chore: remove old and unused code

tui_test.go

@@ -919,6 +919,63 @@ func TestPullRequestAIPreparationFailureIgnoresOldDiscussionThread(t *testing.T)
 	}
 }
 
+func TestAIStaleOperationMessagesAreIgnored(t *testing.T) {
+	m := NewApp(nil, "o", "r", false, 50, time.Second)
+	m.aiGeneration = 2
+	m.aiMode = aiBusy
+	m.aiProgress = AIRunProgress{Stage: "current run"}
+
+	updated, command, handled := m.updateAI(aiProgressMsg{
+		generation: 1, progress: AIRunProgress{Stage: "stale run"},
+	})
+	m = updated.(App)
+	if !handled || command != nil || m.aiProgress.Stage != "current run" {
+		t.Fatalf("stale progress handled=%v command=%v progress=%q",
+			handled, command, m.aiProgress.Stage)
+	}
+
+	updated, command, handled = m.updateAI(aiCompletedMsg{generation: 1})
+	m = updated.(App)
+	if !handled || command != nil || m.aiMode != aiBusy {
+		t.Fatalf("stale completion handled=%v command=%v mode=%v",
+			handled, command, m.aiMode)
+	}
+
+	m.aiMode = aiPreparing
+	updated, command, handled = m.updateAI(aiPreparedMsg{generation: 1})
+	m = updated.(App)
+	if !handled || command != nil || m.aiMode != aiPreparing {
+		t.Fatalf("stale preparation handled=%v command=%v mode=%v",
+			handled, command, m.aiMode)
+	}
+}
+
+func TestPREditStaleRecommendationMessagesAreIgnored(t *testing.T) {
+	m := NewApp(nil, "o", "r", false, 50, time.Second)
+	m.details = PRDetails{PullRequest: PullRequest{Owner: "o", Repository: "r"}}
+	m.writeMode = writePREdit
+	m.prEditGeneration = 2
+	m.prEditBranches = []RepositoryBranch{{Name: "current"}}
+
+	updated, command := m.Update(branchesLoadedMsg{
+		generation: 1, owner: "o", repo: "r",
+		branches: []RepositoryBranch{{Name: "stale"}},
+	})
+	m = updated.(App)
+	if command != nil || len(m.prEditBranches) != 1 || m.prEditBranches[0].Name != "current" {
+		t.Fatalf("stale branches command=%v branches=%#v", command, m.prEditBranches)
+	}
+
+	updated, command = m.Update(branchesLoadedMsg{
+		generation: 2, owner: "o", repo: "r",
+		branches: []RepositoryBranch{{Name: "accepted"}},
+	})
+	m = updated.(App)
+	if command != nil || len(m.prEditBranches) != 1 || m.prEditBranches[0].Name != "accepted" {
+		t.Fatalf("current branches command=%v branches=%#v", command, m.prEditBranches)
+	}
+}
+
 func TestVimModeUsesGlobalFooterBar(t *testing.T) {
 	m := NewApp(nil, "o", "r", false, 50, time.Second)
 	m.width, m.height = 80, 10