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Math.max(0, Math.min(1, n)) : 1;\n}\n\n/** Drop nullish props and coerce values to strings (Application Insights properties are strings). */\nexport function cleanProperties(props?: TelemetryProperties): Record | undefined {\n if (!props) return undefined;\n const out: Record = {};\n for (const [k, v] of Object.entries(props)) {\n if (v !== undefined && v !== null) out[k] = String(v);\n }\n return Object.keys(out).length ? out : undefined;\n}\n\n/** Create a per-client debouncer keyed by an id. */\nexport function createDebouncer(): (id: string, fn: () => void, delayMs: number) => void {\n const timers = new Map>();\n return (id, fn, delayMs) => {\n const existing = timers.get(id);\n if (existing) clearTimeout(existing);\n timers.set(id, setTimeout(() => {\n timers.delete(id);\n fn();\n }, delayMs));\n };\n}\n","import type { ApplicationInsights } from '@microsoft/applicationinsights-web';\nimport type { Analytics, InitOptions } from './types';\nimport { clamp01, cleanProperties, createDebouncer, isBrowser } from './core';\n\n/**\n * Application Insights JavaScript SDK adapter — the same {@link Analytics} API\n * as the beacon client, but backed by `@microsoft/applicationinsights-web`\n * (install it as a dependency). Configured cookieless: `disableCookiesUsage`\n * plus no session/local storage, so there is no persistent identifier and no\n * consent banner is required. Returns a no-op client when disabled, outside a\n * browser, or when the peer dependency is missing.\n */\nexport async function initAppInsights(options: InitOptions): Promise {\n const debounce = createDebouncer();\n let enabled = options.enabled !== false && isBrowser() && !!options.connectionString;\n let ai: ApplicationInsights | null = null;\n\n if (enabled) {\n try {\n const mod = await import('@microsoft/applicationinsights-web');\n ai = new mod.ApplicationInsights({\n config: {\n connectionString: options.connectionString,\n disableCookiesUsage: true,\n enableSessionStorageBuffer: false,\n autoTrackPageVisitTime: true,\n enableAutoRouteTracking: false,\n disableAjaxTracking: true,\n disableFetchTracking: true,\n enableUnhandledPromiseRejectionTracking: true,\n samplingPercentage: Math.round(clamp01(options.samplingRate ?? 1) * 100),\n },\n });\n ai.loadAppInsights();\n if (options.cloudRole) {\n const role = options.cloudRole;\n ai.addTelemetryInitializer((item) => {\n const it = item as { tags?: Record };\n it.tags = it.tags || {};\n it.tags['ai.cloud.role'] = role;\n });\n }\n if (options.autoPageView !== false) ai.trackPageView();\n } catch {\n // Peer dependency missing or failed to load — degrade to a safe no-op.\n ai = null;\n enabled = false;\n }\n }\n\n const api: Analytics = {\n get enabled() {\n return enabled && !!ai;\n },\n setEnabled(next: boolean) {\n enabled = next && !!ai;\n },\n trackEvent(name, properties, measurements) {\n if (enabled) ai?.trackEvent({ name, properties: cleanProperties(properties), measurements });\n },\n trackPageView(name, uri, properties) {\n if (enabled) ai?.trackPageView({ name, uri, properties: cleanProperties(properties) });\n },\n trackChangeDebounced(name, key, delayMs = 700) {\n if (!enabled) return;\n debounce(`${name}::${key}`, () => api.trackEvent(name, { key }), delayMs);\n },\n flush() {\n ai?.flush();\n },\n };\n\n return api;\n}\n"]}