fix path replacement bug (#677)

CHANGELOG.md

@@ -13,6 +13,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix bug scheduling mid-roll filler with content that contains one chapter
   - No mid-roll filler will be inserted for content with zero or one chapters
 - Fix thread sync bug with `HLS Segmenter` (and `MPEG-TS`) streaming modes
+- Fix path replacement bug when media server path is left blank
 
 ### Added
 - Add automated error reporting via Bugsnag

ErsatzTV.Core.Tests/Emby/EmbyPathReplacementServiceTests.cs

@@ -0,0 +1,271 @@
+using System.Runtime.InteropServices;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Runtime;
+using ErsatzTV.Core.Emby;
+using FluentAssertions;
+using Microsoft.Extensions.Logging;
+using Moq;
+using NUnit.Framework;
+
+namespace ErsatzTV.Core.Tests.Emby;
+
+[TestFixture]
+public class EmbyPathReplacementServiceTests
+{
+    [Test]
+    public async Task EmbyWindows_To_EtvWindows()
+    {
+        var replacements = new List<EmbyPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                EmbyPath = @"C:\Something\Some Shared Folder",
+                LocalPath = @"C:\Something Else\Some Shared Folder",
+                EmbyMediaSource = new EmbyMediaSource { OperatingSystem = "Windows" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetEmbyPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(true);
+
+        var service = new EmbyPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<EmbyPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementEmbyPath(
+            0,
+            @"C:\Something\Some Shared Folder\Some Movie\Some Movie.mkv");
+
+        result.Should().Be(@"C:\Something Else\Some Shared Folder\Some Movie\Some Movie.mkv");
+    }
+
+    [Test]
+    public async Task EmbyWindows_To_EtvLinux()
+    {
+        var replacements = new List<EmbyPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                EmbyPath = @"C:\Something\Some Shared Folder",
+                LocalPath = @"/mnt/something else/Some Shared Folder",
+                EmbyMediaSource = new EmbyMediaSource { OperatingSystem = "Windows" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetEmbyPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(false);
+
+        var service = new EmbyPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<EmbyPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementEmbyPath(
+            0,
+            @"C:\Something\Some Shared Folder\Some Movie\Some Movie.mkv");
+
+        result.Should().Be(@"/mnt/something else/Some Shared Folder/Some Movie/Some Movie.mkv");
+    }
+
+    [Test]
+    public async Task EmbyWindows_To_EtvLinux_UncPath()
+    {
+        var replacements = new List<EmbyPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                EmbyPath = @"\\192.168.1.100\Something\Some Shared Folder",
+                LocalPath = @"/mnt/something else/Some Shared Folder",
+                EmbyMediaSource = new EmbyMediaSource { OperatingSystem = "Windows" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetEmbyPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(false);
+
+        var service = new EmbyPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<EmbyPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementEmbyPath(
+            0,
+            @"\\192.168.1.100\Something\Some Shared Folder\Some Movie\Some Movie.mkv");
+
+        result.Should().Be(@"/mnt/something else/Some Shared Folder/Some Movie/Some Movie.mkv");
+    }
+
+    [Test]
+    public async Task EmbyWindows_To_EtvLinux_UncPathWithTrailingSlash()
+    {
+        var replacements = new List<EmbyPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                EmbyPath = @"\\192.168.1.100\Something\Some Shared Folder\",
+                LocalPath = @"/mnt/something else/Some Shared Folder/",
+                EmbyMediaSource = new EmbyMediaSource { OperatingSystem = "Windows" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetEmbyPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(false);
+
+        var service = new EmbyPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<EmbyPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementEmbyPath(
+            0,
+            @"\\192.168.1.100\Something\Some Shared Folder\Some Movie\Some Movie.mkv");
+
+        result.Should().Be(@"/mnt/something else/Some Shared Folder/Some Movie/Some Movie.mkv");
+    }
+
+    [Test]
+    public async Task EmbyLinux_To_EtvWindows()
+    {
+        var replacements = new List<EmbyPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                EmbyPath = @"/mnt/something/Some Shared Folder",
+                LocalPath = @"C:\Something Else\Some Shared Folder",
+                EmbyMediaSource = new EmbyMediaSource { OperatingSystem = "Linux" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetEmbyPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(true);
+
+        var service = new EmbyPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<EmbyPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementEmbyPath(
+            0,
+            @"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+
+        result.Should().Be(@"C:\Something Else\Some Shared Folder\Some Movie\Some Movie.mkv");
+    }
+
+    [Test]
+    public async Task EmbyLinux_To_EtvLinux()
+    {
+        var replacements = new List<EmbyPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                EmbyPath = @"/mnt/something/Some Shared Folder",
+                LocalPath = @"/mnt/something else/Some Shared Folder",
+                EmbyMediaSource = new EmbyMediaSource { OperatingSystem = "Linux" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetEmbyPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(false);
+
+        var service = new EmbyPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<EmbyPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementEmbyPath(
+            0,
+            @"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+
+        result.Should().Be(@"/mnt/something else/Some Shared Folder/Some Movie/Some Movie.mkv");
+    }
+    
+    [Test]
+    public async Task Should_Not_Throw_For_Null_EmbyPath()
+    {
+        var replacements = new List<EmbyPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                EmbyPath = null,
+                LocalPath = @"/mnt/something else/Some Shared Folder",
+                EmbyMediaSource = new EmbyMediaSource { OperatingSystem = "Linux" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetEmbyPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(false);
+
+        var service = new EmbyPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<EmbyPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementEmbyPath(
+            0,
+            @"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+
+        result.Should().Be(@"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+    }
+    
+    [Test]
+    public async Task Should_Not_Throw_For_Null_LocalPath()
+    {
+        var replacements = new List<EmbyPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                EmbyPath = @"/mnt/something/Some Shared Folder",
+                LocalPath = null,
+                EmbyMediaSource = new EmbyMediaSource { OperatingSystem = "Linux" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetEmbyPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(false);
+
+        var service = new EmbyPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<EmbyPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementEmbyPath(
+            0,
+            @"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+
+        result.Should().Be(@"/Some Movie/Some Movie.mkv");
+    }
+}

ErsatzTV.Core.Tests/Jellyfin/JellyfinPathReplacementServiceTests.cs

@@ -204,4 +204,68 @@ public class JellyfinPathReplacementServiceTests
 
         result.Should().Be(@"/mnt/something else/Some Shared Folder/Some Movie/Some Movie.mkv");
     }
+    
+    [Test]
+    public async Task Should_Not_Throw_For_Null_JellyfinPath()
+    {
+        var replacements = new List<JellyfinPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                JellyfinPath = null,
+                LocalPath = @"/mnt/something else/Some Shared Folder",
+                JellyfinMediaSource = new JellyfinMediaSource { OperatingSystem = "Linux" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetJellyfinPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(false);
+
+        var service = new JellyfinPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<JellyfinPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementJellyfinPath(
+            0,
+            @"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+
+        result.Should().Be(@"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+    }
+    
+    [Test]
+    public async Task Should_Not_Throw_For_Null_LocalPath()
+    {
+        var replacements = new List<JellyfinPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                JellyfinPath = @"/mnt/something/Some Shared Folder",
+                LocalPath = null,
+                JellyfinMediaSource = new JellyfinMediaSource { OperatingSystem = "Linux" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetJellyfinPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(false);
+
+        var service = new JellyfinPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<JellyfinPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementJellyfinPath(
+            0,
+            @"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+
+        result.Should().Be(@"/Some Movie/Some Movie.mkv");
+    }
 }

ErsatzTV.Core.Tests/Plex/PlexPathReplacementServiceTests.cs

@@ -204,4 +204,68 @@ public class PlexPathReplacementServiceTests
 
         result.Should().Be(@"/mnt/something else/Some Shared Folder/Some Movie/Some Movie.mkv");
     }
+    
+    [Test]
+    public async Task Should_Not_Throw_For_Null_PlexPath()
+    {
+        var replacements = new List<PlexPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                PlexPath = null,
+                LocalPath = @"/mnt/something else/Some Shared Folder",
+                PlexMediaSource = new PlexMediaSource { Platform = "Linux" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetPlexPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(false);
+
+        var service = new PlexPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<PlexPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementPlexPath(
+            0,
+            @"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+
+        result.Should().Be(@"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+    }
+    
+    [Test]
+    public async Task Should_Not_Throw_For_Null_LocalPath()
+    {
+        var replacements = new List<PlexPathReplacement>
+        {
+            new()
+            {
+                Id = 1,
+                PlexPath = @"/mnt/something/Some Shared Folder",
+                LocalPath = null,
+                PlexMediaSource = new PlexMediaSource { Platform = "Linux" }
+            }
+        };
+
+        var repo = new Mock<IMediaSourceRepository>();
+        repo.Setup(x => x.GetPlexPathReplacementsByLibraryId(It.IsAny<int>())).Returns(replacements.AsTask());
+
+        var runtime = new Mock<IRuntimeInfo>();
+        runtime.Setup(x => x.IsOSPlatform(OSPlatform.Windows)).Returns(false);
+
+        var service = new PlexPathReplacementService(
+            repo.Object,
+            runtime.Object,
+            new Mock<ILogger<PlexPathReplacementService>>().Object);
+
+        string result = await service.GetReplacementPlexPath(
+            0,
+            @"/mnt/something/Some Shared Folder/Some Movie/Some Movie.mkv");
+
+        result.Should().Be(@"/Some Movie/Some Movie.mkv");
+    }
 }

ErsatzTV.Core/Emby/EmbyPathReplacementService.cs

@@ -40,6 +40,11 @@ public class EmbyPathReplacementService : IEmbyPathReplacementService
             .SingleOrDefault(
                 r =>
                 {
+                    if (string.IsNullOrWhiteSpace(r.EmbyPath))
+                    {
+                        return false;
+                    }
+
                     string separatorChar = IsWindows(r.EmbyMediaSource, path) ? @"\" : @"/";
                     string prefix = r.EmbyPath.EndsWith(separatorChar)
                         ? r.EmbyPath
@@ -47,8 +52,7 @@ public class EmbyPathReplacementService : IEmbyPathReplacementService
                     return path.StartsWith(prefix);
                 });
 
-        return maybeReplacement.Match(
+        foreach (EmbyPathReplacement replacement in maybeReplacement)
-            replacement =>
         {
             string finalPath = path.Replace(replacement.EmbyPath, replacement.LocalPath);
             if (IsWindows(replacement.EmbyMediaSource, path) && !_runtimeInfo.IsOSPlatform(OSPlatform.Windows))
@@ -71,8 +75,9 @@ public class EmbyPathReplacementService : IEmbyPathReplacementService
             }
 
             return finalPath;
-            },
+        }
-            () => path);
+
+        return path;
     }
 
     private static bool IsWindows(EmbyMediaSource embyMediaSource, string path)

ErsatzTV.Core/Jellyfin/JellyfinPathReplacementService.cs

@@ -40,6 +40,11 @@ public class JellyfinPathReplacementService : IJellyfinPathReplacementService
             .SingleOrDefault(
                 r =>
                 {
+                    if (string.IsNullOrWhiteSpace(r.JellyfinPath))
+                    {
+                        return false;
+                    }
+
                     string separatorChar = IsWindows(r.JellyfinMediaSource, path) ? @"\" : @"/";
                     string prefix = r.JellyfinPath.EndsWith(separatorChar)
                         ? r.JellyfinPath
@@ -47,8 +52,7 @@ public class JellyfinPathReplacementService : IJellyfinPathReplacementService
                     return path.StartsWith(prefix);
                 });
 
-        return maybeReplacement.Match(
+        foreach (JellyfinPathReplacement replacement in maybeReplacement)
-            replacement =>
         {
             string finalPath = path.Replace(replacement.JellyfinPath, replacement.LocalPath);
             if (IsWindows(replacement.JellyfinMediaSource, path) &&
@@ -72,8 +76,9 @@ public class JellyfinPathReplacementService : IJellyfinPathReplacementService
             }
 
             return finalPath;
-            },
+        }
-            () => path);
+
+        return path;
     }
 
     private static bool IsWindows(JellyfinMediaSource jellyfinMediaSource, string path)

ErsatzTV.Core/Plex/PlexPathReplacementService.cs

@@ -37,13 +37,17 @@ public class PlexPathReplacementService : IPlexPathReplacementService
             .SingleOrDefault(
                 r =>
                 {
+                    if (string.IsNullOrWhiteSpace(r.PlexPath))
+                    {
+                        return false;
+                    }
+
                     string separatorChar = IsWindows(r.PlexMediaSource) ? @"\" : @"/";
                     string prefix = r.PlexPath.EndsWith(separatorChar) ? r.PlexPath : r.PlexPath + separatorChar;
                     return path.StartsWith(prefix);
                 });
 
-        return maybeReplacement.Match(
+        foreach (PlexPathReplacement replacement in maybeReplacement)
-            replacement =>
         {
             string finalPath = path.Replace(replacement.PlexPath, replacement.LocalPath);
             if (IsWindows(replacement.PlexMediaSource) && !_runtimeInfo.IsOSPlatform(OSPlatform.Windows))
@@ -65,8 +69,9 @@ public class PlexPathReplacementService : IPlexPathReplacementService
             }
 
             return finalPath;
-            },
+        }
-            () => path);
+
+        return path;
     }
 
     private static bool IsWindows(PlexMediaSource plexMediaSource) =>