Added support for bittorrent

2026-03-28 17:36:25 +02:00
parent 5acde17a53
commit 4f7036ca27
45 changed files with 3383 additions and 225 deletions
@@ -0,0 +1,136 @@
+using FluentAssertions;
+using PageManager.Api.Services;
+using PageManager.Api.Tests.Helpers;
+
+namespace PageManager.Api.Tests.Unit.Services;
+
+public class MetadataWriterServiceTests
+{
+    // ── ParseOpfPath ──────────────────────────────────────────────────────────
+
+    [Fact]
+    public void ParseOpfPath_ReturnsFullPath()
+    {
+        var xml = """
+            <?xml version="1.0" encoding="UTF-8"?>
+            <container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container">
+              <rootfiles>
+                <rootfile full-path="OEBPS/content.opf" media-type="application/oebps-package+xml"/>
+              </rootfiles>
+            </container>
+            """;
+
+        MetadataWriterService.ParseOpfPath(xml).Should().Be("OEBPS/content.opf");
+    }
+
+    // ── ModifyOpfXml ──────────────────────────────────────────────────────────
+
+    private const string MinimalOpf = """
+        <?xml version="1.0" encoding="utf-8"?>
+        <package xmlns="http://www.idpf.org/2007/opf" version="2.0" unique-identifier="uid">
+          <metadata xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:opf="http://www.idpf.org/2007/opf">
+            <dc:title>Old Title</dc:title>
+            <dc:creator>Old Author</dc:creator>
+            <dc:language>en</dc:language>
+          </metadata>
+          <manifest/>
+          <spine/>
+        </package>
+        """;
+
+    [Fact]
+    public void ModifyOpfXml_UpdatesTitle()
+    {
+        var book   = BookFactory.Create(title: "Dune", year: 1965).WithAuthors((1, "Frank Herbert"));
+        var result = MetadataWriterService.ModifyOpfXml(MinimalOpf, book);
+        result.Should().Contain("<dc:title>Dune</dc:title>");
+    }
+
+    [Fact]
+    public void ModifyOpfXml_UpdatesCreator()
+    {
+        var book   = BookFactory.Create(title: "Dune").WithAuthors((1, "Frank Herbert"));
+        var result = MetadataWriterService.ModifyOpfXml(MinimalOpf, book);
+        result.Should().Contain("Frank Herbert");
+    }
+
+    [Fact]
+    public void ModifyOpfXml_AddsDescription_WhenPresent()
+    {
+        var book   = BookFactory.Create(title: "Dune", description: "A sci-fi epic.").WithAuthors((1, "Frank Herbert"));
+        var result = MetadataWriterService.ModifyOpfXml(MinimalOpf, book);
+        result.Should().Contain("A sci-fi epic.");
+    }
+
+    [Fact]
+    public void ModifyOpfXml_SkipsDescription_WhenNull()
+    {
+        var book   = BookFactory.Create(title: "Dune", description: null).WithAuthors((1, "Frank Herbert"));
+        var result = MetadataWriterService.ModifyOpfXml(MinimalOpf, book);
+        result.Should().NotContain("dc:description");
+    }
+
+    [Fact]
+    public void ModifyOpfXml_AddsIsbnIdentifier_WhenPresent()
+    {
+        var book   = BookFactory.Create(title: "Dune", isbn: "9780441013593").WithAuthors((1, "Frank Herbert"));
+        var result = MetadataWriterService.ModifyOpfXml(MinimalOpf, book);
+        result.Should().Contain("9780441013593");
+        result.Should().Contain("ISBN");
+    }
+
+    [Fact]
+    public void ModifyOpfXml_AddsDate_WhenYearPresent()
+    {
+        var book   = BookFactory.Create(title: "Dune", year: 1965).WithAuthors((1, "Frank Herbert"));
+        var result = MetadataWriterService.ModifyOpfXml(MinimalOpf, book);
+        result.Should().Contain("1965");
+    }
+
+    [Fact]
+    public void ModifyOpfXml_PreservesExistingXmlStructure()
+    {
+        var book   = BookFactory.Create(title: "Dune").WithAuthors((1, "Frank Herbert"));
+        var result = MetadataWriterService.ModifyOpfXml(MinimalOpf, book);
+
+        // Manifest and spine should still be present
+        result.Should().Contain("manifest");
+        result.Should().Contain("spine");
+        result.Should().Contain("dc:language");
+    }
+
+    [Fact]
+    public void ModifyOpfXml_WithMultipleAuthors_UsesPrimaryAuthorForCreator()
+    {
+        var book   = BookFactory.Create(title: "Good Omens")
+                                .WithAuthors((1, "Terry Pratchett"), (2, "Neil Gaiman"));
+        var result = MetadataWriterService.ModifyOpfXml(MinimalOpf, book);
+        result.Should().Contain("Terry Pratchett");
+    }
+
+    [Fact]
+    public void ModifyOpfXml_WithNoAuthors_DoesNotAddCreator()
+    {
+        var book   = BookFactory.Create(title: "Anonymous");
+        // No authors added
+        var result = MetadataWriterService.ModifyOpfXml(MinimalOpf, book);
+        // Should not crash and should not add empty creator
+        result.Should().NotContain("<dc:creator />");
+    }
+
+    [Fact]
+    public void ModifyOpfXml_UpdatesExistingIsbnIdentifier_RatherThanAdding()
+    {
+        var opfWithIsbn = MinimalOpf.Replace(
+            "<dc:language>en</dc:language>",
+            "<dc:language>en</dc:language>\n    <dc:identifier opf:scheme=\"ISBN\">OLD-ISBN</dc:identifier>");
+
+        var book   = BookFactory.Create(title: "Dune", isbn: "9780441013593").WithAuthors((1, "Frank Herbert"));
+        var result = MetadataWriterService.ModifyOpfXml(opfWithIsbn, book);
+
+        result.Should().Contain("9780441013593");
+        result.Should().NotContain("OLD-ISBN");
+        // Should not have two ISBN identifiers
+        result.Split("ISBN").Length.Should().BeLessThanOrEqualTo(3); // "ISBN" appears in scheme + value
+    }
+}