From 820ca652a9cd6342ee647f7c7dd47cf342be333a Mon Sep 17 00:00:00 2001
From: Canon <canonoverseer@gmail.com>
Date: Wed, 4 Feb 2026 13:50:34 +0800
Subject: [PATCH] Git Requirement Check

---
 Commands/GitRequiredInterceptor.cs | 52 ++++++++++++++++++++++++++++++
 Program.cs                         |  1 +
 2 files changed, 53 insertions(+)
 create mode 100644 Commands/GitRequiredInterceptor.cs

diff --git a/Commands/GitRequiredInterceptor.cs b/Commands/GitRequiredInterceptor.cs
new file mode 100644
index 0000000..2ce52f4
--- /dev/null
+++ b/Commands/GitRequiredInterceptor.cs
@@ -0,0 +1,52 @@
+using CliWrap;
+using CliWrap.Buffered;
+using Spectre.Console;
+using Spectre.Console.Cli;
+
+namespace FCPModUpdater.Commands;
+
+public sealed class GitRequiredInterceptor : ICommandInterceptor
+{
+    public void Intercept(CommandContext context, CommandSettings settings)
+    {
+        if (IsGitInstalled()) return;
+        
+        // It wasn't installed..
+        AnsiConsole.MarkupLine("[yellow]This application requires Git to manage mods.[/]");
+        AnsiConsole.WriteLine();
+        AnsiConsole.MarkupLine("Install Git from: [link]https://git-scm.com/downloads[/]");
+
+        throw new GitNotFoundException();
+    }
+
+    private static bool IsGitInstalled()
+    {
+        try
+        {
+            var result = Cli.Wrap("git")
+                .WithArguments("--version")
+                .WithValidation(CommandResultValidation.None)
+                .ExecuteBufferedAsync()
+                .GetAwaiter()
+                .GetResult();
+
+            return result.ExitCode == 0;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+}
+
+public class GitNotFoundException : Exception
+{
+    public GitNotFoundException() 
+        : base("Git is not installed or not found in PATH.") { }
+    
+    public GitNotFoundException(string message) 
+        : base(message) { }
+    
+    public GitNotFoundException(string message, Exception inner) 
+        : base(message, inner) { }
+}
\ No newline at end of file
diff --git a/Program.cs b/Program.cs
index 0cd509d..7aaf867 100644
--- a/Program.cs
+++ b/Program.cs
@@ -9,6 +9,7 @@ app.Configure(config =>
 {
     config.SetApplicationName("fcp-mod-manager");
     config.SetApplicationVersion("1.0.0");
+    config.SetInterceptor(new GitRequiredInterceptor());
 
     config.AddCommand<ScanCommand>("scan")
         .WithDescription("Scan mods and show interactive menu (DEFAULT)")