Implement get task by id without mock (#118)

blotztask-api/Services/TaskService.cs

@@ -44,15 +44,25 @@ public async Task<List<TaskItemDTO>> GetTodoItems()
     }
     public async Task<TaskItemDTO> GetTaskByID(int Id)
     {
-
-        var taskItems = new List<TaskItemDTO>
-    {
-        new TaskItemDTO { Id = 0, Title = "Task 0", Description = "Description for Task 1", IsDone = false, CreatedAt = DateTime.Now, UpdatedAt = DateTime.Now },
-        new TaskItemDTO { Id = 1, Title = "Task 1", Description = "Description for Task 2", IsDone = true, CreatedAt = DateTime.Now, UpdatedAt = DateTime.Now },
-        new TaskItemDTO { Id = 2, Title = "Task 2", Description = "Description for Task 3", IsDone = false, CreatedAt = DateTime.Now, UpdatedAt = DateTime.Now }
-    };
+        var task = await _dbContext.TaskItems.FindAsync(Id);
+
+        if (task == null)
+        {
+            throw new NotFoundException($"Task with ID {Id} not found.");
+        }
+
+        var result = new TaskItemDTO()
+        {
+            Id = task.Id,
+            Title = task.Title,
+            Description = task.Description,
+            DueDate = task.DueDate,
+            IsDone = task.IsDone,
+            CreatedAt = task.CreatedAt,
+            UpdatedAt = task.UpdatedAt
+        };
 
-        return await Task.FromResult(taskItems[Id]);
+        return result;
     }
 
     public async Task<string> AddTask(AddTaskItemDTO addtaskItem)