Add Windows service host and system tray controller

tray_service_control.ps1

@@ -0,0 +1,53 @@
+[CmdletBinding()]
+param(
+    [ValidateSet("start", "stop", "restart")]
+    [string]$Action,
+    [string]$ServiceName = "ScreenJobBackend"
+)
+
+Set-StrictMode -Version Latest
+$ErrorActionPreference = "Stop"
+
+function Wait-ForStatus {
+    param(
+        [Parameter(Mandatory = $true)]$Service,
+        [Parameter(Mandatory = $true)][System.ServiceProcess.ServiceControllerStatus]$TargetStatus,
+        [int]$TimeoutSeconds = 20
+    )
+
+    $deadline = (Get-Date).AddSeconds($TimeoutSeconds)
+    while ((Get-Date) -lt $deadline) {
+        $Service.Refresh()
+        if ($Service.Status -eq $TargetStatus) {
+            return
+        }
+        Start-Sleep -Milliseconds 350
+    }
+
+    throw "Timed out waiting for service '$($Service.ServiceName)' to reach status '$TargetStatus'."
+}
+
+$service = Get-Service -Name $ServiceName -ErrorAction Stop
+
+switch ($Action) {
+    "start" {
+        if ($service.Status -ne [System.ServiceProcess.ServiceControllerStatus]::Running) {
+            Start-Service -Name $ServiceName -ErrorAction Stop
+            Wait-ForStatus -Service $service -TargetStatus ([System.ServiceProcess.ServiceControllerStatus]::Running)
+        }
+    }
+    "stop" {
+        if ($service.Status -ne [System.ServiceProcess.ServiceControllerStatus]::Stopped) {
+            Stop-Service -Name $ServiceName -Force -ErrorAction Stop
+            Wait-ForStatus -Service $service -TargetStatus ([System.ServiceProcess.ServiceControllerStatus]::Stopped)
+        }
+    }
+    "restart" {
+        if ($service.Status -eq [System.ServiceProcess.ServiceControllerStatus]::Running) {
+            Restart-Service -Name $ServiceName -Force -ErrorAction Stop
+        } else {
+            Start-Service -Name $ServiceName -ErrorAction Stop
+        }
+        Wait-ForStatus -Service $service -TargetStatus ([System.ServiceProcess.ServiceControllerStatus]::Running)
+    }
+}