// The entry method to the twitter program
public static void Go(string userFilePath, string tweetFilePath)
{
// Validate user file path
if (!File.Exists(userFilePath))
{
Console.WriteLine("Error: Invalid user file path: {0}", userFilePath);
}
// Validate user file name and extension
if (!Path.GetFileName(userFilePath).ToLower().Equals("user.txt"))
{
Console.WriteLine("Error: Invalid file name, the expected first argument file name is user.txt and you supplied {0}", Path.GetFileName(userFilePath));
}
// Validate user file path
if (!File.Exists(tweetFilePath))
{
Console.WriteLine("Error: Invalid tweet file path: {0}", tweetFilePath);
}
// Validate user file name and extension
if (!Path.GetFileName(tweetFilePath).ToLower().Equals("tweet.txt"))
{
Console.WriteLine("Error: Invalid file name, the expected second argument file name is tweet.txt and you supplied {0}", Path.GetFileName(tweetFilePath));
}
try
{
// Process and display the tweets
TwitterFeed.DisplayTweets(userFilePath, tweetFilePath);
}
catch (Exception)
{
throw;
}
}
/// <summary>DisplayTweets is a method in the TwitterFeed class.
/// <para>This manipulates file outputs, process, and print the tweets.</para>
/// </summary>
/// <param name="userFilePath">Used as a user file path string, for a file to be read and processed.</param>
/// <param name="tweetFilePath">Used as a tweet file path string, for a file to be read and processed.</param>
/// <returns>Returns void</returns>
///
public static void DisplayTweets(string userFilePath, string tweetFilePath)
{
// Instantiate the TwitterFeed class
TwitterFeed objTwitterFeed = new TwitterFeed();
// Read the file list from "user.txt"
ArrayList userData = objTwitterFeed.UserReader(userFilePath);
// Declare a user list variable to store cleaned user list
userList = new ArrayList();
// Initiate the followers list
followersList = new SortedList<string, string>();
// Loop through the data from the user file to process it
for (int i = 0; i < userData.Count; i++)
{
// Split the user data read from the file by the word "follows"
string[] userSplitted = userData[i].ToString().Split(new [] {"follows"}, StringSplitOptions.None);
// Check if user is not on the list and if not, add the user to the list
if (!userList.Contains(userSplitted[0].Trim()))
{
userList.Add(userSplitted[0].Trim());
}
// Split the user followers by comma
string[] followersSplitted = userSplitted[1].Trim().Split(',');
// Loop through splited user followers list
for (int j = 0; j < followersSplitted.Length; j++)
{
// Check if a follower is also on the twitter user list, if not add the follower as a user
if (!userList.Contains(followersSplitted[j].Trim()))
{
userList.Add(followersSplitted[j].Trim());
}
// Fill in the followers list
followersList.Add(userSplitted[0].Trim() + "_" + i + "_" + j, followersSplitted[j].Trim());
}
}
// Sort the user list alphabetically
userList.Sort();
// Loop through the users and print each user's tweets plus the user's followers tweets
for (int i = 0; i < userList.Count; i++)
{
// Get the tweets array list
ArrayList tweetData = objTwitterFeed.TweetReader(tweetFilePath);
// Print user name
Console.WriteLine(userList[i].ToString());
// Loop through all tweets and display the ones relevant to the user
for (int j = 0; j < tweetData.Count; j++)
{
// A bollean variable to check whether a tweet has been printed
bool printed = false;
// Seperate the tweet by greater than sign to get the user and the tweet
string[] tweetSplitted = tweetData[j].ToString().Trim().Split('>');
// Check if current user has a tweet
if (tweetSplitted[0].Trim().Equals(userList[i].ToString()))
{
Console.WriteLine("\t@{0}: {1}",userList[i].ToString().Trim(), tweetSplitted[1].Trim());
printed = true;
}
// Check if the user's followers have tweets to print
else
{
// Current read tweet has not been printed
if (!printed)
{
// If you need to find the string associated with the user in followers list
foreach (KeyValuePair<string, string> follower in followersList)
{
// Split the followersList key and get the user name
string[] keySplitted = follower.Key.Split('_');
// Check if the current user has a follower with the tweet to print and if yes, print it
if (keySplitted[0].Equals(userList[i].ToString()) && follower.Value.Equals(tweetSplitted[0].Trim()))
{
Console.WriteLine("\t@{0}: {1}", tweetSplitted[0].Trim(), tweetSplitted[1].Trim());
break;
}
}
}
}
}
}
}
