Add mqtt message on workflow succeeded

api/Controllers/WorkflowsControlller.cs

@@ -3,6 +3,7 @@
 using api.Database;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Authorization;
+using api.MQTT;
 namespace api.Controllers;
 
 public class WorkflowStartedNotification
@@ -20,8 +21,10 @@ public class WorkflowExitedNotification
 
 [ApiController]
 [Route("[controller]")]
-public class WorkflowsController(IInspectionDataService inspectionDataService) : ControllerBase
+public class WorkflowsController(IInspectionDataService inspectionDataService, MqttService mqttService) : ControllerBase
 {
+    private readonly IInspectionDataService _inspectionDataService = inspectionDataService;
+    private readonly MqttService _mqttService = mqttService;
 
     /// <summary>
     /// Updates status of inspection data to started
@@ -33,7 +36,7 @@ public class WorkflowsController(IInspectionDataService inspectionDataService) :
     [ProducesResponseType(StatusCodes.Status404NotFound)]
     public async Task<ActionResult<InspectionDataResponse>> WorkflowStarted([FromBody] WorkflowStartedNotification notification)
     {
-        var updatedInspectionData = await inspectionDataService.UpdateAnonymizerWorkflowStatus(notification.InspectionId, WorkflowStatus.Started);
+        var updatedInspectionData = await _inspectionDataService.UpdateAnonymizerWorkflowStatus(notification.InspectionId, WorkflowStatus.Started);
         if (updatedInspectionData == null)
         {
             return NotFound($"Could not find workflow with inspection id {notification.InspectionId}");
@@ -63,11 +66,21 @@ public async Task<ActionResult<InspectionDataResponse>> WorkflowExited([FromBody
             status = WorkflowStatus.ExitFailure;
         }
 
-        var updatedInspectionData = await inspectionDataService.UpdateAnonymizerWorkflowStatus(notification.InspectionId, status);
+        var updatedInspectionData = await _inspectionDataService.UpdateAnonymizerWorkflowStatus(notification.InspectionId, status);
         if (updatedInspectionData == null)
         {
             return NotFound($"Could not find workflow with inspection id {notification.InspectionId}");
         }
+
+        var mqttTopic = $"workflow/{notification.InspectionId}/status_success";
+        var mqttMessage = new
+        {
+            notification.InspectionId,
+            Status = notification.WorkflowStatus, // "Succeeded"" for success, else fail
+            Timestamp = DateTime.UtcNow
+        };
+
+        await _mqttService.PublishMessageAsync(mqttTopic, mqttMessage);
         return Ok(updatedInspectionData);
     }
 }

api/MQTT/MqttService.cs

@@ -1,7 +1,7 @@
 using System.Text;
 using System.Text.Json;
 using System.Text.Json.Serialization;
-using api.MQTT;
+using MQTTnet.Protocol;
 using api.Utilities;
 using MQTTnet;
 using MQTTnet.Client;
@@ -265,5 +265,18 @@ private void OnIsarTopicReceived<T>(string content) where T : MqttMessage
                 _logger.LogWarning("{msg}", e.Message);
             }
         }
+
+        public async Task PublishMessageAsync<T>(string topic, T message)
+        {
+            string payload = JsonSerializer.Serialize(message, serializerOptions);
+            var mqttMessage = new MqttApplicationMessageBuilder()
+                .WithTopic(topic)
+                .WithPayload(payload)
+                .WithQualityOfServiceLevel(MqttQualityOfServiceLevel.ExactlyOnce)
+                .Build();
+
+            await _mqttClient.EnqueueAsync(mqttMessage);
+            _logger.LogInformation("Published message to topic {Topic}: {Message}", topic, payload);
+        }
     }
 }

api/MQTT/MqttTopics.cs

@@ -12,9 +12,8 @@ public static class MqttTopics
         public static readonly Dictionary<string, Type> TopicsToMessages =
             new()
             {
-                {
-                    "isar/+/inspection_result", typeof(IsarInspectionResultMessage)
-                }
+                { "isar/+/inspection_result", typeof(IsarInspectionResultMessage) },
+                { "workflow/+/status_success", typeof(WorkflowStatusSuccessMessage) }
             };
 
         /// <summary>

api/MQTT/WorkflowStatusResult.cs

@@ -0,0 +1,18 @@
+using System.Text.Json.Serialization;
+
+namespace api.MQTT;
+
+/// <summary>
+/// Represents the message payload for a successful workflow status update.
+/// </summary>
+public class WorkflowStatusSuccessMessage : MqttMessage
+{
+    [JsonPropertyName("inspection_id")]
+    public required string InspectionId { get; set; }
+
+    [JsonPropertyName("status")]
+    public required string Status { get; set; }
+
+    [JsonPropertyName("timestamp")]
+    public required DateTime Timestamp { get; set; }
+}