From 5b34bd760881778c0d54221ac3e5d186bc887fc2 Mon Sep 17 00:00:00 2001
From: William Pereira <MetalHexx@outlook.com>
Date: Sat, 9 Mar 2024 11:35:53 -0500
Subject: [PATCH] feature: updated the library filter to not clear the
 directory listing and switch folders.

---
 .../TeensyRom.Core/Common/PathExtensions.cs   | 16 ++++++++++
 .../Common/State/Player/PlayerContext.cs      | 31 +++----------------
 2 files changed, 21 insertions(+), 26 deletions(-)

diff --git a/Source/Windows/TeensyRom.Ui/src/TeensyRom.Core/Common/PathExtensions.cs b/Source/Windows/TeensyRom.Ui/src/TeensyRom.Core/Common/PathExtensions.cs
index db71be9e..e008c1b9 100644
--- a/Source/Windows/TeensyRom.Ui/src/TeensyRom.Core/Common/PathExtensions.cs
+++ b/Source/Windows/TeensyRom.Ui/src/TeensyRom.Core/Common/PathExtensions.cs
@@ -99,5 +99,21 @@ public static string[] ToPathArray(this string path)
             }
             return path.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
         }
+
+        public static string GetCommonBasePath(this IEnumerable<string> directories)
+        {
+            if (!directories.Any()) return string.Empty;
+
+            string commonPath = directories.First();
+
+            foreach (string path in directories)
+            {
+                while (!path.StartsWith(commonPath, StringComparison.OrdinalIgnoreCase))
+                {
+                    commonPath = commonPath.Substring(0, commonPath.LastIndexOf(Path.DirectorySeparatorChar));
+                }
+            }
+            return commonPath;
+        }
     }
 }
\ No newline at end of file
diff --git a/Source/Windows/TeensyRom.Ui/src/TeensyRom.Ui/Features/Common/State/Player/PlayerContext.cs b/Source/Windows/TeensyRom.Ui/src/TeensyRom.Ui/Features/Common/State/Player/PlayerContext.cs
index d4f7765b..2e4dd62a 100644
--- a/Source/Windows/TeensyRom.Ui/src/TeensyRom.Ui/Features/Common/State/Player/PlayerContext.cs
+++ b/Source/Windows/TeensyRom.Ui/src/TeensyRom.Ui/Features/Common/State/Player/PlayerContext.cs
@@ -143,15 +143,14 @@ public async Task LoadDirectory(string path, string? filePathToSelect = null)
 
             _directoryState.Value.ClearSelection();
             _directoryState.Value.LoadDirectory(cacheItem.ToList(), cacheItem.Path, filePathToSelect);
-            
-            _currentPath = cacheItem.Path;            
+
+            _currentPath = cacheItem.Path;
 
             Application.Current.Dispatcher.Invoke(() =>
             {
                 _tree.Insert(cacheItem.Directories);
                 _tree.SelectDirectory(cacheItem.Path);
             });
-
             _directoryState.OnNext(_directoryState.Value);
         }
         public Task RefreshDirectory(bool bustCache = true)
@@ -374,9 +373,7 @@ public virtual Unit SetPageSize(int pageSize)
         public Task SwitchLibrary(TeensyLibrary library)
         {
             _currentLibrary = library;
-            _directoryState.Value.ClearSelection();            
-            _tree.ResetDirectoryTree(library.Path);
-            return LoadDirectory(library.Path);            
+            return Task.CompletedTask;        
         }
 
         public TeensyFileType[] GetFileTypes() 
@@ -394,7 +391,7 @@ public TeensyFileType[] GetFileTypes()
 
         public async Task StoreFiles(IEnumerable<FileCopyItem> files)
         {
-            var commonParent = GetCommonBasePath(files.Select(i => i.Path));
+            var commonParent = files.Select(i => i.Path).GetCommonBasePath();
             var directoryOnly = files.All(i => i.InSubdirectory);
 
             foreach (var file in files)
@@ -417,24 +414,6 @@ public async Task StoreFiles(IEnumerable<FileCopyItem> files)
                 await _storage.SaveFile(fileInfo);
             }
             await RefreshDirectory(bustCache: false);
-        }
-
-        private static string GetCommonBasePath(IEnumerable<string> directories)
-        {
-            if (!directories.Any()) return string.Empty;
-
-            string commonPath = directories.First();
-
-            foreach (string path in directories)
-            {
-                while (!path.StartsWith(commonPath, StringComparison.OrdinalIgnoreCase))
-                {
-                    commonPath = commonPath.Substring(0, commonPath.LastIndexOf(Path.DirectorySeparatorChar));
-                }
-            }
-            return commonPath;
-        }
-
-
+        }        
     }
 }
\ No newline at end of file