Bot test

LaDOSE.Src/LaDOSE.DiscordBot/Service/TodoService.cs

@@ -0,0 +1,60 @@
+using System.IO;
+
+namespace LaDOSE.DiscordBot.Service
+{
+    public class TodoService
+    {
+        private const string db = "todo.txt";
+
+        public TodoService()
+        {
+        }
+
+        public bool Add(string text)
+        {
+            if (!string.IsNullOrEmpty(text)) { 
+                using (var textWriter =File.AppendText(db))
+                {
+                    textWriter.WriteLine(text);
+                }
+                return true;
+            }
+
+            return false;
+
+        }
+        public bool Delete(int id)
+        {
+            string returnText = "";
+            var text = File.ReadAllText(db);
+            var i = 0;
+            foreach (var line in text.Split('\n'))
+            {
+                ++i;
+                if (i != id)
+                {
+                    returnText += $"{line}\n";
+                }
+                
+            }
+
+            File.WriteAllText(db,returnText);
+            return true;
+
+        }
+
+        public string List()
+        {
+            string returnText = "";
+            var text = File.ReadAllText(db);
+            var i = 0;
+            foreach (var line in text.Split('\n'))
+            {
+                if(!string.IsNullOrEmpty(line))
+                returnText += $"{++i}. {line}";
+            }
+
+            return returnText;
+        }
+    }
+}