/// <summary>
/// Searches the mainIndex for a manga
/// </summary>
/// <param name="term">Search term</param>
/// <param name="top">The number of results to return</param>
/// <returns>Results</returns>
public List <MangaMatch> SearchIndex(string term, int top = 10)
{
if (mainIndex == null)
{
FetchIndex();
}
term = term.ToLower();
Heap <MangaMatch> heap = new Heap <MangaMatch>((a, b) => a.CompareTo(b));
for (int i = 0; i < mainIndex.manga.Length; i++)
{
MangaAddress a = mainIndex.manga[i];
float score = 1f - Math.Min(EditDist(a.t.ToLower(), term) / (float)(term.Length + a.t.Length),
EditDist(a.a.ToLower(), term) / (float)(term.Length + a.a.Length));
score = (float)Math.Pow(score, 1 / (1 + a.popWeight));
if (heap.Count < top)
{
heap.Add(new MangaMatch()
{
s = score, index = i
});
}
else if (heap.Peek().s < score)
{
heap.PollAdd(new MangaMatch()
{
s = score, index = i
});
}
}
return(heap.ToList());
}
public void AsyncFetchRecents()
{
if (!api.IsReady)
{
return;
}
if (fetchRecentThread != null)
{
return;
}
fetchRecentThread = new Thread(() => {
Heap <MangaBookmark> readHeap = new Heap <MangaBookmark>((a, b) => a.lastRead.CompareTo(b.lastRead));//Keeps track of last read date
//Find most recently read mangas from bookmakrs
foreach (var item in bookmarks)
{
if (item.Key == "")
{
continue;
}
if (readHeap.Count < NUM_RECENT_FEED_COL)
{
readHeap.Add(item.Value);
}
else if (readHeap.Peek().lastRead < item.Value.lastRead)
{
readHeap.PollAdd(item.Value);
}
}
int i = 0;
foreach (var item in readHeap.ToArray())
{
if (!api.ContainsManga(item.id))
{
continue;
}
MangaAddress a = api[item.id];
BitmapImage cover = api.FetchCover(item.id);
Application.Current.Dispatcher.Invoke(() => {//Update UI
Grid g = RecentsGrid.Children[i] as Grid;
if (g.Resources.Contains("i"))
{
g.Resources["i"] = a.i;
}
else
{
g.Resources.Add("i", a.i);
}
Image img = g.Children[0] as Image;
img.Source = cover;
((g.Children[1] as Viewbox).Child as TextBlock).Text = a.t + $"\nRead {item.lastRead.ToLocalTime().ToString("MM/dd/yyyy h:mm tt")}";
g.Visibility = Visibility.Visible;
});
i++;
}
fetchRecentThread = null;
});
fetchRecentThread.Start();
}
/// <summary>
/// Processes the index after load to clean up html charectors and calculate popularity weight for search function
/// </summary>
private void ProcessIndex()
{
float minHit = float.MaxValue, maxHit = float.MinValue;
table.Clear();
for (int i = 0; i < mainIndex.manga.Length; i++)
{
MangaAddress a = mainIndex.manga[i];
a.t = System.Net.WebUtility.HtmlDecode(a.t);
a.a = System.Net.WebUtility.HtmlDecode(a.a);
float s = (float)Math.Log(a.h + 1);
minHit = Math.Min(minHit, s);
maxHit = Math.Max(maxHit, s);
mainIndex.manga[i] = a;
table.Add(a.i, i);
}
for (int i = 0; i < mainIndex.manga.Length; i++)
{
mainIndex.manga[i].popWeight = (float)((Math.Log(mainIndex.manga[i].h + 1) - minHit) / (maxHit - minHit));
}
}
