2026-03-16 22:24:31 +00:00
7 changed files with 550 additions and 7 deletions
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -25,6 +25,7 @@
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        "lucide-react": "^0.563.0",
        "monaco-editor": "^0.55.1",
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        "react": "^19.2.0",
        "react-day-picker": "^9.13.1",
        "react-dom": "^19.2.0",
@@ -59,6 +60,9 @@
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        "vitest": "^4.0.18"
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    "node_modules/@acemir/cssom": {
@@ -1323,6 +1327,252 @@
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      }
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@@ -1338,6 +1588,85 @@
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@@ -3579,11 +3907,21 @@
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@@ -4435,6 +4773,12 @@
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@@ -5499,6 +5843,12 @@
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+      "version": "5.3.2",
+      "resolved": "https://registry.npmjs.org/long/-/long-5.3.2.tgz",
+      "integrity": "sha512-mNAgZ1GmyNhD7AuqnTG3/VQ26o760+ZYBPKjPvugO8+nLbYfX6TVpJPseBvopbdY+qpZ/lKUnmEc1LeZYS3QAA==",
+      "license": "Apache-2.0"
+    },
    "node_modules/longest-streak": {
      "version": "3.1.0",
      "resolved": "https://registry.npmjs.org/longest-streak/-/longest-streak-3.1.0.tgz",
@@ -6465,7 +6815,6 @@
      "version": "3.1.1",
      "resolved": "https://registry.npmjs.org/path-key/-/path-key-3.1.1.tgz",
      "integrity": "sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==",
-      "dev": true,
      "license": "MIT",
      "engines": {
        "node": ">=8"
@@ -6593,6 +6942,46 @@
        "node": "^10 || ^12 || >=14"
      }
    },
+    "node_modules/posthog-js": {
+      "version": "1.360.2",
+      "resolved": "https://registry.npmjs.org/posthog-js/-/posthog-js-1.360.2.tgz",
+      "integrity": "sha512-/Wed0mOuRUfyEGT/BRQaokCqBlxrEceE7MDT9A00lU5tXo443/2Pg9ZiqN5sucUluZF47hwGORpYPoVUt32UFw==",
+      "license": "SEE LICENSE IN LICENSE",
+      "dependencies": {
+        "@opentelemetry/api": "^1.9.0",
+        "@opentelemetry/api-logs": "^0.208.0",
+        "@opentelemetry/exporter-logs-otlp-http": "^0.208.0",
+        "@opentelemetry/resources": "^2.2.0",
+        "@opentelemetry/sdk-logs": "^0.208.0",
+        "@posthog/core": "1.23.4",
+        "@posthog/types": "1.360.2",
+        "core-js": "^3.38.1",
+        "dompurify": "^3.3.2",
+        "fflate": "^0.4.8",
+        "preact": "^10.28.2",
+        "query-selector-shadow-dom": "^1.0.1",
+        "web-vitals": "^5.1.0"
+      }
+    },
+    "node_modules/posthog-js/node_modules/dompurify": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.3.3.tgz",
+      "integrity": "sha512-Oj6pzI2+RqBfFG+qOaOLbFXLQ90ARpcGG6UePL82bJLtdsa6CYJD7nmiU8MW9nQNOtCHV3lZ/Bzq1X0QYbBZCA==",
+      "license": "(MPL-2.0 OR Apache-2.0)",
+      "optionalDependencies": {
+        "@types/trusted-types": "^2.0.7"
+      }
+    },
+    "node_modules/preact": {
+      "version": "10.29.0",
+      "resolved": "https://registry.npmjs.org/preact/-/preact-10.29.0.tgz",
+      "integrity": "sha512-wSAGyk2bYR1c7t3SZ3jHcM6xy0lcBcDel6lODcs9ME6Th++Dx2KU+6D3HD8wMMKGA8Wpw7OMd3/4RGzYRpzwRg==",
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/preact"
+      }
+    },
    "node_modules/prelude-ls": {
      "version": "1.2.1",
      "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.2.1.tgz",
@@ -6652,6 +7041,30 @@
        "url": "https://github.com/sponsors/wooorm"
      }
    },
+    "node_modules/protobufjs": {
+      "version": "7.5.4",
+      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-7.5.4.tgz",
+      "integrity": "sha512-CvexbZtbov6jW2eXAvLukXjXUW1TzFaivC46BpWc/3BpcCysb5Vffu+B3XHMm8lVEuy2Mm4XGex8hBSg1yapPg==",
+      "hasInstallScript": true,
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@protobufjs/aspromise": "^1.1.2",
+        "@protobufjs/base64": "^1.1.2",
+        "@protobufjs/codegen": "^2.0.4",
+        "@protobufjs/eventemitter": "^1.1.0",
+        "@protobufjs/fetch": "^1.1.0",
+        "@protobufjs/float": "^1.0.2",
+        "@protobufjs/inquire": "^1.1.0",
+        "@protobufjs/path": "^1.1.2",
+        "@protobufjs/pool": "^1.1.0",
+        "@protobufjs/utf8": "^1.1.0",
+        "@types/node": ">=13.7.0",
+        "long": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      }
+    },
    "node_modules/proxy-from-env": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
@@ -6668,6 +7081,12 @@
        "node": ">=6"
      }
    },
+    "node_modules/query-selector-shadow-dom": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/query-selector-shadow-dom/-/query-selector-shadow-dom-1.0.1.tgz",
+      "integrity": "sha512-lT5yCqEBgfoMYpf3F2xQRK7zEr1rhIIZuceDK6+xRkJQ4NMbHTwXqk4NkwDwQMNqXgG9r9fyHnzwNVs6zV5KRw==",
+      "license": "MIT"
+    },
    "node_modules/react": {
      "version": "19.2.4",
      "resolved": "https://registry.npmjs.org/react/-/react-19.2.4.tgz",
@@ -7092,7 +7511,6 @@
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
      "integrity": "sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "shebang-regex": "^3.0.0"
@@ -7105,7 +7523,6 @@
      "version": "3.0.0",
      "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
      "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
-      "dev": true,
      "license": "MIT",
      "engines": {
        "node": ">=8"
@@ -7521,7 +7938,6 @@
      "version": "7.16.0",
      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
      "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
-      "devOptional": true,
      "license": "MIT"
    },
    "node_modules/unified": {
@@ -7894,6 +8310,12 @@
        "node": ">=18"
      }
    },
+    "node_modules/web-vitals": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/web-vitals/-/web-vitals-5.1.0.tgz",
+      "integrity": "sha512-ArI3kx5jI0atlTtmV0fWU3fjpLmq/nD3Zr1iFFlJLaqa5wLBkUSzINwBPySCX/8jRyjlmy1Volw1kz1g9XE4Jg==",
+      "license": "Apache-2.0"
+    },
    "node_modules/webidl-conversions": {
      "version": "8.0.1",
      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-8.0.1.tgz",
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -37,6 +37,7 @@
    "immer": "^11.1.3",
    "lucide-react": "^0.563.0",
    "monaco-editor": "^0.55.1",
+    "posthog-js": "^1.360.2",
    "react": "^19.2.0",
    "react-day-picker": "^9.13.1",
    "react-dom": "^19.2.0",
@@ -50,8 +51,8 @@
    "zustand": "^5.0.10"
  },
  "devDependencies": {
-    "@playwright/test": "^1.55.0",
    "@eslint/js": "^9.39.1",
+    "@playwright/test": "^1.55.0",
    "@testing-library/jest-dom": "^6.9.1",
    "@testing-library/react": "^16.3.2",
    "@testing-library/user-event": "^14.6.1",
--- a/frontend/src/lib/analytics.ts
+++ b/frontend/src/lib/analytics.ts
@@ -0,0 +1,102 @@
+/**
+ * PostHog product analytics wrapper.
+ *
+ * Tracks key user actions to understand product usage, activation,
+ * and engagement. All events are lightweight discrete actions — no
+ * pageviews or mouse tracking.
+ *
+ * Free tier: 1M events/month (more than enough for current scale).
+ */
+import posthog from 'posthog-js'
+
+const POSTHOG_KEY = import.meta.env.VITE_POSTHOG_KEY as string | undefined
+const POSTHOG_HOST = (import.meta.env.VITE_POSTHOG_HOST as string) || 'https://us.i.posthog.com'
+
+let initialized = false
+
+/** Initialize PostHog. Call once on app startup. */
+export function initAnalytics() {
+  if (initialized || !POSTHOG_KEY) return
+  posthog.init(POSTHOG_KEY, {
+    api_host: POSTHOG_HOST,
+    autocapture: false,       // We track events explicitly — no auto-capture
+    capture_pageview: false,  // SPA — we'll track meaningful navigations, not every route
+    capture_pageleave: false,
+    persistence: 'localStorage',
+  })
+  initialized = true
+}
+
+/** Identify a logged-in user. Call after login/fetchUser. */
+export function identifyUser(user: {
+  id: string
+  email: string
+  role?: string
+  is_super_admin?: boolean
+  account_id?: string
+}) {
+  if (!initialized) return
+  posthog.identify(user.id, {
+    email: user.email,
+    role: user.role,
+    is_super_admin: user.is_super_admin,
+  })
+  if (user.account_id) {
+    posthog.group('account', user.account_id)
+  }
+}
+
+/** Reset identity on logout. */
+export function resetAnalytics() {
+  if (!initialized) return
+  posthog.reset()
+}
+
+// ─── Event Tracking ─────────────────────────────────────────────
+
+/** Track a named event with optional properties. */
+function track(event: string, properties?: Record<string, unknown>) {
+  if (!initialized) return
+  posthog.capture(event, properties)
+}
+
+// Activation events
+export const analytics = {
+  /** User created a new account */
+  accountCreated: () => track('account_created'),
+
+  /** User logged in successfully */
+  loginSuccess: () => track('login_success'),
+
+  /** User viewed a flow (opened the navigate page) */
+  flowViewed: (props: { flow_id: string; flow_type: string; flow_name: string }) =>
+    track('flow_viewed', props),
+
+  /** User started a session */
+  sessionStarted: (props: { session_id: string; flow_id: string; flow_type: string }) =>
+    track('session_started', props),
+
+  /** User completed a session */
+  sessionCompleted: (props: { session_id: string; flow_type: string; outcome: string }) =>
+    track('session_completed', props),
+
+  /** User generated an export (markdown, html, PDF, PSA) */
+  exportGenerated: (props: { session_id: string; format: string }) =>
+    track('export_generated', props),
+
+  /** User used an AI feature */
+  aiFeatureUsed: (props: { feature: 'copilot' | 'flow_assist' | 'session_to_flow' | 'kb_accelerator' | 'assistant_chat' }) =>
+    track('ai_feature_used', props),
+
+  /** User connected a PSA integration */
+  psaConnected: (props: { provider: string }) =>
+    track('psa_connected', props),
+
+  /** User created a shared session link */
+  sessionShared: (props: { session_id: string; visibility: string }) =>
+    track('session_shared', props),
+
+  /** User created a new flow */
+  flowCreated: (props: { flow_type: string; method: 'manual' | 'ai' | 'import' | 'session_to_flow' }) =>
+    track('flow_created', props),
+}
--- a/frontend/src/main.tsx
+++ b/frontend/src/main.tsx
@@ -1,4 +1,7 @@
 import "./instrument"; // Sentry must init before any other imports
+import { initAnalytics } from './lib/analytics'
+
+initAnalytics() // PostHog product analytics

 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
--- a/frontend/src/pages/ProceduralNavigationPage.tsx
+++ b/frontend/src/pages/ProceduralNavigationPage.tsx
@@ -31,6 +31,7 @@ import { TicketLinkIndicator } from '@/components/session/TicketLinkIndicator'
 import { UpdateTicketModal } from '@/components/session/UpdateTicketModal'
 import type { PSATicketInfo } from '@/types/integrations'
 import { addRecentFlow } from '@/lib/recentFlows'
+import { analytics } from '@/lib/analytics'
 import { useTicketContext } from '@/hooks/useTicketContext'
 import { TicketContextPanel } from '@/components/session/TicketContextPanel'

@@ -227,6 +228,7 @@ export function ProceduralNavigationPage() {
      }
      setTree(treeData)
      addRecentFlow({ id: treeData.id, name: treeData.name, tree_type: treeData.tree_type })
+      analytics.flowViewed({ flow_id: treeData.id, flow_type: treeData.tree_type, flow_name: treeData.name })

      // If resuming an existing session
      if (locationState?.sessionId) {
@@ -252,6 +254,7 @@ export function ProceduralNavigationPage() {
        session_variables: Object.keys(variables).length > 0 ? variables : undefined,
      })
      setSession(newSession)
+      analytics.sessionStarted({ session_id: newSession.id, flow_id: id, flow_type: treeData?.tree_type || 'procedural' })
      setSessionVariables(variables)

      // Initialize step states — use passed treeData since `tree` state may not have committed yet
@@ -401,6 +404,7 @@ export function ProceduralNavigationPage() {
        })
        setCompletedAt(completedTime)
        setIsComplete(true)
+        analytics.sessionCompleted({ session_id: session.id, flow_type: tree?.tree_type || 'procedural', outcome: 'resolved' })
        if (!hasBeenRated(session.id)) {
          setShowCsatModal(true)
        }
--- a/frontend/src/pages/TreeNavigationPage.tsx
+++ b/frontend/src/pages/TreeNavigationPage.tsx
@@ -28,6 +28,7 @@ import { TicketLinkIndicator } from '@/components/session/TicketLinkIndicator'
 import { UpdateTicketModal } from '@/components/session/UpdateTicketModal'
 import type { PSATicketInfo } from '@/types/integrations'
 import { addRecentFlow } from '@/lib/recentFlows'
+import { analytics } from '@/lib/analytics'
 import { useTicketContext } from '@/hooks/useTicketContext'
 import { TicketContextPanel } from '@/components/session/TicketContextPanel'

@@ -335,6 +336,7 @@ export function TreeNavigationPage() {

      setTree(treeData)
      addRecentFlow({ id: treeData.id, name: treeData.name, tree_type: treeData.tree_type })
+      analytics.flowViewed({ flow_id: treeData.id, flow_type: treeData.tree_type, flow_name: treeData.name })

      // If resuming a session
      if (locationState?.sessionId) {
@@ -367,6 +369,7 @@ export function TreeNavigationPage() {
        client_name: clientName || undefined,
      })
      setSession(newSession)
+      analytics.sessionStarted({ session_id: newSession.id, flow_id: tree.id, flow_type: tree.tree_type })
      // Initialize currentNodeId to the tree's actual root (may not be 'root')
      const rootId = tree.tree_structure?.id || 'root'
      setCurrentNodeId(rootId)
@@ -512,6 +515,7 @@ export function TreeNavigationPage() {
      }

      await sessionsApi.complete(session.id, data)
+      analytics.sessionCompleted({ session_id: session.id, flow_type: tree?.tree_type || 'troubleshooting', outcome: data.outcome })

      setShowOutcomeModal(false)
      setPendingCompletionDecision(null)
--- a/frontend/src/store/authStore.ts
+++ b/frontend/src/store/authStore.ts
@@ -3,6 +3,7 @@ import { persist } from 'zustand/middleware'
 import * as Sentry from '@sentry/react'
 import type { User, Token, UserCreate, UserLogin, Account, SubscriptionDetails } from '@/types'
 import { authApi } from '@/api/auth'
+import { identifyUser, resetAnalytics, analytics } from '@/lib/analytics'
 import { apiClient } from '@/api/client'
 import { clearCachedQuota } from '@/hooks/useCachedQuota'

@@ -49,6 +50,7 @@ export const useAuthStore = create<AuthState>()(

          // Fetch user info
          await get().fetchUser()
+          analytics.loginSuccess()
        } catch (error: unknown) {
          const axiosErr = error as { response?: { data?: { detail?: unknown } } }
          const rawDetail = axiosErr.response?.data?.detail
@@ -62,6 +64,7 @@ export const useAuthStore = create<AuthState>()(
        set({ isLoading: true, error: null })
        try {
          await authApi.register(data)
+          analytics.accountCreated()
          // After registration, log the user in
          await get().login({ email: data.email, password: data.password })
        } catch (error: unknown) {
@@ -83,6 +86,7 @@ export const useAuthStore = create<AuthState>()(
          localStorage.removeItem('refresh_token')
          clearCachedQuota()
          Sentry.setUser(null)
+          resetAnalytics()
          set({ user: null, token: null, account: null, subscription: null, isAuthenticated: false, error: null })
        }
      },
@@ -109,6 +113,9 @@ export const useAuthStore = create<AuthState>()(
          // Set Sentry user context for error attribution
          Sentry.setUser({ id: user.id, email: user.email })

+          // Identify user in PostHog for product analytics
+          identifyUser({ id: user.id, email: user.email, role: user.role, is_super_admin: user.is_super_admin, account_id: account?.id })
+
          set({ user, account, subscription, isLoading: false })
        } catch (error: unknown) {
          const message = error instanceof Error ? error.message : 'Failed to fetch user'