Complete autonomous recovery controls

internal/federation/client.go

@@ -138,6 +138,20 @@ func (c Client) Renew(ctx context.Context, taskID, epoch string, expectedVersion
 	}
 	return err
 }
+func (c Client) Start(ctx context.Context, taskID, epoch string, expectedVersion int, evidence domain.SessionEvidence) error {
+	resp, err := c.request(ctx, http.MethodPost, "/v1/federation/workers/"+url.PathEscape(c.WorkerID)+"/start", map[string]any{"task_id": taskID, "lease_epoch": epoch, "expected_version": expectedVersion, "session_evidence": evidence})
+	if resp != nil {
+		resp.Body.Close()
+	}
+	return err
+}
+func (c Client) NackStart(ctx context.Context, taskID, epoch string, expectedVersion int, failureClass, detail string, evidence domain.SessionEvidence) error {
+	resp, err := c.request(ctx, http.MethodPost, "/v1/federation/workers/"+url.PathEscape(c.WorkerID)+"/nack", map[string]any{"task_id": taskID, "lease_epoch": epoch, "expected_version": expectedVersion, "failure_class": failureClass, "last_error": detail, "session_evidence": evidence})
+	if resp != nil {
+		resp.Body.Close()
+	}
+	return err
+}
 func (c Client) Artifact(ctx context.Context, ref string) ([]byte, error) {
 	resp, err := c.request(ctx, http.MethodGet, "/v1/artifacts/"+url.PathEscape(ref), nil)
 	if err != nil {

internal/federation/client_test.go

@@ -2,8 +2,10 @@ package federation
 
 import (
 	"context"
+	"encoding/json"
 	"net/http"
 	"net/http/httptest"
+	"orchestra/internal/domain"
 	"testing"
 )
 
@@ -49,3 +51,26 @@ func TestClientRegistersPollsAndReadsArtifactAsWorker(t *testing.T) {
 		}
 	}
 }
+
+func TestClientReportsTypedLaunchAckAndNack(t *testing.T) {
+	seen := map[string]map[string]any{}
+	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		var body map[string]any
+		if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
+			t.Fatal(err)
+		}
+		seen[r.URL.Path] = body
+		w.WriteHeader(http.StatusNoContent)
+	}))
+	defer s.Close()
+	c := Client{BaseURL: s.URL, WorkerID: "h1", Token: "worker"}
+	if err := c.Start(context.Background(), "task", "epoch", 7, domain.SessionEvidence{PaneID: "p"}); err != nil {
+		t.Fatal(err)
+	}
+	if err := c.NackStart(context.Background(), "task", "epoch", 8, "invalid_handoff", "anchor mismatch", domain.SessionEvidence{PaneID: "p"}); err != nil {
+		t.Fatal(err)
+	}
+	if seen["/v1/federation/workers/h1/start"]["expected_version"] != float64(7) || seen["/v1/federation/workers/h1/nack"]["failure_class"] != "invalid_handoff" {
+		t.Fatalf("launch reports=%#v", seen)
+	}
+}