# DSS Self-Debugging Methodology

**Purpose**: Use DSS to debug DSS using its own infrastructure  
**Principle**: Self-referential debugging - the system observes itself  
**Date**: 2025-12-05

---

## Overview: Self-Referential Debugging Architecture

```
DSS Running (Dashboard/Admin UI)
    ↓
Audit Logger (Records all actions)
    ├─ User interactions
    ├─ API calls
    ├─ Permission checks
    ├─ State changes
    └─ Errors (with stack traces)
    ↓
Workflow Persistence (Snapshots)
    ├─ Current page state
    ├─ User/team context
    ├─ Component states
    └─ Figma connection status
    ↓
Error Recovery (Crash Detection)
    ├─ Recovery points
    ├─ Error categorization
    ├─ Stack traces
    └─ Retry strategies
    ↓
Browser Console (Raw Logs)
    ├─ JavaScript errors
    ├─ Network requests
    ├─ Component lifecycle
    └─ Performance metrics
    ↓
Debug Inspector (NEW - To Be Built)
    ├─ View audit logs
    ├─ View state snapshots
    ├─ View crash reports
    ├─ Analyze performance
    └─ Replay state
```

---

## Layer 1: Audit Logger Inspection

**Purpose**: See what actions were taken and in what order

**Location**: `admin-ui/js/core/audit-logger.js`

**Available Data**:
```javascript
// Each log entry contains:
{
  timestamp: 1733425200000,
  sessionId: "session-1733425200000-abc123",
  action: "page_change",
  category: "navigation",
  level: "info",
  details: {
    from: "/",
    to: "/settings",
    user: "admin@example.com",
    timestamp: 1733425200000
  },
  redacted: false
}
```

**Inspection Query**:
```javascript
// Access from browser console:
window.__DSS_DEBUG.auditLogger.getLogs({
  action: 'api_call',
  level: 'error',
  timeRange: { start: Date.now() - 3600000, end: Date.now() }
})
```

**What to Look For**:
1. ✅ Sequence of actions leading to error
2. ✅ Permission checks that failed
3. ✅ API calls and their responses
4. ✅ State mutations and side effects
5. ✅ Error patterns (repeated errors)

---

## Layer 2: Workflow Persistence Inspection

**Purpose**: See what state the application was in at different points

**Location**: `admin-ui/js/core/workflow-persistence.js`

**Available Data**:
```javascript
// Each snapshot contains:
{
  id: "snapshot-1",
  timestamp: 1733425200000,
  label: "before-settings-change",
  state: {
    currentPage: "/settings",
    user: { id: "123", role: "TEAM_LEAD" },
    team: { id: "team-1", name: "Design" },
    figmaConnected: true,
    selectedComponent: "Button",
    settings: { theme: "dark", ... }
  }
}
```

**Inspection Query**:
```javascript
// From browser console:
window.__DSS_DEBUG.workflowPersistence.getSnapshots()
// Shows all saved snapshots

// Restore to specific point:
window.__DSS_DEBUG.workflowPersistence.restoreSnapshot("snapshot-id")
```

**What to Look For**:
1. ✅ State before error occurred
2. ✅ Configuration values at time of issue
3. ✅ User permissions and roles
4. ✅ Component selection states
5. ✅ Connection status (Figma, APIs, etc.)

---

## Layer 3: Error Recovery Inspection

**Purpose**: See what crashed and how to recover

**Location**: `admin-ui/js/core/error-recovery.js`

**Available Data**:
```javascript
// Crash detection:
{
  crashDetected: true,
  lastActivityTime: 1733425200000,
  timeSinceCrash: 45000, // ms
  errorCategory: "PERMISSION_DENIED",
  error: {
    type: "Error",
    message: "User does not have permission to access settings",
    stack: "..."
  },
  recoveryPoints: [
    { id: "rp-1", timestamp: 1733425100000, label: "before-api-call" },
    { id: "rp-2", timestamp: 1733425150000, label: "before-state-update" }
  ]
}
```

**Inspection Query**:
```javascript
// From browser console:
window.__DSS_DEBUG.errorRecovery.getCrashReport()
// Returns full analysis

// Recover to specific point:
window.__DSS_DEBUG.errorRecovery.recover("rp-2")
```

**What to Look For**:
1. ✅ Error type and message
2. ✅ When crash occurred
3. ✅ Available recovery points
4. ✅ Stack trace for root cause
5. ✅ Retry strategies

---

## Layer 4: Browser Console Analysis

**Purpose**: Raw JavaScript and network debugging

### JavaScript Errors
```javascript
// In browser console (F12):
// Look for:
// - Red error messages (uncaught exceptions)
// - Stack traces with file names and line numbers
// - Related warnings (yellow)

// Search by timestamp or error pattern:
// Watch Network tab for failed requests
```

### Network Requests
```
Network Tab (F12 → Network):
- Filter by: XHR/Fetch
- Look for: 4xx/5xx responses
- Check: Request headers, response payload
- Analyze: Response time and size
```

### Performance
```
Performance Tab (F12 → Performance):
- Record user interaction
- Look for: Long tasks (red)
- Check: JavaScript execution time
- Analyze: Paint times and layout shifts
```

---

## Layer 5: Debug Inspector (To Be Built)

**Purpose**: Unified debugging dashboard within DSS

**Proposed Interface**:
```
┌─────────────────────────────────────────────┐
│  DSS Debug Inspector (Ctrl+Alt+D)           │
├─────────────────────────────────────────────┤
│                                             │
│  📊 Dashboard                               │
│  ├─ Current State Snapshot                  │
│  ├─ Recent Audit Logs (last 20)             │
│  ├─ Last Error (if any)                     │
│  └─ Recovery Points Available               │
│                                             │
│  🔍 Audit Logs                              │
│  ├─ Filter by action/level/time             │
│  ├─ Search by keyword                       │
│  ├─ View full details                       │
│  └─ Export as JSON                          │
│                                             │
│  💾 Snapshots                               │
│  ├─ List all saved snapshots                │
│  ├─ Compare two snapshots                   │
│  ├─ Restore to snapshot                     │
│  └─ Download snapshot                       │
│                                             │
│  ⚠️ Errors                                  │
│  ├─ Show crash report                       │
│  ├─ View error timeline                     │
│  ├─ Analyze error patterns                  │
│  └─ Retry from recovery point               │
│                                             │
│  ⚡ Performance                             │
│  ├─ Page load metrics                       │
│  ├─ API response times                      │
│  ├─ Component render times                  │
│  └─ Memory usage                            │
│                                             │
│  🔐 Permissions                             │
│  ├─ Current user role                       │
│  ├─ Available actions                       │
│  ├─ Denied actions (reason)                 │
│  └─ Team permissions                        │
│                                             │
└─────────────────────────────────────────────┘
```

---

## Debugging Workflow: Step-by-Step

### Scenario 1: Dashboard Not Loading

1. **Check Browser Console** (F12)
   - Any JavaScript errors?
   - Any failed network requests?

2. **View Audit Logs**
   ```javascript
   window.__DSS_DEBUG.auditLogger.getStats()
   // Shows counts by category
   ```

3. **Check Last Snapshot**
   ```javascript
   const snapshots = window.__DSS_DEBUG.workflowPersistence.getSnapshots();
   const last = snapshots[snapshots.length - 1];
   console.log(last.state); // See state before crash
   ```

4. **Check Error Recovery**
   ```javascript
   window.__DSS_DEBUG.errorRecovery.getCrashReport()
   // Full analysis
   ```

5. **Attempt Recovery**
   ```javascript
   const report = window.__DSS_DEBUG.errorRecovery.getCrashReport();
   if (report.recoveryPoints.length > 0) {
     window.__DSS_DEBUG.errorRecovery.recover(
       report.recoveryPoints[report.recoveryPoints.length - 1].id
     );
   }
   ```

---

### Scenario 2: Permission Denied on Feature

1. **Check Current User Role**
   ```javascript
   const snapshot = window.__DSS_DEBUG.workflowPersistence.getSnapshots().pop();
   console.log(snapshot.state.user.role);
   ```

2. **View Permission Checks**
   ```javascript
   window.__DSS_DEBUG.auditLogger.getLogs({
     action: 'permission_check',
     details: { action: 'access_settings' }
   });
   ```

3. **See Denied Reasons**
   ```javascript
   window.__DSS_DEBUG.auditLogger.getLogs({
     level: 'warning',
     category: 'permission'
   });
   ```

4. **Compare Required vs Available**
   - Check route-guards.js for permission mappings
   - See what role is required vs what user has

---

### Scenario 3: API Call Failing

1. **Find API Call in Audit Log**
   ```javascript
   window.__DSS_DEBUG.auditLogger.getLogs({
     action: 'api_call',
     timeRange: { 
       start: Date.now() - 60000,  // Last minute
       end: Date.now()
     }
   });
   ```

2. **Check Network Tab**
   - Filter by /api/*
   - Look for failed requests (red)
   - Check response for error message

3. **View State Before Call**
   ```javascript
   // Find snapshot just before API error
   // Compare state to understand what was sent
   ```

4. **Check Retry Logic**
   ```javascript
   window.__DSS_DEBUG.errorRecovery.getLogs()
   // See if retries occurred and outcomes
   ```

---

## Methodology Principles

### 1. **Layered Investigation**
Start with highest-level (audit logs) and drill down (network, code)

### 2. **Timeline Analysis**
Look at events in sequence to understand causality

### 3. **State Snapshots**
Capture state before, during, and after issues

### 4. **Permission Auditing**
Check role-based access at each step

### 5. **Error Categorization**
Group errors by type to identify patterns

### 6. **Recovery Strategy**
Always attempt recovery from known good state

### 7. **Non-Invasive**
Debugging tools should not modify system state

---

## Browser DevTools Integration

### Keyboard Shortcuts
```
F12                  - Open DevTools
Ctrl+Shift+K         - Open Console
Ctrl+Alt+D           - Open DSS Debug Inspector (when implemented)
Ctrl+Shift+J         - Open Console in new window
Ctrl+Shift+I         - Open DevTools (alternate)
```

### Console Commands
```javascript
// Get debug namespace
window.__DSS_DEBUG

// Quick audit log view
window.__DSS_DEBUG.auditLogger.getLogs().slice(-10)

// Quick state view
window.__DSS_DEBUG.workflowPersistence.getSnapshots().pop().state

// Quick error view
window.__DSS_DEBUG.errorRecovery.getCrashReport()

// Export for analysis
JSON.stringify(window.__DSS_DEBUG.auditLogger.getLogs(), null, 2)
```

---

## Browser Log Reader Implementation

### What We Can Capture

```javascript
class BrowserLogReader {
  // Capture console logs
  captureConsoleLogs() {
    const logs = [];
    const originalLog = console.log;
    const originalError = console.error;
    
    console.log = (...args) => {
      logs.push({
        level: 'log',
        timestamp: Date.now(),
        message: args.join(' ')
      });
      originalLog(...args);
    };
    
    console.error = (...args) => {
      logs.push({
        level: 'error',
        timestamp: Date.now(),
        message: args.join(' '),
        stack: new Error().stack
      });
      originalError(...args);
    };
    
    return logs;
  }
  
  // Capture unhandled errors
  captureErrors() {
    const errors = [];
    window.addEventListener('error', (event) => {
      errors.push({
        type: 'error',
        message: event.message,
        file: event.filename,
        line: event.lineno,
        column: event.colno,
        stack: event.error?.stack
      });
    });
    
    window.addEventListener('unhandledrejection', (event) => {
      errors.push({
        type: 'unhandledRejection',
        reason: event.reason,
        stack: event.reason?.stack
      });
    });
    
    return errors;
  }
  
  // Export for analysis
  exportLogs() {
    return {
      consoleLogs: this.logs,
      errors: this.errors,
      timestamp: new Date().toISOString(),
      url: window.location.href
    };
  }
}
```

---

## Next Steps: Build Debug Inspector

### Phase 1: Console Commands (Week 1)
- [ ] Expose audit logger to window.__DSS_DEBUG
- [ ] Expose workflow persistence to window.__DSS_DEBUG
- [ ] Expose error recovery to window.__DSS_DEBUG
- [ ] Create helper functions for common queries

### Phase 2: Dashboard UI (Week 2)
- [ ] Create Debug Inspector component
- [ ] Build audit log viewer
- [ ] Build snapshot manager
- [ ] Build error analyzer

### Phase 3: Advanced Features (Week 3)
- [ ] State comparison (before/after)
- [ ] Timeline visualization
- [ ] Performance profiling
- [ ] Log export/import

---

## Usage Example

```javascript
// 1. User reports: "Dashboard is slow"

// 2. In browser console:
const logs = window.__DSS_DEBUG.auditLogger.getLogs({
  category: 'api_call'
});

// 3. Find slow requests:
logs.forEach(log => {
  if (log.details.duration > 1000) {
    console.log(`Slow API: ${log.details.endpoint} (${log.details.duration}ms)`);
  }
});

// 4. Check state at time of slowness:
const snapshots = window.__DSS_DEBUG.workflowPersistence.getSnapshots();
const snapshotAtTime = snapshots.find(s => 
  s.timestamp > slowLog.timestamp - 1000 && 
  s.timestamp < slowLog.timestamp
);

// 5. Analyze:
console.log({
  slowEndpoint: slowLog.details.endpoint,
  stateAtTime: snapshotAtTime.state,
  duration: slowLog.details.duration
});
```

---

## Benefits of This Approach

1. **Self-Contained**: No external tools needed
2. **Historical**: Full audit trail of everything
3. **Stateful**: Can see exact state at any point
4. **Safe**: No modifications to system
5. **Complete**: Captures all layers
6. **Fast**: Instant access to information

---

## Conclusion

DSS now has all the infrastructure needed for comprehensive self-debugging:
- ✅ Audit logger tracks all actions
- ✅ Workflow persistence captures state
- ✅ Error recovery analyzes crashes
- ✅ Route guards log permissions

Next step: Build Debug Inspector UI to visualize this data.