[Init] Initial commit - NetMesh terminal manager

components/terminalTopTabsTheme.ts

@@ -0,0 +1,60 @@
+import { collectSessionIds } from "../domain/workspace";
+import type { Workspace } from "../types";
+
+export type TopTabsSidePanelTab = "sftp" | "scripts" | "history" | "theme" | "ai" | null;
+
+type ScopedTopTabsThemeInput = {
+  activeSidePanelTab: TopTabsSidePanelTab;
+  activeThemePreviewId: string | null;
+  activeWorkspace: Workspace | null | undefined;
+  followAppTerminalTheme: boolean;
+  isVisible: boolean;
+  previewTargetSessionId: string | null;
+  previewedOrVisibleThemeId: string;
+  resolveSessionThemeId: (sessionId: string) => string | null;
+};
+
+export function getScopedTopTabsThemeId({
+  activeSidePanelTab,
+  activeThemePreviewId,
+  activeWorkspace,
+  followAppTerminalTheme,
+  isVisible,
+  previewTargetSessionId,
+  previewedOrVisibleThemeId,
+  resolveSessionThemeId,
+}: ScopedTopTabsThemeInput): string | null {
+  if (activeSidePanelTab === "theme" && previewTargetSessionId && activeThemePreviewId) {
+    return activeThemePreviewId;
+  }
+
+  if (!isVisible || followAppTerminalTheme) {
+    return null;
+  }
+
+  if (!activeWorkspace) {
+    return previewedOrVisibleThemeId;
+  }
+
+  if (activeWorkspace.viewMode === "focus") {
+    return null;
+  }
+
+  const sessionIds = collectSessionIds(activeWorkspace.root);
+  if (sessionIds.length < 2) return null;
+
+  let firstThemeId: string | null = null;
+  for (const sessionId of sessionIds) {
+    const themeId = resolveSessionThemeId(sessionId);
+    if (!themeId) continue;
+    if (firstThemeId == null) {
+      firstThemeId = themeId;
+      continue;
+    }
+    if (themeId !== firstThemeId) {
+      return previewedOrVisibleThemeId;
+    }
+  }
+
+  return null;
+}