29 lines
827 B
TypeScript
29 lines
827 B
TypeScript
// Stable per-device identifier used to add forensic context to audit logs.
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// Persisted in localStorage so the same browser/device reuses it across sessions.
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// NOTE: this identifies a device/browser, not a human — on a shared kiosk every
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// user of the same browser shares one id (intended: it distinguishes devices).
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const STORAGE_KEY = 'sirh-device-id'
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let cached: string | null = null
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export const useDeviceId = (): string | null => {
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if (!import.meta.client) {
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return null
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}
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if (cached) {
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return cached
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}
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try {
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let id = localStorage.getItem(STORAGE_KEY)
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if (!id) {
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id = crypto.randomUUID()
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localStorage.setItem(STORAGE_KEY, id)
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}
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cached = id
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return id
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} catch {
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// localStorage unavailable (private mode, disabled) — degrade gracefully.
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return null
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}
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}
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