add auth

lib/workload_service/aggregates/task.ex

@@ -44,6 +44,7 @@ defmodule WorkloadService.Aggregates.Task do
 
       alias unquote(commands_module).CreateTask
       alias unquote(commands_module).SubmitResponse
+      alias unquote(commands_module).RequestApproval
       alias unquote(commands_module).ApproveSubmission
       alias unquote(commands_module).CompleteTask
 
@@ -86,6 +87,18 @@ defmodule WorkloadService.Aggregates.Task do
         end
       end
 
+      @impl Aggregate
+      def execute(%__MODULE__{status: "draft"}, %RequestApproval{} = cmd) do
+        %WorkloadService.Events.ApprovalRequested{
+          id: cmd.id
+        }
+      end
+
+      @impl Aggregate
+      def execute(%__MODULE__{status: status}, %RequestApproval{}) do
+        {:error, {:invalid_state, "cannot request approval in state: #{status}"}}
+      end
+
       @impl Aggregate
       def execute(%__MODULE__{id: id, status: "draft"}, %ApproveSubmission{}) do
         %WorkloadService.Events.SubmissionApproved{
@@ -141,6 +154,14 @@ defmodule WorkloadService.Aggregates.Task do
         }
       end
 
+      @impl Aggregate
+      def apply(%__MODULE__{} = agg, %WorkloadService.Events.ApprovalRequested{}) do
+        %{
+          agg
+          | status: "approval_requested"
+        }
+      end
+
       @impl Aggregate
       def apply(%__MODULE__{} = agg, %WorkloadService.Events.TaskCompleted{}) do
         %{