harukin-expo-dev-env
6c8b7f0344
- Added performance markers in `ndView.tsx` to track startup and rendering times. - Implemented caching logic for custom train data in `useAllTrainDiagram.tsx` with timestamps for data readiness. - Optimized station data retrieval in `useStationList.tsx` by creating indexes for faster access. - Refactored train delay data handling in `useTrainDelayData.tsx` to improve cleanup on unmount. - Introduced tests for shared in-flight requests and timetable cache functionality to ensure reliability.
72 lines
2.0 KiB
TypeScript
72 lines
2.0 KiB
TypeScript
type StartupData = Record<string, unknown> | undefined;
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const isDevelopment = typeof __DEV__ !== "undefined" && __DEV__;
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const startedAt = Date.now();
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const marks: Array<{ name: string; elapsedMs: number; data?: StartupData }> = [];
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const onceKeys = new Set<string>();
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const stateValues = new Map<string, string>();
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let reportTimers: ReturnType<typeof setTimeout>[] = [];
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const serialize = (data: StartupData): string => {
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if (data === undefined) return "";
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try {
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return ` data=${JSON.stringify(data)}`;
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} catch {
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return " data=<unserializable>";
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}
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};
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export const markStartup = (name: string, data?: StartupData): void => {
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if (!isDevelopment) return;
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const elapsedMs = Date.now() - startedAt;
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marks.push({ name, elapsedMs, data });
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console.log(`[STARTUP PERF] ${name} +${elapsedMs}ms${serialize(data)}`);
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};
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export const markStartupOnce = (
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key: string,
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name: string,
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data?: StartupData,
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): void => {
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if (!isDevelopment || onceKeys.has(key)) return;
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onceKeys.add(key);
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markStartup(name, data);
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};
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export const markStartupState = (
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key: string,
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name: string,
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data: StartupData,
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): void => {
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if (!isDevelopment) return;
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let serialized = "";
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try {
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serialized = JSON.stringify(data);
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} catch {
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serialized = "<unserializable>";
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}
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if (stateValues.get(key) === serialized) return;
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stateValues.set(key, serialized);
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markStartup(name, data);
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};
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export const scheduleStartupReports = (): void => {
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if (!isDevelopment || reportTimers.length > 0) return;
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reportTimers = [3000, 10000].map((delayMs) =>
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setTimeout(() => {
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const elapsedMs = Date.now() - startedAt;
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console.log(`[STARTUP PERF REPORT] t+${elapsedMs}ms`);
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for (const entry of marks) {
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console.log(
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` ${entry.name} +${entry.elapsedMs}ms${serialize(entry.data)}`,
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);
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}
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}, delayMs),
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);
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};
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export const isStartupScanActive = (windowMs = 15000): boolean =>
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isDevelopment && Date.now() - startedAt <= windowMs;
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markStartupOnce("scanner-loaded", "scanner module loaded");
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