# Session Persistence - Deployment Summary

## ✅ Completed Tasks

### 1. Fixed Session Persistence Bug in TypeScript SDK

**Repository:** `openonion/connectonion-ts`
**Version:** `0.0.9` (published to npm)

#### Changes Made

**File:** `src/connect.ts`

1. **Added session persistence infrastructure:**
   - `_saveSession()` - Save full session to localStorage
   - `_loadSession()` - Load session from localStorage
   - `_loadActiveSessionId()` - Get active session_id
   - `_clearSession()` - Clear specific session

2. **Load session before INPUT:**
   - Automatically restores session from localStorage after browser refresh
   - Checks localStorage if `_currentSession` is null in memory

3. **Save session on OUTPUT:**
   - Persists updated session state after each agent response
   - Keeps conversation context alive

4. **Removed session clears on connection errors:**
   - ❌ ERROR messages - DON'T clear (keep for retry)
   - ❌ WebSocket errors - DON'T clear (keep for retry)
   - ❌ Connection close - DON'T clear (keep for retry)
   - ❌ Connection timeout - DON'T clear (keep for retry)
   - ❌ Successful OUTPUT - DON'T clear (keep for next message)
   - ✅ Only clear on explicit `reset()` call

5. **Updated `reset()` method:**
   - Clears session from localStorage when user explicitly resets

**File:** `src/react/index.ts`

- Updated `useAgent` hook to require `sessionId` parameter
- Store sessions per `sessionId` instead of per agent
- Restore session on `sessionId` change

#### What This Fixes

**Before (Bug):**
```
User: "What is Python?"
Agent: "Python is a programming language..."
  → Session cleared after every message ❌

User: "Tell me more"
  → No context, fresh conversation ❌
Agent: "Tell me more about what?"
```

**After (Fixed):**
```
User: "What is Python?"
Agent: "Python is a programming language..."
  → Session saved and kept alive ✅

User: "Tell me more"
  → Full conversation context ✅
Agent: "Python emphasizes readability and simplicity..."

Connection lost → Retry
  → Session still in localStorage ✅
  → Can continue conversation ✅
```

### 2. Published to npm

**Package:** `connectonion@0.0.9`
**Registry:** https://www.npmjs.com/package/connectonion

**Commits:**
1. Fix session persistence: Keep sessions on connection errors
2. Update React hook to require sessionId parameter
3. Remove .co/logs from git tracking

**Git tags:** `v0.0.9`

### 3. Deployed oo-chat

**Repository:** `openonion/oo-chat`
**Platform:** Vercel
**Production URL:** https://oo-chat-lklb61ecl-yingxiaohaooutlookcoms-projects.vercel.app

**Changes:**
- Updated `package.json` to use `connectonion@^0.0.9` from npm
- Changed from local file reference to published package

**Result:** ✅ Deployment successful

## Design Principles Applied

1. **SDK is simple** - Just save/load/clear, no policy decisions
2. **Client is source of truth** - Session in localStorage, not server disk
3. **Session ID is the flag** - Different conversations = different IDs
4. **Keep sessions alive** - Only clear on explicit user action (reset)
5. **Application decides cleanup** - SDK doesn't enforce limits or TTL
6. **Separation of concerns** - SDK persists, application manages

## Benefits

### For Users

- ✅ Browser refresh preserves conversation
- ✅ Connection errors don't lose context
- ✅ Can retry failed requests with full history
- ✅ Multi-turn conversations work correctly

### For Developers

- ✅ Simple API - sessions handled automatically
- ✅ Flexible - application chooses cleanup policy
- ✅ Stateless server - no server-side session storage needed
- ✅ Type-safe - full TypeScript support

## Testing Checklist

- [x] TypeScript SDK builds without errors
- [x] Published to npm successfully
- [x] oo-chat deploys to Vercel successfully
- [ ] Browser refresh preserves conversation (user testing)
- [ ] Connection error allows retry with context (user testing)
- [ ] Multi-turn conversations work (user testing)

## Next Steps (Optional)

### Application Layer (oo-chat)

The SDK provides session persistence infrastructure. oo-chat can optionally add its own cleanup policies:

```typescript
// Example: Limit conversations in Zustand store
createConversation: (sessionId, agentAddress) => {
  set(state => ({
    // Keep only last 100 conversations
    conversations: [newConv, ...state.conversations].slice(0, 100)
  }))
}

// Example: Add "Clear Old Conversations" button
clearOldConversations: (olderThanDays: number) => {
  const cutoff = Date.now() - (olderThanDays * 24 * 60 * 60 * 1000);
  set(state => ({
    conversations: state.conversations.filter(c =>
      new Date(c.createdAt).getTime() > cutoff
    )
  }))
}
```

But this is **application's choice** - not SDK's responsibility.

## Links

- **npm package:** https://www.npmjs.com/package/connectonion
- **TypeScript SDK repo:** https://github.com/openonion/connectonion-ts
- **oo-chat repo:** https://github.com/openonion/oo-chat
- **oo-chat production:** https://oo-chat-lklb61ecl-yingxiaohaooutlookcoms-projects.vercel.app
- **Documentation:** `/docs/session-persistence-*.md`
