Todo : Fix format

RestService : Fix connection if first connection fail
BL : Fix Update/Delete return value

LaDOSE.Src/LaDOSE.DiscordBot/Command/Todo.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Text;
 using System.Threading.Tasks;
 using DSharpPlus.CommandsNext;
 using DSharpPlus.CommandsNext.Attributes;
@@ -38,12 +39,21 @@ namespace LaDOSE.DiscordBot.Command
                     break;
                 case "LIST":
                     var todoDtos = dep.WebService.RestService.GetTodos();
+                    StringBuilder sb = new StringBuilder();
+                    sb.AppendLine("Todos: ");
+                    if (todoDtos!=null && todoDtos.Count>0)
+                    { 
                         foreach (var task in todoDtos)
                         {
                             string taskStatus = task.Done ? ":white_check_mark:" : ":negative_squared_cross_mark:";
-                        await ctx.RespondAsync($"{task?.Id} - {task?.Task} Par : {task?.User} Etat : {taskStatus}");
+                            sb.AppendLine($"{task.Id} | {taskStatus} | {task.User} | {task.Task}");
                         }
-                    
+                    }
+                    else
+                    {
+                        sb.AppendLine("None.");
+                    }
+                    await ctx.RespondAsync(sb.ToString());
                     break;
                 case "DEL":
                     try

LaDOSE.Src/LaDOSE.DiscordBot/Service/WebService.cs

@@ -23,8 +23,16 @@ namespace LaDOSE.DiscordBot.Service
         public WebService(Uri uri,string user,string password)
         {
           restService = new RestService();
+          try
+          {
               restService.Connect(uri, user, password);
           }
+          catch (Exception)
+          {
+              Console.WriteLine("Unable to contact services");
+          }
+          
+        }
 
         private void CheckToken()
         {

LaDOSE.Src/LaDOSE.REST/RestService.cs

@@ -65,7 +65,7 @@ namespace LaDOSE.REST
 
         private void CheckToken()
         {
-            if (this.Auth.Expire <= DateTime.Now)
+            if (this.Auth == null || this.Auth.Expire <= DateTime.Now)
             {
                 GetToken(this.username,this.password);
             }

LaDOSE.Src/LaDOSE.Service/Service/BaseService.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Linq;
 using LaDOSE.Business.Interface;
 using LaDOSE.Entity.Context;
@@ -34,17 +35,36 @@ namespace LaDOSE.Business.Service
 
         public virtual bool Update(T entity)
         {
+            try
+            {
+
                 var entityEntry = _context.Update(entity);
                 this._context.SaveChanges();
-            return _context.Entry(entityEntry).State == EntityState.Unchanged;
+                return true;
+            }
+            catch (DbUpdateException e)
+            {
+                Console.WriteLine(e.Message);
+                return false;
+            }
         }
 
         public virtual bool Delete(int id)
+        {
+            try
             {
                 var find = _context.Find<T>(id);
-            _context.Remove(find);
+                if (find == null) return false;
+                _context.Remove((object) find);
                 this._context.SaveChanges();
-            return _context.Entry(find).State == EntityState.Deleted;
+                return true;
+            }
+            catch (DbUpdateException e)
+            {
+                Console.WriteLine(e.Message);
+                return false;
+            }
+            
         }
 
         public virtual T AddOrUpdate(T entity)

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

@@ -15,11 +15,24 @@ namespace LaDOSE.Business.Service
         }
 
         public override bool Delete(int id)
+        {
+            try
             {
                 var find = _context.Find<Todo>(id);
+                if (find != null)
+                {
+                    if (find.Deleted.HasValue)
+                        return false;
                     find.Deleted = DateTime.Now;
+                }
+                    
                 this._context.SaveChanges();
-            return _context.Entry(find).State == EntityState.Modified;
+                return true;
+            }
+            catch (DbUpdateException)
+            {
+                return false;
+            }
         }
 
         public override IEnumerable<Todo> GetAll()