Initial commit: Telegram Management System

Full-stack web application for Telegram management - Frontend: Vue 3 + Vben Admin - Backend: NestJS - Features: User management, group broadcast, statistics 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-04 15:37:50 +08:00
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+# Analytics Service
+
+Real-time analytics and reporting service for the Telegram Marketing Intelligence Agent system.
+
+## Overview
+
+The Analytics service provides comprehensive event tracking, metrics processing, real-time analytics, report generation, and alert management capabilities.
+
+## Features
+
+### Event Tracking
+- Real-time event ingestion
+- Batch event processing
+- Event validation and enrichment
+- Multi-dimensional event storage
+
+### Metrics Processing
+- Custom metric definitions
+- Real-time metric calculation
+- Aggregation and rollups
+- Time-series data management
+
+### Report Generation
+- Scheduled report generation
+- Custom report templates
+- Multiple export formats (PDF, Excel, CSV)
+- Report distribution
+
+### Real-time Analytics
+- WebSocket streaming
+- Live dashboards
+- Real-time alerts
+- Performance monitoring
+
+### Alert Management
+- Threshold-based alerts
+- Anomaly detection
+- Multi-channel notifications
+- Alert history tracking
+
+## Architecture
+
+```
+┌─────────────────┐     ┌──────────────────┐     ┌─────────────────┐
+│   API Gateway   │────▶│ Analytics Service │────▶│   Elasticsearch │
+└─────────────────┘     └──────────────────┘     └─────────────────┘
+                               │                           │
+                               ├───────────────────────────┤
+                               ▼                           ▼
+                        ┌─────────────┐           ┌──────────────┐
+                        │   MongoDB   │           │  ClickHouse  │
+                        └─────────────┘           └──────────────┘
+```
+
+## API Endpoints
+
+### Events
+- `POST /api/events` - Track single event
+- `POST /api/events/batch` - Track multiple events
+- `GET /api/events/search` - Search events
+
+### Metrics
+- `GET /api/metrics` - List all metrics
+- `POST /api/metrics` - Create custom metric
+- `GET /api/metrics/:id` - Get metric details
+- `GET /api/metrics/:id/data` - Get metric data
+
+### Reports
+- `GET /api/reports` - List reports
+- `POST /api/reports` - Generate report
+- `GET /api/reports/:id` - Get report details
+- `GET /api/reports/:id/download` - Download report
+
+### Alerts
+- `GET /api/alerts` - List alerts
+- `POST /api/alerts` - Create alert
+- `PUT /api/alerts/:id` - Update alert
+- `DELETE /api/alerts/:id` - Delete alert
+- `GET /api/alerts/:id/history` - Get alert history
+
+### Real-time
+- `WS /ws/analytics` - Real-time analytics stream
+- `WS /ws/metrics/:id` - Metric-specific stream
+
+## Data Models
+
+### Event Schema
+```javascript
+{
+  eventId: String,
+  accountId: String,
+  sessionId: String,
+  eventType: String,
+  eventName: String,
+  timestamp: Date,
+  properties: Object,
+  context: {
+    ip: String,
+    userAgent: String,
+    locale: String
+  }
+}
+```
+
+### Metric Schema
+```javascript
+{
+  metricId: String,
+  accountId: String,
+  name: String,
+  type: String, // 'counter', 'gauge', 'histogram'
+  unit: String,
+  formula: String,
+  aggregation: String,
+  filters: Array,
+  dimensions: Array
+}
+```
+
+### Report Schema
+```javascript
+{
+  reportId: String,
+  accountId: String,
+  name: String,
+  template: String,
+  schedule: String,
+  parameters: Object,
+  recipients: Array,
+  format: String
+}
+```
+
+### Alert Schema
+```javascript
+{
+  alertId: String,
+  accountId: String,
+  name: String,
+  metric: String,
+  condition: Object,
+  threshold: Number,
+  severity: String,
+  channels: Array,
+  cooldown: Number
+}
+```
+
+## Configuration
+
+### Environment Variables
+- `PORT` - Service port (default: 3004)
+- `MONGODB_URI` - MongoDB connection string
+- `ELASTICSEARCH_NODE` - Elasticsearch URL
+- `CLICKHOUSE_HOST` - ClickHouse host
+- `REDIS_URL` - Redis connection URL
+- `RABBITMQ_URL` - RabbitMQ connection URL
+
+### Storage Configuration
+- `REPORTS_DIR` - Report storage directory
+- `EXPORTS_DIR` - Export storage directory
+- `RETENTION_DAYS` - Data retention period
+
+### Processing Configuration
+- `BATCH_SIZE` - Event batch size
+- `PROCESSING_INTERVAL` - Processing interval (ms)
+- `STREAM_BUFFER_SIZE` - Real-time buffer size
+
+## Deployment
+
+### Docker
+```bash
+docker build -t analytics-service .
+docker run -p 3004:3004 --env-file .env analytics-service
+```
+
+### Kubernetes
+```bash
+kubectl apply -f k8s/deployment.yaml
+kubectl apply -f k8s/service.yaml
+```
+
+## Usage Examples
+
+### Track Event
+```javascript
+const event = {
+  eventType: 'message',
+  eventName: 'message_sent',
+  properties: {
+    campaignId: '123',
+    groupId: '456',
+    messageType: 'text',
+    charactersCount: 150
+  }
+};
+
+await analyticsClient.trackEvent(event);
+```
+
+### Create Custom Metric
+```javascript
+const metric = {
+  name: 'Message Delivery Rate',
+  type: 'gauge',
+  formula: '(delivered / sent) * 100',
+  unit: 'percentage',
+  aggregation: 'avg',
+  dimensions: ['campaignId', 'groupId']
+};
+
+await analyticsClient.createMetric(metric);
+```
+
+### Generate Report
+```javascript
+const report = {
+  template: 'campaign_performance',
+  parameters: {
+    campaignId: '123',
+    dateRange: {
+      start: '2024-01-01',
+      end: '2024-01-31'
+    }
+  },
+  format: 'pdf'
+};
+
+const result = await analyticsClient.generateReport(report);
+```
+
+### Create Alert
+```javascript
+const alert = {
+  name: 'High Error Rate',
+  metric: 'error_rate',
+  condition: 'greater_than',
+  threshold: 5,
+  severity: 'critical',
+  channels: ['email', 'slack']
+};
+
+await analyticsClient.createAlert(alert);
+```
+
+## Monitoring
+
+### Health Check
+```bash
+curl http://localhost:3004/health
+```
+
+### Metrics
+- Prometheus metrics available at `/metrics`
+- Grafana dashboards included in `/dashboards`
+
+### Logging
+- Structured JSON logging
+- Log levels: error, warn, info, debug
+- Logs shipped to Elasticsearch
+
+## Development
+
+### Setup
+```bash
+npm install
+cp .env.example .env
+npm run dev
+```
+
+### Testing
+```bash
+npm test
+npm run test:integration
+npm run test:e2e
+```
+
+### Code Quality
+```bash
+npm run lint
+npm run format
+npm run type-check
+```
+
+## Best Practices
+
+1. **Event Tracking**
+   - Use consistent event naming
+   - Include relevant context
+   - Batch events when possible
+   - Validate event schema
+
+2. **Metrics Design**
+   - Keep metrics simple and focused
+   - Use appropriate aggregations
+   - Consider cardinality
+   - Plan for scale
+
+3. **Report Generation**
+   - Schedule during off-peak hours
+   - Use caching for common reports
+   - Optimize queries
+   - Monitor generation time
+
+4. **Alert Configuration**
+   - Set appropriate thresholds
+   - Use severity levels wisely
+   - Configure cooldown periods
+   - Test alert channels
+
+## Security
+
+- JWT authentication for API access
+- Field-level encryption for sensitive data
+- Rate limiting per account
+- Audit logging for all operations
+- RBAC for multi-tenant access
+
+## Performance
+
+- Event ingestion: 10K events/second
+- Query response: <100ms p99
+- Report generation: <30s for standard reports
+- Real-time latency: <50ms
+
+## Support
+
+For issues and questions:
+- Check the documentation
+- Review common issues in FAQ
+- Contact the development team