public List <string> statistics()
{
WebOperationContext.Current.OutgoingResponse.Headers.Set("Access-Control-Allow-Origin", "*");
List <string> myList = new List <string>();
myList.Add("UID\tTCount\tMSGCount\tLikesCount");
List <UserDetais> uList = new List <UserDetais>();
foreach (string key in hashUserDetails.Keys)
{
uList.Add((UserDetais)hashUserDetails[key]);
}
UserDetais[] ud = uList.ToArray();
UserDetais temp = new UserDetais();
for (int j = 0; j < ud.Length; j++)
{
for (int i = 0; i < ud.Length - 1; i++)
{
if (ud[i].points < ud[i + 1].points)
{
temp = ud[i];
ud[i] = ud[i + 1];
ud[i + 1] = temp;
}
}
}
for (int i = 0; i < 3 && i < ud.Length; i++)
{
string st = ud[i].userId + "\t" + ud[i].tweetCount + "\t" + ud[i].msgCount + "\t" + ud[i].likeCount;
myList.Add(st);
}
return(myList);
}
public string addMessage(string msg)
{
WebOperationContext.Current.OutgoingResponse.Headers.Set("Access-Control-Allow-Origin", "*");
if (!(hashAuthenticateUsers.ContainsKey(getUserName())))
{
return("you are not authenticated yet");
}
string userId = getUserName();
int tweetId = (int)(hashTweetUsers[userId]);
Tweet tweet = (Tweet)hashTweet[tweetId];
if (tweet.message.Count <= 1001)
{
Message g_idObject = (Message)tweet.message[0];
int g_id = g_idObject.messageId;
g_id++;
Message newObject = new Message(tweetId, g_id, msg, userId, true, 0, 0, false);
tweet.noOfMessages++;
tweet.message.Add(g_id, newObject);
tweet.message.Remove(0);
Message g_Object = new Message(tweetId, g_id, "", "", false, 0, 0, false);
tweet.message.Add(0, g_Object);
UserDetais ud = (UserDetais)hashUserDetails[userId];
ud.msgCount++;
ud.points = ud.points + 3;
writeToFileUserDetails("D:\\Users.xml");
writeToFileTweet("D:\\Tweets.xml");
writeToFileMessage("D:\\Message.xml");
return("message Added successfully with id:" + g_id);
}
else
{
return("Max Message Limit exceeded");
}
}
//this is used to delete a tweet
public string deleteTweet(string tweetId)
{
WebOperationContext.Current.OutgoingResponse.Headers.Set("Access-Control-Allow-Origin", "*");
if (!(hashAuthenticateUsers.ContainsKey(getUserName())))
{
return("you are not authenticated yet");
}
int id = int.Parse(tweetId);
string userId = getUserName();
if (hashTweet.ContainsKey(id))
{
Tweet tweet = (Tweet)hashTweet[id];
if (tweet.userId == userId)
{
hashTweet.Remove(id);
UserDetais ud = (UserDetais)hashUserDetails[userId];
ud.tweetCount--;
ud.points = ud.points - 5;
writeToFileUserDetails("D:\\Users.xml");
writeToFileTweet("D:\\Tweets.xml");
writeToFileMessage("D:\\Message.xml");
return("Deleted Successfully");
}
else
{
return("you are not authenticated to delete the tweet");
}
}
else
{
return("TweetId doesn't exists");
}
}
// create Tweet function
public string createTweet(string tweetName)
{
WebOperationContext.Current.OutgoingResponse.Headers.Set("Access-Control-Allow-Origin", "*");
if (!(hashAuthenticateUsers.ContainsKey(getUserName())))
{
return("you are not authenticated yet");
}
string userId = getUserName();
if (hashTweet.Count <= 50)
{
Tweet obj = (Tweet)hashTweet[0];
int tweetid = obj.tweetId;
tweetid++;
obj.tweetId++;
Tweet newTweet = new Tweet(tweetid, tweetName, 0, userId, false);
Message messageObject = new Message(tweetid, 0, "", "", false, 0, 0, false);
newTweet.noOfMessages++;
newTweet.message.Add(0, messageObject);
hashTweet.Add(tweetid, newTweet);
UserDetais ud = (UserDetais)hashUserDetails[userId];
ud.tweetCount++;
ud.points = ud.points + 5;
writeToFileUserDetails("D:\\Users.xml");
writeToFileTweet("D:\\Tweets.xml");
writeToFileMessage("D:\\Message.xml");
return("tweet created with ID :" + tweetid);
}
return("Exceeds Max Tweet Limit");
}
//this is the function that authenticates the user
public string authenticate(string userId)
{
if (serverStarted)
{
//Tweet tweet1 = new Tweet(0, "", 0, "", false);
//hashTweet.Add(0, tweet1);
//writeToFileTweet("F:\\Tweets.xml");
readFromFile();
serverStarted = false;
}
if (isValid(userId.ToLower()))
{
if (!hashAuthenticateUsers.ContainsKey(userId.ToLower()))
{
if (hashAuthenticateUsers.ContainsKey(userId))
{
return("Already a user logged on from the remote system,Please Logout and then login again");
}
hashAuthenticateUsers[userId.ToLower()] = true;
if (!hashUserDetails.ContainsKey(userId))
{
hashUserDetails[userId] = new UserDetais(userId, 0, 0, 0, 0);
}
hashTweetUsers[userId.ToLower()] = null;
WebOperationContext.Current.OutgoingResponse.Headers.Set("Access-Control-Allow-Origin", "*");
return("authenticated");
}
}
return("not authenticated");
}
// Delete a Message
public string deleteMessage(string msgId)
{
WebOperationContext.Current.OutgoingResponse.Headers.Set("Access-Control-Allow-Origin", "*");
if (!(hashAuthenticateUsers.ContainsKey(getUserName())))
{
return("you are not authenticated yet");
}
string userId = getUserName();
int tweetId = (int)(hashTweetUsers[userId]);
Tweet tweet = (Tweet)hashTweet[tweetId];
int id = int.Parse(msgId);
int msg_count = tweet.noOfMessages;
if (tweet.message.ContainsKey(id))
{
Message msg = (Message)tweet.message[id];
if (msg.userId == userId)
{
tweet.message.Remove(id);
UserDetais ud = (UserDetais)hashUserDetails[userId];
ud.msgCount--;
ud.points = ud.points - 3;
tweet.noOfMessages--;
for (int i = 0; i < msg_count; i++)
{
foreach (int key in tweet.message.Keys)
{
Message msg1 = (Message)tweet.message[key];
if (msg1.replyTo == id)
{
tweet.message.Remove(msg1.messageId);
ud = (UserDetais)hashUserDetails[msg1.userId];
ud.msgCount--;
ud.points = ud.points - 3;
tweet.noOfMessages--;
break;
}
}
}
writeToFileUserDetails("D:\\Users.xml");
writeToFileTweet("D:\\Tweets.xml");
writeToFileMessage("D:\\Message.xml");
return("Message successfully Deleted");
}
else
{
return("you are not autherized to delete the message");
}
}
return("Message Id doesn't Exists");
}
//reply to a Message
public string replyToMessage(string msgId, string msg)
{
WebOperationContext.Current.OutgoingResponse.Headers.Set("Access-Control-Allow-Origin", "*");
if (!(hashAuthenticateUsers.ContainsKey(getUserName())))
{
return("you are not authenticated yet");
}
string userId = getUserName();
int tweetId = (int)(hashTweetUsers[userId]);
Tweet tweet = (Tweet)hashTweet[tweetId];
int id = int.Parse(msgId);
if (tweet.message.ContainsKey(id))
{
Message msgObject = (Message)tweet.message[id];
if (msgObject.isReply)
{
if (tweet.message.Count <= 1001)
{
Message g_idObject = (Message)tweet.message[0];
int g_id = g_idObject.messageId;
g_id++;
Message newObject = new Message(tweetId, g_id, msg, userId, false, id, 0, false);
tweet.message.Add(g_id, newObject);
tweet.noOfMessages++;
tweet.message.Remove(0);
Message g_Object = new Message(tweetId, g_id, "", "", false, 0, 0, false);
tweet.message.Add(0, g_Object);
UserDetais ud = (UserDetais)hashUserDetails[userId];
ud.msgCount++;
ud.points = ud.points + 3;
writeToFileUserDetails("D:\\Users.xml");
writeToFileTweet("D:\\Tweets.xml");
writeToFileMessage("D:\\Message.xml");
return("reply Added successfully to id:" + id);
}
else
{
return("Max Message Limit exceeded");
}
}
else
{
return("you cannot reply to this because it is a reply");
}
}
return("Id doesn't Exists");
}
public void writeToFileUserDetails(string fileName)
{
FileStream writer = new FileStream(fileName, FileMode.Create);
List <UserDetais> myList = new List <UserDetais>();
foreach (string key in hashUserDetails.Keys)
{
UserDetais user = (UserDetais)hashUserDetails[key];
myList.Add(user);
}
DataContractSerializer ser =
new DataContractSerializer(typeof(List <UserDetais>));
DataContractJsonSerializer ser1 = new DataContractJsonSerializer(typeof(List <UserDetais>));
ser.WriteObject(writer, myList);
writer.Close();
}
//Like message
public string likeMessage(string msgId)
{
WebOperationContext.Current.OutgoingResponse.Headers.Set("Access-Control-Allow-Origin", "*");
string userId = getUserName();
int tweetId = (int)(hashTweetUsers[userId]);
Tweet tweet = (Tweet)hashTweet[tweetId];
int id = int.Parse(msgId);
List <string> myList = new List <string>();
Message messageObject = (Message)tweet.message[id];
myList = messageObject.userList;
string[] users = myList.ToArray();
for (int i = 0; i < users.Length; i++)
{
if (users[i] == userId)
{
return("The user Already Liked the message");
}
}
//IEnumerator ie = myList.GetEnumerator();
//while (ie.MoveNext())
//{
// if (ie.ToString() == userId)
// {
// return "The user Already Liked the message";
// }
//}
UserDetais ud = (UserDetais)hashUserDetails[userId];
ud.likeCount++;
ud.points = ud.points + 1;
myList.Add(userId);
messageObject.userList = myList;
messageObject.likes++;
//tweet.message.Remove(id);
//tweet.message.Add(id, messageObject);
writeToFileUserDetails("D:\\Users.xml");
writeToFileTweet("D:\\Tweets.xml");
writeToFileMessage("D:\\Message.xml");
return("Message Successfully Liked");
}
//Reading from file
public void readFromFile()
{
//Console.WriteLine("Deserializing an instance of the object.");
FileStream fs;
try
{
fs = new FileStream("D:\\Tweets.xml", FileMode.Open);
//FileStream fs1 = new FileStream("object.json", FileMode.Open);
XmlDictionaryReader reader =
XmlDictionaryReader.CreateTextReader(fs, new XmlDictionaryReaderQuotas());
//JsonReaderWriterFactory reader1 =
// JsonReaderWriterFactory.CreateJsonReader(fs1, new XmlDictionaryReaderQuotas());
List <Tweet> myList = new List <Tweet>();
DataContractSerializer ser = new DataContractSerializer(typeof(List <Tweet>));
//DataContractJsonSerializer ser1 = new DataContractJsonSerializer(typeof(List<Tweet>));
// Deserialize the data and read it from the instance.
List <Tweet> deserializedTweet =
(List <Tweet>)ser.ReadObject(reader);
//hashTweet.Add(deserializedTweet.tweetId, deserializedTweet);
//IEnumerator ie = deserializedTweet.GetEnumerator();
Tweet[] tweets = deserializedTweet.ToArray();
for (int i = 0; i < tweets.Length; i++)
{
//Tweet tweet = (Tweet)ie;
Tweet newTweet = new Tweet(tweets[i].tweetId, tweets[i].tweetName, tweets[i].noOfMessages, tweets[i].userId, tweets[i].isOffensive);
if (tweets[i].tweetName == "")
{
hashTweet.Add(0, newTweet);
continue;
}
hashTweet.Add(tweets[i].tweetId, newTweet);
}
reader.Close();
fs.Close();
}
catch (FileNotFoundException)
{
fs = new FileStream("D:\\Tweets.xml", FileMode.Create);
Tweet newObject = new Tweet(0, "", 0, "", false);
List <Tweet> myList = new List <Tweet>();
myList.Add(newObject);
DataContractSerializer ser =
new DataContractSerializer(typeof(List <Tweet>));
DataContractJsonSerializer ser1 = new DataContractJsonSerializer(typeof(List <Tweet>));
ser.WriteObject(fs, myList);
hashTweet.Add(0, newObject);
fs.Close();
}
FileStream fs_msg;
try
{
// To read Messages
fs_msg = new FileStream("D:\\Message.xml", FileMode.Open);
if (fs_msg.Length != 0)
{
XmlDictionaryReader reader_msg =
XmlDictionaryReader.CreateTextReader(fs_msg, new XmlDictionaryReaderQuotas());
DataContractSerializer ser_msg = new DataContractSerializer(typeof(List <Message>));
//DataContractJsonSerializer ser1 = new DataContractJsonSerializer(typeof(List<Tweet>));
//List<Message>
List <Message> deserializedMessage =
(List <Message>)ser_msg.ReadObject(reader_msg);
Message[] message = deserializedMessage.ToArray();
for (int i = 0; i < message.Length; i++)
{
Message msg = new Message(message[i].tweetId, message[i].messageId, message[i].message, message[i].userId, message[i].isReply, message[i].replyTo, message[i].likes, message[i].isOffensive);
Tweet tweet = (Tweet)hashTweet[message[i].tweetId];
if (message[i].userId == "")
{
tweet.message.Add(0, msg);
continue;
}
string[] users = message[i].userList.ToArray();
for (int j = 0; j < users.Length; j++)
{
msg.userList.Add(users[j]);
}
tweet.message.Add(message[i].messageId, msg);
}
//FileStream fs1 = new FileStream("object.json", FileMode.Open);
fs_msg.Close();
reader_msg.Close();
}
}
catch (FileNotFoundException)
{
fs_msg = new FileStream("D:\\Message.xml", FileMode.Create);
fs_msg.Close();
}
FileStream fs_user;
try
{
fs_user = new FileStream("D:\\Users.xml", FileMode.Open);
if (fs_user.Length != 0)
{
XmlDictionaryReader reader_user =
XmlDictionaryReader.CreateTextReader(fs_user, new XmlDictionaryReaderQuotas());
DataContractSerializer ser_user = new DataContractSerializer(typeof(List <UserDetais>));
List <UserDetais> deserializedUsers =
(List <UserDetais>)ser_user.ReadObject(reader_user);
UserDetais[] user = deserializedUsers.ToArray();
for (int i = 0; i < user.Length; i++)
{
UserDetais userObject = new UserDetais(user[i].userId, user[i].tweetCount, user[i].msgCount, user[i].likeCount, user[i].points);
hashUserDetails.Add(user[i].userId, userObject);
}
}
fs_user.Flush();
fs_user.Close();
}
catch (FileNotFoundException)
{
fs_user = new FileStream("D:\\Users.xml", FileMode.Create);
fs_user.Close();
}
//Tweet des = (Tweet)ser1.ReadObject(fs1);
//Console.WriteLine(String.Format("{0} {1} {2} {3} {4}",
//deserializedPerson.tweetId, deserializedPerson.tweetName,
//deserializedPerson.noOfMessages, deserializedPerson.isOffensive, deserializedPerson.userId));
//Console.WriteLine(String.Format("{0} {1}, ID: {2}", des.FirstName, des.LastName, des.ID));
}
