adilallo
32 lines
1.1 KiB
TypeScript
32 lines
1.1 KiB
TypeScript
/**
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* Web vitals persistence mode (CR-80). Default: external in production, local in dev.
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* Does not require a specific observability vendor — ops can pipe structured logs to any stack.
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*/
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export type WebVitalsStorageMode = "external" | "local";
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const VALID: WebVitalsStorageMode[] = ["external", "local"];
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function normalizeEnv(
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raw: string | undefined,
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): WebVitalsStorageMode | undefined {
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const v = raw?.trim().toLowerCase();
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if (v === "external" || v === "local") return v;
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if (v === "database") {
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// Reserved for Ticket 9 option C — not implemented yet; safe default.
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return "external";
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}
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return undefined;
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}
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/**
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* Resolves storage mode from `WEB_VITALS_STORAGE` or defaults:
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* - `production` → `external` (no `.next` writes; ingest logs only)
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* - otherwise → `local` (file-based under `.next/web-vitals` for dev/admin)
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*/
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export function getWebVitalsStorageMode(): WebVitalsStorageMode {
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const fromEnv = normalizeEnv(process.env.WEB_VITALS_STORAGE);
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if (fromEnv && VALID.includes(fromEnv)) return fromEnv;
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return process.env.NODE_ENV === "production" ? "external" : "local";
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}
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