Refactor email template command and controller

Updated namespace for `ResetEnvelopeTemplateCommand` and added default values for constructor parameters. Enhanced `EmailTemplateController` by making the `Update` method asynchronous, adding error handling, and incorporating a `try-catch` block for improved responsiveness and error management.

EnvelopeGenerator.GeneratorAPI/Controllers/EmailTemplateController.cs

@@ -8,6 +8,8 @@ using Microsoft.AspNetCore.Mvc;
 using EnvelopeGenerator.Application.Contracts.Repositories;
 using EnvelopeGenerator.Application.DTOs;
 using MediatR;
+using System.Threading.Tasks;
+using DigitalData.UserManager.Application.Services;
 
 namespace EnvelopeGenerator.GeneratorAPI.Controllers;
 
@@ -102,19 +104,27 @@ public class EmailTemplateController : ControllerBase
     /// <response code="401">Wenn der Benutzer nicht authentifiziert ist.</response>
     /// <response code="404">Wenn die gesuchte Abfrage nicht gefunden wird.</response>
     [HttpPut]
-    public IActionResult Update([FromQuery] EmailTemplateQuery email, [FromBody] UpdateEmailTemplateCommand? update = null)
+    public async Task<IActionResult> Update([FromQuery] EmailTemplateQuery email, [FromBody] UpdateEmailTemplateCommand? update = null)
     {
-        if (update is null)
+        try
         {
-            var reset = _mapper.Map<ResetEnvelopeTemplateCommand>(email);
-            // Logic for resetting the email template
-        }
-        else
-        {
-            update.EmailTemplateQuery = email;
-            // Logic for updating the email template
-        }
+            if (update is null)
+            {
+                var reset = _mapper.Map<ResetEnvelopeTemplateCommand>(email);
+                await _mediator.Send(new ResetEnvelopeTemplateCommand(email?.Id, email?.Type));
+                return Ok();
+            }
+            else
+            {
+                update.EmailTemplateQuery = email;
+                // Logic for updating the email template
+            }
 
-        return Ok(); // Placeholder for actual implementation
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "An unexpected error occurred. {message}", ex.Message);
+            return new StatusCodeResult(StatusCodes.Status500InternalServerError);
+        }
     }
 }