Track subworkflow invocations after main invocation is scheduled

Otherwise we'd attempt to download results too early.
That's how I discovered
galaxyproject/galaxy#16705.

planemo/galaxy/activity.py

@@ -208,33 +208,25 @@ def _execute(  # noqa C901
 
         ctx.vlog("Waiting for invocation [%s]" % invocation_id)
         polling_backoff = kwds.get("polling_backoff", 0)
-        final_invocation_state = "new"
-        error_message = ""
-        try:
-            final_invocation_state = _wait_for_invocation(
-                ctx, user_gi, history_id, workflow_id, invocation_id, polling_backoff
-            )
-            assert final_invocation_state == "scheduled"
-        except Exception:
-            ctx.vlog("Problem waiting on invocation...")
-            summarize_history(ctx, user_gi, history_id)
-            error_message = "Final invocation state is [%s]" % final_invocation_state
-        ctx.vlog("Final invocation state is [%s]" % final_invocation_state)
+        no_wait = kwds.get("no_wait", False)
 
-        if not kwds.get("no_wait"):
-            final_state = _wait_for_invocation_jobs(ctx, user_gi, invocation_id, polling_backoff)
-            if final_state not in ("ok", "skipped"):
-                msg = "Failed to run workflow final history state is [%s]." % final_state
-                error_message = msg if not error_message else f"{error_message}. {msg}"
-                ctx.vlog(msg)
-                summarize_history(ctx, user_gi, history_id)
-            else:
-                ctx.vlog("Final history state is 'ok'")
+        final_invocation_state, job_state, error_message = wait_for_invocation_and_jobs(
+            ctx,
+            invocation_id=invocation_id,
+            history_id=history_id,
+            user_gi=user_gi,
+            no_wait=no_wait,
+            polling_backoff=polling_backoff,
+        )
+        if final_invocation_state not in ("ok", "skipped"):
+            msg = f"Failed to run workflow, at least one job is in [{final_invocation_state}] state."
+            ctx.vlog(msg)
+            summarize_history(ctx, user_gi, history_id)
 
         response_kwds = {
             "workflow_id": workflow_id,
             "invocation_id": invocation_id,
-            "history_state": final_state if not kwds.get("no_wait") else None,
+            "history_state": job_state if not no_wait else None,
             "invocation_state": final_invocation_state,
             "error_message": error_message,
         }
@@ -722,9 +714,53 @@ def get_dict_from_workflow(gi, workflow_id):
     return gi.workflows.export_workflow_dict(workflow_id)
 
 
-def _wait_for_invocation(ctx, gi, history_id, workflow_id, invocation_id, polling_backoff=0):
+def wait_for_invocation_and_jobs(
+    ctx, invocation_id: str, history_id: str, user_gi: GalaxyInstance, no_wait: bool, polling_backoff: int
+):
+    ctx.vlog("Waiting for invocation [%s]" % invocation_id)
+    final_invocation_state = "new"
+
+    # TODO: hook in invocation["messages"]
+    error_message = ""
+    job_state = "ok"
+    try:
+        final_invocation_state = _wait_for_invocation(ctx, user_gi, invocation_id, polling_backoff)
+        assert final_invocation_state == "scheduled"
+    except Exception as e:
+        ctx.vlog(f"Problem waiting on invocation: {str(e)}")
+        summarize_history(ctx, user_gi, history_id)
+        error_message = "Final invocation state is [%s]" % final_invocation_state
+
+    ctx.vlog("Final invocation state is [%s]" % final_invocation_state)
+
+    if not no_wait:
+        job_state = _wait_for_invocation_jobs(ctx, user_gi, invocation_id, polling_backoff)
+        if job_state not in ("ok", "skipped"):
+            msg = "Failed to run workflow, at least one job is in [%s] state." % job_state
+            error_message = msg if not error_message else f"{error_message}. {msg}"
+        else:
+            # wait for possible subworkflow invocations
+            invocation = user_gi.invocations.show_invocation(invocation_id)
+            for step in invocation["steps"]:
+                if step.get("subworkflow_invocation_id") is not None:
+                    final_invocation_state, job_state, error_message = wait_for_invocation_and_jobs(
+                        ctx,
+                        invocation_id=step["subworkflow_invocation_id"],
+                        history_id=history_id,
+                        user_gi=user_gi,
+                        no_wait=no_wait,
+                        polling_backoff=polling_backoff,
+                    )
+                    if final_invocation_state != "scheduled" or job_state not in ("ok", "skipped"):
+                        return final_invocation_state, job_state, error_message
+
+        ctx.vlog("All invocation and subworkflow invocations states are 'ok'")
+    return final_invocation_state, job_state, error_message
+
+
+def _wait_for_invocation(ctx, gi, invocation_id, polling_backoff=0):
     def state_func():
-        return _retry_on_timeouts(ctx, gi, lambda gi: gi.workflows.show_invocation(workflow_id, invocation_id))
+        return _retry_on_timeouts(ctx, gi, lambda gi: gi.invocations.show_invocation(invocation_id))
 
     return _wait_on_state(state_func, polling_backoff)