public async Task <OfflineSongInfo?> GetSongByFilePathAsync(string path)
{
OfflineSongInfo?output = null;
//TODO: If text cannot be read, the problem is here vvv
using (StreamReader sr = new StreamReader(infoFilePath, false))
{
LUint totalLines;
if (!TryGetTotalLines(sr, out totalLines))
{
return(null);
}
for (LUint i = 0; i < totalLines; i++)
{
string songLine = await sr.ReadLineAsync();
if (SongCollectionFormatter.GetFilePath(songLine) == path)
{
output = new OfflineSongInfo(SongCollectionFormatter.DeserializeString(songLine).Value, i);
break;
}
else if (i == totalLines - 1)
{
//Last index
output = null;
}
}
}
return(output);
}
/// <summary>
///
/// </summary>
/// <param name="input"></param>
/// <returns>Song.Null if cannot find a song</returns>
public async Task <OfflineSongInfo?> GetSongByTitleAsync(string inputTitle)
{
OfflineSongInfo?off;
//TODO: If text cannot be read, the problem is here vvv
using (StreamReader sr = new StreamReader(infoFilePath, false))
{
LUint totalLines;
if (!TryGetTotalLines(sr, out totalLines))
{
return(null);
}
#if !TRAINING
string minDistanceObjStr = null;
LUint minDistance = LUint.MaxValue;
LUint objTimesPlayed = 0;
LUint lineNum = 0;
for (LUint i = 0; i < totalLines; i++)
{
string songLine = await sr.ReadLineAsync();
string songTitle = SongCollectionFormatter.GetSongTitle(songLine);
LUint distance = diffService.DifferenceScore(inputTitle, songTitle);
if (distance < minDistance)
{
minDistanceObjStr = songLine;
objTimesPlayed = SongCollectionFormatter.GetTimesPlayed(songLine);
lineNum = i;
if (distance == 0)
{
break;
}
}
else if (distance == minDistance)
{
LUint songTimesPlayed = SongCollectionFormatter.GetTimesPlayed(songLine);
if (songTimesPlayed > objTimesPlayed)
{
minDistanceObjStr = songLine;
objTimesPlayed = songTimesPlayed;
lineNum = i;
}
}
}
if (minDistanceObjStr is null)
{
off = null;
}
else
{
off = new OfflineSongInfo(SongCollectionFormatter.DeserializeString(minDistanceObjStr).Value, lineNum);
}
#endif
}
return(off);
}
public async Task <OfflineSongInfo?> GetSongByURLAsync(string url)
{
#if DEBUG
LogHelper.Logln("Initializing GetSongByURLAsync(url) in Song Collection", LogType.Debug);
#endif
OfflineSongInfo?output = null;
//TODO: If text cannot be read, the problem is here vvv
using (StreamReader sr = new StreamReader(infoFilePath, false))
{
LUint totalLines;
if (!TryGetTotalLines(sr, out totalLines))
{
return(null);
}
#if DEBUG
LogHelper.Logln($"There are a total of {totalLines} of songs.", LogType.Debug);
#endif
for (LUint i = 0; i < totalLines; i++)
{
string songLine = await sr.ReadLineAsync();
string oldUrl = SongCollectionFormatter.GetUrl(songLine);
#if DEBUG
LogHelper.Logln($"oldUrl = {oldUrl}", LogType.Debug);
#endif
if (oldUrl == url)
{
output = new OfflineSongInfo(SongCollectionFormatter.DeserializeString(songLine).Value, i);
break;
}
else if (i == totalLines - 1)
{
//Last index
output = null;
}
}
}
return(output);
}
