From 29d482e89292eace81f48acc1d5fda6b8a3bb02f Mon Sep 17 00:00:00 2001
From: Casper Sparre <reptail@gmail.com>
Date: Wed, 18 Feb 2026 22:30:38 +0100
Subject: [PATCH] Added check if other process is already running.

---
 Cajetan.OF-DL/ProgramCajetan.cs | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/Cajetan.OF-DL/ProgramCajetan.cs b/Cajetan.OF-DL/ProgramCajetan.cs
index 88b5277..4602ce5 100644
--- a/Cajetan.OF-DL/ProgramCajetan.cs
+++ b/Cajetan.OF-DL/ProgramCajetan.cs
@@ -1,3 +1,5 @@
+using System.Diagnostics;
+using System.Reflection;
 using Microsoft.Extensions.DependencyInjection;
 
 AnsiConsole.Write(new FigletText("Welcome to OF-DL").Color(Color.Red));
@@ -5,6 +7,8 @@ AnsiConsole.Write(new FigletText("Welcome to OF-DL").Color(Color.Red));
 ServiceCollection services = await ConfigureServices(args);
 ServiceProvider serviceProvider = services.BuildServiceProvider();
 
+ExitIfOtherProcess(serviceProvider);
+
 Worker worker = serviceProvider.GetRequiredService<Worker>();
 await worker.RunAsync();
 
@@ -149,3 +153,23 @@ static bool ParseCommandlineArgs(string[] args, Config currentConfig, out Cajeta
     }
 }
 
+static void ExitIfOtherProcess(ServiceProvider serviceProvider)
+{
+    Assembly? entryAssembly = Assembly.GetEntryAssembly();
+    AssemblyName? entryAssemblyName = entryAssembly?.GetName();
+
+    if (entryAssemblyName?.Name is null)
+        return;
+
+    Process thisProcess = Process.GetCurrentProcess();
+    Process[] otherProcesses = [.. Process.GetProcessesByName(entryAssemblyName.Name).Where(p => p.Id != thisProcess.Id)];
+
+    if (otherProcesses.Length <= 0)
+        return;
+
+    AnsiConsole.Markup($"[green]Other OF DL process detected, exiting..\n[/]");
+    Log.Warning("Other OF DL process detected, exiting..");
+
+    serviceProvider.GetRequiredService<ExitHelper>().ExitWithCode(0);
+}
+