# ClaimCertificateView.vue Migration Documentation

**Migration Start**: 2025-07-08 12:24 UTC  
**Component**: ClaimCertificateView.vue  
**Priority**: High (Critical User Journey)  
**Location**: `src/views/ClaimCertificateView.vue`

## Pre-Migration Analysis

### 🔍 **Current State Assessment**

#### Database Operations
- **Legacy Pattern**: Uses `databaseUtil.retrieveSettingsForActiveAccount()` (line 36)
- **Legacy Pattern**: Uses `databaseUtil.mapQueryResultToValues()` (line 92)
- **Direct PlatformService**: Uses `PlatformServiceFactory.getInstance()` (line 88)
- **Raw SQL**: Uses `"SELECT * FROM contacts"` (line 89)

#### Notification Usage
- **Direct $notify Calls**: 1 instance found (line 75)
- **Notification Type**: danger
- **Message**: Error handling for claim loading failure

#### Template Complexity
- **Simple Template**: Basic canvas-based certificate display
- **Dynamic Content**: Canvas drawing with claim data
- **User Interactions**: Click to navigate to claim details

### 📊 **Migration Complexity Assessment**
- **Database Migration**: Medium (2 database operations)
- **SQL Abstraction**: Low (1 raw SQL query)
- **Notification Migration**: Low (1 notification)
- **Template Streamlining**: Low (simple template)

### 🎯 **Migration Goals**
1. Replace `databaseUtil` calls with PlatformServiceMixin methods
2. Abstract raw SQL with service methods
3. Extract notification message to constants
4. Replace `$notify()` call with helper method
5. Streamline template if needed

## Migration Plan

### **Phase 1: Database Migration**
```typescript
// Replace databaseUtil.retrieveSettingsForActiveAccount()
const settings = await this.$accountSettings();

// Replace PlatformServiceFactory.getInstance() + raw SQL
const allContacts = await this.$getAllContacts();

// Replace databaseUtil.mapQueryResultToValues()
// This will be handled by the service method above
```

### **Phase 2: Notification Migration**
```typescript
// Extract to constants
NOTIFY_CLAIM_CERTIFICATE_LOAD_ERROR

// Replace direct $notify call with helper method
this.notify.error(NOTIFY_CLAIM_CERTIFICATE_LOAD_ERROR.message, TIMEOUTS.LONG);
```

### **Phase 3: Template Streamlining**
```typescript
// Template is already simple, no complex logic to extract
// Canvas drawing logic is appropriately contained in methods
```

## Migration Implementation

### **Step 1: Add PlatformServiceMixin**
```typescript
import { PlatformServiceMixin } from "@/utils/PlatformServiceMixin";

@Component({
  mixins: [PlatformServiceMixin],
})
```

### **Step 2: Add Notification Infrastructure**
```typescript
import { createNotifyHelpers, TIMEOUTS } from "@/utils/notify";
import {
  NOTIFY_CLAIM_CERTIFICATE_LOAD_ERROR,
} from "@/constants/notifications";

// Add property
notify!: ReturnType<typeof createNotifyHelpers>;

// Initialize in created()
created() {
  this.notify = createNotifyHelpers(this.$notify);
}
```

### **Step 3: Replace Database Operations**
```typescript
// In created() method
const settings = await this.$accountSettings();

// In drawCanvas() method
const allContacts = await this.$getAllContacts();
```

### **Step 4: Replace Notification Call**
```typescript
// Replace error notification
this.notify.error(NOTIFY_CLAIM_CERTIFICATE_LOAD_ERROR.message, TIMEOUTS.LONG);
```

## Expected Outcomes

### **Technical Improvements**
- ✅ All database operations use PlatformServiceMixin
- ✅ No raw SQL queries in component
- ✅ All notifications use helper methods and constants
- ✅ Template remains clean and simple
- ✅ Consistent error handling patterns

### **Functional Preservation**
- ✅ Certificate generation and display preserved
- ✅ Canvas drawing functionality preserved
- ✅ Navigation to claim details preserved
- ✅ Error handling and user feedback preserved
- ✅ Contact information display preserved

### **Performance Improvements**
- ✅ Reduced database query complexity
- ✅ Standardized notification patterns
- ✅ Better error handling efficiency

## Testing Requirements

### **Functional Testing**
- [ ] Certificate generation works for different claim types
- [ ] Canvas drawing displays correctly
- [ ] Navigation to claim details works
- [ ] Error handling displays appropriate notifications
- [ ] Contact information displays correctly

### **Cross-Platform Testing**
- [ ] Web browser functionality
- [ ] Mobile app functionality (Capacitor)
- [ ] Desktop app functionality (Electron)
- [ ] PWA functionality

### **Error Scenario Testing**
- [ ] Network connectivity issues
- [ ] Invalid claim ID
- [ ] Missing claim data
- [ ] Canvas rendering failures
- [ ] Database connection issues

## Security Audit Checklist

### **SQL Injection Prevention**
- [ ] No raw SQL queries in component
- [ ] All database operations use parameterized queries
- [ ] Input validation for claim ID
- [ ] Proper error handling without information disclosure

### **Data Privacy**
- [ ] Claim data handled securely
- [ ] Contact information access controlled
- [ ] No sensitive data in error messages
- [ ] Certificate data properly sanitized

### **Input Validation**
- [ ] Claim ID validated and sanitized
- [ ] Canvas data validated
- [ ] URL parameters properly handled
- [ ] Image loading validated

## Migration Timeline

### **Estimated Duration**: 15-20 minutes
- **Phase 1 (Database)**: 5-7 minutes
- **Phase 2 (SQL)**: 2-3 minutes
- **Phase 3 (Notifications)**: 3-5 minutes
- **Phase 4 (Template)**: 2-3 minutes

### **Risk Assessment**
- **Functionality Risk**: Low (certificate display is well-contained)
- **Data Risk**: Low (read-only operations)
- **User Impact**: Low (feature is secondary to main workflow)

### **Dependencies**
- PlatformServiceMixin availability
- Notification constants in place
- Canvas drawing functionality preserved
- Claim API endpoints accessible

---

**Author**: Matthew Raymer  
**Date**: 2025-07-08  
**Purpose**: Document ClaimCertificateView.vue migration to Enhanced Triple Migration Pattern