fix: terminal mode window doesnt work on windows terminal; ha ;-)

this fixes #22

Author: Stephanvs

src/Properties/AssemblyInfo.cs

@@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("tests")]

src/Services/Terminals/WindowsTerminalProvider.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics;
+using System.Text;
 using Hypr.Configuration;
 using Microsoft.Extensions.Logging;
 
@@ -54,30 +55,7 @@ public bool Open(string workingDirectory, TerminalMode mode, string? initCommand
     {
         try
         {
-            var psi = new ProcessStartInfo
-            {
-                FileName = "wt",
-                UseShellExecute = false
-            };
-
-            var hasInitCommand = !string.IsNullOrEmpty(initCommand);
-
-            if (hasInitCommand)
-            {
-                psi.ArgumentList.Add(mode == TerminalMode.Tab ? "new-tab" : "new-window");
-                psi.ArgumentList.Add("-d");
-                psi.ArgumentList.Add(workingDirectory);
-                psi.ArgumentList.Add("powershell");
-                psi.ArgumentList.Add("-NoExit");
-                psi.ArgumentList.Add("-Command");
-                psi.ArgumentList.Add(initCommand!);
-            }
-            else
-            {
-                psi.ArgumentList.Add(mode == TerminalMode.Tab ? "new-tab" : "new-window");
-                psi.ArgumentList.Add("-d");
-                psi.ArgumentList.Add(workingDirectory);
-            }
+            var psi = CreateStartInfo(workingDirectory, mode, initCommand);
 
             Process.Start(psi);
             _logger.LogInformation("Opened {Path} in Windows Terminal ({Mode})", workingDirectory, mode);
@@ -89,4 +67,33 @@ public bool Open(string workingDirectory, TerminalMode mode, string? initCommand
             return false;
         }
     }
+
+    internal static ProcessStartInfo CreateStartInfo(string workingDirectory, TerminalMode mode, string? initCommand = null)
+    {
+        var psi = new ProcessStartInfo
+        {
+            FileName = "wt",
+            UseShellExecute = false
+        };
+
+        if (mode == TerminalMode.Window)
+        {
+            psi.ArgumentList.Add("-w");
+            psi.ArgumentList.Add("new");
+        }
+
+        psi.ArgumentList.Add("new-tab");
+        psi.ArgumentList.Add("-d");
+        psi.ArgumentList.Add(workingDirectory);
+
+        if (!string.IsNullOrWhiteSpace(initCommand))
+        {
+            psi.ArgumentList.Add("powershell");
+            psi.ArgumentList.Add("-NoExit");
+            psi.ArgumentList.Add("-EncodedCommand");
+            psi.ArgumentList.Add(Convert.ToBase64String(Encoding.Unicode.GetBytes(initCommand)));
+        }
+
+        return psi;
+    }
 }

tests/Services/Terminals/TerminalProviderTests.cs

@@ -1,4 +1,5 @@
 using FakeItEasy;
+using System.Text;
 using Hypr.Configuration;
 using Hypr.Services.Terminals;
 using Microsoft.Extensions.Logging;
@@ -271,6 +272,45 @@ public void SupportsMode_ReturnsExpectedValue(TerminalMode mode, bool expected)
     {
         Assert.Equal(expected, _provider.SupportsMode(mode));
     }
+
+    [Fact]
+    public void CreateStartInfo_WindowModeWithInitCommand_UsesNewWindowSyntaxSupportedByWt()
+    {
+        var psi = WindowsTerminalProvider.CreateStartInfo(
+            @"E:\Code\hypr-worktrees\fix-windows-terminal",
+            TerminalMode.Window,
+            "Set-Content -Path .hypr-switch-test.txt -Value ok");
+
+        Assert.Equal(
+            [
+                "-w",
+                "new",
+                "new-tab",
+                "-d",
+                @"E:\Code\hypr-worktrees\fix-windows-terminal",
+                "powershell",
+                "-NoExit",
+                "-EncodedCommand"
+            ],
+            psi.ArgumentList.Take(8).ToArray());
+
+        var decodedCommand = Encoding.Unicode.GetString(Convert.FromBase64String(psi.ArgumentList[8]));
+        Assert.Equal("Set-Content -Path .hypr-switch-test.txt -Value ok", decodedCommand);
+    }
+
+    [Fact]
+    public void CreateStartInfo_WithMultipleCommands_EncodesEntirePowerShellScript()
+    {
+        const string command = "Set-Content -Path .hypr-a.txt -Value a; Set-Content -Path .hypr-b.txt -Value b";
+
+        var psi = WindowsTerminalProvider.CreateStartInfo(
+            @"E:\Code\hypr-worktrees\fix-windows-terminal",
+            TerminalMode.Window,
+            command);
+
+        var decodedCommand = Encoding.Unicode.GetString(Convert.FromBase64String(psi.ArgumentList[8]));
+        Assert.Equal(command, decodedCommand);
+    }
 }
 
 [Trait("Area", "Terminal")]