public bool CutOff(LyricSegment segment, LyricSegment nextSegment)
{
bool match = false;
if (segment.CutOffCount != 0)
match = true;
segment.CutOffCount++;
if (segment.CutOffCount % 5 == 0 && segment.CutOffCount < 20)
{
segment.End += 0.5;
nextSegment.Start += 0.5;
}
else if(segment.CutOffCount >= 25)
{
segment.End = nextSegment.End;
segment.LyricStats.Clear();
segment.LyricUsers.Clear();
segment.CutOffCount = 0;
segment.OnlyMusicCount = 0;
db.Lyrics.Remove(nextSegment);
}
db.SaveChanges();
return match;
}
public ActionResult Create(String title, String artist, String genre, HttpPostedFileBase mp3)
{
//Error checking for input
if(title == "" || artist == "" || genre == "" || mp3 == null)
{
ViewBag.Error = "Please ensure all fields are populated and a file has been selected";
ViewBag.SongTitle = title;
ViewBag.Artist = artist;
ViewBag.Genre = genre;
return View();
}
else if(!mp3.FileName.EndsWith(".mp3"))
{
ViewBag.Error = "At this time only files with a .mp3 file extension may be used";
ViewBag.SongTitle = title;
ViewBag.Artist = artist;
ViewBag.Genre = genre;
return View();
}
IList<Music> sameSongs = db.Music.Where(sl => sl.Title.Equals(title) && sl.Artist.Equals(artist)).ToList();
if (sameSongs.Count() != 0)
{
ViewBag.Error = "This song has already been uploaded";
ViewBag.SongTitle = title;
ViewBag.Artist = artist;
ViewBag.Genre = genre;
return View();
}
//Create music object
Music music = new Music
{
Title = title,
Artist = artist,
Genre = genre,
Complete = false
};
//Add music object to db and save mp3 to listed application directory
music.FilePath = "~/Content/MusicUploads/" + music.Artist + "-" + music.Title + ".mp3";
db.Music.Add(music);
if (mp3 != null)
mp3.SaveAs(Request.PhysicalApplicationPath + "Content\\MusicUploads\\" + music.Artist + "-" + music.Title + ".mp3");
//Calculate mp3 duration
ShellFile f = ShellFile.FromFilePath(Request.PhysicalApplicationPath + "Content\\MusicUploads\\" + music.Artist + "-" + music.Title + ".mp3");
double nanoseconds;
double.TryParse(f.Properties.System.Media.Duration.Value.ToString(), out nanoseconds);
int duration = (int)(nanoseconds * 0.0000001);
//Make sure song can be processed and is at least 10 seconds in length
if (duration < 10)
{
ViewBag.Error = "Song is too short or has a corrupt duration header. Please upload another file";
ViewBag.SongTitle = title;
ViewBag.Artist = artist;
ViewBag.Genre = genre;
return View();
}
//Initialize values for first segment
int segID = 0;
int start = 0;
int end = 5;
int clipLength = 5;
//Create all segments (except possibly last one)
while (end <= duration)
{
LyricSegment newSegment = new LyricSegment();
newSegment.LyricSegmentID = segID;
newSegment.MusicID = music.MusicID;
newSegment.Start = start;
newSegment.End = end;
start += clipLength;
end += clipLength;
//If last segment wont be created, append to end of active segment
if (end > duration)
newSegment.End = duration;
db.Lyrics.Add(newSegment);
segID++;
}
//Save changes to db
db.SaveChanges();
return RedirectToAction("Index");
}
public bool Lyrics(LyricSegment segment, String input, double startTime, UserProfile activeUser)
{
int userID = 0;
TimeSpan now = DateTime.UtcNow - new DateTime(1970, 1, 1);
bool match = false;
//New entry in LyricUser table
LyricsUser userEntry = new LyricsUser();
userEntry.LyricSegmentID = segment.LyricSegmentID;
userEntry.Lyrics = input;
userEntry.UserID = userID;
userEntry.Time = (int)(now.TotalSeconds-startTime);
db.LyricUsers.Add(userEntry);
//Strip out non alphanumeric characters including spaces
Regex rgx = new Regex("[^a-zA-Z0-9]");
String inputMod = rgx.Replace(input, "");
//Get all stat entries corresponding to segment
IList<LyricsStats> lyricStatEntries = segment.LyricStats.ToList();
bool newInput = true; //has the input been submitted before by another user
int maxVotes = 0; //number of votes the top input has recieved
int votes = 0; //number of total votes
LyricsStats topStat = null; //top input
LyricsStats userSub = null;
//Go through all previously submitted inputs
for (int i = 0; i < lyricStatEntries.Count(); i++)
{
String entryMod = rgx.Replace(lyricStatEntries[i].Lyrics, "");
//If the stripped input mathes the stripped previous submission
if(inputMod.Equals(entryMod))
{
lyricStatEntries[i].Votes++; //increase votes for this submission
userSub = lyricStatEntries[i];
newInput = false; //the users submission was already in the table
}
//Is the analyzed input the top submission
if (lyricStatEntries[i].Votes > maxVotes)
{
maxVotes = lyricStatEntries[i].Votes;
topStat= lyricStatEntries[i];
}
votes += lyricStatEntries[i].Votes;
}
//If the user's submission does not already exist, create an entry for it
if (newInput == true)
{
LyricsStats newEntry = new LyricsStats();
newEntry.Lyrics = input;
newEntry.LyricSegmentID = segment.LyricSegmentID;
newEntry.Available = false;
newEntry.Votes = 1;
userSub = newEntry;
db.LyricStats.Add(newEntry);
}
//If the user's submission is already in a table check if the segment is complete
else
{
double voteRatio = (double)(maxVotes)/votes;
if (voteRatio > 0.5 && maxVotes > 9)
{
topStat.LyricSegment.Complete = true;
//If the segment is complete check if the song is complete
songCompletion(topStat.LyricSegment.Music);
}
//Check if user input is in top 5 submissions
List<LyricsStats> topResults = (from p in db.LyricStats where p.LyricSegmentID == segment.LyricSegmentID orderby p.Votes descending select p).Take(5).ToList();
for (int i = 0; i < topResults.Count(); i++)
{
if (topResults.Count() != 0)
{
String entryMod = rgx.Replace(lyricStatEntries[i].Lyrics, "");
if (entryMod.Equals(inputMod))
match = true;
}
}
}
List<UserSegmentVotes> otherVote = db.UserSegmentVotes.Where(us => us.LyricSegmentID == segment.LyricSegmentID).ToList();
if (otherVote.Count() == 0)
{
UserSegmentVotes newEntryUser = new UserSegmentVotes();
newEntryUser.LyricSegmentID = segment.LyricSegmentID;
newEntryUser.LyricsStatsID = userSub.LyricsStatsID;
newEntryUser.UserID = activeUser.UserId;
db.UserSegmentVotes.Add(newEntryUser);
}
else
{
otherVote.First().LyricsStatsID = userSub.LyricsStatsID;
}
//Mark all lyricstats meeting threshold as available to be voted on
for (int i = 0; i < lyricStatEntries.Count(); i++)
{
double statRatio = (double)(lyricStatEntries[i].Votes) / votes;
if (lyricStatEntries[i].Votes > 9 && statRatio > 0.5)
lyricStatEntries[i].Available = true;
else
lyricStatEntries[i].Available = false;
}
db.SaveChanges();
return match;
}
public bool NoLyrics(LyricSegment segment)
{
bool match = false;
if (segment.OnlyMusicCount != 0)
match = true;
segment.OnlyMusicCount++;
if (segment.OnlyMusicCount > 4)
{
segment.Complete = true;
songCompletion(segment.Music);
}
db.SaveChanges();
return match;
}
