Matt
d3960af340
Four low-risk adds before the Zod 4 / drizzle-zod headliner: - @total-typescript/ts-reset: tightens TS stdlib types globally (JSON.parse → unknown, fetch().json() → unknown, .filter(Boolean) narrows, Set literals respect typed Set targets). Caught 179 latent type errors; fixed all production sites (8 files) and added `any` cast escape hatch in test files (ESLint exemption scoped to tests/). - web-vitals + /api/v1/internal/vitals endpoint + WebVitalsReporter client component: establishes Core Web Vitals baseline (LCP/INP/CLS/ FCP/TTFB) via navigator.sendBeacon. Required before optimisation work. - @hookform/devtools + FormDevtool wrapper: dev-only RHF state inspector, lazy-loaded via next/dynamic so the chunk is excluded from prod bundles entirely. - @tanstack/query-broadcast-client-experimental: cross-tab cache sync via BroadcastChannel — wired in query-provider.tsx, 1-liner. Audit doc updated with sections 35 + 36 (PDF stack overhaul + comprehensive second-pass package sweep) covering ~20 package adoption candidates and 4-5 deprecation candidates. Verified: tsc clean, vitest 1293/1293 pass. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
75 lines
2.5 KiB
TypeScript
75 lines
2.5 KiB
TypeScript
import { db } from '@/lib/db';
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import { currencyRates } from '@/lib/db/schema/system';
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import { eq, and } from 'drizzle-orm';
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import { CodedError } from '@/lib/errors';
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import { logger } from '@/lib/logger';
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import { fetchWithTimeout } from '@/lib/fetch-with-timeout';
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export async function getRate(from: string, to: string): Promise<number | null> {
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if (from === to) return 1;
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const rate = await db.query.currencyRates.findFirst({
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where: and(eq(currencyRates.baseCurrency, from), eq(currencyRates.targetCurrency, to)),
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});
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return rate ? Number(rate.rate) : null;
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}
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export async function convert(
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amount: number,
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from: string,
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to: string,
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): Promise<{ result: number; rate: number } | null> {
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const rate = await getRate(from, to);
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if (!rate) return null;
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return { result: Number((amount * rate).toFixed(2)), rate };
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}
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export async function refreshRates(): Promise<void> {
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try {
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const res = await fetchWithTimeout('https://api.frankfurter.dev/v1/latest?base=USD');
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if (!res.ok)
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throw new CodedError('INTERNAL', {
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internalMessage: `Frankfurter API error: ${res.status}`,
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});
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const data = (await res.json()) as { rates: Record<string, number> };
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const rates = data.rates;
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for (const [currency, rate] of Object.entries(rates)) {
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await db
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.insert(currencyRates)
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.values({
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baseCurrency: 'USD',
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targetCurrency: currency,
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rate: String(rate),
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source: 'frankfurter',
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fetchedAt: new Date(),
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})
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.onConflictDoUpdate({
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target: [currencyRates.baseCurrency, currencyRates.targetCurrency],
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set: { rate: String(rate), fetchedAt: new Date(), source: 'frankfurter' },
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});
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}
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// Store inverse rates for common conversions
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for (const [currency, rate] of Object.entries(rates)) {
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const inverse = 1 / rate;
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await db
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.insert(currencyRates)
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.values({
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baseCurrency: currency,
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targetCurrency: 'USD',
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rate: String(inverse.toFixed(6)),
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source: 'frankfurter',
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fetchedAt: new Date(),
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})
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.onConflictDoUpdate({
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target: [currencyRates.baseCurrency, currencyRates.targetCurrency],
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set: { rate: String(inverse.toFixed(6)), fetchedAt: new Date(), source: 'frankfurter' },
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});
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}
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logger.info({ rateCount: Object.keys(rates).length }, 'Currency rates refreshed');
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} catch (err) {
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logger.error({ err }, 'Failed to refresh currency rates');
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}
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}
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