Function GraphTab

graph-ui/src/components/GraphTab.tsx:66–511

({ project }: GraphTabProps)

}

export function GraphTab({ project }: GraphTabProps) {
  const { data, loading, error, progress, fetchOverview } = useGraphData();
  const [highlightedIds, setHighlightedIds] = useState<Set<number> | null>(null);
  const [selectedPath, setSelectedPath] = useState<string | null>(null);
  const [selectedNode, setSelectedNode] = useState<GraphNode | null>(null);
  const [cameraTarget, setCameraTarget] = useState<CameraTarget | null>(null);
  const [repoInfo, setRepoInfo] = useState<RepoInfo | null>(null);
  const [showLabels, setShowLabels] = useState(true);
  const [display, setDisplay] = useState<DisplaySettings>(() =>
    loadDisplaySettings(),
  );
  const updateDisplay = useCallback((next: DisplaySettings) => {
    setDisplay(next);
    saveDisplaySettings(next);
  }, []);
  const [leftWidth, setLeftWidth] = useState(() => loadWidth("cbm-left-w", 260));
  const [rightWidth, setRightWidth] = useState(() => loadWidth("cbm-right-w", 280));
  const limitNotice = formatGraphLimitNotice(data);

  /* Node budget — keyed to its project so switching projects re-reads the
   * persisted value and triggers exactly one fetch. */
  const [budget, setBudget] = useState<{ project: string | null; value: number }>(
    { project: null, value: GRAPH_RENDER_NODE_LIMIT },
  );
  const [budgetDraft, setBudgetDraft] = useState(String(GRAPH_RENDER_NODE_LIMIT));

  const commitBudget = useCallback(() => {
    const parsed = clampNodeBudget(parseInt(budgetDraft, 10));
    setBudgetDraft(String(parsed));
    if (project && parsed !== budget.value) {
      saveNodeBudget(project, parsed);
      setBudget({ project, value: parsed });
    }
  }, [budgetDraft, project, budget.value]);

  /* Filter state — all enabled by default */
  const [enabledLabels, setEnabledLabels] = useState<Set<string>>(new Set());
  const [enabledEdgeTypes, setEnabledEdgeTypes] = useState<Set<string>>(new Set());

  /* Dead-code view: recolor by status + status-based filters */
  const [deadCodeView, setDeadCodeView] = useState(false);
  const [showOnlyDead, setShowOnlyDead] = useState(false);
  const [hideEntryPoints, setHideEntryPoints] = useState(false);
  const [hideTests, setHideTests] = useState(false);

  /* Initialize filters when data loads */
  useEffect(() => {
    if (!data) return;
    const labels = new Set(data.nodes.map((n) => n.label));
    const types = new Set(data.edges.map((e) => e.type));
    for (const lp of data.linked_projects ?? []) {
      for (const n of lp.nodes) labels.add(n.label);
      for (const e of lp.edges) types.add(e.type);
      for (const e of lp.cross_edges) types.add(e.type);
    }
    setEnabledLabels(labels);
    setEnabledEdgeTypes(types);
  }, [data]);