public ActionResult GetChatUpdates(FormCollection collection)
{
chats chat = ChatService.GetChatById(Convert.ToInt32(collection["chatId"]));
// Select all messages with that fulfill the requirement -> id > lastId | and belong to the chat that has the id == chatId
List <messages> retMessages = ChatService.GetMessages(chat).Where(x => x.C_ID > Convert.ToInt32(collection["lastId"])).ToList();
int highestId = (from x in retMessages
orderby x.C_ID descending
select x.C_ID).FirstOrDefault();
// Create a new anonymous object with all message info to turn into a json string
var retObj = new
{
id = (from message in retMessages
select message.C_ID).ToList(),
sender = (from message in retMessages
select message.AspNetUsers.NickName).ToList(),
message = (from message in retMessages
select message.message).ToList(),
timeStamp = (from message in retMessages
select message.time_stamp).ToList(),
highest = highestId
};
return(Json(retObj));
}
public ActionResult GetAllMessagesFromChat(FormCollection collection)
{
// Here we get all messeages from the chat with the id chatId
chats chat = ChatService.GetChatById(Convert.ToInt32(collection["chatId"]));
List <messages> messages = ChatService.GetMessages(chat);
// Get highest value
int?highestId = (from x in messages
orderby x.C_ID descending
select x.C_ID).FirstOrDefault();
if (!highestId.HasValue)
{
highestId = 1;
}
// Create an anonymous object to return as a json string
var retObj = new
{
id = (from message in messages
select message.C_ID).ToList(),
sender = (from message in messages
select message.AspNetUsers.NickName).ToList(),
message = (from message in messages
select message.message).ToList(),
timeStamp = (from message in messages
select message.time_stamp).ToList(),
highestId = highestId
};
return(Json(retObj));
}
/* <summary>Gets chat users by ID</summary>
* <param name="chat">Chat model</param>
* <returns>list of chaat users</returns>
* <author>Janus</author>
*/
static public List <AspNetUsers> GetChatUsers(chats chat)
{
var db = new VERK2015_H17Entities1();
var chatUsers = (from x in db.chat_members.Where(y => y.FK_chat_members_chat == chat.C_ID)
select x.AspNetUsers).ToList();
return(chatUsers);
}
/* <summary>Gets messeages by ID</summary>
* <param name="chat">Chat model</param>
* <returns>list of messages</returns>
* <author>Janus</author>
*/
static public List <messages> GetMessages(chats chat)
{
var db = new VERK2015_H17Entities1();
var messages = (from x in db.messages.Where(y => y.FK_messages_chat_id == chat.C_ID)
select x).ToList();
return(messages);
}
/* <summary></summary>
* <param name="ID"></param>
* <returns></returns>
* <author></author>
*/
public static List <chats> SearchChatByName(chats chat)
{
var db = new VERK2015_H17Entities1();
var chatRes = (from x in db.chats.Where(y => y.chat_name.Contains(chat.chat_name))
select x).ToList();
return(chatRes);
}
static public void RenameChat(chats chat)
{
var db = new VERK2015_H17Entities1();
var getChat = (from x in db.chats.Where(y => y.C_ID == chat.C_ID)
select x).SingleOrDefault();
getChat.chat_name = chat.chat_name;
db.SaveChanges();
}
public ActionResult Create(FormCollection fc)
{
// Get both users as AspNetUsers, as required by the CreateChat function in ChatService
AspNetUsers user = UserService.GetUserByEmail(User.Identity.Name);
AspNetUsers friend = UserService.GetUserById(fc["friendId"]);
// Create a chat with the users and we get the new chat returned to us
chats chat = ChatService.CreateChat(user, friend);
// Return the chatId as an Json object
return(Json(new
{
chatId = chat.C_ID
}));
}
public ActionResult Rename(FormCollection fc)
{
chats chat = new chats();
chat.chat_name = fc["newName"];
chat.C_ID = Convert.ToInt32(fc["chatId"]);
try
{
ChatService.RenameChat(chat);
}
catch (Exception)
{
}
return(Json(""));
}
/* <summary>Adds user to chat</summary>
* <param name="chat">The chat we add the user too</param>
* <param name="user">The user we add to the chat</param>
* <returns>nothing</returns>
* <author>Janus</author>
*/
static public void AddChatUsers(chats chat, AspNetUsers user)
{
var db = new VERK2015_H17Entities1();
List <chat_members> allChatMemberEntries = GetAllChatMemberEntries();
bool addUser = (from isMember in allChatMemberEntries
where isMember.FK_chat_members_user == user.Id && isMember.FK_chat_members_chat == chat.C_ID
select false).DefaultIfEmpty(true).Single();
if (addUser)
{
chat_members member = new chat_members();
member.FK_chat_members_chat = chat.C_ID;
member.FK_chat_members_user = user.Id;
db.chat_members.Add(member);
db.SaveChanges();
}
}
public ActionResult GetChatUsers(FormCollection collection)
{
int id = Convert.ToInt32(collection["chatId"]);
chats chat = ChatService.GetChatById(id);
//Get the users belonging to the chat we querried above
List <AspNetUsers> chatUsers = ChatService.GetChatUsers(chat);
// Create a anonymous object and return it as a json string
var retObj = new
{
userId = (from user in chatUsers
select user.Id).ToList(),
userName = (from user in chatUsers
select user.NickName).ToList(),
profileImage = (from user in chatUsers
select user.profile_image).ToList()
};
return(Json(retObj));
}
static public chats CreateChat(AspNetUsers user, AspNetUsers friend)
{
var db = new VERK2015_H17Entities1();
chats newChat = new chats();
newChat.chat_name = friend.NickName;
db.chats.Add(newChat);
// Add User
//public string FK_chat_members_user { get; set; }
//public int FK_chat_members_chat { get; set; }
db.chat_members.Add(new chat_members {
FK_chat_members_user = user.Id, FK_chat_members_chat = newChat.C_ID
});
db.chat_members.Add(new chat_members {
FK_chat_members_user = friend.Id, FK_chat_members_chat = newChat.C_ID
});
db.SaveChanges();
return(newChat);
}
