feat: Platform Acceleration + A/B Testing Framework

Platform Acceleration Phase 1:
- @bytelyst/sync package: Offline-first sync engine with conflict resolution
  - Storage adapters: LocalStorage, InMemory, MMKV
  - Deduplication, retry with backoff, auto-flush on reconnect
  - 12 comprehensive tests
- @bytelyst/dashboard-components package: Shared React components
  - ErrorPage, NotFoundPage, LoadingSpinner, LoadingSkeleton, EmptyState, PageHeader
  - Theme-aware with CSS custom properties

A/B Testing Framework (Complete):
- Admin UI at /ops/ab-testing with experiments list, variant performance, AI suggestions
- Sidebar navigation with Beaker icon
- 40 tests passing in ab-testing module

All 909 platform-service tests pass.
This commit is contained in:
saravanakumardb1 2026-03-03 19:47:47 -08:00
parent 7e3de866d3
commit 359d6e18a5
24 changed files with 14003 additions and 2289 deletions

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@ -0,0 +1,408 @@
'use client';
import { useState, useEffect } from 'react';
import { useRouter } from 'next/navigation';
import { PageHeader } from '@/components/PageHeader';
import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { Badge } from '@/components/ui/badge';
import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
import { LoadingSpinner } from '@/components/LoadingSpinner';
import { EmptyState } from '@/components/EmptyState';
import {
Beaker,
Plus,
Play,
Square,
BarChart3,
Target,
Users,
TrendingUp,
AlertTriangle,
CheckCircle2,
} from 'lucide-react';
interface Experiment {
id: string;
name: string;
description: string;
status: 'draft' | 'running' | 'paused' | 'stopped' | 'completed';
totalParticipants: number;
totalEvents: number;
primaryMetric: {
name: string;
type: string;
};
allocationStrategy: string;
createdAt: string;
startedAt?: string;
completedAt?: string;
}
interface Variant {
id: string;
name: string;
isControl: boolean;
currentAllocationPercent: number;
stats: {
participants: number;
events: number;
primaryMetricValue: number;
};
bayesianResults?: {
probabilityBeatsControl: number;
expectedLiftPercent: number;
};
}
export default function ABTestingPage() {
const router = useRouter();
const [experiments, setExperiments] = useState<Experiment[]>([]);
const [loading, setLoading] = useState(true);
const [selectedExperiment, setSelectedExperiment] = useState<Experiment | null>(null);
const [variants, setVariants] = useState<Variant[]>([]);
useEffect(() => {
loadExperiments();
}, []);
const loadExperiments = async () => {
try {
const res = await fetch('/api/ab-testing/experiments');
if (res.ok) {
const data = await res.json();
setExperiments(data);
}
} catch (error) {
console.error('Failed to load experiments:', error);
} finally {
setLoading(false);
}
};
const loadVariants = async (experimentId: string) => {
try {
const res = await fetch(`/api/ab-testing/experiments/${experimentId}/variants`);
if (res.ok) {
const data = await res.json();
setVariants(data);
}
} catch (error) {
console.error('Failed to load variants:', error);
}
};
const handleExperimentClick = (exp: Experiment) => {
setSelectedExperiment(exp);
loadVariants(exp.id);
};
const handleCreateExperiment = () => {
router.push('/ops/ab-testing/new');
};
const handleStartExperiment = async (id: string) => {
try {
const res = await fetch(`/api/ab-testing/experiments/${id}/start`, { method: 'POST' });
if (res.ok) {
loadExperiments();
}
} catch (error) {
console.error('Failed to start experiment:', error);
}
};
const handleStopExperiment = async (id: string) => {
try {
const res = await fetch(`/api/ab-testing/experiments/${id}/stop`, { method: 'POST' });
if (res.ok) {
loadExperiments();
}
} catch (error) {
console.error('Failed to stop experiment:', error);
}
};
const getStatusBadge = (status: Experiment['status']) => {
const variants = {
draft: { variant: 'secondary', label: 'Draft' },
running: { variant: 'default', label: 'Running' },
paused: { variant: 'warning', label: 'Paused' },
stopped: { variant: 'destructive', label: 'Stopped' },
completed: { variant: 'success', label: 'Completed' },
};
const config = variants[status];
// eslint-disable-next-line @typescript-eslint/no-explicit-any
return <Badge variant={config.variant as any}>{config.label}</Badge>;
};
if (loading) {
return (
<div className="flex items-center justify-center h-64">
<LoadingSpinner size="lg" />
</div>
);
}
return (
<div className="space-y-6">
<PageHeader
title="A/B Testing"
breadcrumbs={[{ label: 'Ops', href: '/ops' }, { label: 'A/B Testing' }]}
actions={
<Button onClick={handleCreateExperiment}>
<Plus className="w-4 h-4 mr-2" />
New Experiment
</Button>
}
/>
<Tabs defaultValue="experiments">
<TabsList>
<TabsTrigger value="experiments">Experiments</TabsTrigger>
<TabsTrigger value="results">Results</TabsTrigger>
<TabsTrigger value="suggestions">AI Suggestions</TabsTrigger>
</TabsList>
<TabsContent value="experiments" className="space-y-4">
{experiments.length === 0 ? (
<EmptyState
icon={<Beaker className="w-8 h-8 text-gray-500" />}
title="No experiments yet"
description="Create your first A/B test to start optimizing your product."
action={{
label: 'Create Experiment',
onClick: handleCreateExperiment,
}}
/>
) : (
<div className="grid gap-4">
{experiments.map(exp => (
<Card
key={exp.id}
className={`cursor-pointer transition-colors ${
selectedExperiment?.id === exp.id ? 'border-blue-500' : 'hover:border-gray-400'
}`}
onClick={() => handleExperimentClick(exp)}
>
<CardHeader className="pb-3">
<div className="flex items-center justify-between">
<div className="flex items-center gap-3">
<Beaker className="w-5 h-5 text-blue-500" />
<div>
<CardTitle className="text-lg">{exp.name}</CardTitle>
<p className="text-sm text-gray-500">{exp.description}</p>
</div>
</div>
<div className="flex items-center gap-2">
{getStatusBadge(exp.status)}
{exp.status === 'draft' && (
<Button
size="sm"
onClick={e => {
e.stopPropagation();
handleStartExperiment(exp.id);
}}
>
<Play className="w-4 h-4 mr-1" />
Start
</Button>
)}
{exp.status === 'running' && (
<Button
size="sm"
variant="destructive"
onClick={e => {
e.stopPropagation();
handleStopExperiment(exp.id);
}}
>
<Square className="w-4 h-4 mr-1" />
Stop
</Button>
)}
</div>
</div>
</CardHeader>
<CardContent>
<div className="grid grid-cols-4 gap-4 text-sm">
<div>
<div className="text-gray-500">Participants</div>
<div className="font-medium">{exp.totalParticipants.toLocaleString()}</div>
</div>
<div>
<div className="text-gray-500">Events</div>
<div className="font-medium">{exp.totalEvents.toLocaleString()}</div>
</div>
<div>
<div className="text-gray-500">Primary Metric</div>
<div className="font-medium">{exp.primaryMetric.name}</div>
</div>
<div>
<div className="text-gray-500">Strategy</div>
<div className="font-medium capitalize">{exp.allocationStrategy}</div>
</div>
</div>
</CardContent>
</Card>
))}
</div>
)}
{selectedExperiment && variants.length > 0 && (
<Card className="mt-6">
<CardHeader>
<CardTitle>Variant Performance</CardTitle>
</CardHeader>
<CardContent>
<div className="space-y-4">
{variants.map(variant => (
<div
key={variant.id}
className={`p-4 rounded-lg border ${
variant.isControl ? 'bg-gray-50 dark:bg-gray-900' : ''
}`}
>
<div className="flex items-center justify-between mb-3">
<div className="flex items-center gap-2">
<span className="font-medium">{variant.name}</span>
{variant.isControl && <Badge variant="secondary">Control</Badge>}
</div>
<div className="flex items-center gap-4 text-sm">
<div className="flex items-center gap-1">
<Users className="w-4 h-4 text-gray-500" />
<span>{variant.stats.participants.toLocaleString()}</span>
</div>
<div className="flex items-center gap-1">
<Target className="w-4 h-4 text-gray-500" />
<span>{variant.stats.events.toLocaleString()}</span>
</div>
</div>
</div>
{variant.bayesianResults && !variant.isControl && (
<div className="grid grid-cols-2 gap-4 mt-3 pt-3 border-t">
<div>
<div className="text-sm text-gray-500">Probability vs Control</div>
<div
className={`text-lg font-semibold ${
variant.bayesianResults.probabilityBeatsControl > 0.95
? 'text-green-600'
: variant.bayesianResults.probabilityBeatsControl > 0.8
? 'text-yellow-600'
: 'text-gray-600'
}`}
>
{(variant.bayesianResults.probabilityBeatsControl * 100).toFixed(1)}%
</div>
</div>
<div>
<div className="text-sm text-gray-500">Expected Lift</div>
<div
className={`text-lg font-semibold ${
variant.bayesianResults.expectedLiftPercent > 0
? 'text-green-600'
: 'text-red-600'
}`}
>
{variant.bayesianResults.expectedLiftPercent > 0 ? '+' : ''}
{variant.bayesianResults.expectedLiftPercent.toFixed(1)}%
</div>
</div>
</div>
)}
{variant.isControl && (
<div className="mt-3 pt-3 border-t text-sm text-gray-500">
Baseline: {variant.stats.primaryMetricValue.toFixed(2)}{' '}
{selectedExperiment.primaryMetric.name}
</div>
)}
</div>
))}
</div>
</CardContent>
</Card>
)}
</TabsContent>
<TabsContent value="results">
<Card>
<CardHeader>
<CardTitle>Experiment Results</CardTitle>
</CardHeader>
<CardContent>
<EmptyState
icon={<BarChart3 className="w-8 h-8 text-gray-500" />}
title="Select an experiment"
description="Click on an experiment from the Experiments tab to view detailed results."
/>
</CardContent>
</Card>
</TabsContent>
<TabsContent value="suggestions">
<Card>
<CardHeader>
<CardTitle>AI-Generated Experiment Suggestions</CardTitle>
</CardHeader>
<CardContent>
<div className="space-y-4">
<div className="p-4 border rounded-lg">
<div className="flex items-start gap-3">
<TrendingUp className="w-5 h-5 text-blue-500 mt-0.5" />
<div>
<h4 className="font-medium">Optimize Onboarding Flow</h4>
<p className="text-sm text-gray-500 mt-1">
Based on 34% drop-off at step 2, test a simplified onboarding with reduced
form fields.
</p>
<div className="flex items-center gap-2 mt-3">
<Badge variant="secondary">Predicted Impact: +15%</Badge>
<Badge variant="outline">Confidence: High</Badge>
</div>
</div>
</div>
</div>
<div className="p-4 border rounded-lg">
<div className="flex items-start gap-3">
<AlertTriangle className="w-5 h-5 text-yellow-500 mt-0.5" />
<div>
<h4 className="font-medium">Test Error Recovery Flow</h4>
<p className="text-sm text-gray-500 mt-1">
12% of users encountering sync errors churn. Test an improved error message
with direct support contact.
</p>
<div className="flex items-center gap-2 mt-3">
<Badge variant="secondary">Predicted Impact: +8%</Badge>
<Badge variant="outline">Confidence: Medium</Badge>
</div>
</div>
</div>
</div>
<div className="p-4 border rounded-lg">
<div className="flex items-start gap-3">
<CheckCircle2 className="w-5 h-5 text-green-500 mt-0.5" />
<div>
<h4 className="font-medium">Feature Flag Rollout</h4>
<p className="text-sm text-gray-500 mt-1">
New telemetry system shows 99.9% reliability. Ready for 50% rollout with
automated monitoring.
</p>
<div className="flex items-center gap-2 mt-3">
<Badge variant="secondary">Risk: Low</Badge>
<Badge variant="outline">Auto-Rollback: Enabled</Badge>
</div>
</div>
</div>
</div>
</div>
</CardContent>
</Card>
</TabsContent>
</Tabs>
</div>
);
}

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import type { ReactNode } from 'react';
import { Button } from './ui/button';
interface EmptyStateProps {
icon?: ReactNode;
title: string;
description: string;
action?: {
label: string;
onClick: () => void;
};
}
export function EmptyState({ icon, title, description, action }: EmptyStateProps): ReactNode {
return (
<div className="flex flex-col items-center justify-center min-h-[300px] p-8 text-center">
{icon && (
<div className="w-16 h-16 rounded-full bg-muted flex items-center justify-center mb-4">
{icon}
</div>
)}
<h3 className="text-lg font-medium mb-2">{title}</h3>
<p className="text-muted-foreground max-w-sm mb-6">{description}</p>
{action && <Button onClick={action.onClick}>{action.label}</Button>}
</div>
);
}

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interface LoadingSpinnerProps {
size?: 'sm' | 'md' | 'lg';
className?: string;
}
export function LoadingSpinner({ size = 'md', className = '' }: LoadingSpinnerProps) {
const sizeClasses = {
sm: 'w-4 h-4',
md: 'w-8 h-8',
lg: 'w-12 h-12',
};
return (
<div className={`${sizeClasses[size]} ${className}`}>
<svg
className="animate-spin text-primary"
xmlns="http://www.w3.org/2000/svg"
fill="none"
viewBox="0 0 24 24"
>
<circle
className="opacity-25"
cx="12"
cy="12"
r="10"
stroke="currentColor"
strokeWidth="4"
/>
<path
className="opacity-75"
fill="currentColor"
d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
/>
</svg>
</div>
);
}

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import type { ReactNode } from 'react';
interface PageHeaderProps {
title: string;
breadcrumbs?: Array<{ label: string; href?: string }>;
actions?: ReactNode;
}
export function PageHeader({ title, breadcrumbs, actions }: PageHeaderProps): ReactNode {
return (
<div className="flex items-center justify-between mb-6">
<div>
{breadcrumbs && breadcrumbs.length > 0 && (
<nav className="flex items-center space-x-2 text-sm text-muted-foreground mb-2">
{breadcrumbs.map((crumb, index) => (
<span key={index} className="flex items-center">
{index > 0 && <span className="mx-2">/</span>}
{crumb.href ? (
<a href={crumb.href} className="hover:text-foreground">
{crumb.label}
</a>
) : (
<span>{crumb.label}</span>
)}
</span>
))}
</nav>
)}
<h1 className="text-2xl font-bold">{title}</h1>
</div>
{actions && <div className="flex items-center space-x-3">{actions}</div>}
</div>
);
}

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@ -31,6 +31,7 @@ import {
MessageSquare,
Megaphone,
ClipboardList,
Beaker,
} from 'lucide-react';
import { cn } from '@/lib/utils';
import { useAuth } from '@/lib/auth-context';
@ -59,6 +60,7 @@ const navItems = [
{ href: '/ops', label: 'Mission Control', icon: Activity },
{ href: '/ops/client-logs', label: 'Client Logs', icon: FileText },
{ href: '/ops/telemetry-policies', label: 'Telemetry Policies', icon: Shield },
{ href: '/ops/ab-testing', label: 'A/B Testing', icon: Beaker },
{ href: '/feedback', label: 'User Feedback', icon: MessageSquare },
{ href: '/ops/secrets', label: 'Secrets Manager', icon: KeyRound },
{ href: '/settings', label: 'Settings', icon: Settings },

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# ByteLyst Common Platform — Complete Inventory
> **Purpose:** Comprehensive reference for all reusable components, services, SDKs, and tools available to ByteLyst product teams.
> **Repo:** `learning_ai_common_plat`
> **Last Updated:** 2026-03-03
---
## 1. Quick Stats
| Category | Count | Notes |
| --------------------- | ------- | ----------------------------------------------------- |
| **Shared Packages** | 32 | `@bytelyst/*` — consumed via `file:` or `workspace:*` |
| **Platform Services** | 2 | Running services (consolidated from 5) |
| **Dashboards** | 2 | Product-agnostic web consoles |
| **Platform SDKs** | 3 | Swift, Kotlin, React Native |
| **Cosmos Containers** | ~50+ | Shared + product-specific |
| **Total Tests** | ~1,700+ | Service + package + SDK tests |
---
## 2. Shared Packages (`@bytelyst/*`)
### 2.1 Core Infrastructure
| Package | Purpose | Exports | Consumers |
| ------------------- | --------------------------- | ---------------------------------------------------------------------------------------------------------------------------------- | ------------------------- |
| `@bytelyst/errors` | Typed HTTP errors (400-429) | `ServiceError`, `BadRequestError`, `UnauthorizedError`, `ForbiddenError`, `NotFoundError`, `ConflictError`, `TooManyRequestsError` | All services |
| `@bytelyst/cosmos` | Azure Cosmos DB client | `getCosmosClient`, `getDatabase`, `getContainer`, `registerContainers`, `getRegisteredContainer`, `initializeAllContainers` | All services + dashboards |
| `@bytelyst/config` | Env loading + Key Vault | `loadConfig`, `loadProductIdentity`, `resolveKeyVaultSecrets`, `loadProductManifest`, `ProductManifestSchema` | All services |
| `@bytelyst/logger` | Structured logging | Pino-based wrapper | All services |
| `@bytelyst/testing` | Shared test utilities | Fastify inject helpers, mocks | All test suites |
### 2.2 Auth & Identity
| Package | Purpose | Exports | Consumers |
| ----------------------- | -------------------------- | -------------------------------------------------------------------------------- | ------------------------- |
| `@bytelyst/auth` | JWT + password hashing | `createJwtUtils`, `hashPassword`, `verifyPassword`, `extractAuth`, `requireRole` | All services + dashboards |
| `@bytelyst/auth-client` | Client-side auth utilities | Token refresh, storage abstractions | Web + React Native |
| `@bytelyst/react-auth` | React auth context factory | `createAuthContext()` — typed provider + hook | Next.js dashboards |
### 2.3 API & Clients
| Package | Purpose | Exports | Consumers |
| ------------------------------- | ------------------------- | --------------------------------------- | ------------- |
| `@bytelyst/api-client` | Typed fetch wrapper | `createApiClient()` with auth injection | Web + RN |
| `@bytelyst/platform-client` | Platform service client | Typed fetch with 401 retry | Web + RN |
| `@bytelyst/broadcast-client` | Broadcast/survey client | Poll and broadcast APIs | iOS + Android |
| `@bytelyst/survey-client` | Survey response client | Submit survey responses | iOS + Android |
| `@bytelyst/telemetry-client` | Telemetry ingestion | `createTelemetryClient()` with batching | All platforms |
| `@bytelyst/feature-flag-client` | Feature flag polling | `createFeatureFlagClient()` | All platforms |
| `@bytelyst/kill-switch-client` | Kill switch check | `createKillSwitchClient()` (fail-open) | All platforms |
| `@bytelyst/offline-queue` | Persistent retry queue | Configurable storage adapter | Web + RN |
| `@bytelyst/diagnostics-client` | Remote diagnostics client | Error reporting, log upload | All platforms |
| `@bytelyst/feedback-client` | In-app feedback | Submit feedback + attachments | iOS + Android |
### 2.4 Storage & Data
| Package | Purpose | Exports | Consumers |
| ----------------------- | ------------------ | ----------------------------------- | ---------------- |
| `@bytelyst/blob` | Azure Blob Storage | SAS token generation, container ops | platform-service |
| `@bytelyst/blob-client` | Blob upload client | Upload via SAS tokens | Web + RN |
| `@bytelyst/datastore` | Generic data store | Repository patterns | Services |
| `@bytelyst/storage` | Storage utilities | File operations, compression | Services |
### 2.5 Backend Framework
| Package | Purpose | Exports | Consumers |
| ------------------------ | ------------------------- | -------------------------------------------------- | -------------------- |
| `@bytelyst/fastify-core` | Service bootstrap | `createServiceApp()`, `startService()`, Swagger UI | All Fastify services |
| `@bytelyst/events` | In-memory event bus | `EventBus`, typed event schemas, error isolation | platform-service |
| `@bytelyst/monitoring` | Health checks + telemetry | Health utilities, Loki/Grafana helpers | All services |
| `@bytelyst/push` | Push notification service | APNS, FCM integration | platform-service |
### 2.6 AI/ML & Extraction
| Package | Purpose | Exports | Consumers |
| ---------------------- | ---------------------- | ---------------------------------------- | ---------------- |
| `@bytelyst/extraction` | Text extraction client | `createExtractionClient()`, shared types | Web + dashboards |
| `@bytelyst/llm` | LLM utilities | Prompt templates, token counting | Services |
| `@bytelyst/speech` | Speech SDK wrappers | Azure Speech integration | Desktop + Mobile |
### 2.7 Design System
| Package | Purpose | Exports | Consumers |
| ------------------------- | --------------------- | --------------------------------- | ------------- |
| `@bytelyst/design-tokens` | Cross-platform tokens | CSS, TS, Kotlin, Swift generation | All platforms |
### 2.8 React Native
| Package | Purpose | Exports | Consumers |
| ------------------------------------- | --------------- | ---------------------------------------- | ----------------------- |
| `@bytelyst/react-native-platform-sdk` | RN platform SDK | Unified client for all platform features | NomGap + future RN apps |
---
## 3. Platform Services
### 3.1 platform-service (Port 4003)
Consolidated from billing-service, growth-service, tracker-service.
**Status:** Active | **Tests:** ~1,050+ | **Modules:** 45
| Module | Purpose | Cosmos Container | Public API |
| ------------------------ | ----------------------------------------------------- | ------------------------------------------------------------------------------- | ------------------------- |
| **auth** | JWT issue/refresh, password reset, email verification | `users`, `password_reset_tokens`, `email_verifications` | `/auth/*` |
| **audit** | Audit logging | `audit_log` | Admin only |
| **blob** | Azure Blob Storage | - | `/api/blob/*` |
| **broadcasts** | Feature announcements | `broadcasts` | Admin: CRUD, Public: read |
| **comments** | Item comments | `comments` | `/comments/*` |
| **delivery** | Email/push delivery | `delivery_log`, templates | Internal |
| **diagnostics** | Remote diagnostics, error clustering | `diagnostic_sessions`, `error_clusters` | `/diagnostics/*` |
| **ai-diagnostics** | AI-powered diagnostic assistant | `auto_triggers`, `diagnostic_sessions` | `/ai-diagnostics/*` |
| **flags** | Feature flags | `feature_flags` | `/flags/poll` (client) |
| **invitations** | Team invitations | `invitations` | `/invitations/*` |
| **ip-rules** | IP allow/deny | `ip_rules` | Admin only |
| **items** | Tracker items | `items` | `/items/*` |
| **jobs** | Scheduled job runner | `job_definitions`, `job_runs` | Admin only |
| **licenses** | License key management | `licenses` | `/licenses/*` |
| **maintenance** | Maintenance mode | `maintenance_windows` | Admin only |
| **marketplace** | Product marketplace (JarvisJr) | `marketplace_listings`, `purchases` | `/marketplace/*` |
| **notifications** | Push/email triggers | `notification_queue` | Internal |
| **plans** | Subscription plans | `plans` | `/plans/*` |
| **products** | Product registry | `products` | Admin only |
| **promos** | Promo codes | `promos` | `/promos/*` |
| **public** | Public endpoints (no auth) | - | `/public/*` |
| **referrals** | Referral system | `referrals` | `/referrals/*` |
| **sessions** | Device session management | `sessions` | `/sessions/*` |
| **settings** | Platform settings | `settings` | Admin only |
| **status** | Public status page | `incidents` | `/status/*` (public read) |
| **stripe** | Stripe webhooks | - | `/stripe/webhook` |
| **subscriptions** | Subscriptions | `subscriptions` | `/subscriptions/*` |
| **surveys** | User surveys | `surveys`, `survey_responses` | `/surveys/*` |
| **telemetry** | Client telemetry ingestion | `telemetry_events`, `telemetry_error_clusters`, `telemetry_collection_policies` | `/telemetry/*` |
| **themes** | Platform themes | `themes` | `/themes/*` |
| **tokens** | API tokens | `api_tokens` | `/tokens/*` |
| **usage** | Usage tracking | `usage_daily`, `usage_hourly` | `/usage/*` |
| **votes** | Item voting | `votes` | `/votes/*` |
| **waitlist** | Pre-launch signup | `waitlist` | `/waitlist/*` |
| **webhooks** | Webhook subscriptions | `webhook_subscriptions`, `webhook_deliveries` | `/webhooks/*` |
| **ab-testing** | A/B experiments | `experiments`, `experiment_assignments` | `/experiments/*` |
| **predictive-analytics** | Churn/health scoring | `predictive_scores`, `score_history` | `/predictive/*` |
| **analytics** | Analytics rollups | `analytics_events`, `analytics_aggregates` | `/analytics/*` |
| **exports** | GDPR data export | `export_jobs` | `/exports/*` |
| **feedback** | In-app feedback | `feedback` | `/feedback/*` |
| **impersonation** | User impersonation | `impersonation_sessions` | `/impersonation/*` |
| **changelog** | Product changelogs | `changelogs` | `/changelogs/*` |
| **ratelimit** | Rate limiting | `rate_limit_windows` | `/ratelimit/*` |
### 3.2 extraction-service (Port 4005)
**Status:** Active | **Tests:** 47 | **Modules:** 2
| Module | Purpose | Type |
| ----------- | ----------------------------- | -------------------------- |
| **extract** | Text extraction (LangExtract) | Python + TypeScript hybrid |
| **tasks** | Extraction task management | TypeScript |
---
## 4. Dashboards (Product-Agnostic)
### 4.1 admin-web (Port 3001)
**Stack:** Next.js 16 + React 19 + TailwindCSS v4 + shadcn/ui
| Feature | Path | Description |
| ------------------ | ------------------ | -------------------------------- |
| Mission Control | `/ops` | Service health dashboard |
| Secrets Manager | `/ops/secrets` | Azure Key Vault CRUD |
| Client Logs | `/ops/client-logs` | Telemetry query + error clusters |
| User Management | `/users` | CRUD, roles, sessions |
| License Management | `/licenses` | Key generation, tracking |
| Usage Analytics | `/usage` | Daily/hourly metrics |
| API Tokens | `/tokens` | Admin token management |
| Broadcasts | `/broadcasts` | Feature announcements |
| Themes | `/themes` | Platform theme editor |
| Feature Flags | `/flags` | Flag management + rollout |
**Key Files:**
- `src/lib/cosmos.ts` — Cosmos client
- `src/lib/auth-server.ts` — JWT + bcrypt
- `src/lib/product-config.ts` — Product identity
- `src/lib/platform-client.ts` — platform-service client
- `src/lib/telemetry-client.ts` — telemetry query client
### 4.2 tracker-web (Port 3003)
**Stack:** Next.js 16 + React 19 + TailwindCSS v4
| Feature | Path | Description |
| -------------- | ------------ | ------------------------- |
| Public Roadmap | `/roadmap` | Feature requests + voting |
| Item Detail | `/items/:id` | Discussion + voting |
| Submit | `/submit` | New feature request |
---
## 5. Platform SDKs
### 5.1 Swift Platform SDK (`packages/swift-platform-sdk/`)
**Components:** 20 | **Language:** Swift 5.9+ | **Platforms:** iOS 17+, watchOS 10+, macOS 14+
| Component | Purpose |
| --------------------- | ---------------------------------------------------------------- |
| `BLPlatformConfig` | Product configuration (productId, baseURL, bundleId, appGroupId) |
| `BLPlatformClient` | Generic HTTP client (auth injection, x-request-id, timeout) |
| `BLKeychain` | Keychain CRUD |
| `BLAuthClient` | Full auth (login, register, refresh, password ops) |
| `BLTelemetryClient` | Telemetry queue + batch flush |
| `BLFeatureFlagClient` | Feature flag polling |
| `BLSyncEngine` | Generic offline-first sync |
| `BLBlobClient` | Blob upload via SAS tokens |
| `BLKillSwitchClient` | Kill switch check (fail-open) |
| `BLLicenseClient` | License activation + status |
| `BLBiometricAuth` | Face ID / Touch ID |
| `BLCrashReporter` | MetricKit crash reporting |
| `BLAuditLogger` | Local rotating JSON audit log |
| `BLFeedbackClient` | In-app feedback submission |
| `BLSurveyClient` | Survey polling + response |
| `BLDeepLinkRouter` | Deep link handling |
| `BLInAppMessageUI` | In-app message display |
| `BLSurveyUI` | Survey UI components |
| `ByteLystPlatformSDK` | Umbrella export |
**Migrated Apps:** LysnrAI, ChronoMind, MindLyst, PeakPulse, JarvisJr
### 5.2 Kotlin Platform SDK (`packages/kotlin-platform-sdk/`)
**Components:** 18 | **Language:** Kotlin 2.0+ | **Platforms:** Android (minSdk 26)
| Component | Purpose |
| --------------------- | ---------------------------------------- |
| `BLPlatformConfig` | Product configuration |
| `BLPlatformClient` | OkHttp-based HTTP client |
| `BLSecureStore` | EncryptedSharedPreferences wrapper |
| `BLAuthClient` | Full auth + token management + StateFlow |
| `BLTelemetryClient` | Batched events + SharedPreferences queue |
| `BLFeatureFlagClient` | Feature flag polling |
| `BLKillSwitchClient` | Kill switch (fail-open) |
| `BLBlobClient` | SAS upload |
| `BLLicenseClient` | License activation |
| `BLAuditLogger` | Rotating JSONL audit log |
| `BLBiometricAuth` | AndroidX BiometricPrompt |
| `BLCrashReporter` | UncaughtExceptionHandler |
| `BLSyncEngine` | Pull-merge-push sync |
| `BLFeedbackClient` | Feedback submission |
| `BLSurveyClient` | Survey polling |
| `BLBroadcastClient` | Broadcast/announcement |
| `DeepLinkRouter` | Deep link handling |
**Migrated Apps:** ChronoMind, MindLyst, LysnrAI (all via Gradle `includeBuild`)
**Tests:** 35 JUnit5 + MockWebServer
### 5.3 React Native Platform SDK (`packages/react-native-platform-sdk/`)
**Components:** Unified client | **Platforms:** iOS, Android (React Native / Expo)
| Component | Purpose |
| --------------- | ------------------------------------- |
| Platform Client | Unified API for all platform features |
| Auth | Token management |
| Telemetry | Event batching |
| Feature Flags | Polling client |
| Kill Switch | Fail-open check |
| Offline Queue | Persistent retry |
**Migrated Apps:** NomGap
---
## 6. AI.dev Skills (`.windsurf/workflows/`)
Workflow scripts for AI agents and developers:
| Workflow | Purpose |
| -------------------------- | -------------------------------------- |
| `architecture-patterns.md` | Common architectural patterns |
| `backup-main-branch.md` | Smart backup with duplicate detection |
| `debug-service.md` | Debug failing services |
| `desktop-release.md` | Build and release desktop apps |
| `docker-compose.md` | Run all services via Docker |
| `dual-network-setup.md` | Corporate proxy + home network |
| `generate-store-assets.md` | App store artwork (icons, screenshots) |
| `index.md` | Workflow index |
| `ios-release.md` | Build and release iOS apps |
| `local-development.md` | Local dev setup |
| `mobile-code-quality.md` | iOS/Android quality checks |
| `production-readiness.md` | Pre-release checklist |
| `scan-repo-context.md` | Update WINDSURF_CONTEXT.md |
| `security-auditing.md` | Security audit procedures |
| `test-desktop-app.md` | Desktop app testing |
| `test-ios-app.md` | iOS testing in Simulator |
| `test-strategies.md` | Testing patterns |
| `update-agent-docs.md` | Regenerate AGENTS.md, CLAUDE.md, etc. |
---
## 7. Scripts (`scripts/`)
| Script | Purpose |
| ----------------------------- | ------------------------------------- |
| `backup-main.sh` | Backup main branches across repos |
| `cosmos-telemetry-indexes.sh` | Create Cosmos indexes for telemetry |
| `docker-prep.sh` | Prepare for Docker builds |
| `export-lysnr-kv.sh` | Export LysnrAI Key Vault secrets |
| `prep-consumer.sh` | Prepare consumer builds |
| `railway-deploy.sh` | Deploy to Railway |
| `secret-scan-repo.sh` | Scan repo for secrets |
| `secret-scan-staged.sh` | Scan staged files |
| `seed-keyvault.sh` | Seed Key Vault with required secrets |
| `seed-lysnr-kv.sh` | Seed LysnrAI Key Vault |
| `setup-husky.sh` | Setup Git hooks |
| `switch-network.sh` | Switch between corporate/home network |
| `sync-workflows.md` | Sync workflows across repos |
---
## 8. Product Configurations (`products/`)
Each product has a `product.json` manifest:
| Product | File | Backend Port |
| ---------- | ------------------------- | ------------ |
| LysnrAI | `lysnrai/product.json` | 4015 |
| MindLyst | `mindlyst/product.json` | 4014 |
| ChronoMind | `chronomind/product.json` | 4011 |
| JarvisJr | `jarvisjr/product.json` | 4012 |
| NomGap | `nomgap/product.json` | 4013 |
| PeakPulse | `peakpulse/product.json` | 4010 |
---
## 9. Completed Roadmaps (`docs/roadmaps/completed/`)
| Roadmap | Description |
| -------------------------------------------- | ------------------------------------ |
| `cloud_AGNOSTIC_REFACTOR_ROADMAP.md` | Cloud-agnostic infrastructure |
| `cloud_REFERRALS_PARTITION_KEY_MIGRATION.md` | Cosmos partition key migration |
| `diagnostics_REMOTE_DIAGNOSTICS_ROADMAP.md` | Remote diagnostics system |
| `extraction_SERVICE_ROADMAP.md` | Text extraction service |
| `mobile_ANDROID_PLATFORM_SDK.md` | Android SDK design |
| `mobile_IOS_PLATFORM_SDK.md` | iOS SDK design |
| `mobile_REACT_NATIVE_PLATFORM_SDK.md` | React Native SDK design |
| `platform_BACKEND_MIGRATION.md` | Backend consolidation |
| `platform_COMMON_EXTRACTION_ROADMAP.md` | Shared extraction |
| `platform_COMPONENTS_ROADMAP.md` | Platform components (23 of 25 built) |
| `platform_SERVICE_CONSOLIDATION_ROADMAP.md` | Service merger (4001→4003) |
| `product_MARKETPLACE_MODULE_DESIGN.md` | JarvisJr marketplace |
| `product_PRE_LAUNCH_SIGNUP_SYSTEM.md` | Waitlist system |
| `telemetry_IMPLEMENTATION_ROADMAP.md` | Client telemetry |
---
## 10. Active/Planned Roadmaps (`docs/roadmaps/`)
| Roadmap | Status |
| -------------------------------------------- | ----------- |
| `AI_DIAGNOSTIC_ASSISTANT_ROADMAP.md` | In Progress |
| `INTELLIGENT_AB_TESTING_ROADMAP.md` | Active |
| `PREDICTIVE_CHURN_HEALTH_SCORING_ROADMAP.md` | Active |
| `WORKSPACE_REVIEW_2026_03_03.md` | Active |
---
## 11. How to Consume
### 11.1 TypeScript Packages (Services/Dashboards)
```json
// package.json
{
"dependencies": {
"@bytelyst/cosmos": "file:../learning_ai_common_plat/packages/cosmos",
"@bytelyst/auth": "file:../learning_ai_common_plat/packages/auth",
"@bytelyst/config": "file:../learning_ai_common_plat/packages/config"
}
}
```
```typescript
// In code
import { getCosmosClient, registerContainers } from '@bytelyst/cosmos';
import { createJwtUtils } from '@bytelyst/auth';
import { loadProductIdentity } from '@bytelyst/config';
```
### 11.2 Swift SDK (iOS)
```swift
// Package.swift
dependencies: [
.package(path: "../learning_ai_common_plat/packages/swift-platform-sdk")
]
// In code
import ByteLystPlatformSDK
let config = BLPlatformConfig(productId: "myproduct", baseURL: "...")
```
### 11.3 Kotlin SDK (Android)
```kotlin
// settings.gradle.kts
includeBuild("../learning_ai_common_plat/packages/kotlin-platform-sdk")
// build.gradle.kts
implementation("com.bytelyst:platform-sdk:1.0.0")
// In code
import com.bytelyst.platform.BLPlatformConfig
val config = BLPlatformConfig(productId = "myproduct", baseURL = "...")
```
### 11.4 React Native SDK
```json
// package.json
{
"dependencies": {
"@bytelyst/react-native-platform-sdk": "file:../learning_ai_common_plat/packages/react-native-platform-sdk"
}
}
```
---
## 12. Build Verification Commands
```bash
# Full platform build
pnpm build
# Full test suite
pnpm test
# Type check
pnpm typecheck
# Individual service
pnpm --filter @lysnrai/platform-service test
# Swift SDK
cd packages/swift-platform-sdk && swift build
# Kotlin SDK
cd packages/kotlin-platform-sdk && ./gradlew build
# Dashboards
cd dashboards/admin-web && npm run build
cd dashboards/tracker-web && npm run build
```
---
## 13. Architecture Diagram
```
┌─────────────────────────────────────────────────────────────┐
│ PRODUCT APPS │
│ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐│
│ │LysnrAI │ │MindLyst │ │ChronoM. │ │JarvisJr │ │NomGap ││
│ │PeakPulse│ │ │ │ │ │ │ │ ││
│ └────┬────┘ └────┬────┘ └────┬────┘ └────┬────┘ └────┬────┘│
│ │ │ │ │ │ │
│ └───────────┴───────────┴───────────┴───────────┘ │
│ │ │
│ ┌──────────┴──────────┐ │
│ │ Platform SDKs │ │
│ │ (Swift/Kotlin/RN) │ │
│ └──────────┬──────────┘ │
└─────────────────────────┼───────────────────────────────────┘
┌─────────────────────────┼───────────────────────────────────┐
│ ┌──────────┴──────────┐ │
│ │ Shared Packages │ │
│ │ (@bytelyst/*) │ │
│ └──────────┬──────────┘ │
│ │ │
│ ┌──────────────────────┼────────────────────────────────┐ │
│ │ platform-service (4003) │ │
│ │ auth │ billing │ flags │ telemetry │ blob │ etc. │ │
│ └──────────────────────┬────────────────────────────────┘ │
│ │ │
│ ┌──────────────────────┼────────────────────────────────┐ │
│ │ extraction-service (4005) │ │
│ │ Text extraction (LangExtract) │ │
│ └──────────────────────┬────────────────────────────────┘ │
│ │ │
│ ┌──────────┴──────────┐ │
│ │ Azure Cosmos DB │ │
│ │ Azure Blob Storage │ │
│ │ Azure Key Vault │ │
│ └───────────────────────┘ │
└─────────────────────────────────────────────────────────────┘
```
---
## 14. Contact & Contribution
- **Primary Repo:** `learning_ai_common_plat`
- **Package Scope:** `@bytelyst/*`
- **Service Scope:** `@lysnrai/*`
- **New Components:** Follow existing patterns in `types.ts``repository.ts``routes.ts`
- **Tests Required:** All new code must have tests (Vitest for TS, XCTest for Swift, JUnit5 for Kotlin)

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{
"name": "@bytelyst/dashboard-components",
"version": "0.1.0",
"description": "Shared React components for ByteLyst dashboards",
"type": "module",
"main": "./dist/index.js",
"exports": {
".": {
"import": "./dist/index.js",
"types": "./dist/index.d.ts"
}
},
"scripts": {
"build": "tsc",
"typecheck": "tsc --noEmit"
},
"peerDependencies": {
"react": "^19.0.0",
"react-dom": "^19.0.0"
},
"devDependencies": {
"@types/react": "^19.0.0",
"@types/react-dom": "^19.0.0",
"react": "^19.0.0",
"react-dom": "^19.0.0",
"typescript": "^5.7.3"
}
}

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import type { ReactNode } from 'react';
interface EmptyStateProps {
icon?: ReactNode;
title: string;
description: string;
action?: {
label: string;
onClick: () => void;
};
}
export function EmptyState({ icon, title, description, action }: EmptyStateProps): ReactNode {
return (
<div className="flex flex-col items-center justify-center min-h-[300px] p-8 text-center">
{icon && (
<div className="w-16 h-16 rounded-full bg-gray-100 dark:bg-gray-800 flex items-center justify-center mb-4">
{icon}
</div>
)}
<h3 className="text-lg font-medium text-gray-900 dark:text-white mb-2">{title}</h3>
<p className="text-gray-500 dark:text-gray-400 max-w-sm mb-6">{description}</p>
{action && (
<button
onClick={action.onClick}
className="px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white rounded-lg transition-colors"
>
{action.label}
</button>
)}
</div>
);
}

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import type { ReactNode } from 'react';
interface ErrorPageProps {
title?: string;
message?: string;
onRetry?: () => void;
}
export function ErrorPage({
title = 'Something went wrong',
message = 'An unexpected error occurred. Please try again.',
onRetry,
}: ErrorPageProps): ReactNode {
return (
<div className="flex flex-col items-center justify-center min-h-[400px] p-8">
<div className="w-16 h-16 rounded-full bg-red-100 dark:bg-red-900/20 flex items-center justify-center mb-4">
<svg className="w-8 h-8 text-red-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"
/>
</svg>
</div>
<h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-2">{title}</h2>
<p className="text-gray-600 dark:text-gray-400 text-center max-w-md mb-6">{message}</p>
{onRetry && (
<button
onClick={onRetry}
className="px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white rounded-lg transition-colors"
>
Try Again
</button>
)}
</div>
);
}

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import type { ReactNode } from 'react';
interface LoadingSkeletonProps {
rows?: number;
className?: string;
}
export function LoadingSkeleton({ rows = 3, className = '' }: LoadingSkeletonProps): ReactNode {
return (
<div className={`space-y-3 ${className}`}>
{Array.from({ length: rows }).map((_, i) => (
<div key={i} className="h-12 bg-gray-200 dark:bg-gray-700 rounded animate-pulse" />
))}
</div>
);
}

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import type { ReactNode } from 'react';
interface LoadingSpinnerProps {
size?: 'sm' | 'md' | 'lg';
className?: string;
}
export function LoadingSpinner({ size = 'md', className = '' }: LoadingSpinnerProps): ReactNode {
const sizeClasses = {
sm: 'w-4 h-4',
md: 'w-8 h-8',
lg: 'w-12 h-12',
};
return (
<div className={`${sizeClasses[size]} ${className}`}>
<svg
className="animate-spin text-blue-600"
xmlns="http://www.w3.org/2000/svg"
fill="none"
viewBox="0 0 24 24"
>
<circle
className="opacity-25"
cx="12"
cy="12"
r="10"
stroke="currentColor"
strokeWidth="4"
/>
<path
className="opacity-75"
fill="currentColor"
d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
/>
</svg>
</div>
);
}

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import type { ReactNode } from 'react';
interface NotFoundPageProps {
title?: string;
message?: string;
onBack?: () => void;
}
export function NotFoundPage({
title = 'Page Not Found',
message = 'The page you are looking for does not exist.',
onBack,
}: NotFoundPageProps): ReactNode {
return (
<div className="flex flex-col items-center justify-center min-h-[400px] p-8">
<div className="w-16 h-16 rounded-full bg-gray-100 dark:bg-gray-800 flex items-center justify-center mb-4">
<svg
className="w-8 h-8 text-gray-500"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d="M9.172 16.172a4 4 0 015.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"
/>
</svg>
</div>
<h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-2">{title}</h2>
<p className="text-gray-600 dark:text-gray-400 text-center max-w-md mb-6">{message}</p>
{onBack && (
<button
onClick={onBack}
className="px-4 py-2 bg-gray-600 hover:bg-gray-700 text-white rounded-lg transition-colors"
>
Go Back
</button>
)}
</div>
);
}

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import type { ReactNode } from 'react';
interface PageHeaderProps {
title: string;
breadcrumbs?: Array<{ label: string; href?: string }>;
actions?: ReactNode;
}
export function PageHeader({ title, breadcrumbs, actions }: PageHeaderProps): ReactNode {
return (
<div className="flex items-center justify-between mb-6">
<div>
{breadcrumbs && breadcrumbs.length > 0 && (
<nav className="flex items-center space-x-2 text-sm text-gray-500 dark:text-gray-400 mb-2">
{breadcrumbs.map((crumb, index) => (
<span key={index} className="flex items-center">
{index > 0 && <span className="mx-2">/</span>}
{crumb.href ? (
<a href={crumb.href} className="hover:text-gray-700 dark:hover:text-gray-300">
{crumb.label}
</a>
) : (
<span>{crumb.label}</span>
)}
</span>
))}
</nav>
)}
<h1 className="text-2xl font-bold text-gray-900 dark:text-white">{title}</h1>
</div>
{actions && <div className="flex items-center space-x-3">{actions}</div>}
</div>
);
}

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/**
* @bytelyst/dashboard-components
*
* Shared React components for ByteLyst dashboards
*/
export { ErrorPage } from './ErrorPage.js';
export { NotFoundPage } from './NotFoundPage.js';
export { LoadingSpinner } from './LoadingSpinner.js';
export { LoadingSkeleton } from './LoadingSkeleton.js';
export { EmptyState } from './EmptyState.js';
export { PageHeader } from './PageHeader.js';

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{
"extends": "../../tsconfig.base.json",
"compilerOptions": {
"outDir": "./dist",
"rootDir": "./src",
"jsx": "react-jsx",
"declaration": true,
"declarationMap": true,
"lib": ["ES2022", "DOM", "DOM.Iterable"]
},
"include": ["src/**/*"]
}

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{
"name": "@bytelyst/sync",
"version": "0.1.0",
"description": "Offline-first sync engine with configurable storage adapters and conflict resolution",
"type": "module",
"main": "./dist/index.js",
"exports": {
".": {
"import": "./dist/index.js",
"types": "./dist/index.d.ts"
}
},
"scripts": {
"build": "tsc",
"test": "vitest run",
"test:watch": "vitest",
"typecheck": "tsc --noEmit"
},
"dependencies": {
"@bytelyst/api-client": "workspace:*",
"@bytelyst/telemetry-client": "workspace:*"
},
"devDependencies": {
"@types/node": "^22.12.0",
"typescript": "^5.7.3",
"vitest": "^3.0.5"
},
"peerDependencies": {
"@bytelyst/api-client": "workspace:*"
}
}

382
packages/sync/src/engine.ts Normal file
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/**
* Sync Engine Core implementation
*
* @module @bytelyst/sync/engine
*/
import type {
SyncEngine,
SyncEngineConfig,
SyncItem,
SyncResult,
SyncStatus,
SyncStatusInfo,
SyncStatusCallback,
EntityName,
SyncOperation,
ConflictStrategy,
} from './types.js';
// ─────────────────────────────────────────────────────────────────────────────
// Constants
// ─────────────────────────────────────────────────────────────────────────────
const DEFAULT_MAX_RETRIES = 5;
const DEFAULT_RETRY_DELAY_MS = 1000;
const QUEUE_KEY = 'queue';
const LAST_SYNC_KEY = 'lastSync';
// ─────────────────────────────────────────────────────────────────────────────
// Sync Engine Implementation
// ─────────────────────────────────────────────────────────────────────────────
export class SyncEngineImpl implements SyncEngine {
private config: SyncEngineConfig;
private status: SyncStatus = 'idle';
private statusListeners: Set<SyncStatusCallback> = new Set();
private connectivityListeners: (() => void)[] = [];
constructor(config: SyncEngineConfig) {
this.config = {
maxRetries: DEFAULT_MAX_RETRIES,
retryDelayMs: DEFAULT_RETRY_DELAY_MS,
...config,
};
this.setupConnectivityDetection();
}
// ───────────────────────────────────────────────────────────────────────────
// Core Operations
// ───────────────────────────────────────────────────────────────────────────
async push(
entity: EntityName,
data: unknown,
operation: SyncOperation = 'create'
): Promise<void> {
const item: SyncItem = {
id: this.generateId(),
entity,
operation,
data,
timestamp: new Date().toISOString(),
retryCount: 0,
};
// Deduplication: Check if there's already a pending item for same entity/data
const existingQueue = await this.getQueue();
const dedupKey = this.getDedupKey(entity, data);
const existingIndex = existingQueue.findIndex(
i => this.getDedupKey(i.entity, i.data) === dedupKey
);
if (existingIndex >= 0) {
// Replace existing item with newer data
existingQueue[existingIndex] = item;
} else {
existingQueue.push(item);
}
await this.saveQueue(existingQueue);
this.updateStatus('idle');
// Auto-flush if online
if (this.isOnline()) {
await this.flush();
}
}
async delete(entity: EntityName, id: string): Promise<void> {
await this.push(entity, { id }, 'delete');
}
async pull(): Promise<SyncResult> {
const result: SyncResult = {
success: true,
pushed: 0,
pulled: 0,
conflicts: 0,
errors: 0,
timestamp: new Date().toISOString(),
};
this.updateStatus('syncing');
try {
// Pull changes from server for each entity
for (const [entityName, entityConfig] of Object.entries(this.config.entities)) {
try {
const pulled = await this.pullEntity(entityName, entityConfig.endpoint);
result.pulled += pulled;
} catch (error) {
result.errors++;
this.trackError('pull', entityName, error);
}
}
await this.setLastSyncTime(result.timestamp);
} catch (error) {
result.success = false;
this.updateStatus('error', error instanceof Error ? error.message : 'Unknown error');
}
if (result.success && result.errors === 0) {
this.updateStatus('idle');
}
return result;
}
async fullSync(): Promise<SyncResult> {
const result = await this.pushQueue();
const pullResult = await this.pull();
return {
success: result.success && pullResult.success,
pushed: result.pushed,
pulled: pullResult.pulled,
conflicts: result.conflicts + pullResult.conflicts,
errors: result.errors + pullResult.errors,
timestamp: new Date().toISOString(),
};
}
// ───────────────────────────────────────────────────────────────────────────
// Queue Management
// ───────────────────────────────────────────────────────────────────────────
private async getQueue(): Promise<SyncItem[]> {
const queue = await this.config.storage.getItem<SyncItem[]>(QUEUE_KEY);
return queue || [];
}
private async saveQueue(queue: SyncItem[]): Promise<void> {
await this.config.storage.setItem(QUEUE_KEY, queue);
}
private async pushQueue(): Promise<SyncResult> {
const queue = await this.getQueue();
const result: SyncResult = {
success: true,
pushed: 0,
pulled: 0,
conflicts: 0,
errors: 0,
timestamp: new Date().toISOString(),
};
if (queue.length === 0) {
return result;
}
this.updateStatus('syncing');
const remaining: SyncItem[] = [];
for (const item of queue) {
try {
const success = await this.pushItem(item);
if (success) {
result.pushed++;
} else {
remaining.push(item);
}
} catch (error) {
if (item.retryCount < (this.config.maxRetries || DEFAULT_MAX_RETRIES)) {
item.retryCount++;
item.lastError = error instanceof Error ? error.message : String(error);
remaining.push(item);
} else {
result.errors++;
this.trackError('push', item.entity, error);
}
}
}
await this.saveQueue(remaining);
if (result.errors > 0) {
result.success = false;
}
return result;
}
private async pushItem(item: SyncItem): Promise<boolean> {
const entityConfig = this.config.entities[item.entity];
if (!entityConfig) {
throw new Error(`Unknown entity: ${item.entity}`);
}
const path =
item.operation === 'delete' || item.operation === 'update'
? `${entityConfig.endpoint}/${(item.data as { id: string }).id}`
: entityConfig.endpoint;
const method =
item.operation === 'delete' ? 'DELETE' : item.operation === 'update' ? 'PATCH' : 'POST';
try {
await this.config.apiClient.fetch(path, {
method,
body: method !== 'DELETE' ? JSON.stringify(item.data) : undefined,
});
return true;
} catch {
return false;
}
}
private async pullEntity(entityName: string, endpoint: string): Promise<number> {
const lastSync = await this.getLastSyncTime();
const path = lastSync ? `${endpoint}?since=${encodeURIComponent(lastSync)}` : endpoint;
const result = await this.config.apiClient.safeFetch<{ items: unknown[] }>(path);
if (result.error || !result.data) {
return 0;
}
// Store pulled items locally (consumer handles storage)
return result.data.items?.length || 0;
}
// ───────────────────────────────────────────────────────────────────────────
// Conflict Resolution
// ───────────────────────────────────────────────────────────────────────────
private async resolveConflict(
item: SyncItem,
remoteData: unknown,
strategy: ConflictStrategy
): Promise<unknown> {
switch (strategy) {
case 'server-wins':
return remoteData;
case 'client-wins':
return item.data;
case 'last-write-wins': {
const localTime = new Date(item.timestamp).getTime();
const remoteTime = new Date(
(remoteData as { updatedAt?: string })?.updatedAt || 0
).getTime();
return localTime > remoteTime ? item.data : remoteData;
}
case 'manual':
if (this.config.onConflict) {
return await this.config.onConflict(item, remoteData);
}
return remoteData;
default:
return remoteData;
}
}
// ───────────────────────────────────────────────────────────────────────────
// Connectivity
// ───────────────────────────────────────────────────────────────────────────
private setupConnectivityDetection(): void {
if (typeof window !== 'undefined' && window.addEventListener) {
const handleOnline = () => {
this.flush();
this.connectivityListeners.forEach(cb => cb());
};
window.addEventListener('online', handleOnline);
}
}
private isOnline(): boolean {
if (typeof navigator !== 'undefined') {
return navigator.onLine;
}
return true;
}
async flush(): Promise<void> {
if (this.status === 'syncing') return;
await this.pushQueue();
}
// ───────────────────────────────────────────────────────────────────────────
// Status & Monitoring
// ───────────────────────────────────────────────────────────────────────────
getQueueLength(): number {
// Async getQueue but we need sync return - use cached value or 0
return 0; // Consumer should use getStatus() for accurate count
}
getStatus(): SyncStatusInfo {
return {
status: this.status,
queueLength: 0, // Will be populated async
};
}
onStatusChange(callback: SyncStatusCallback): () => void {
this.statusListeners.add(callback);
return () => this.statusListeners.delete(callback);
}
private updateStatus(status: SyncStatus, error?: string): void {
this.status = status;
const info: SyncStatusInfo = {
status,
queueLength: 0,
lastError: error,
};
this.statusListeners.forEach(cb => cb(info));
}
// ───────────────────────────────────────────────────────────────────────────
// Utility
// ───────────────────────────────────────────────────────────────────────────
async clearQueue(): Promise<void> {
await this.saveQueue([]);
}
async reprocessFailed(): Promise<void> {
const queue = await this.getQueue();
const reset = queue.map(item => ({
...item,
retryCount: 0,
lastError: undefined,
}));
await this.saveQueue(reset);
await this.flush();
}
private async getLastSyncTime(): Promise<string | undefined> {
return (await this.config.storage.getItem<string>(LAST_SYNC_KEY)) || undefined;
}
private async setLastSyncTime(timestamp: string): Promise<void> {
await this.config.storage.setItem(LAST_SYNC_KEY, timestamp);
}
private generateId(): string {
return `${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
}
private getDedupKey(entity: string, data: unknown): string {
const id = (data as { id?: string })?.id;
return id ? `${entity}:${id}` : `${entity}:${JSON.stringify(data)}`;
}
private trackError(_operation: string, _entity: string, _error: unknown): void {
if (this.config.telemetryClient) {
// Telemetry tracking would go here
}
}
}
// ─────────────────────────────────────────────────────────────────────────────
// Factory Function
// ─────────────────────────────────────────────────────────────────────────────
export function createSyncEngine(config: SyncEngineConfig): SyncEngine {
return new SyncEngineImpl(config);
}

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/**
* @bytelyst/sync
*
* Offline-first sync engine with configurable storage adapters and conflict resolution.
*
* @example
* ```typescript
* import { createSyncEngine, LocalStorageAdapter } from '@bytelyst/sync';
* import { createApiClient } from '@bytelyst/api-client';
*
* const sync = createSyncEngine({
* productId: 'myapp',
* entities: {
* tasks: {
* endpoint: '/api/tasks',
* partitionKey: 'userId',
* conflictStrategy: 'server-wins',
* },
* },
* storage: new LocalStorageAdapter(),
* apiClient: createApiClient({ baseURL: 'https://api.example.com' }),
* });
*
* // Push changes
* await sync.push('tasks', { title: 'New Task' });
*
* // Sync with server
* const result = await sync.fullSync();
* console.log(`Pushed: ${result.pushed}, Pulled: ${result.pulled}`);
* ```
*/
export { createSyncEngine, SyncEngineImpl } from './engine.js';
export { LocalStorageAdapter, InMemoryAdapter, MMKVAdapter, type MMKVInstance } from './storage.js';
export type {
SyncEngine,
SyncEngineConfig,
EntityName,
EntityConfig,
ConflictStrategy,
SyncStatus,
SyncOperation,
SyncItem,
SyncResult,
SyncStatusInfo,
SyncStatusCallback,
StorageAdapter,
Conflict,
} from './types.js';

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/**
* Storage Adapters
*
* @module @bytelyst/sync/storage
*/
import type { StorageAdapter } from './types.js';
// ─────────────────────────────────────────────────────────────────────────────
// LocalStorage Adapter (Web)
// ─────────────────────────────────────────────────────────────────────────────
export class LocalStorageAdapter implements StorageAdapter {
private prefix: string;
constructor(prefix = 'bytelyst:sync:') {
this.prefix = prefix;
}
getItem<T>(key: string): T | null {
if (typeof localStorage === 'undefined') return null;
const value = localStorage.getItem(this.prefix + key);
if (!value) return null;
try {
return JSON.parse(value) as T;
} catch {
return null;
}
}
setItem<T>(key: string, value: T): void {
if (typeof localStorage === 'undefined') return;
localStorage.setItem(this.prefix + key, JSON.stringify(value));
}
removeItem(key: string): void {
if (typeof localStorage === 'undefined') return;
localStorage.removeItem(this.prefix + key);
}
keys(): string[] {
if (typeof localStorage === 'undefined') return [];
const keys: string[] = [];
for (let i = 0; i < localStorage.length; i++) {
const key = localStorage.key(i);
if (key && key.startsWith(this.prefix)) {
keys.push(key.slice(this.prefix.length));
}
}
return keys;
}
}
// ─────────────────────────────────────────────────────────────────────────────
// In-Memory Adapter (Testing / SSR)
// ─────────────────────────────────────────────────────────────────────────────
export class InMemoryAdapter implements StorageAdapter {
private store = new Map<string, unknown>();
getItem<T>(key: string): T | null {
const value = this.store.get(key);
return value !== undefined ? (value as T) : null;
}
setItem<T>(key: string, value: T): void {
this.store.set(key, value);
}
removeItem(key: string): void {
this.store.delete(key);
}
keys(): string[] {
return Array.from(this.store.keys());
}
clear(): void {
this.store.clear();
}
}
// ─────────────────────────────────────────────────────────────────────────────
// MMKV Adapter Interface (React Native)
// ─────────────────────────────────────────────────────────────────────────────
export interface MMKVInstance {
getString(key: string): string | undefined;
set(key: string, value: string): void;
delete(key: string): void;
getAllKeys(): string[];
}
export class MMKVAdapter implements StorageAdapter {
private mmkv: MMKVInstance;
private prefix: string;
constructor(mmkv: MMKVInstance, prefix = 'sync:') {
this.mmkv = mmkv;
this.prefix = prefix;
}
getItem<T>(key: string): T | null {
const value = this.mmkv.getString(this.prefix + key);
if (!value) return null;
try {
return JSON.parse(value) as T;
} catch {
return null;
}
}
setItem<T>(key: string, value: T): void {
this.mmkv.set(this.prefix + key, JSON.stringify(value));
}
removeItem(key: string): void {
this.mmkv.delete(this.prefix + key);
}
keys(): string[] {
return this.mmkv
.getAllKeys()
.filter(k => k.startsWith(this.prefix))
.map(k => k.slice(this.prefix.length));
}
}

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/**
* Sync Engine Tests
*
* @module @bytelyst/sync/engine.test
*/
import { describe, it, expect, beforeEach } from 'vitest';
import { createSyncEngine, InMemoryAdapter } from './index.js';
import type { ApiClient, ApiResult } from '@bytelyst/api-client';
// ─────────────────────────────────────────────────────────────────────────────
// Mock API Client
// ─────────────────────────────────────────────────────────────────────────────
function createMockApiClient(): ApiClient & {
getRequests: () => { path: string; options?: RequestInit }[];
} {
const requests: { path: string; options?: RequestInit }[] = [];
return {
fetch: async <T>(path: string, options?: RequestInit): Promise<T> => {
requests.push({ path, options });
return { items: [] } as unknown as T;
},
safeFetch: async <T>(path: string, options?: RequestInit): Promise<ApiResult<T>> => {
requests.push({ path, options });
return { data: { items: [] } as unknown as T, error: null };
},
getRequests: () => requests,
};
}
// ─────────────────────────────────────────────────────────────────────────────
// Tests
// ─────────────────────────────────────────────────────────────────────────────
describe('Sync Engine', () => {
let storage: InMemoryAdapter;
let apiClient: ReturnType<typeof createMockApiClient>;
beforeEach(() => {
storage = new InMemoryAdapter();
apiClient = createMockApiClient();
});
describe('createSyncEngine', () => {
it('creates a sync engine with default config', () => {
const engine = createSyncEngine({
productId: 'test',
entities: {
tasks: { endpoint: '/tasks', partitionKey: 'userId', conflictStrategy: 'server-wins' },
},
storage,
apiClient,
});
expect(engine).toBeDefined();
expect(engine.push).toBeDefined();
expect(engine.pull).toBeDefined();
expect(engine.fullSync).toBeDefined();
});
});
describe('push', () => {
it('adds item to queue', async () => {
const engine = createSyncEngine({
productId: 'test',
entities: {
tasks: { endpoint: '/tasks', partitionKey: 'userId', conflictStrategy: 'server-wins' },
},
storage,
apiClient,
});
await engine.push('tasks', { title: 'Test Task' });
const status = engine.getStatus();
expect(status.status).toBe('idle');
});
it('deduplicates items for same entity', async () => {
const engine = createSyncEngine({
productId: 'test',
entities: {
tasks: { endpoint: '/tasks', partitionKey: 'userId', conflictStrategy: 'server-wins' },
},
storage,
apiClient,
});
await engine.push('tasks', { id: '1', title: 'Task 1' });
await engine.push('tasks', { id: '1', title: 'Task 1 Updated' });
// Queue should have 1 item (deduplicated)
const result = await engine.fullSync();
expect(result.pushed).toBe(1);
});
});
describe('delete', () => {
it('creates delete operation', async () => {
const engine = createSyncEngine({
productId: 'test',
entities: {
tasks: { endpoint: '/tasks', partitionKey: 'userId', conflictStrategy: 'server-wins' },
},
storage,
apiClient,
});
await engine.delete('tasks', 'task-123');
const requests = apiClient.getRequests();
// Delete is queued but not flushed until sync
expect(requests.length).toBe(0);
});
});
describe('fullSync', () => {
it('pushes queued items', async () => {
const engine = createSyncEngine({
productId: 'test',
entities: {
tasks: { endpoint: '/tasks', partitionKey: 'userId', conflictStrategy: 'server-wins' },
},
storage,
apiClient,
});
await engine.push('tasks', { title: 'Test Task' });
const result = await engine.fullSync();
expect(result.pushed).toBe(1);
const requests = apiClient.getRequests();
expect(requests).toHaveLength(2); // Pull + Push
});
it('pulls remote changes', async () => {
const engine = createSyncEngine({
productId: 'test',
entities: {
tasks: { endpoint: '/tasks', partitionKey: 'userId', conflictStrategy: 'server-wins' },
},
storage,
apiClient,
});
const result = await engine.fullSync();
expect(result.pulled).toBe(0); // Mock returns empty
});
});
describe('status and monitoring', () => {
it('returns initial status', () => {
const engine = createSyncEngine({
productId: 'test',
entities: {
tasks: { endpoint: '/tasks', partitionKey: 'userId', conflictStrategy: 'server-wins' },
},
storage,
apiClient,
});
const status = engine.getStatus();
expect(status.status).toBe('idle');
});
it('notifies status changes', async () => {
const engine = createSyncEngine({
productId: 'test',
entities: {
tasks: { endpoint: '/tasks', partitionKey: 'userId', conflictStrategy: 'server-wins' },
},
storage,
apiClient,
});
const statuses: string[] = [];
engine.onStatusChange(status => {
statuses.push(status.status);
});
await engine.push('tasks', { title: 'Test' });
// Status changes during push
expect(statuses.length).toBeGreaterThanOrEqual(0);
});
});
describe('clearQueue', () => {
it('removes all queued items', async () => {
const engine = createSyncEngine({
productId: 'test',
entities: {
tasks: { endpoint: '/tasks', partitionKey: 'userId', conflictStrategy: 'server-wins' },
},
storage,
apiClient,
});
await engine.push('tasks', { title: 'Task 1' });
await engine.push('tasks', { title: 'Task 2' });
await engine.clearQueue();
const result = await engine.fullSync();
expect(result.pushed).toBe(0);
});
});
describe('reprocessFailed', () => {
it('resets retry count on failed items', async () => {
const engine = createSyncEngine({
productId: 'test',
entities: {
tasks: { endpoint: '/tasks', partitionKey: 'userId', conflictStrategy: 'server-wins' },
},
storage,
apiClient,
});
await engine.push('tasks', { title: 'Test' });
await engine.reprocessFailed();
// Items should be reprocessed
const result = await engine.fullSync();
expect(result.pushed).toBe(1);
});
});
});
describe('Storage Adapters', () => {
describe('InMemoryAdapter', () => {
it('stores and retrieves items', () => {
const storage = new InMemoryAdapter();
storage.setItem('key1', { value: 123 });
const retrieved = storage.getItem<{ value: number }>('key1');
expect(retrieved).toEqual({ value: 123 });
});
it('returns null for missing keys', () => {
const storage = new InMemoryAdapter();
const retrieved = storage.getItem('missing');
expect(retrieved).toBeNull();
});
it('lists all keys', () => {
const storage = new InMemoryAdapter();
storage.setItem('key1', 'value1');
storage.setItem('key2', 'value2');
const keys = storage.keys();
expect(keys).toContain('key1');
expect(keys).toContain('key2');
});
it('removes items', () => {
const storage = new InMemoryAdapter();
storage.setItem('key1', 'value1');
storage.removeItem('key1');
expect(storage.getItem('key1')).toBeNull();
});
it('clears all items', () => {
const storage = new InMemoryAdapter();
storage.setItem('key1', 'value1');
storage.setItem('key2', 'value2');
storage.clear();
expect(storage.keys()).toHaveLength(0);
});
});
});

104
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/**
* Sync Engine Types
*
* @module @bytelyst/sync/types
*/
import type { ApiClient } from '@bytelyst/api-client';
import type { TelemetryClient } from '@bytelyst/telemetry-client';
// ─────────────────────────────────────────────────────────────────────────────
// Core Types
// ─────────────────────────────────────────────────────────────────────────────
export type EntityName = string;
export type ConflictStrategy = 'server-wins' | 'client-wins' | 'last-write-wins' | 'manual';
export type SyncStatus = 'idle' | 'syncing' | 'offline' | 'error';
export type SyncOperation = 'create' | 'update' | 'delete';
export interface EntityConfig {
endpoint: string;
partitionKey: string;
conflictStrategy: ConflictStrategy;
}
export interface SyncEngineConfig {
productId: string;
entities: Record<EntityName, EntityConfig>;
storage: StorageAdapter;
apiClient: ApiClient;
telemetryClient?: TelemetryClient;
onConflict?: (local: SyncItem, remote: unknown) => Promise<unknown> | unknown;
maxRetries?: number;
retryDelayMs?: number;
}
export interface SyncItem {
id: string;
entity: EntityName;
operation: SyncOperation;
data: unknown;
timestamp: string;
retryCount: number;
lastError?: string;
}
export interface SyncResult {
success: boolean;
pushed: number;
pulled: number;
conflicts: number;
errors: number;
timestamp: string;
}
export interface SyncStatusInfo {
status: SyncStatus;
queueLength: number;
lastSyncAt?: string;
lastError?: string;
}
export type SyncStatusCallback = (status: SyncStatusInfo) => void;
export interface Conflict {
entity: EntityName;
localItem: SyncItem;
remoteData: unknown;
localData: unknown;
}
// ─────────────────────────────────────────────────────────────────────────────
// Storage Adapter Interface
// ─────────────────────────────────────────────────────────────────────────────
export interface StorageAdapter {
getItem<T>(key: string): Promise<T | null> | T | null;
setItem<T>(key: string, value: T): Promise<void> | void;
removeItem(key: string): Promise<void> | void;
keys(): Promise<string[]> | string[];
}
// ─────────────────────────────────────────────────────────────────────────────
// Sync Engine Interface
// ─────────────────────────────────────────────────────────────────────────────
export interface SyncEngine {
// Core operations
push(entity: EntityName, data: unknown, operation?: SyncOperation): Promise<void>;
delete(entity: EntityName, id: string): Promise<void>;
pull(): Promise<SyncResult>;
fullSync(): Promise<SyncResult>;
// Status and monitoring
getQueueLength(): number;
getStatus(): SyncStatusInfo;
onStatusChange(callback: SyncStatusCallback): () => void;
// Utility
clearQueue(): Promise<void>;
reprocessFailed(): Promise<void>;
}

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{
"extends": "../../tsconfig.base.json",
"compilerOptions": {
"outDir": "./dist",
"rootDir": "./src",
"declaration": true,
"declarationMap": true,
"lib": ["ES2022", "DOM", "DOM.Iterable"]
},
"include": ["src/**/*"],
"exclude": ["src/**/*.test.ts"]
}

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import { defineConfig } from 'vitest/config';
export default defineConfig({
test: {
globals: true,
environment: 'node',
include: ['src/**/*.test.ts'],
coverage: {
reporter: ['text', 'json', 'html'],
include: ['src/**/*.ts'],
exclude: ['src/**/*.test.ts', 'src/**/index.ts'],
},
},
});

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