- tweak: file managment

Nebula.Shared/FileApis/FileApi.cs

@@ -2,7 +2,7 @@
 
 namespace Nebula.Shared.FileApis;
 
-public class FileApi : IReadWriteFileApi
+public sealed class FileApi : IReadWriteFileApi
 {
     public string RootPath;
 
@@ -13,10 +13,19 @@ public class FileApi : IReadWriteFileApi
 
     public bool TryOpen(string path, out Stream? stream)
     {
-        if (File.Exists(Path.Join(RootPath, path)))
+        var fullPath = Path.Join(RootPath, path);
+        if (File.Exists(fullPath))
         {
-            stream = File.OpenRead(Path.Join(RootPath, path));
-            return true;
+            try
+            {
+                stream = new FileStream(fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
+                return true;
+            }
+            catch
+            {
+                stream = null;
+                return false;
+            }
         }
 
         stream = null;
@@ -27,27 +36,43 @@ public class FileApi : IReadWriteFileApi
     {
         var currPath = Path.Join(RootPath, path);
 
-        var dirInfo = new DirectoryInfo(Path.GetDirectoryName(currPath));
-        if (!dirInfo.Exists) dirInfo.Create();
+        try
+        {
+            var dirInfo = new DirectoryInfo(Path.GetDirectoryName(currPath) ?? throw new InvalidOperationException());
+            if (!dirInfo.Exists) dirInfo.Create();
 
-        using var stream = File.OpenWrite(currPath);
-        input.CopyTo(stream);
-        stream.Flush();
-        stream.Close();
-        return true;
+            using var stream = new FileStream(currPath, FileMode.Create, FileAccess.Write, FileShare.None);
+            input.CopyTo(stream);
+            return true;
+        }
+        catch
+        {
+            return false;
+        }
     }
 
     public bool Remove(string path)
     {
-        if (!Has(path)) return false;
-        File.Delete(Path.Join(RootPath, path));
-        return true;
+        var fullPath = Path.Join(RootPath, path);
+        try
+        {
+            if (File.Exists(fullPath))
+            {
+                File.Delete(fullPath);
+                return true;
+            }
+        }
+        catch
+        {
+            // Log exception if necessary
+        }
+        return false;
     }
 
     public bool Has(string path)
     {
-        var currPath = Path.Join(RootPath, path);
-        return File.Exists(currPath);
+        var fullPath = Path.Join(RootPath, path);
+        return File.Exists(fullPath);
     }
 
     public IEnumerable<string> AllFiles => Directory.EnumerateFiles(RootPath, "*.*", SearchOption.AllDirectories);