@jillen/analytics/dist/index.js

Lightweight human-visit and Web Vitals analytics for React apps. Framework-agnostic core with a Next.js adapter.

"use client";
'use strict';

var isbot = require('isbot');
var react = require('react');
var webVitals = require('web-vitals');

// src/visitor-tracker.tsx

// src/analytics-host-utils.ts
function getSiteIdWithFallback(host) {
  if (host && host !== "unknown") {
    return host;
  }
  return "unknown";
}

// src/resource-classification.ts
function isStaticAsset(url) {
  const staticExtensions = [
    ".js",
    ".css",
    ".woff2",
    ".woff",
    ".ttf",
    ".png",
    ".jpg",
    ".jpeg",
    ".svg",
    ".webp",
    ".ico",
    ".gif",
    ".bmp"
  ];
  const staticPatterns = [
    "/_next/static/",
    "/static/",
    "/assets/",
    "/public/"
  ];
  if (staticExtensions.some((ext) => url.endsWith(ext))) {
    return true;
  }
  if (staticPatterns.some((pattern) => url.includes(pattern))) {
    return true;
  }
  return false;
}
function isDynamicEndpoint(url) {
  if (isStaticAsset(url)) {
    return false;
  }
  const dynamicPatterns = [
    "/api/",
    "/v1/",
    "/log/",
    "/analytics/",
    "/auth/",
    "/sign"
  ];
  if (url.includes("/dashboard") && !isStaticAsset(url)) {
    return true;
  }
  return dynamicPatterns.some((pattern) => url.includes(pattern));
}
function classifyResourcePhase(resource) {
  const totalRequests = (resource.initial_requests || 0) + (resource.dynamic_requests || 0);
  if (resource.initiator_type === "fetch" || resource.initiator_type === "xmlhttprequest") {
    if (totalRequests > 1 || isDynamicEndpoint(resource.name)) {
      return "dynamic";
    }
  }
  if ((resource.dynamic_requests || 0) > (resource.initial_requests || 0)) {
    return "dynamic";
  }
  if (isDynamicEndpoint(resource.name) && (resource.dynamic_requests || 0) > 0) {
    return "dynamic";
  }
  return "initial";
}

// src/performance-collector.ts
var globalWebVitals = {};
var webVitalsInitialized = false;
function roundCLS(value) {
  return Math.round(value * 1e3) / 1e3;
}
function sendMetricsToAnalytics(metric) {
  if (metric.name === "LCP") globalWebVitals.lcp = Math.round(metric.value);
  if (metric.name === "CLS") globalWebVitals.cls = roundCLS(metric.value);
  if (metric.name === "INP") globalWebVitals.inp = Math.round(metric.value);
}
function initializeWebVitals() {
  if (webVitalsInitialized || typeof window === "undefined") return;
  webVitalsInitialized = true;
  webVitals.onLCP(sendMetricsToAnalytics, { reportAllChanges: true });
  webVitals.onCLS(sendMetricsToAnalytics, { reportAllChanges: true });
  webVitals.onINP(sendMetricsToAnalytics, { reportAllChanges: true });
}
if (typeof window !== "undefined") {
  initializeWebVitals();
}
function calculatePerformanceGrade(m) {
  let score = 0;
  let maxScore = 3;
  if (m.total_page_load !== void 0 && m.total_page_load <= 2500) score++;
  if (m.lcp !== void 0 && m.lcp <= 2500) score++;
  if (m.cls !== void 0 && m.cls <= 0.1) score++;
  if (m.inp !== void 0) {
    maxScore++;
    if (m.inp <= 200) score++;
  }
  if (score / maxScore >= 0.75) return "good";
  if (score / maxScore >= 0.5) return "needs work";
  return "poor";
}
function calculateAsyncWindow(resources, loadEventEnd, maxWindowMs = 6e4) {
  const pageResources = resources.filter(
    (r) => r.startTime <= loadEventEnd + maxWindowMs
  );
  if (pageResources.length === 0) {
    return { start: void 0, end: void 0, duration: void 0, window: void 0 };
  }
  const start = Math.round(pageResources[0].startTime - loadEventEnd);
  const end = Math.round(Math.max(...pageResources.map((r) => r.responseEnd)) - loadEventEnd);
  const window2 = end - start;
  return { start, end, duration: end, window: window2 };
}
function getWebVitalsFromPerformanceAPI() {
  const perf = window.performance;
  const result = {};
  const lcpEntries = perf.getEntriesByType("largest-contentful-paint");
  if (lcpEntries.length > 0)
    result.lcp = Math.round(lcpEntries[lcpEntries.length - 1].startTime);
  let clsValue = 0;
  const layoutShiftEntries = perf.getEntriesByType("layout-shift");
  layoutShiftEntries.forEach((entry) => {
    const layoutEntry = entry;
    if (!layoutEntry.hadRecentInput && layoutEntry.value)
      clsValue += layoutEntry.value;
  });
  if (clsValue > 0) result.cls = roundCLS(clsValue);
  if (globalWebVitals.inp) result.inp = globalWebVitals.inp;
  return result;
}
function classifyResourcePhase2(resource) {
  resource.initial_requests + resource.dynamic_requests;
  const phase = classifyResourcePhase({
    initiator_type: resource.initiator_type,
    name: resource.name,
    initial_requests: resource.initial_requests,
    dynamic_requests: resource.dynamic_requests
  });
  return phase;
}
function selectRepresentativeResources(resourceMap) {
  const allResources = Object.values(resourceMap);
  for (const resource of allResources) {
    resource.primary_phase = classifyResourcePhase2(resource);
    resource.spans_both_phases = resource.initial_requests > 0 && resource.dynamic_requests > 0;
  }
  const byTypeAndPhase = {};
  for (const resource of allResources) {
    const type = resource.initiator_type;
    if (!byTypeAndPhase[type]) {
      byTypeAndPhase[type] = { initial: [], dynamic: [] };
    }
    if (resource.primary_phase === "dynamic") {
      byTypeAndPhase[type].dynamic.push(resource);
    } else {
      byTypeAndPhase[type].initial.push(resource);
    }
  }
  for (const type in byTypeAndPhase) {
    byTypeAndPhase[type].initial.sort((a, b) => b.total_duration - a.total_duration);
    byTypeAndPhase[type].dynamic.sort((a, b) => b.total_duration - a.total_duration);
  }
  const selected = [];
  const resourceTypeConfig = {
    // Usual suspects - often slow, capture more
    "fetch": { initial: 2, dynamic: 5 },
    // API calls
    "xmlhttprequest": { initial: 2, dynamic: 5 },
    // API calls
    "script": { initial: 3, dynamic: 3 },
    // JavaScript
    "img": { initial: 2, dynamic: 2 },
    // Images
    // Critical but often fast - ensure representation
    "stylesheet": { initial: 2, dynamic: 1 },
    // CSS files
    "link": { initial: 2, dynamic: 1 },
    // Fonts, preloads
    "font": { initial: 2, dynamic: 1 },
    // Web fonts
    // Less common but important to track
    "navigation": { initial: 1, dynamic: 0 },
    // Main document
    "other": { initial: 1, dynamic: 1 }
    // Miscellaneous
  };
  for (const [type, limits] of Object.entries(resourceTypeConfig)) {
    const groups = byTypeAndPhase[type];
    if (!groups) continue;
    if (groups.initial.length > 0) {
      const count = Math.min(limits.initial, groups.initial.length);
      selected.push(...groups.initial.slice(0, count));
    }
    if (groups.dynamic.length > 0) {
      const count = Math.min(limits.dynamic, groups.dynamic.length);
      selected.push(...groups.dynamic.slice(0, count));
    }
  }
  for (const [type, groups] of Object.entries(byTypeAndPhase)) {
    if (!resourceTypeConfig[type]) {
      if (groups.initial.length > 0) selected.push(groups.initial[0]);
      if (groups.dynamic.length > 0) selected.push(groups.dynamic[0]);
    }
  }
  if (selected.length < 15) {
    const missingTypes = ["stylesheet", "navigation", "img", "font"];
    for (const missingType of missingTypes) {
      const hasType = selected.some((r) => r.initiator_type === missingType);
      if (!hasType && byTypeAndPhase[missingType]) {
        const initialResources = byTypeAndPhase[missingType].initial;
        const dynamicResources = byTypeAndPhase[missingType].dynamic;
        if (initialResources.length > 0) {
          selected.push(initialResources[initialResources.length - 1]);
        } else if (dynamicResources.length > 0) {
          selected.push(dynamicResources[dynamicResources.length - 1]);
        }
      }
    }
  }
  return selected.sort((a, b) => b.total_duration - a.total_duration).slice(0, 35).map((r) => {
    const totalRequests = r.initial_requests + r.dynamic_requests;
    const result = {
      name: r.name,
      initiator_type: r.initiator_type,
      duration: Math.round(r.total_duration / totalRequests),
      transfer_size: Math.round(r.transfer_size / totalRequests),
      decoded_body_size: Math.round(r.decoded_body_size / totalRequests),
      domain: r.domain,
      time_since_load: r.time_since_load,
      is_async: r.primary_phase === "dynamic"
    };
    if (totalRequests > 1) {
      result.duplicate_count = totalRequests;
      result.initial_hits = r.initial_requests;
      result.dynamic_hits = r.dynamic_requests;
    }
    return result;
  });
}
function collectPerfMetrics() {
  if (typeof window === "undefined" || !window.performance) return null;
  const navigation = window.performance.getEntriesByType("navigation")[0];
  if (!navigation) return null;
  const resources = window.performance.getEntriesByType("resource");
  const totalSizeBytes = resources.reduce(
    (sum, r) => sum + (r.transferSize || r.encodedBodySize || r.decodedBodySize || 0),
    0
  );
  const webVitals = Object.keys(globalWebVitals).length > 0 ? globalWebVitals : getWebVitalsFromPerformanceAPI();
  const dnsLookup = navigation.domainLookupEnd > 0 && navigation.domainLookupStart > 0 ? Math.round(navigation.domainLookupEnd - navigation.domainLookupStart) : void 0;
  const tcpConnect = navigation.connectEnd > 0 && navigation.connectStart > 0 ? Math.round(navigation.connectEnd - navigation.connectStart) : void 0;
  const rawTtfb = navigation.responseStart - navigation.requestStart;
  const rawHtmlResponse = navigation.responseEnd - navigation.responseStart;
  const rawTotalPageLoad = navigation.loadEventEnd - navigation.fetchStart;
  const rawFrontendRender = navigation.loadEventEnd - navigation.responseStart;
  const ttfb = rawTtfb >= 0 ? Math.round(rawTtfb) : void 0;
  const htmlResponse = rawHtmlResponse >= 0 ? Math.round(rawHtmlResponse) : void 0;
  const totalPageLoad = rawTotalPageLoad >= 0 ? Math.round(rawTotalPageLoad) : void 0;
  let frontendRender;
  if (rawFrontendRender >= 0) {
    frontendRender = Math.round(rawFrontendRender);
    if (ttfb !== void 0 && htmlResponse !== void 0 && totalPageLoad !== void 0) {
      const maxFrontendRender = totalPageLoad - ttfb - htmlResponse;
      if (frontendRender > maxFrontendRender) {
        frontendRender = Math.max(0, maxFrontendRender);
      }
    }
  }
  const asyncResources = resources.filter((r) => r.startTime > navigation.loadEventEnd);
  const asyncTiming = calculateAsyncWindow(asyncResources, navigation.loadEventEnd, 6e4);
  const asyncTimelineStart = asyncTiming.start;
  const asyncTimelineEnd = asyncTiming.end;
  const asyncTimelineWindow = asyncTiming.window;
  const resourceMap = {};
  const asyncApiResources = asyncResources.filter(
    (r) => (r.initiatorType === "fetch" || r.initiatorType === "xmlhttprequest") && r.startTime <= navigation.loadEventEnd + 6e4
  );
  const asyncNonApiResources = asyncResources.filter(
    (r) => r.initiatorType !== "fetch" && r.initiatorType !== "xmlhttprequest" && r.startTime <= navigation.loadEventEnd + 6e4
  );
  const asyncApiDomains = {};
  const asyncApiEndpointsMap = {};
  let asyncApiSlowest;
  for (const r of asyncApiResources) {
    const duration = Math.round(r.responseEnd - r.startTime);
    const url = r.name.split("?")[0];
    const domain = new URL(r.name).hostname;
    if (!asyncApiDomains[domain]) {
      asyncApiDomains[domain] = { count: 0, totalDuration: 0 };
    }
    asyncApiDomains[domain].count += 1;
    asyncApiDomains[domain].totalDuration += duration;
    if (!asyncApiEndpointsMap[url]) {
      asyncApiEndpointsMap[url] = { duration: 0, count: 0 };
    }
    asyncApiEndpointsMap[url].duration += duration;
    asyncApiEndpointsMap[url].count += 1;
    if (!asyncApiSlowest || duration > asyncApiSlowest.duration) {
      asyncApiSlowest = { url, duration, domain };
    }
  }
  const asyncApiCount = asyncApiResources.length;
  const apiTiming = calculateAsyncWindow(asyncApiResources, navigation.loadEventEnd, 6e4);
  const asyncApiEnd = apiTiming.duration;
  let asyncApiParallelism;
  if (asyncApiCount > 0 && asyncApiEnd && asyncApiEnd > 0) {
    const medianApiTime = asyncApiResources.length > 0 ? asyncApiResources.map((r) => r.responseEnd - r.startTime).sort((a, b) => a - b)[Math.floor(asyncApiResources.length / 2)] : 0;
    if (medianApiTime > 0) {
      asyncApiParallelism = Math.round(asyncApiCount / (asyncApiEnd / medianApiTime) * 100) / 100;
    }
  }
  const asyncApiSlowestEndpoints = Object.entries(asyncApiEndpointsMap).map(([url, data]) => ({
    url,
    duration: Math.round(data.duration / data.count),
    count: data.count
  })).sort((a, b) => b.duration - a.duration).slice(0, 10);
  const asyncAssetByType = {};
  let asyncAssetDuration = 0;
  for (const r of asyncNonApiResources) {
    const duration = Math.round(r.responseEnd - r.startTime);
    const type = r.initiatorType || "other";
    if (!asyncAssetByType[type]) {
      asyncAssetByType[type] = { count: 0, totalDuration: 0 };
    }
    asyncAssetByType[type].count += 1;
    asyncAssetByType[type].totalDuration += duration;
    asyncAssetDuration += duration;
  }
  const asyncAssetCount = asyncNonApiResources.length;
  const asyncAssetSlowest = asyncNonApiResources.sort((a, b) => b.responseEnd - b.startTime - (a.responseEnd - a.startTime)).slice(0, 5).map((r) => ({
    name: r.name.split("?")[0],
    initiator_type: r.initiatorType,
    duration: Math.round(r.responseEnd - r.startTime)
  }));
  for (const r of resources) {
    const url = r.name.split("?")[0];
    const domain = new URL(r.name).hostname;
    const duration = Math.round(r.responseEnd - r.startTime);
    const timeSinceLoad = Math.round(r.startTime - navigation.loadEventEnd);
    const key = url;
    if (r.startTime > navigation.loadEventEnd + 6e4) {
      continue;
    }
    const isInitialRequest = r.startTime <= navigation.loadEventEnd + 1e3;
    if (!resourceMap[key]) {
      resourceMap[key] = {
        name: url,
        initiator_type: r.initiatorType,
        total_duration: 0,
        initial_requests: 0,
        dynamic_requests: 0,
        transfer_size: 0,
        decoded_body_size: 0,
        domain,
        first_start_time: r.startTime,
        last_start_time: r.startTime,
        time_since_load: timeSinceLoad,
        primary_phase: "initial",
        // Will be determined later
        spans_both_phases: false
      };
    }
    const rec = resourceMap[key];
    if (isInitialRequest) {
      rec.initial_requests += 1;
    } else {
      rec.dynamic_requests += 1;
    }
    rec.first_start_time = Math.min(rec.first_start_time, r.startTime);
    rec.last_start_time = Math.max(rec.last_start_time, r.startTime);
    rec.total_duration += duration;
    rec.transfer_size += r.transferSize || 0;
    rec.decoded_body_size += r.decodedBodySize || 0;
  }
  const selectedResources = selectRepresentativeResources(resourceMap);
  const topResources = selectedResources;
  return {
    page: window.location.pathname,
    dns_lookup: dnsLookup,
    tcp_connect: tcpConnect,
    ttfb,
    html_response: htmlResponse,
    frontend_render: frontendRender,
    total_page_load: totalPageLoad,
    lcp: webVitals.lcp,
    cls: webVitals.cls,
    inp: webVitals.inp,
    num_requests: resources.length,
    total_size_kb: Math.round(totalSizeBytes / 1024 * 10) / 10,
    performance_grade: calculatePerformanceGrade({
      total_page_load: totalPageLoad,
      lcp: webVitals.lcp,
      cls: webVitals.cls,
      inp: webVitals.inp
    }),
    top_resources: topResources,
    // Timeline positioning (relative to page load completion)
    async_timeline_start: asyncTimelineStart,
    async_timeline_end: asyncTimelineEnd,
    async_timeline_window: asyncTimelineWindow,
    // API timeline and analysis
    async_api_end: asyncApiEnd,
    async_api_count: asyncApiCount > 0 ? asyncApiCount : void 0,
    async_api_parallelism: asyncApiParallelism,
    async_api_domains: asyncApiCount > 0 ? asyncApiDomains : void 0,
    async_api_slowest_endpoints: asyncApiSlowestEndpoints.length > 0 ? asyncApiSlowestEndpoints : void 0,
    async_api_slowest: asyncApiSlowest,
    // Asset analysis (non-API resources)
    async_asset_duration: asyncAssetCount > 0 ? asyncAssetDuration : void 0,
    async_asset_count: asyncAssetCount > 0 ? asyncAssetCount : void 0,
    async_asset_by_type: asyncAssetCount > 0 ? asyncAssetByType : void 0,
    async_asset_slowest: asyncAssetSlowest.length > 0 ? asyncAssetSlowest : void 0,
    timestamp: (/* @__PURE__ */ new Date()).toISOString()
  };
}

// package.json
var package_default = {
  version: "5.0.0"};

// src/version.ts
var sdk_version = package_default.version;

// src/send.ts
async function sendHumanEvent(payload) {
  const endpoint = "https://analytics.jillen.com/api/human";
  const payloadWithVersion = {
    ...payload,
    sdk_version
  };
  const data = JSON.stringify(payloadWithVersion);
  try {
    const controller = new AbortController();
    const timeoutId = setTimeout(() => controller.abort(), 3e4);
    const response = await fetch(endpoint, {
      method: "POST",
      headers: {
        "Content-Type": "application/json"
      },
      mode: "cors",
      body: data,
      signal: controller.signal
    });
    clearTimeout(timeoutId);
    if (!response.ok) {
      console.error(
        `[Analytics] Server endpoint error: ${response.status} ${response.statusText} - human event failed`
      );
      return;
    }
  } catch (error) {
    if (error instanceof TypeError) {
      if (error.message.includes("fetch failed") || error.message.includes("network")) {
        console.error("[Analytics] Network connectivity error in human event:", error.message);
      } else {
        console.error("[Analytics] Request configuration error in human event:", error.message);
      }
    } else if (error instanceof DOMException && error.name === "AbortError") {
      console.error("[Analytics] Human event request timeout after 30 seconds");
    } else if (error instanceof Error) {
      console.error("[Analytics] Human event error:", error.name, error.message);
    } else {
      console.error("[Analytics] Unknown error in human event:", error);
    }
    return;
  }
}
async function sendPerformanceEvent(payload) {
  const endpoint = "https://analytics.jillen.com/api/perf";
  const payloadWithVersion = {
    ...payload,
    sdk_version
  };
  const data = JSON.stringify(payloadWithVersion);
  try {
    const controller = new AbortController();
    const timeoutId = setTimeout(() => controller.abort(), 3e4);
    const response = await fetch(endpoint, {
      method: "POST",
      headers: {
        "Content-Type": "application/json"
      },
      mode: "cors",
      body: data,
      signal: controller.signal
    });
    clearTimeout(timeoutId);
    if (!response.ok) {
      console.error(
        `[Performance] Server endpoint error: ${response.status} ${response.statusText} - performance event failed`
      );
      return;
    }
  } catch (error) {
    if (error instanceof TypeError) {
      if (error.message.includes("fetch failed") || error.message.includes("network")) {
        console.error(
          "[Performance] Network connectivity error in performance event:",
          error.message
        );
      } else {
        console.error(
          "[Performance] Request configuration error in performance event:",
          error.message
        );
      }
    } else if (error instanceof DOMException && error.name === "AbortError") {
      console.error("[Performance] Performance event request timeout after 30 seconds");
    } else if (error instanceof Error) {
      console.error("[Performance] Performance event error:", error.name, error.message);
    } else {
      console.error("[Performance] Unknown error in performance event:", error);
    }
    return;
  }
}

// src/storage-utils.ts
var ANALYTICS_STORAGE_PREFIX = "analytics_";
var DEFAULT_TTL = {
  VISITOR: 30 * 24 * 60 * 60 * 1e3
};
var AnalyticsStorage = class {
  static setItem(key, value, ttlMs = DEFAULT_TTL.VISITOR) {
    if (!this.isClient) return false;
    try {
      const item = {
        value,
        expiry: Date.now() + ttlMs
      };
      localStorage.setItem(
        `${ANALYTICS_STORAGE_PREFIX}${key}`,
        JSON.stringify(item)
      );
      return true;
    } catch (error) {
      console.warn("[Analytics] Failed to set localStorage item:", error);
      return false;
    }
  }
  static getItem(key) {
    if (!this.isClient) return null;
    try {
      const itemStr = localStorage.getItem(`${ANALYTICS_STORAGE_PREFIX}${key}`);
      if (!itemStr) return null;
      const item = JSON.parse(itemStr);
      if (Date.now() > item.expiry) {
        localStorage.removeItem(`${ANALYTICS_STORAGE_PREFIX}${key}`);
        return null;
      }
      return item.value;
    } catch (error) {
      console.warn("[Analytics] Failed to get localStorage item:", error);
      return null;
    }
  }
  static removeItem(key) {
    if (!this.isClient) return;
    try {
      localStorage.removeItem(`${ANALYTICS_STORAGE_PREFIX}${key}`);
    } catch (error) {
      console.warn("[Analytics] Failed to remove localStorage item:", error);
    }
  }
  static setVisitor(visitorId) {
    return this.setItem(
      `visitor_${visitorId}`,
      Date.now(),
      DEFAULT_TTL.VISITOR
    );
  }
  static hasVisitor(visitorId) {
    return this.getItem(`visitor_${visitorId}`) !== null;
  }
  static cleanupOldSessionEntries() {
    if (!this.isClient) return 0;
    let cleanedCount = 0;
    const obsoletePrefixes = [
      `${ANALYTICS_STORAGE_PREFIX}session_start_`,
      `${ANALYTICS_STORAGE_PREFIX}session_active_`
    ];
    try {
      const keys = Object.keys(localStorage);
      for (const key of keys) {
        for (const prefix of obsoletePrefixes) {
          if (key.startsWith(prefix)) {
            localStorage.removeItem(key);
            cleanedCount++;
            break;
          }
        }
      }
    } catch (error) {
      console.warn("[Analytics] Failed to cleanup old session entries:", error);
    }
    return cleanedCount;
  }
  static cleanupExpiredItems() {
    if (!this.isClient) return 0;
    let cleanedCount = 0;
    try {
      const keys = Object.keys(localStorage);
      const now = Date.now();
      for (const key of keys) {
        if (!key.startsWith(ANALYTICS_STORAGE_PREFIX)) continue;
        try {
          const itemStr = localStorage.getItem(key);
          if (!itemStr) continue;
          const item = JSON.parse(itemStr);
          if (item.expiry && now > item.expiry) {
            localStorage.removeItem(key);
            cleanedCount++;
          }
        } catch {
          localStorage.removeItem(key);
          cleanedCount++;
        }
      }
    } catch (error) {
      console.warn("[Analytics] Failed to cleanup expired items:", error);
    }
    return cleanedCount;
  }
  static migrateOldFormat() {
    if (!this.isClient) return 0;
    let migratedCount = 0;
    const oldPrefixes = [
      "analytics_visitor_",
      "analytics_session_start_",
      "analytics_session_active_"
    ];
    try {
      const keys = Object.keys(localStorage);
      for (const key of keys) {
        for (const prefix of oldPrefixes) {
          if (key.startsWith(prefix)) {
            const value = localStorage.getItem(key);
            if (value && !value.includes('"expiry":')) {
              localStorage.removeItem(key);
              migratedCount++;
              const keyParts = key.replace(prefix, "").split("_");
              if (prefix === "analytics_visitor_" && keyParts.length > 0) {
                const timestamp = parseInt(value);
                if (!isNaN(timestamp) && Date.now() - timestamp < DEFAULT_TTL.VISITOR) {
                  this.setVisitor(keyParts.join("_"));
                }
              }
            }
          }
        }
      }
    } catch (error) {
      console.warn("[Analytics] Failed to migrate old format:", error);
    }
    return migratedCount;
  }
  static getStorageSize() {
    if (!this.isClient) return { count: 0, sizeBytes: 0 };
    let count = 0;
    let sizeBytes = 0;
    try {
      const keys = Object.keys(localStorage);
      for (const key of keys) {
        if (key.startsWith(ANALYTICS_STORAGE_PREFIX)) {
          count++;
          const value = localStorage.getItem(key) || "";
          sizeBytes += key.length + value.length;
        }
      }
    } catch (error) {
      console.warn("[Analytics] Failed to calculate storage size:", error);
    }
    return { count, sizeBytes };
  }
};
AnalyticsStorage.isClient = typeof window !== "undefined";
var AnalyticsSessionStorage = class {
  static setItem(key, value) {
    if (!this.isClient) return false;
    try {
      sessionStorage.setItem(
        `${ANALYTICS_STORAGE_PREFIX}${key}`,
        JSON.stringify(value)
      );
      return true;
    } catch (error) {
      console.warn("[Analytics] Failed to set sessionStorage item:", error);
      return false;
    }
  }
  static getItem(key) {
    if (!this.isClient) return null;
    try {
      const itemStr = sessionStorage.getItem(
        `${ANALYTICS_STORAGE_PREFIX}${key}`
      );
      if (!itemStr) return null;
      return JSON.parse(itemStr);
    } catch (error) {
      console.warn("[Analytics] Failed to get sessionStorage item:", error);
      return null;
    }
  }
  static removeItem(key) {
    if (!this.isClient) return;
    try {
      sessionStorage.removeItem(`${ANALYTICS_STORAGE_PREFIX}${key}`);
    } catch (error) {
      console.warn("[Analytics] Failed to remove sessionStorage item:", error);
    }
  }
};
AnalyticsSessionStorage.isClient = typeof window !== "undefined";

// src/visitor-tracker.tsx
function generateVisitorId(username) {
  if (username && username.trim() !== "") {
    const cleanUsername = username.trim().toLowerCase().replace(/\s+/g, "-").replace(/[^a-z0-9-]/g, "").replace(/-+/g, "-").replace(/^-+|-+$/g, "").substring(0, 50) || "unknown-user";
    AnalyticsStorage.setItem("visitor_id", cleanUsername);
    return cleanUsername;
  }
  const stored = AnalyticsStorage.getItem("visitor_id");
  if (stored && !stored.includes("@") && stored !== "unknown-user") {
    return stored;
  }
  const fingerprint = [
    navigator.userAgent || "unknown",
    navigator.language || "unknown",
    `${screen.width}x${screen.height}`,
    navigator.hardwareConcurrency || "unknown",
    Intl.DateTimeFormat().resolvedOptions().timeZone || "unknown"
  ].join("|");
  let hash = 0;
  for (let i = 0; i < fingerprint.length; i++) {
    const char = fingerprint.charCodeAt(i);
    hash = (hash << 5) - hash + char;
    hash = hash & hash;
  }
  const visitorId = Math.abs(hash).toString(36);
  AnalyticsStorage.setItem("visitor_id", visitorId);
  return visitorId;
}
function generateSessionId() {
  if (typeof window !== "undefined") {
    const sessionData = AnalyticsSessionStorage.getItem("session_data");
    if (sessionData?.session_id) {
      const now2 = Date.now();
      const timeSinceActivity = now2 - sessionData.last_activity;
      const SESSION_TIMEOUT = 30 * 60 * 1e3;
      if (timeSinceActivity < SESSION_TIMEOUT) {
        return { sessionId: sessionData.session_id, isNewSession: false };
      }
      AnalyticsSessionStorage.removeItem("session_data");
    }
  }
  const generateLightweightId = () => {
    try {
      const array = new Uint8Array(4);
      crypto.getRandomValues(array);
      const timestamp = Date.now().toString(36).slice(-4);
      const randomPart = Array.from(array).map((byte) => byte.toString(36)).join("").slice(0, 4);
      return `${timestamp}${randomPart}`.substring(0, 8);
    } catch {
      const timestamp = Date.now().toString(36).slice(-4);
      const randomPart = Math.random().toString(36).substring(2, 6);
      return `${timestamp}${randomPart}`.substring(0, 8);
    }
  };
  const newSessionId = generateLightweightId();
  const now = Date.now();
  if (typeof window !== "undefined") {
    AnalyticsSessionStorage.setItem("session_data", {
      session_id: newSessionId,
      last_activity: now
    });
  }
  return { sessionId: newSessionId, isNewSession: true };
}
function getClientData(username) {
  if (typeof window === "undefined") {
    return {
      isNewVisitor: true,
      screenResolution: null,
      viewportSize: null,
      connectionType: null,
      clientTimeZone: null,
      sessionStartTime: (/* @__PURE__ */ new Date()).toISOString(),
      isNewSession: true
    };
  }
  const visitorId = generateVisitorId(username);
  const { sessionId, isNewSession } = generateSessionId();
  let isNewVisitor;
  if (username && username.trim() !== "") {
    isNewVisitor = false;
  } else {
    const visitorCacheKey = `isNewVisitor_${visitorId}`;
    const cachedIsNewVisitor = AnalyticsSessionStorage.getItem(visitorCacheKey);
    if (cachedIsNewVisitor === null) {
      const visitorExists = AnalyticsStorage.hasVisitor(visitorId);
      isNewVisitor = !visitorExists;
      AnalyticsSessionStorage.setItem(visitorCacheKey, isNewVisitor);
      if (isNewVisitor) {
        AnalyticsStorage.setVisitor(visitorId);
      }
    } else {
      isNewVisitor = cachedIsNewVisitor;
    }
  }
  let sessionStartTime = AnalyticsSessionStorage.getItem(
    `session_start_${sessionId}`
  );
  if (!sessionStartTime) {
    sessionStartTime = (/* @__PURE__ */ new Date()).toISOString();
    AnalyticsSessionStorage.setItem(
      `session_start_${sessionId}`,
      sessionStartTime
    );
  }
  const screenResolution = `${screen.width}x${screen.height}`;
  const viewportSize = `${window.innerWidth}x${window.innerHeight}`;
  const isMobile = /Mobile|Android|iPhone|iPad/.test(navigator.userAgent);
  const connectionType = isMobile ? "mobile" : "desktop";
  const clientTimeZone = Intl.DateTimeFormat().resolvedOptions().timeZone;
  return {
    isNewVisitor,
    screenResolution,
    viewportSize,
    connectionType,
    clientTimeZone,
    sessionStartTime,
    isNewSession
  };
}
function VisitorTracker({
  username,
  pathname: rawPathname
}) {
  const pathnameInvalid = typeof rawPathname !== "string";
  const pathname = pathnameInvalid ? "" : rawPathname;
  const warnedRef = react.useRef(false);
  react.useEffect(() => {
    if (pathnameInvalid && !warnedRef.current && typeof window !== "undefined") {
      warnedRef.current = true;
      console.error(
        "[Analytics] VisitorTracker requires a `pathname` prop. For Next.js, import from '@jillen/analytics/next' (auto-pathname). For other routers, pass `pathname` from your router state (e.g. `useLocation().pathname` from react-router-dom)."
      );
    }
  }, [pathnameInvalid]);
  const isInitialized = react.useRef(false);
  const lastTrackedPath = react.useRef(pathname);
  const heartbeatInterval = react.useRef(void 0);
  const heartbeatEnabled = react.useRef(true);
  const currentInterval = react.useRef(15e3);
  const isActive = react.useRef(true);
  const perfEventSent = react.useRef(false);
  const sentEventsCache = react.useRef(/* @__PURE__ */ new Map());
  const DEDUPE_WINDOW_MS = 100;
  const isBot = react.useCallback(() => {
    if (typeof navigator !== "undefined" && isbot.isbot(navigator.userAgent)) {
      return true;
    }
    return false;
  }, []);
  const updateLastActivity = react.useCallback(() => {
    if (typeof window !== "undefined") {
      const sessionData = AnalyticsSessionStorage.getItem("session_data");
      if (sessionData) {
        sessionData.last_activity = Date.now();
        AnalyticsSessionStorage.setItem("session_data", sessionData);
      }
    }
  }, []);
  const sendPerfEvent = react.useCallback(async () => {
    if (perfEventSent.current) {
      return;
    }
    perfEventSent.current = true;
    setTimeout(async () => {
      try {
        const siteId = getSiteIdWithFallback(window.location.hostname);
        const visitorId = generateVisitorId(username);
        const perfMetrics = collectPerfMetrics();
        if (!perfMetrics) return;
        if (siteId === "analytics.jillen.com" && perfMetrics.page.includes("/performance/")) {
          return;
        }
        const payload = {
          ...perfMetrics,
          website_domain: siteId,
          visitor_id: visitorId
        };
        await sendPerformanceEvent(payload);
      } catch (error) {
        console.error("[Performance] Error sending perf event:", error);
      }
    }, 1e3);
  }, [username]);
  const sendEvent = react.useCallback(
    async (eventType, referrer) => {
      if (process.env.NODE_ENV !== "production") {
        return;
      }
      const siteId = getSiteIdWithFallback(window.location.hostname);
      const { sessionId } = generateSessionId();
      const dedupeKey = `${sessionId}_${eventType}_${pathname}`;
      const now = Date.now();
      const lastSent = sentEventsCache.current.get(dedupeKey);
      if (lastSent && now - lastSent < DEDUPE_WINDOW_MS) {
        return;
      }
      sentEventsCache.current.set(dedupeKey, now);
      if (sentEventsCache.current.size > 50) {
        const oldestKey = sentEventsCache.current.keys().next().value;
        if (oldestKey) {
          sentEventsCache.current.delete(oldestKey);
        }
      }
      if (eventType === "pageview") {
        sendPerfEvent();
      }
      try {
        const clientData = getClientData(username);
        const visitorId = generateVisitorId(username);
        const payload = {
          website_domain: siteId,
          path: pathname,
          visitor_id: visitorId,
          session_id: sessionId,
          event_type: eventType,
          is_new_visitor: clientData.isNewVisitor,
          screen_resolution: clientData.screenResolution,
          viewport_size: clientData.viewportSize,
          connection_type: clientData.connectionType,
          client_time_zone: clientData.clientTimeZone,
          session_start_time: clientData.sessionStartTime,
          visitor_name: username ?? void 0,
          referrer
        };
        await sendHumanEvent(payload);
      } catch (error) {
        console.error("[Analytics] Error sending event:", error);
      }
    },
    [pathname, username, sendPerfEvent]
  );
  const scheduleNextHeartbeat = react.useCallback(() => {
    if (!heartbeatEnabled.current || typeof window === "undefined") return;
    if (heartbeatInterval.current) {
      return;
    }
    heartbeatInterval.current = setTimeout(() => {
      heartbeatInterval.current = void 0;
      const sessionData = AnalyticsSessionStorage.getItem("session_data");
      const timeSinceActivity = sessionData ? Date.now() - sessionData.last_activity : 0;
      const inactivityThreshold = 2 * 60 * 1e3;
      const SESSION_TIMEOUT = 30 * 60 * 1e3;
      if (timeSinceActivity >= SESSION_TIMEOUT) {
        heartbeatEnabled.current = false;
        return;
      }
      if (timeSinceActivity < inactivityThreshold) {
        sendEvent("heartbeat");
      }
      const intervals = [15e3, 6e4, 5 * 60 * 1e3, 15 * 60 * 1e3];
      const currentIndex = intervals.indexOf(currentInterval.current);
      if (currentIndex !== -1 && currentIndex < intervals.length - 1) {
        currentInterval.current = intervals[currentIndex + 1];
      }
      scheduleNextHeartbeat();
    }, currentInterval.current);
  }, [sendEvent]);
  const handleActivity = react.useCallback(() => {
    const now = Date.now();
    isActive.current = true;
    const sessionData = AnalyticsSessionStorage.getItem("session_data");
    const timeSinceActivity = sessionData ? now - sessionData.last_activity : Infinity;
    const SESSION_TIMEOUT = 30 * 60 * 1e3;
    if (timeSinceActivity > SESSION_TIMEOUT) {
      const { isNewSession } = generateSessionId();
      if (isNewSession) {
        sendEvent("session_start");
        sendEvent("pageview");
      }
      heartbeatEnabled.current = true;
    }
    updateLastActivity();
    currentInterval.current = 15e3;
    if (heartbeatEnabled.current) {
      scheduleNextHeartbeat();
    }
  }, [scheduleNextHeartbeat, sendEvent, updateLastActivity]);
  const throttleRef = react.useRef({ lastExecTime: 0 });
  const throttledHandleActivity = react.useCallback(() => {
    const delay = 250;
    const currentTime = Date.now();
    if (currentTime - throttleRef.current.lastExecTime > delay) {
      handleActivity();
      throttleRef.current.lastExecTime = currentTime;
    } else {
      if (throttleRef.current.timeoutId) {
        clearTimeout(throttleRef.current.timeoutId);
      }
      throttleRef.current.timeoutId = setTimeout(() => {
        handleActivity();
        throttleRef.current.lastExecTime = Date.now();
      }, delay - (currentTime - throttleRef.current.lastExecTime));
    }
  }, [handleActivity]);
  react.useEffect(() => {
    if (heartbeatInterval.current) {
      clearTimeout(heartbeatInterval.current);
      heartbeatInterval.current = void 0;
    }
    if (lastTrackedPath.current !== pathname) {
      perfEventSent.current = false;
    }
    if (pathnameInvalid) return;
    if (process.env.NODE_ENV !== "production") return;
    if (isBot()) {
      return;
    }
    const clientData = getClientData(username);
    const isNewSession = clientData.isNewSession;
    if (isNewSession && !isInitialized.current) {
      sendEvent("session_start");
      isInitialized.current = true;
    }
    if (isNewSession || lastTrackedPath.current !== pathname) {
      updateLastActivity();
      const referrer = typeof window !== "undefined" && document.referrer && document.referrer.length > 0 ? document.referrer : void 0;
      sendEvent("pageview", referrer);
      lastTrackedPath.current = pathname;
    }
    if (typeof window !== "undefined") {
      const events = [
        "click",
        "keydown",
        "touchstart",
        "scroll",
        "wheel",
        "play",
        "pause",
        "seeked",
        "volumechange",
        "input",
        "change",
        "focus",
        "copy",
        "cut",
        "paste"
      ];
      events.forEach((event) => {
        window.addEventListener(event, throttledHandleActivity, {
          passive: true
        });
      });
      const handleVisibilityChange = () => {
        if (document.hidden) {
          heartbeatEnabled.current = false;
          if (heartbeatInterval.current) {
            clearTimeout(heartbeatInterval.current);
            heartbeatInterval.current = void 0;
          }
        } else {
          heartbeatEnabled.current = true;
          isActive.current = true;
          scheduleNextHeartbeat();
        }
      };
      document.addEventListener("visibilitychange", handleVisibilityChange);
      scheduleNextHeartbeat();
      return () => {
        events.forEach((event) => {
          window.removeEventListener(event, throttledHandleActivity);
        });
        document.removeEventListener(
          "visibilitychange",
          handleVisibilityChange
        );
        if (heartbeatInterval.current) {
          clearTimeout(heartbeatInterval.current);
        }
      };
    }
    return void 0;
  }, [
    pathname,
    username,
    isBot,
    // Start the dynamic heartbeat system
    scheduleNextHeartbeat,
    sendEvent,
    throttledHandleActivity,
    updateLastActivity
  ]);
  return null;
}

exports.VisitorTracker = VisitorTracker;
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