# Smart Tree SSE Server Specification
> "Real-time directory streaming at quantum speeds!" 🌊⚡
## Overview
Smart Tree SSE server mode provides real-time directory monitoring with quantum-compressed updates streamed to clients via Server-Sent Events.
## Usage
```bash
# Start SSE server on default port 8973
st --serve /path/to/watch
# Custom port and options
st --serve /path/to/watch --port 3000 --mode quantum
# Multiple paths
st --serve /project1 /project2 --mode summary-ai
# With CORS for web apps
st --serve . --cors "*" --compress
```
## HTTP Endpoints
### SSE Stream: `GET /events`
```javascript
const eventSource = new EventSource('http://localhost:8973/events');
eventSource.onmessage = (event) => {
const data = JSON.parse(event.data);
console.log('Tree update:', data);
};
eventSource.addEventListener('quantum', (event) => {
// Quantum-compressed update
const compressed = event.data;
// Decompress and process...
});
```
### REST Endpoints
```
GET /tree?path=/src&mode=quantum
GET /stats?path=/src
GET /search?q=TODO&path=/src
GET /compress?path=/src/file.md&format=marqant
POST /watch { "path": "/new/path" }
DELETE /watch { "path": "/old/path" }
```
## Event Types
### 1. Initial Tree Event
```json
{
"event": "tree",
"data": {
"path": "/project",
"mode": "quantum",
"compressed": "QTN1:AQID...",
"stats": {
"files": 1234,
"dirs": 56,
"size": 78901234
}
}
}
```
### 2. File Change Events
```json
{
"event": "change",
"data": {
"type": "modified|created|deleted|renamed",
"path": "/project/src/main.rs",
"size": 1234,
"timestamp": "2025-07-16T10:30:00Z",
"delta": "QTN1:DELTA..." // Quantum delta
}
}
```
### 3. Directory Statistics
```json
{
"event": "stats",
"data": {
"path": "/project",
"interval": "5m",
"changes": 42,
"growth": "+1.2MB",
"hot_files": ["src/main.rs", "Cargo.toml"]
}
}
```
### 4. Compressed Batch Updates
```json
{
"event": "quantum",
"data": "QTN1:BATCH:..." // Multiple changes compressed
}
```
## Implementation Architecture
```rust
pub struct SseServer {
watcher: RecommendedWatcher,
clients: Arc<Mutex<Vec<SseClient>>>,
compression_mode: OutputMode,
paths: Vec<PathBuf>,
}
impl SseServer {
pub async fn start(config: SseConfig) -> Result<()> {
// Setup file watcher
let (tx, rx) = channel();
let watcher = RecommendedWatcher::new(tx, Config::default())?;
// Watch paths
for path in &config.paths {
watcher.watch(path, RecursiveMode::Recursive)?;
}
// HTTP server
let app = Router::new()
.route("/events", get(sse_handler))
.route("/tree", get(tree_handler))
.route("/stats", get(stats_handler))
.with_state(AppState { watcher, clients });
Server::bind(&config.addr)
.serve(app.into_make_service())
.await?;
}
}
```
## Compression Strategies
### 1. Full Tree Compression
- Initial connection: Send full quantum tree
- Updates: Send quantum deltas only
### 2. Incremental Updates
- Track client state
- Send only changes since last event
- Automatic rebasing on reconnect
### 3. Smart Batching
- Aggregate rapid changes
- Compress multiple events together
- Send every N ms or M changes
## Client Libraries
### JavaScript/TypeScript
```typescript
import { SmartTreeSSE } from '@smart-tree/sse-client';
const tree = new SmartTreeSSE('http://localhost:8973');
tree.on('change', (event) => {
console.log(`File ${event.path} was ${event.type}`);
});
tree.on('quantum', async (compressed) => {
const tree = await tree.decompress(compressed);
renderTree(tree);
});
```
### Rust Client
```rust
use smart_tree_sse::SseClient;
let mut client = SseClient::connect("http://localhost:8973").await?;
while let Some(event) = client.next().await {
match event? {
Event::Change { path, change_type } => {
println!("Changed: {:?}", path);
}
Event::Quantum(data) => {
let tree = decompress_quantum(&data)?;
}
}
}
```
## Use Cases
### 1. Live Development Dashboard
```javascript
// Real-time project statistics
eventSource.addEventListener('stats', (e) => {
updateDashboard(JSON.parse(e.data));
});
```
### 2. AI-Powered Code Assistant
```python
# Stream changes to AI for real-time analysis
async for event in tree_sse.stream():
if event.type == 'change':
await ai.analyze_change(event.path, event.delta)
```
### 3. Distributed Build System
```rust
// Watch for changes, trigger builds
client.on_change(|change| {
if change.path.ends_with(".rs") {
build_queue.push(change.path);
}
});
```
### 4. Cloud Sync
```go
// Sync quantum deltas to cloud
for event := range sseClient.Events() {
if event.Type == "quantum" {
cloudStorage.PushDelta(event.Data)
}
}
```
## Performance Optimizations
1. **Compression Cache**: Pre-compress common requests
2. **Delta Encoding**: Send only changes, not full trees
3. **Client State Tracking**: Remember what each client has
4. **Parallel Compression**: Use thread pool for quantum encoding
5. **Zero-Copy Streaming**: Direct memory to network
## Security
```bash
# Authentication
st --serve . --auth-token $SECRET_TOKEN
# HTTPS with auto-cert
st --serve . --https --domain tree.example.com
# IP allowlist
st --serve . --allow "192.168.1.0/24,10.0.0.0/8"
```
## Future Extensions
1. **WebSocket upgrade**: Bidirectional communication
2. **GraphQL endpoint**: Query specific parts
3. **gRPC streaming**: For high-performance clients
4. **P2P mode**: Clients share updates
5. **Blockchain integration**: Immutable change history
*"From filesystem to flight stream - Smart Tree takes off!"* 🚀🎸