Refactor process lifecycle to use Start, Tick, Stop methods and metrics

Processes/CliProcess.cs

@@ -5,29 +5,66 @@ namespace RemSox.Processes;
 
 internal class CliProcess() : Process("Cli")
 {
-    internal override void Run(string[] args)
+    private string currentInput = string.Empty;
+
+    internal override void Start(string[] args)
     {
         Console.Clear();
         Console.WriteLine("Welcome RemSox!");
         Console.WriteLine("Type 'help' to see available commands.");
+        Console.Write("> ");
+    }
 
-        while (!StopRequested)
+    internal override void Tick()
+    {
+        while (Console.KeyAvailable)
         {
-            Console.Write("> ");
+            ConsoleKeyInfo key = Console.ReadKey(intercept: true);
 
-            string? input = Console.ReadLine();
-
-            if (string.IsNullOrWhiteSpace(input))
+            switch (key.Key)
             {
-                continue;
-            }
+                case ConsoleKey.Enter:
+                    Console.WriteLine();
 
-            bool handled = CommandManager.TryExecute(input, line => Console.WriteLine(line));
+                    HandleCommand(currentInput);
 
-            if (!handled)
-            {
-                Console.WriteLine($"\"{input}\" is not a command");
+                    currentInput = string.Empty;
+                    Console.Write("> ");
+                    break;
+
+                case ConsoleKey.Backspace:
+                    if (currentInput.Length > 0)
+                    {
+                        currentInput = currentInput[..^1];
+                        Console.Write("\b \b");
+                    }
+                    break;
+
+                default:
+                    currentInput += key.KeyChar;
+                    Console.Write(key.KeyChar);
+                    break;
             }
         }
     }
-}
+
+    internal override void Stop()
+    {
+        Console.Clear();
+    }
+
+    private static void HandleCommand(string input)
+    {
+        if (string.IsNullOrWhiteSpace(input))
+            return;
+
+        bool handled = CommandManager.TryExecute(
+            input,
+            line => Console.WriteLine(line));
+
+        if (!handled)
+        {
+            Console.WriteLine($"\"{input}\" is not a command");
+        }
+    }
+}