = await ChatModel.Chat(Utilities.PostDataEncoder(Data), "chat/get-list");
var ChatListDecodedJson = JObject.Parse(ChatListResponseJson);
foreach (var Contact in ChatListDecodedJson["contacts"])
{
ChatData.Add((int)Contact["info"]["id"], new string[5]); // key = receivers id
ChatData[(int)Contact["info"]["id"]][0] = Contact["info"]["name"].ToString(); //index 0 = name
String ConversationResponseJson = await ChatModel.Chat(Utilities.PostDataEncoder(new Dictionary <int, string[]>
{
{ 0, new String[] { "sender", Utilities.ID.ToString() } },
{ 1, new String[] { "receiver", Contact["info"]["id"].ToString() } },
}), "chat/conversations");
//System.Diagnostics.Debug.WriteLine(ConversationResponseJson);
var ConversationDecodedJson = JObject.Parse(ConversationResponseJson);
//System.Diagnostics.Debug.WriteLine("JSON" + ConversationDecodedJson["conversations"].Last);
//System.Diagnostics.Debug.WriteLine("JSON" + ConversationDecodedJson["conversations"].Last["message"]);
if (ConversationDecodedJson["conversations"].Last["message"].ToString() == "{Appointment Accepted, Default Message}")
{
ChatData[(int)Contact["info"]["id"]][1] = ConversationDecodedJson["conversations"].Last["message"].ToString();//index 1 = message
}
else
{
ChatData[(int)Contact["info"]["id"]][1] = ((bool)ConversationDecodedJson["conversations"].Last["sent"] ? "You: " : "");
ChatData[(int)Contact["info"]["id"]][1] += ConversationDecodedJson["conversations"].Last["message"].ToString();
}
//System.Diagnostics.Debug.WriteLine("DICT" + ChatData[(int)Contact["info"]["id"]][1]);
ChatData[(int)Contact["info"]["id"]][2] = ConversationDecodedJson["conversations"].Last["time"].ToString(); // index 2 = date
try
{
ChatData[(int)Contact["info"]["id"]][3] = Contact["info"]["medic_id"].ToString(); //index 3 = medic id
}
catch
{
///exception thrown and caught as the current receiver doesnt have a medic id since he/she is a normal user(patient)
ChatData[(int)Contact["info"]["id"]][3] = "0";
}
//last conversation id, index 4 = id of the last message for the current convo on the online db
ChatData[(int)Contact["info"]["id"]][4] = ConversationDecodedJson["conversations"].Last["id"].ToString();
///if local receiver doesnt exist, add to local db
int Result = await ReceiverHandler.CheckReceiver((int)Contact["info"]["id"]);
if (Result == 0)
{
await ReceiverHandler.NewReceiver(ChatData[(int)Contact["info"]["id"]][0], (int)Contact["info"]["id"], "", Convert.ToInt32(ChatData[(int)Contact["info"]["id"]][3]));
}
}
await Utilities.RunTask(delegate
{
if (ChatData.Count > 0)
{
foreach (int key in ChatData.Keys)
{
if (Stack.Children.Count >= 4)
{
continue;
}
System.Diagnostics.Debug.WriteLine(" Count " + ChatData.Count + " [0] " + ChatData[key][0] + " [1] " + ChatData[key][1] + " [2] " + ChatData[key][2] + " [3] " + ChatData[key][3] + " [4] " + ChatData[key][4]);
Device.BeginInvokeOnMainThread(async() =>
{
StackLayout ChildStack;
if (Stack.Children.Count > 0 && Stack.Children[0].GetType() == typeof(Label))
{
///clear message stack if default 'no chat message is shown'
Stack.Children.Clear();
}
if (Stack.Children.Count > 0)
{
///IsNewConversation is true by default, the value is changed if the conversation exists on the chat list stack
bool IsNewConversation = true;
for (int i = 0; i < Stack.Children.Count; i++)
{
var child = Stack.Children[i];
//if the child is already on stack, recreate that child if different values
String[] ChildStackTag = ControlTagger <String> .GetTag(child).Split('-');
///receiver exists in stack
if (key == Convert.ToInt32(ChildStackTag[1]))
{
System.Diagnostics.Debug.WriteLine("Is Old Convo :- False");
int NewMessageCount = await GetCountOfNewMessages(key, Convert.ToInt32(ChildStackTag[2]));
System.Diagnostics.Debug.WriteLine("Child in Stack With Tag [" + ChildStackTag[0] + "-" + ChildStackTag[1] + "-" + ChildStackTag[2] + "-" + ChildStackTag[3] + "] Tag [" + Utilities.ID + "-" + key + "-" + ChatData[key][4] + "-" + NewMessageCount + "] Last Server ID " + Convert.ToInt32(ChatData[key][4]));
//receiver
if ((Convert.ToInt32(ChildStackTag[2]) < Convert.ToInt32(ChatData[key][4])))
{
/// create notification to show mew message
List <Object> ListForNotification = new List <object>();
if (ChatData[key][1].Equals("{Appointment Accepted, Default Message}"))
{
ListForNotification.Add(ChatData[key][1].Replace(", Default Message", "").Replace("{", "").Replace("}", ""));//index 0 message
}
else
{
//ListForNotification.Add(ChatData[key][1]);//index 0 message
ListForNotification.Add("" + NewMessageCount + " new messages from " + ChatData[key][0]);//index 0 message
}
ListForNotification.Add(ChatData[key][2]); //index 1 time
ListForNotification.Add(NotificationType.Chat); //index 2 notificationtype
ListForNotification.Add(key); // index 3 id
NotificationPage.NotificationData.Add(NotificationPage.NotificationData.Count, ListForNotification);
Stack.Children.RemoveAt(i);
ChildStack = ListAllChatTemplate.CreateNewStackType01(ChatData[key][0], "", ChatData[key][1], Utilities.GetValidatedTime(DateTime.Parse(ChatData[key][2]), ChatSectionType.ChatList), Con, key, NewMessageCount, Convert.ToInt32(ChatData[key][3]));
//ChildStack = new StackLayout { BackgroundColor = Color.Tomato };
ControlTagger <String> .SetTag(ChildStack, Utilities.ID + "-" + key + "-" + ChatData[key][4] + "-" + NewMessageCount);
//Stack.Children.Add(ChildStack);
Stack.Children.Insert(0, ChildStack);
}
///IsNewConversation is false as the current key exists in the chat list stack
IsNewConversation = false;
}
}
System.Diagnostics.Debug.WriteLine("Done, Status :- " + IsNewConversation);
///If IsNewConversation is true, this key is a new conversaton, create new childstack
if (IsNewConversation)
{
///{Appointment Accepted, Default Message} is the default sent message, create different view for it
if (ChatData[key][1].Equals("{Appointment Accepted, Default Message}"))
{
ChatData[key][1] = ChatData[key][1].Replace(", Default Message", "").Replace("{", "").Replace("}", "");
ChildStack = ListAllChatTemplate.CreateNewStackType01(ChatData[key][0], "", ChatData[key][1], Utilities.GetValidatedTime(DateTime.Parse(ChatData[key][2]), ChatSectionType.ChatList), Con, key, 0, Convert.ToInt32(ChatData[key][3]));
ControlTagger <String> .SetTag(ChildStack, Utilities.ID + "-" + key + "-" + ChatData[key][4] + "-" + 0);
Stack.Children.Insert(Stack.Children.Count, ChildStack);
}
else
{
ChildStack = ListAllChatTemplate.CreateNewStackType01(ChatData[key][0], "", ChatData[key][1], Utilities.GetValidatedTime(DateTime.Parse(ChatData[key][2]), ChatSectionType.ChatList), Con, key, 0, Convert.ToInt32(ChatData[key][3]));
ControlTagger <String> .SetTag(ChildStack, Utilities.ID + "-" + key + "-" + ChatData[key][4] + "-" + 0);
Stack.Children.Insert(Stack.Children.Count, ChildStack);
}
}
}
else
{
///{Appointment Accepted, Default Message} is the default sent message, create different view for it
if (ChatData[key][1].Equals("{Appointment Accepted, Default Message}"))
{
/// create notification to show the appointment has been accepted
List <Object> ListForNotification = new List <object>();
ListForNotification.Add(ChatData[key][1].Replace(", Default Message", "").Replace("{", "").Replace("}", "")); //index 0 message
ListForNotification.Add(ChatData[key][2]); //index 1 time
ListForNotification.Add(NotificationType.Appointment); //index 2 notificationtype
ListForNotification.Add(key); // index 3 id
NotificationPage.NotificationData.Add(NotificationPage.NotificationData.Count, ListForNotification);
System.Diagnostics.Debug.WriteLine("Adding");
ChatData[key][1] = ChatData[key][1].Replace(", Default Message", "").Replace("{", "").Replace("}", "");
ChildStack = ListAllChatTemplate.CreateNewStackType01(ChatData[key][0], "", ChatData[key][1], Utilities.GetValidatedTime(DateTime.Parse(ChatData[key][2]), ChatSectionType.ChatList), Con, key, 0, Convert.ToInt32(ChatData[key][3]));
ControlTagger <String> .SetTag(ChildStack, Utilities.ID + "-" + key + "-" + ChatData[key][4] + "-" + 0);
Stack.Children.Insert(Stack.Children.Count, ChildStack);
}
else
{
ChildStack = ListAllChatTemplate.CreateNewStackType01(ChatData[key][0], "", ChatData[key][1], Utilities.GetValidatedTime(DateTime.Parse(ChatData[key][2]), ChatSectionType.ChatList), Con, key, 0, Convert.ToInt32(ChatData[key][3]));
ControlTagger <String> .SetTag(ChildStack, Utilities.ID + "-" + key + "-" + ChatData[key][4] + "-" + 0);
Stack.Children.Insert(Stack.Children.Count, ChildStack);
}
}
});
}
}
else
{
Device.BeginInvokeOnMainThread(() =>
{
if (Stack.Children.Count == 0)
{
Stack.Children.Add(new Label {
Text = (!Utilities.IsMedic) ? "Chats will appear after booking an appointment." : "Chats will appear after accepting an appointment.", Style = App.Current.Resources["_EmptyLabelTemplate"] as Style
});
}
});
}
});
}
catch (Exception ex)
{
await App.Current.MainPage.DisplayAlert("Alert", ex.StackTrace, "Ok");
}
} while (ListenForChatListUpdate);
}