Added MangaDex Api. Updated project structure.

MangaReader.Core/Sources/MangaNato/Metadata/MangaNatoWebCrawler.cs

@@ -0,0 +1,185 @@
+using HtmlAgilityPack;
+using MangaReader.Core.Metadata;
+using System.Text;
+using System.Web;
+
+namespace MangaReader.Core.Sources.MangaNato.Metadata;
+
+public class MangaNatoWebCrawler : MangaWebCrawler
+{
+    public override SourceManga GetManga(string url)
+    {
+        HtmlDocument document = GetHtmlDocument(url);
+        MangaNatoMangaDocument node = new(document);
+
+        SourceManga manga = new()
+        {
+            Title = node.TitleNode?.InnerText ?? string.Empty,
+            AlternateTitles = GetAlternateTitles(node.AlternateTitlesNode),
+            Authors = GetAuthors(node.AuthorsNode),
+            Status = GetStatus(node.StatusNode),
+            Genres = GetGenres(node.GenresNode),
+            UpdateDate = GetUpdateDate(node.UpdateDateNode),
+            RatingPercent = GetRatingPercent(node.AverageRatingNode, node.BestRatingNode),
+            Votes = node.VotesNode != null ? int.Parse(node.VotesNode.InnerText) : 0,
+            Views = GetViews(node.ViewsNode),
+            Description = GetTextFromNodes(node.StoryDescriptionTextNodes),
+            Chapters = GetChapters(node.ChapterNodes)
+        };
+
+        return manga;
+    }
+
+    private static List<string> GetAlternateTitles(HtmlNode? node)
+    {
+        if (node == null)
+            return [];
+
+        return [.. node.InnerText.Split(';').Select(x => x.Trim())];
+    }
+
+    private static List<string> GetAuthors(HtmlNode? node)
+    {
+        if (node == null)
+            return [];
+
+        return [.. node.InnerText.Split('-').Select(x => x.Trim())];
+    }
+
+    private static MangaStatus GetStatus(HtmlNode? node)
+    {
+        return node?.InnerText switch
+        {
+            "Ongoing" => MangaStatus.Ongoing,
+            "Completed" => MangaStatus.Complete,
+            _ => MangaStatus.Unknown,
+        };
+    }
+
+    private static List<string> GetGenres(HtmlNode? node)
+    {
+        if (node == null)
+            return [];
+
+        return [.. node.InnerText.Split('-').Select(x => x.Trim())];
+    }
+
+    private static DateTime? GetUpdateDate(HtmlNode? node)
+    {
+        if (node == null)
+            return null;
+
+        List<string> dateAndTime = [.. node.InnerText.Split('-').Select(x => x.Trim())];
+        DateOnly date = DateOnly.Parse(dateAndTime[0]);
+        TimeOnly time = TimeOnly.Parse(dateAndTime[1]);
+
+        return date.ToDateTime(time);
+    }
+
+    private static long GetViews(HtmlNode? node)
+    {
+        if (node == null)
+            return 0;
+
+        string text = node.InnerText;
+
+        if (int.TryParse(text, out int number))
+            return number;
+
+        ReadOnlySpan<char> shortText = text.AsSpan(0, text.Length - 1);
+
+        if (double.TryParse(shortText, out double formattedNumber) == false)
+            return 0;
+
+        char suffix = text[^1];
+        long multiplier = GetMultiplier(suffix);
+
+        return (int)(formattedNumber * multiplier);
+    }
+
+    private static long GetMultiplier(char c)
+    {
+        return c switch
+        {
+            'K' => 1_000,
+            'M' => 1_000_000,
+            'B' => 1_000_000_000,
+            'T' => 1_000_000_000_000,
+            _ => 0,
+        };
+    }
+
+    private static int GetRatingPercent(HtmlNode? averageNode, HtmlNode? bestNode)
+    {
+        if (averageNode == null || bestNode == null)
+            return 0;
+
+        double average = Convert.ToDouble(averageNode.InnerText);
+        double best = Convert.ToDouble(bestNode.InnerText);
+
+        return (int)Math.Round(average / best * 100);
+    }
+
+    private static List<SourceMangaChapter> GetChapters(HtmlNodeCollection? chapterNodes)
+    {
+        List<SourceMangaChapter> chapters = [];
+
+        if (chapterNodes == null)
+            return chapters;
+
+        foreach (var node in chapterNodes)
+        {
+            HtmlNode? chapterNameNode = node.SelectSingleNode(".//a[contains(@class, 'chapter-name')]");
+            HtmlNode? chapterViewNode = node.SelectSingleNode(".//span[contains(@class, 'chapter-view')]");
+            HtmlNode? chapterTimeNode = node.SelectSingleNode(".//span[contains(@class, 'chapter-time')]");
+
+            SourceMangaChapter chapter = new()
+            {
+                Number = GetChapterNumber(chapterNameNode),
+                Name = chapterNameNode?.InnerText ?? string.Empty,
+                Url = chapterNameNode?.Attributes["href"].Value ?? string.Empty,
+                Views = GetViews(chapterViewNode),
+                UploadDate = chapterTimeNode != null ? DateTime.Parse(chapterTimeNode.Attributes["title"].Value) : null
+            };
+
+            chapters.Add(chapter);
+        }
+
+        return chapters;
+    }
+
+    private static float GetChapterNumber(HtmlNode? chapterNameNode)
+    {
+        if (chapterNameNode == null)
+            return 0;
+
+        string url = chapterNameNode.Attributes["href"].Value;
+        int index = url.IndexOf("/chapter-");
+
+        if (index == -1)
+            return 0;
+
+        string chapterNumber = url[(index + "/chapter-".Length)..];
+
+        return float.Parse(chapterNumber);
+    }
+
+    private static string GetTextFromNodes(List<HtmlNode> nodes)
+    {
+        StringBuilder stringBuilder = new();
+
+        foreach (HtmlNode node in nodes)
+        {
+            if (node.Name == "br")
+            {
+                stringBuilder.AppendLine();
+            }
+            else
+            {
+                stringBuilder.Append(HttpUtility.HtmlDecode(node.InnerText).Replace("\r\n", "").Trim());
+            }
+        }
+
+        return stringBuilder.ToString();
+    }
+}