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https://github.com/fabro-sh/fabro.git
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b196a97ac4
## Summary
Implements the React Effects Policy by creating the approved hook
surface in `hooks/effects.ts` and migrating a broad set of direct
`useEffect` calls across the codebase to either purpose-named hooks or
non-effect patterns.
### Plan Summary
- Add `hooks/effects.ts` exporting `useMountEffect`, `useInterval`,
`useTimeout`, `useDebouncedValue`, `useWindowEvent`, `useDocumentEvent`,
`useDocumentTitle`, `useMediaQuery`, `useLocationHash`, and
`useResizeObserver`
- Extract large imperative effects into purpose-named hooks:
`useTerminalSession`, `useFloatingTooltipMeasurements`,
`useAnnotatedRunGraphSvg`, `useInstallEffects`, and others
- Move install session fetch from a component effect into a SWR query
(`install-query.ts`)
- Replace `useEffect` + `useState` state-derivation patterns with
render-time computation or ref callbacks
- Replace `AskFabroLayoutProvider`/`useAskFabroLayout` context with a
prop callback
## What changed and why
**`hooks/effects.ts`** — the new approved primitive surface. All
internal `useEffect` calls here are intentional; the hooks expose the
*external system* they manage rather than leaking `useEffect` to
component code. `useMediaQuery` and `useLocationHash` use
`useSyncExternalStore` instead of effect + state.
**`useTerminalSession`** — the largest extraction. The 130-line
xterm/WebSocket/ResizeObserver setup block moves from
`terminal-view.tsx` into its own hook, which now owns the `terminalRef`,
`fitRef`, and `socketRef` that previously cluttered the component.
`TerminalConnectionError` and `ConnectionStatus` types are exported from
the hook.
**`useFloatingTooltipMeasurements`** — extracts the `useLayoutEffect` +
ResizeObserver + window resize listener out of `FloatingTooltip`. The
`FloatingTooltipSize` type moves with it so consumers don't need to
import from the component.
**`useInstallSessionQuery` + `useInstallEffects`** — the install session
fetch moves from a component effect to SWR (`install-query.ts`). The
three remaining install effects (token URL scrubbing, GitHub error URL
scrubbing, health-poll restart) move into
`hooks/use-install-effects.ts`. The root-redirect effect is replaced
with a render-time `<Navigate>` gate. The `SessionState` discriminant
now carries `token` so stale query results can be discarded without an
effect chain.
**`SelectionCheckbox`** — `useEffect` setting `input.indeterminate` is
replaced with a ref callback, which runs synchronously after the node is
attached and avoids a stale-frame flash.
**`event-debug.tsx`** — the manual `window.addEventListener("keydown",
...)` pattern is replaced with `useWindowEvent`, removing the
`react-doctor-disable` suppression comments.
**`run-waterfall.tsx`** — the local `useTickingNow` is deleted;
`RunWaterfall` now calls the shared `useTickingNow` from `lib/time` with
the new `active` parameter signature.
**`toast.test.tsx`** — `useEffect(() => onReady?.(api), ...)` in the
test helper is replaced with a direct call during render, which is valid
because `onReady` has no side effects that React cares about.
**`AskFabroSidebar`** — `setIsResizing` from the layout context is
replaced with an `onResizeActiveChange` prop, removing the
`useAskFabroLayout` call and the hidden context coupling from the
sidebar.
### Fabro Details
<details>
<summary>Ran 3 stages in 114m 5s for $95.71</summary>
| Stage | Duration | Cost | Retries |
|---|---|---|---|
| start | 0s | – | 0 |
| work | 103m 3s | $80.42 | 0 |
| audit | 10m 19s | $15.29 | 0 |
| **Total** | **114m 5s** | **$95.71** | **0** |
</details>
<details>
<summary>Ran <code>Goal.fabro</code> (4 nodes and 5 edges)</summary>
```dot
digraph Goal {
graph [
goal="Complete the user-provided goal",
rankdir=LR,
max_node_visits=30
]
start [shape=Mdiamond, label="Start"]
exit [shape=Msquare, label="Exit"]
work [
label="Work",
thread_id="goal",
fidelity="full",
max_visits=12,
model="gpt-55",
reasoning_effort="xhigh",
prompt="@prompts/continue.md"
]
audit [
label="Completion Audit",
thread_id="goal",
fidelity="full",
goal_gate=true,
retry_target="work",
output_schema="routing",
output_retries=2,
max_visits=12,
model="gpt-55",
reasoning_effort="xhigh",
prompt="@prompts/audit.md"
]
start -> work -> audit
audit -> exit [label="Done", condition="outcome=succeeded"]
audit -> work [label="Continue", condition="outcome=failed || preferred_label=Continue"]
audit -> work [label="No clear verdict"]
}
```
</details>
⚒️ Generated with [Fabro](https://fabro.sh)
---------
Co-authored-by: Fabro <noreply@fabro.sh>
Co-authored-by: Bryan Helmkamp <bryan@brynary.com>
50 lines
1.9 KiB
TypeScript
50 lines
1.9 KiB
TypeScript
import { useReducer } from "react";
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import { useInterval } from "../hooks/effects";
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/**
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* Re-renders the calling component every `intervalMs` milliseconds while
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* `active` is true, returning the current `Date.now()` value at each tick.
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* Returns the captured value when paused, so renders are stable.
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*/
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export function useTickingNow(active: boolean, intervalMs = 1000): number {
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const [now, tick] = useReducer(() => Date.now(), undefined, Date.now);
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useInterval(tick, intervalMs, active);
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return now;
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}
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/**
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* Whole seconds elapsed since an ISO 8601 timestamp, or `null` when the
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* timestamp is missing or unparseable. Never negative. Pass the value from
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* `useTickingNow` as `now` so the count advances on each tick.
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*/
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export function elapsedSecsSince(startedAt: string | null, now: number = Date.now()): number | null {
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if (!startedAt) return null;
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const startMs = Date.parse(startedAt);
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if (Number.isNaN(startMs)) return null;
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return Math.max(0, Math.floor((now - startMs) / 1000));
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}
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function relativeTime(seconds: number, past: boolean): string {
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if (seconds < 60) return past ? "just now" : "in <1m";
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const minutes = Math.floor(seconds / 60);
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if (minutes < 60) return past ? `${minutes}m ago` : `in ${minutes}m`;
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const hours = Math.floor(minutes / 60);
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if (hours < 24) return past ? `${hours}h ago` : `in ${hours}h`;
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const days = Math.floor(hours / 24);
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return past ? `${days}d ago` : `in ${days}d`;
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}
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/**
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* Format an ISO 8601 timestamp as a relative past time string (e.g. "2h ago", "3d ago").
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*/
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export function timeAgo(iso: string): string {
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return relativeTime(Math.floor((Date.now() - new Date(iso).getTime()) / 1000), true);
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}
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/**
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* Format an ISO 8601 timestamp as a relative future time string (e.g. "in 2h", "in 3d").
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*/
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export function timeUntil(iso: string): string {
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return relativeTime(Math.floor((new Date(iso).getTime() - Date.now()) / 1000), false);
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}
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