remote controller working!

remote_worker_controller.ps1

@@ -45,50 +45,52 @@ $logStream = [System.IO.FileStream]::new(
 $logWriter = [System.IO.StreamWriter]::new($logStream, [System.Text.Encoding]::UTF8)
 $logWriter.AutoFlush = $true
 
-if (-not ("UnifiedWorkers.WorkerLogSink" -as [type])) {
-    Add-Type -Namespace UnifiedWorkers -Name WorkerLogSink -MemberDefinition @"
+# Create C# event handler class that doesn't require PowerShell runspace
+if (-not ("UnifiedWorkers.ProcessLogHandler" -as [type])) {
+    $csharpCode = @'
 using System;
 using System.Diagnostics;
 using System.IO;
 
-public sealed class WorkerLogSink
+namespace UnifiedWorkers
 {
+    public sealed class ProcessLogHandler
+    {
         private readonly TextWriter _writer;
         private readonly string _prefix;
-    private readonly object _sync = new object();
+        private readonly object _lock = new object();
 
-    public WorkerLogSink(TextWriter writer, string prefix)
+        public ProcessLogHandler(TextWriter writer, string prefix)
         {
-        if (writer == null)
-        {
-            throw new ArgumentNullException(\"writer\");
-        }
-        if (prefix == null)
-        {
-            throw new ArgumentNullException(\"prefix\");
+            _writer = writer ?? throw new ArgumentNullException("writer");
+            _prefix = prefix ?? throw new ArgumentNullException("prefix");
         }
 
-        _writer = writer;
-        _prefix = prefix;
-    }
-
-    public void OnData(object sender, DataReceivedEventArgs e)
+        public void OnDataReceived(object sender, DataReceivedEventArgs e)
         {
             if (e == null || string.IsNullOrEmpty(e.Data))
             {
                 return;
             }
 
-        lock (_sync)
+            lock (_lock)
+            {
+                try
                 {
                     var timestamp = DateTime.UtcNow.ToString("u");
-            var line = string.Format("[{0} {1}] {2}", _prefix, timestamp, e.Data);
-            _writer.WriteLine(line);
+                    _writer.WriteLine(string.Format("[{0} {1}] {2}", _prefix, timestamp, e.Data));
                     _writer.Flush();
                 }
+                catch
+                {
+                    // Ignore write errors to prevent cascading failures
+                }
+            }
+        }
     }
 }
-"@
+'@
+    Add-Type -TypeDefinition $csharpCode -ErrorAction Stop
 }
 
 function Write-LogLine {
@@ -99,20 +101,39 @@ function Write-LogLine {
 
     if (-not $logWriter) { return }
     $timestamp = (Get-Date).ToString('u')
-    $logWriter.WriteLine("[{0} {1}] {2}" -f $Prefix, $timestamp, $Message)
+    $logWriter.WriteLine("[$Prefix $timestamp] $Message")
 }
 
 function Write-ControllerLog {
     param([string]$Message)
     Write-LogLine -Prefix 'CTRL' -Message $Message
 }
+
+function Write-FatalLog {
+    param([string]$Message)
+
+    try {
+        Write-ControllerLog $Message
+    }
+    catch {
+        $timestamp = (Get-Date).ToString('u')
+        $fallback = "[CTRL $timestamp] $Message"
+        try {
+            [System.IO.File]::AppendAllText($logPath, $fallback + [Environment]::NewLine, [System.Text.Encoding]::UTF8)
+        }
+        catch {
+            # last resort: write to host
+            Write-Error $fallback
+        }
+    }
+}
 # endregion
 
 # region Helpers
 
 function Resolve-PayloadBase64 {
     if ($PayloadBase64) {
-        return $PayloadBase64
+        return $PayloadBase64.Trim()
     }
 
     if ($PayloadBase64Path) {
@@ -120,7 +141,12 @@ function Resolve-PayloadBase64 {
             throw "Payload file '$PayloadBase64Path' not found."
         }
 
-        return (Get-Content -Path $PayloadBase64Path -Raw)
+        $content = Get-Content -Path $PayloadBase64Path -Raw
+        if ([string]::IsNullOrWhiteSpace($content)) {
+            throw "Payload file '$PayloadBase64Path' is empty."
+        }
+        
+        return $content.Trim()
     }
 
     throw "No payload data provided to controller."
@@ -168,27 +194,37 @@ function Get-PendingCommands {
 }
 # endregion
 
-# record initial state before launching worker
-Write-Metadata -Status 'initializing' -WorkerPid $null -ControllerPid $PID -Restarts 0
-
-$resolvedPayloadBase64 = Resolve-PayloadBase64
-$PayloadBase64 = $resolvedPayloadBase64
-
 try {
+    # record initial state before launching worker
+    Write-Metadata -Status 'initializing' -WorkerPid $null -ControllerPid $PID -Restarts 0
+
+    $resolvedPayloadBase64 = Resolve-PayloadBase64
+    $PayloadBase64 = $resolvedPayloadBase64
+
+    try {
         # Write payload script to disk
+        # The payload is base64-encoded UTF-16 (Unicode), so decode it properly
+        Write-ControllerLog "Decoding payload base64 (length: $($resolvedPayloadBase64.Length))"
         $payloadBytes = [Convert]::FromBase64String($resolvedPayloadBase64)
-    [IO.File]::WriteAllBytes($payloadPath, $payloadBytes)
-    Write-ControllerLog "Payload written to $payloadPath"
-}
-catch {
-    Write-Error "Unable to write payload: $($_.Exception.Message)"
-    exit 1
-}
+        Write-ControllerLog "Decoded payload to $($payloadBytes.Length) bytes"
         
-$restartCount = 0
-$controllerPid = $PID
+        # Convert UTF-16 bytes back to string, then write as UTF-8 (PowerShell's preferred encoding)
+        $payloadText = [Text.Encoding]::Unicode.GetString($payloadBytes)
+        [IO.File]::WriteAllText($payloadPath, $payloadText, [Text.Encoding]::UTF8)
+        Write-ControllerLog "Payload written to $payloadPath ($($payloadText.Length) characters)"
+    }
+    catch {
+        Write-FatalLog "Unable to write payload: $($_.Exception.Message)"
+        if ($_.Exception.InnerException) {
+            Write-FatalLog "Inner exception: $($_.Exception.InnerException.Message)"
+        }
+        throw
+    }
 
-while ($restartCount -le $MaxRestarts) {
+    $restartCount = 0
+    $controllerPid = $PID
+
+    while ($restartCount -le $MaxRestarts) {
         try {
             # Initialize worker process
             $psi = [System.Diagnostics.ProcessStartInfo]::new()
@@ -217,10 +253,11 @@ while ($restartCount -le $MaxRestarts) {
             Write-ControllerLog "Worker process started with PID $($workerProcess.Id)"
             Write-Metadata -Status 'running' -WorkerPid $workerProcess.Id -ControllerPid $controllerPid -Restarts $restartCount
 
-        $stdoutSink = [UnifiedWorkers.WorkerLogSink]::new($logWriter, 'OUT')
-        $stderrSink = [UnifiedWorkers.WorkerLogSink]::new($logWriter, 'ERR')
-        $outputHandler = [System.Diagnostics.DataReceivedEventHandler]$stdoutSink.OnData
-        $errorHandler = [System.Diagnostics.DataReceivedEventHandler]$stderrSink.OnData
+            $stdoutHandler = [UnifiedWorkers.ProcessLogHandler]::new($logWriter, 'OUT')
+            $stderrHandler = [UnifiedWorkers.ProcessLogHandler]::new($logWriter, 'ERR')
+            
+            $outputHandler = [System.Diagnostics.DataReceivedEventHandler]$stdoutHandler.OnDataReceived
+            $errorHandler = [System.Diagnostics.DataReceivedEventHandler]$stderrHandler.OnDataReceived
 
             $workerProcess.add_OutputDataReceived($outputHandler)
             $workerProcess.add_ErrorDataReceived($errorHandler)
@@ -270,15 +307,24 @@ while ($restartCount -le $MaxRestarts) {
 
         Write-ControllerLog "Restarting worker in $RestartDelaySeconds seconds (attempt $restartCount of $MaxRestarts)."
         Start-Sleep -Seconds $RestartDelaySeconds
+    }
+
+    Write-Metadata -Status 'inactive' -WorkerPid $null -ControllerPid $controllerPid -Restarts $restartCount
+    Write-ControllerLog "Controller exiting."
 }
-
-Write-Metadata -Status 'inactive' -WorkerPid $null -ControllerPid $controllerPid -Restarts $restartCount
-Write-ControllerLog "Controller exiting."
-
-if ($logWriter) {
+catch {
+    Write-FatalLog "Fatal controller error: $($_.Exception.Message)"
+    if ($_.ScriptStackTrace) {
+        Write-FatalLog "Stack: $($_.ScriptStackTrace)"
+    }
+    throw
+}
+finally {
+    if ($logWriter) {
         $logWriter.Dispose()
-}
-if ($logStream) {
+    }
+    if ($logStream) {
         $logStream.Dispose()
+    }
 }