# ✅ Collector Handoff Persistence - Complete

## Overview

The Collector AI now **persists its checklist state** to Firestore on every chat turn, ensuring the checklist survives across sessions and page refreshes.

---

## What Was Added

### 1. **Structured Output from AI**

The Collector AI now returns both:
- **Conversational reply** (user-facing message)
- **Collector handoff data** (structured checklist state)

```typescript
{
  "reply": "✅ I see you've uploaded 2 documents. Anything else?",
  "collectorHandoff": {
    "hasDocuments": true,
    "documentCount": 2,
    "githubConnected": false,
    "extensionLinked": false,
    "readyForExtraction": false
  }
}
```

---

### 2. **Persistence to Firestore**

**Location:** `projects/{projectId}/phaseData.phaseHandoffs.collector`

**Structure:**
```typescript
interface CollectorPhaseHandoff {
  phase: 'collector';
  readyForNextPhase: boolean;       // Ready for extraction?
  confidence: number;               // 0.5 or 0.9
  confirmed: {
    hasDocuments?: boolean;         // Docs uploaded?
    documentCount?: number;         // How many?
    githubConnected?: boolean;      // GitHub connected?
    githubRepo?: string;            // Repo name
    extensionLinked?: boolean;      // Extension connected?
  };
  uncertain: {
    extensionDeclined?: boolean;    // User said no to extension?
    noGithubYet?: boolean;          // User doesn't have GitHub?
  };
  missing: string[];                // What's still needed
  questionsForUser: string[];       // Follow-up questions
  sourceEvidence: string[];         // Source references
  version: string;                  // "1.0"
  timestamp: string;                // ISO timestamp
}
```

---

### 3. **Code Changes**

#### **`app/api/ai/chat/route.ts`**

Added structured output schema:
```typescript
const ChatReplySchema = z.object({
  reply: z.string(),
  collectorHandoff: z.object({
    hasDocuments: z.boolean().optional(),
    documentCount: z.number().optional(),
    githubConnected: z.boolean().optional(),
    githubRepo: z.string().optional(),
    extensionLinked: z.boolean().optional(),
    extensionDeclined: z.boolean().optional(),
    noGithubYet: z.boolean().optional(),
    readyForExtraction: z.boolean().optional(),
  }).optional(),
});
```

Added persistence logic:
```typescript
// If in collector mode and AI provided handoff data, persist it
if (resolvedMode === 'collector_mode' && reply.collectorHandoff) {
  const handoff: CollectorPhaseHandoff = {
    phase: 'collector',
    readyForNextPhase: reply.collectorHandoff.readyForExtraction ?? false,
    confidence: reply.collectorHandoff.readyForExtraction ? 0.9 : 0.5,
    confirmed: {
      hasDocuments: reply.collectorHandoff.hasDocuments,
      documentCount: reply.collectorHandoff.documentCount,
      githubConnected: reply.collectorHandoff.githubConnected,
      githubRepo: reply.collectorHandoff.githubRepo,
      extensionLinked: reply.collectorHandoff.extensionLinked,
    },
    uncertain: {
      extensionDeclined: reply.collectorHandoff.extensionDeclined,
      noGithubYet: reply.collectorHandoff.noGithubYet,
    },
    missing: [],
    questionsForUser: [],
    sourceEvidence: [],
    version: '1.0',
    timestamp: new Date().toISOString(),
  };

  // Persist to Firestore
  await adminDb.collection('projects').doc(projectId).set(
    {
      'phaseData.phaseHandoffs.collector': handoff,
    },
    { merge: true }
  );
}
```

Added console logging:
```typescript
console.log(`[AI Chat] Collector handoff persisted:`, {
  hasDocuments: handoff.confirmed.hasDocuments,
  githubConnected: handoff.confirmed.githubConnected,
  extensionLinked: handoff.confirmed.extensionLinked,
  readyForExtraction: handoff.readyForNextPhase,
});
```

---

#### **`lib/ai/prompts/collector.ts`**

Added structured output instructions:

```markdown
**STRUCTURED OUTPUT:**
In addition to your conversational reply, you MUST also return a collectorHandoff object tracking the checklist state:

```json
{
  "reply": "Your conversational response here",
  "collectorHandoff": {
    "hasDocuments": true,              // Are documents uploaded?
    "documentCount": 5,                // How many?
    "githubConnected": true,           // Is GitHub connected?
    "githubRepo": "user/repo",         // Repo name if connected
    "extensionLinked": false,          // Is extension connected?
    "extensionDeclined": false,        // Did user say no to extension?
    "noGithubYet": false,              // Did user say they don't have GitHub yet?
    "readyForExtraction": false        // Is user ready to move to extraction? (true when they say "yes" to "Is that everything?")
  }
}
```

Update this object on EVERY response based on the current state of:
- What you see in projectContext (documents, GitHub, extension)
- What the user explicitly confirms or declines

This data will be persisted to Firestore so the checklist state survives across sessions.
```

---

## How It Works

### **Flow:**

1. **User sends message** → "I uploaded some docs"

2. **Collector AI analyzes** `projectContext`:
   - Sees `knowledgeSummary.bySourceType.imported_document = 3`
   - Sees `project.githubRepo = null`
   - Sees no extension data

3. **AI responds with structured output**:
   ```json
   {
     "reply": "✅ I see you've uploaded 3 documents. Do you have a GitHub repo?",
     "collectorHandoff": {
       "hasDocuments": true,
       "documentCount": 3,
       "githubConnected": false,
       "extensionLinked": false,
       "readyForExtraction": false
     }
   }
   ```

4. **Backend persists handoff to Firestore**:
   - Writes to `projects/{projectId}/phaseData.phaseHandoffs.collector`
   - Logs checklist state to console

5. **On next page load/refresh**:
   - Checklist state is still there
   - AI can see previous state and continue from where it left off

---

## Benefits

### ✅ **Checklist Survives Sessions**
- User can close browser and come back
- Progress is never lost

### ✅ **Debugging & Analytics**
- Can see exact checklist state at any point
- Helps debug "why did AI ask that?" questions

### ✅ **Smart Handoff Protocol**
- When `readyForExtraction = true`, system knows to transition
- Can build automatic phase transitions later

### ✅ **Historical Tracking**
- Timestamp on every update
- Can see how checklist evolved over time

---

## Example Firestore Document

```json
{
  "projects": {
    "abc123": {
      "name": "My SaaS",
      "currentPhase": "collector",
      "phaseData": {
        "phaseHandoffs": {
          "collector": {
            "phase": "collector",
            "readyForNextPhase": false,
            "confidence": 0.5,
            "confirmed": {
              "hasDocuments": true,
              "documentCount": 3,
              "githubConnected": true,
              "githubRepo": "user/my-saas",
              "extensionLinked": false
            },
            "uncertain": {
              "extensionDeclined": false,
              "noGithubYet": false
            },
            "missing": [],
            "questionsForUser": [],
            "sourceEvidence": [],
            "version": "1.0",
            "timestamp": "2025-11-17T22:30:00.000Z"
          }
        }
      }
    }
  }
}
```

---

## Testing

### **Manual Test:**

1. Start a new project chat
2. Say: "I uploaded some documents"
3. Check Firestore:
   ```bash
   # In Firebase Console → Firestore
   projects/{projectId}/phaseData.phaseHandoffs.collector
   ```
4. Verify `confirmed.hasDocuments = true`
5. Refresh page
6. Send another message
7. Verify handoff updates with latest state

### **Console Output:**

Watch for this log on each collector message:
```
[AI Chat] Collector handoff persisted: {
  hasDocuments: true,
  githubConnected: false,
  extensionLinked: false,
  readyForExtraction: false
}
```

---

## Future Enhancements

### **1. Auto-Transition to Extraction**

When `readyForExtraction = true`, automatically switch mode:

```typescript
if (handoff.readyForNextPhase) {
  await adminDb.collection('projects').doc(projectId).update({
    currentPhase: 'analyzed',
  });
  
  // Next message will be in extraction_review_mode
}
```

### **2. Visual Checklist UI**

Display the checklist state in the UI:

```tsx
<ChecklistCard>
  <ChecklistItem 
    checked={handoff.confirmed.hasDocuments}
    label="Documents uploaded"
  />
  <ChecklistItem 
    checked={handoff.confirmed.githubConnected}
    label="GitHub connected"
  />
  <ChecklistItem 
    checked={handoff.confirmed.extensionLinked}
    label="Extension linked"
  />
</ChecklistCard>
```

### **3. Analytics Dashboard**

Track average time to complete collector phase:
- Time from first message to `readyForExtraction = true`
- Most common blockers (missing docs? no GitHub?)
- Drop-off points

### **4. Smart Reminders**

If user hasn't interacted in 24 hours and checklist incomplete:
- Send email: "Hey! You're 2/3 done setting up your project..."
- Show prompt on next login

---

## Files Changed

1. ✅ `app/api/ai/chat/route.ts` - Added handoff persistence
2. ✅ `lib/ai/prompts/collector.ts` - Added structured output instructions
3. ✅ `lib/types/phase-handoff.ts` - Type already existed (no changes needed)

---

## Status

✅ **Complete and deployed**

- Collector AI returns structured handoff data
- Handoff data persists to Firestore on every message
- Console logging for debugging
- No linting errors
- Dev server restarted with changes

---

## Summary

The Collector AI now **maintains persistent checklist state** in Firestore, ensuring users never lose progress and enabling future features like:
- Auto-transitions between phases
- Visual checklist UI
- Analytics and reminders

**Status:** 🚀 **Ready for testing!**

