1ba1cac1db65eaebbf46a0e00ff490936a4e7f85
2
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 bermudalamb
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45f1c77160 |
refactor(frontend): triage the setState-in-effect sites (#99)
Eleven warnings that looked alike and were not. This is a decision per site rather than eleven fixes, which is what the issue asked for — some of these would be made worse by "fixing" them. One was a real defect. VerifyEmail routed a fact through an effect that was already knowable during render: whether the link carries a token comes from the URL. The component therefore rendered once as a spinner in a state that was never true — a link with no token was never "verifying". Both pieces of state now derive their initial value from the token, and the effect's missing-token branch becomes an early return, so the failure is what the first render shows. Two are a defensible reset. CartProvider and FavoritesProvider clear their collection when the customer becomes null, which is synchronisation with the session rather than derived state. Deriving instead would push "signed out" onto every consumer of those contexts, and remounting on a `key` is more indirection than the problem deserves. Decided and written down rather than left for the next reader to re-investigate. Eight are legitimate and flagged conservatively. Six are a pending flag before a fetch — the rule cannot tell a spinner from a value that was already known. Cart's lapsed-item refetch is synchronisation with a server-side release the client cannot observe. useNow subscribes to the clock, which is the case the rule's own documentation names as correct. Each of the ten that stay carries the reason and a targeted disable, so lint drops from thirteen warnings to two — and the two left are the unrelated no-alphabetical-sort pair. Suppressing per site rather than switching the rule off keeps it live for new code, which is where the next VerifyEmail would be caught. The trap #60 recorded caught this, in a variant it does not describe. Placing the disable above `useEffect(` works only for a single-line effect: where the effect spans several lines the flagged line is the setState inside the body, so the directive covered nothing and produced both an unused-disable warning and the original one. Three sites were wrong that way on the first attempt. Confirmed fixed by the absence of "Unused eslint-disable directive" from the output — a disable that covers nothing reports itself, which is what makes this checkable rather than assumed. Verified: tsc clean over src and tests, and the specs covering the changed behaviour pass — verify-email, auth, favorites, orders, cart-countdown, resend-verification, 32 of 33 with the one failure passing 10/10 in a serial re-run. Closes #99 |
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bermudalamb
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461ab01d4c |
refactor(storefront): extract the catalogue machine from App.tsx as useCatalogue (#98)
App.tsx was 361 lines, and roughly sixty of them were one cohesive concern with nothing to do with laying out a page: fetching the catalogue for the current filters, debouncing it, and negotiating with the session before it could ask. Six pieces of state, four callbacks and two effects, sharing scope with the header, footer, filter drawer and auth modal that make up the rest of the file. This is the same shape #81 dealt with once. That change took out the rendering half by extracting Catalogue and brought the file under the cognitive-complexity limit. The state half stayed. App keeps the URL as the source of filter truth, because that genuinely belongs to the page: a reload, a shared link and the back button all have to restore the same view. What moves is the request, the debounce, and the auth negotiation — and that last one is the reason this is worth doing. The rule the comments explain at length, that firing before the session resolves would 401 and show an outage banner to someone who is in fact signed in, now has somewhere to live rather than being a pair of derived booleans in a page component. The hook decides when the favorites filter needs a session; the page decides what to do about it, through an onAuthRequired callback, because the prompt is a modal the page owns. The serialise-then-reparse of the filters is kept, with the reason written down rather than left to be rediscovered. Depending on a string is what keeps `load` referentially stable while the filters are value-equal, and `load` is what the debounce effect depends on — depending on the object would give a new `load` every render, restart the debounce each time, and fire a request per keystroke. The alternatives considered were a ref written during render and threading the key through the page, and both are worse than one honest comment. filterKey is returned rather than recomputed by the caller: the page needs exactly that value to reset the catalogue's error boundary, so a crashed grid gets another chance when the filters change. App.tsx is 300 lines. No behaviour change is intended, so the bar is the end-to-end suite unchanged — the storefront listing, the filters, the favorites-requires-sign-in prompt, the failure banner and the boundary reset all pass. Also removes what the extraction left dead in App.tsx: the useEffect import, the debounce constant, and `authLoading`, which existed only to decide whether to fire the request. Refs #98 |