@ -1,87 +1,192 @@
# Active Identity Migration & Upgrade (Merged)
# Active Identity Upgrade Plan
## Part 1: Database Migration Impact Analysis
**Author**: Matthew Raymer
**Date**: 2025-09-11
**Status**: 🎯 **PLANNING** - Database migration and active identity system upgrade
# Database Migration Impact Analysis
## Overview
Comprehensive upgrade to the active identity system, addressing architectural issues and implementing enhanced database constraints. Includes database migration enhancements and settings table cleanup based on team feedback.
## Implementation Status
**✅ COMPLETED**: Migration structure updated according to team member feedback
### Implemented Changes
1. ** ✅ Migration 003**: `003_add_hasBackedUpSeed_to_settings` - Adds `hasBackedUpSeed` column to settings (assumes master deployment)
2. ** ✅ Migration 004**: `004_active_identity_and_seed_backup` - Creates `active_identity` table with data migration
3. ** ✅ Migration Service**: Updated validation and schema detection logic for new migration structure
4. ** ✅ TypeScript**: Fixed type compatibility issues
### Migration Structure Now Follows Team Guidance
- **Migration 003** : `003_add_hasBackedUpSeed_to_settings` (assumes master code deployed)
- **Migration 004** : `004_active_identity_and_seed_backup` (creates active_identity table)
- **All migrations are additional** - no editing of previous migrations
- **Data migration logic** preserves existing `activeDid` from settings
- **iOS/Android compatibility** confirmed with SQLCipher 4.9.0 (SQLite 3.44.2)
## Educational Context
### Why This Upgrade Matters
The active identity system is **critical infrastructure** affecting every user interaction:
1. **Data Integrity** : Current `ON DELETE SET NULL` allows accidental deletion of active accounts
2. **Manual Maintenance** : Timestamps require manual updates, creating inconsistency opportunities
3. **Architectural Clarity** : Separating active identity from user settings improves maintainability
### What This Upgrade Achieves
- **Prevents Data Loss** : `ON DELETE RESTRICT` prevents accidental account deletion
- **Automatic Consistency** : Database triggers ensure timestamps are always current
- **Cleaner Architecture** : Complete separation of identity management from user preferences
- **Better Performance** : Optimized indexes for faster account selection
## Current State Analysis
### Existing Migration Structure
The current migration system has:
- **Migration 003** : `003_active_identity_and_seed_backup` - Creates `active_identity` table with basic structure
- **Migration 003** : `003_add_hasBackedUpSeed_to_settings` - Adds `hasBackedUpSeed` column to settings (already deployed in master)
- **Migration 004** : `004_active_identity_and_seed_backup` - Creates `active_identity` table with data migration
- **Foreign Key** : `ON DELETE SET NULL` constraint
- **Basic Indexing** : Single unique index on `id`
- **Data Migration** : Copies existing `activeDid` from settings to `active_identity` table
- **Bootstrapping** : Auto-selects first account if `activeDid` is null/empty
### Current Schema (Migration 003)
**Important**: All migrations are **additional** - no editing of previous migrations since master code has been deployed.
### Current Schema (Migration 004) - IMPLEMENTED
```sql
-- Migration 004: active_identity_and_seed_backup
-- Assumes master code deployed with migration 003
PRAGMA foreign_keys = ON;
CREATE UNIQUE INDEX IF NOT EXISTS idx_accounts_did_unique ON accounts(did);
CREATE TABLE IF NOT EXISTS active_identity (
id INTEGER PRIMARY KEY CHECK (id = 1),
activeDid TEXT DEFAULT NULL,
lastUpdated TEXT NOT NULL DEFAULT (datetime('now')),
FOREIGN KEY (activeDid) REFERENCES accounts(did) ON DELETE SET NULL
);
CREATE UNIQUE INDEX IF NOT EXISTS idx_active_identity_single_record ON active_identity(id);
-- Seed singleton row
INSERT INTO active_identity (id, activeDid, lastUpdated)
SELECT 1, NULL, datetime('now')
WHERE NOT EXISTS (SELECT 1 FROM active_identity WHERE id = 1);
-- MIGRATE EXISTING DATA: Copy activeDid from settings
UPDATE active_identity
SET activeDid = (SELECT activeDid FROM settings WHERE id = 1),
lastUpdated = datetime('now')
WHERE id = 1
AND EXISTS (SELECT 1 FROM settings WHERE id = 1 AND activeDid IS NOT NULL AND activeDid != '');
```
## Current Implementation Details
### PlatformServiceMixin.ts Implementation
The current `$getActiveIdentity()` method in `src/utils/PlatformServiceMixin.ts` :
```typescript
async $getActiveIdentity(): Promise< { activeDid: string }> {
try {
const result = await this.$dbQuery("SELECT activeDid FROM active_identity WHERE id = 1");
if (!result?.values?.length) {
logger.warn("[PlatformServiceMixin] Active identity table is empty - migration issue");
return { activeDid: "" };
}
const activeDid = result.values[0][0] as string | null;
// Handle null activeDid - auto-select first account
if (activeDid === null) {
const firstAccount = await this.$dbQuery("SELECT did FROM accounts ORDER BY dateCreated, did LIMIT 1");
if (firstAccount?.values?.length) {
const firstAccountDid = firstAccount.values[0][0] as string;
await this.$dbExec("UPDATE active_identity SET activeDid = ?, lastUpdated = datetime('now') WHERE id = 1", [firstAccountDid]);
return { activeDid: firstAccountDid };
}
logger.warn("[PlatformServiceMixin] No accounts available for auto-selection");
return { activeDid: "" };
}
// Validate activeDid exists in accounts
const accountExists = await this.$dbQuery("SELECT did FROM accounts WHERE did = ?", [activeDid]);
if (accountExists?.values?.length) {
return { activeDid };
}
// Clear corrupted activeDid and return empty
logger.warn("[PlatformServiceMixin] Active identity not found in accounts, clearing");
await this.$dbExec("UPDATE active_identity SET activeDid = NULL, lastUpdated = datetime('now') WHERE id = 1");
return { activeDid: "" };
} catch (error) {
logger.error("[PlatformServiceMixin] Error getting active identity:", error);
return { activeDid: "" };
}
}
```
### Key Implementation Notes
1. **Null Handling** : Auto-selects first account when `activeDid` is null
2. **Corruption Detection** : Clears invalid `activeDid` values
3. **Manual Timestamps** : Updates `lastUpdated` manually in code
4. **Error Handling** : Returns empty string on any error with appropriate logging
## Proposed Changes Impact
### 1. Foreign Key Constraint Change
**Current**: `ON DELETE SET NULL`
**Proposed**: `ON DELETE RESTRICT`
**Impact**:
**Current**: `ON DELETE SET NULL` → **Proposed** : `ON DELETE RESTRICT`
- **Data Safety** : Prevents accidental deletion of active account
- **Migration Rewrite** : Update existing migration 003
- **New Migration** : Add migration 005 to update constraint
### 2. Automatic Timestamp Updates
**Current**: Manual `lastUpdated` updates in code
**Proposed**: Database trigger for automatic updates
**Impact**:
**Current**: Manual `lastUpdated` updates → **Proposed** : Database trigger
- **Code Simplification** : Remove manual timestamp updates from `PlatformServiceMixin`
- **Consistency** : Ensures `lastUpdated` is always current
### 3. Enhanced Indexing
**Current**: Single unique index on `id`
**Proposed**: Additional index on `accounts(dateCreated, did)`
**Impact**:
**Current**: Single unique index on `id` → **Proposed** : Additional index on `accounts(dateCreated, did)`
- **Performance Improvement** : Faster account selection queries
- **Minimal Risk** : Additive change only
## Implementation Strategy
### Rewrite Migration 003
Since the `active_identity` table is new and we're in active development, we can simply rewrite the existing migration:
### Add Migration 005
Since the `active_identity` table already exists and is working, we can add a new migration to enhance it:
```sql
{
name: "003_active_identity_and_seed_backup",
name: "005_active_identity_enhancements ",
sql: `
-- Enable foreign key constraints for data integrity
PRAGMA foreign_keys = ON;
-- Add UNIQUE constraint to accounts.did for foreign key support
CREATE UNIQUE INDEX IF NOT EXISTS idx_accounts_did_unique ON accounts(did);
-- Create active_identity table with enhanced constraints
CREATE TABLE IF NOT EXISTS active_identity (
-- Recreate table with ON DELETE RESTRICT constraint
CREATE TABLE active_identity_new (
id INTEGER PRIMARY KEY CHECK (id = 1),
activeDid TEXT REFERENCES accounts(did) ON DELETE RESTRICT,
lastUpdated TEXT NOT NULL DEFAULT (datetime('now'))
);
-- Add performance indexes
CREATE UNIQUE INDEX IF NOT EXISTS idx_active_identity_single_record ON active_identity(id);
CREATE INDEX IF NOT EXISTS idx_accounts_pick ON accounts(dateCreated, did);
-- Copy existing data
INSERT INTO active_identity_new (id, activeDid, lastUpdated)
SELECT id, activeDid, lastUpdated FROM active_identity ;
-- Seed singleton row (only if not already exists)
INSERT INTO active_identity (id, activeDid, lastUpdated)
SELECT 1, NULL, datetime('now')
WHERE NOT EXISTS (SELECT 1 FROM active_identity WHERE id = 1);
-- Replace old table
DROP TABLE active_identity;
ALTER TABLE active_identity_new RENAME TO active_identity;
-- Add hasBackedUpSeed field to setting s
ALTER TABLE settings ADD COLUMN hasBackedUpSeed BOOLEAN DEFAULT FALSE ;
-- Add performance indexe s
CREATE INDEX IF NOT EXISTS idx_accounts_pick ON accounts(dateCreated, did) ;
-- Create automatic timestamp trigger
CREATE TRIGGER IF NOT EXISTS trg_active_identity_touch
@ -96,46 +201,59 @@ Since the `active_identity` table is new and we're in active development, we can
}
```
## Migration Service Updates Required
### Enhanced Validation Logic
**File**: `src/services/migrationService.ts`
The existing validation for migration 003 needs to be enhanced to check for:
**Migration 004 validation**:
- **Table existence** : `SELECT name FROM sqlite_master WHERE type='table' AND name='active_identity'`
- **Column structure** : `SELECT id, activeDid, lastUpdated FROM active_identity LIMIT 1`
- **Schema detection** : Uses `isSchemaAlreadyPresent()` to check if migration was already applied
**Migration 005 validation**:
- **Trigger existence** : `trg_active_identity_touch`
- **Performance index** : `idx_accounts_pick`
- **Foreign key constraint** : `ON DELETE RESTRICT`
- **Table recreation** : Verify table was successfully recreated
### Enhanced Schema Detection
**File**: `src/services/migrationService.ts`
The existing schema detection for migration 003 needs to be enhanced to verify:
- **Table structure** : Enhanced constraints
**Migration 004 verification**:
- **Table structure** : Checks `active_identity` table exists and has correct columns
- **Data integrity** : Validates that the table can be queried successfully
- **Migration tracking** : Uses `isSchemaAlreadyPresent()` to avoid re-applying migrations
**Migration 005 verification**:
- **Table structure** : Enhanced constraints with `ON DELETE RESTRICT`
- **Trigger presence** : Automatic timestamp updates
- **Index presence** : Performance optimization
- **Data integrity** : Existing data was preserved during table recreation
## Risk Assessment
### Low Risk Changes
- **Performance Index** : Additive only, no data changes
- **Trigger Creation** : Additive only, improves consistency
- **Migration Rewrite** : Clean implementation, no additional migrations
- **New Migration** : Clean implementation, no modification of existing migrations
### Medium Risk Changes
- **Foreign Key Change** : `ON DELETE RESTRICT` is more restrictive
- **Table Recreation** : Requires careful data preservation
- **Validation Updates** : Need to test enhanced validation logic
### Mitigation Strategies
1. **Comprehensive Testing** : Test migration on various database states
2. **Development Phase** : Since we're in active development, risk is minimal
3. **Clean Implementation** : Single migration with all enhancements
2. **Data Preservation** : Verify existing data is copied correctly
3. **Clean Implementation** : New migration with all enhancements
4. **Validation Coverage** : Enhanced validation ensures correctness
5. **Rollback Plan** : Can drop new table and restore original if needed
## Implementation Timeline
### Phase 1: Migration Rewrite
- [ ] Update migration 003 with enhanced constraints
### Phase 1: Migration Enhancement
- [ ] Add migration 005 with enhanced constraints
- [ ] Add enhanced validation logic
- [ ] Add enhanced schema detection logic
- [ ] Test migration on clean database
@ -145,6 +263,7 @@ The existing schema detection for migration 003 needs to be enhanced to verify:
- [ ] Validate foreign key constraints work correctly
- [ ] Test trigger functionality
- [ ] Test performance improvements
- [ ] Verify data preservation during table recreation
### Phase 3: Deployment
- [ ] Deploy enhanced migration to development
@ -152,359 +271,120 @@ The existing schema detection for migration 003 needs to be enhanced to verify:
- [ ] Deploy to production
- [ ] Monitor for any issues
## Code Changes Required
### Files to Modify
1. ** `src/db-sql/migration.ts` ** - Update migration 003 with enhanced constraints
2. ** `src/services/migrationService.ts` ** - Add enhanced validation and detection logic
3. ** `src/utils/PlatformServiceMixin.ts` ** - Remove manual timestamp updates
### Estimated Impact
- **Migration File** : ~20 lines modified (enhanced constraints)
- **Migration Service** : ~50 lines added (enhanced validation)
- **PlatformServiceMixin** : ~20 lines removed (manual timestamps)
- **Total** : ~50 lines changed
## Conclusion
The proposed database changes are **feasible and beneficial** with a much simpler implementation:
**Benefits**:
- Improved data integrity with `ON DELETE RESTRICT`
- Automatic timestamp consistency
- Better query performance
- Cleaner code (no manual timestamp updates)
- **Simpler implementation** - just rewrite migration 003
### Phase 4: Settings Table Cleanup
- [ ] Create migration 006 to clean up settings table
- [ ] Remove orphaned settings records (accountDid is null)
- [ ] Clear any remaining activeDid values in settings
- [ ] Consider removing activeDid column entirely (future task)
**Risks**:
- More restrictive foreign key constraints
- Enhanced validation logic needs testing
## Settings Table Cleanup Strategy
**Recommendation**: Proceed with **rewriting migration 003** as it provides the cleanest path forward with minimal complexity and maximum benefit.
### Current State Analysis
The settings table currently contains:
- **Legacy activeDid column** : Still present from original design
- **Orphaned records** : Settings with `accountDid = null` that may be obsolete
- **Redundant data** : Some settings may have been copied unnecessarily
Based on team feedback, the cleanup should include:
---
## Part 2: Active Identity System Upgrade Plan
# Active Identity System Upgrade Plan
## Overview
This document outlines a comprehensive upgrade to the `$getActiveIdentity` system
to address current ambiguities, race conditions, and improve overall robustness.
## Current Issues Identified
### 1. **Ambiguous Return States**
- Current: Returns `{ activeDid: string }` where empty string conflates multiple states
- Problem: Cannot distinguish between "no accounts", "migration gap", "corruption cleared"
- Impact: UI cannot provide appropriate user guidance
### 2. **Race Conditions (TOCTOU)**
1. **Remove orphaned settings records** :
```sql
DELETE FROM settings WHERE accountDid IS NULL;
```
- Current: Read → Write → Re-read across multiple statements
- Problem: No transactional guard, potential for inconsistent state
- Impact: Rare but possible data corruption scenarios
2. **Clear any remaining activeDid values** :
```sql
UPDATE settings SET activeDid = NULL;
```
### 3. **No Single-Row Enforcement**
3. **Future consideration** : Remove the activeDid column entirely from settings table
- Current: App logic assumes `id=1` singleton, but DB doesn't enforce
- Problem: Multiple rows could theoretically exist
- Impact: Unpredictable behavior
### 4. **Deletion Hazards**
- Current: No protection against deleting active account
- Problem: App "discovers" corruption after the fact
- Impact: Poor user experience, potential data loss
### 5. **Inconsistent Updates**
- Current: `lastUpdated` only set on some code paths
- Problem: Audit trail incomplete
- Impact: Debugging difficulties
## Proposed Solution Architecture
### Database Schema Changes
### Migration 006: Settings Cleanup
```sql
-- Enhanced active_identity table with constraints
CREATE TABLE IF NOT EXISTS active_identity (
id INTEGER PRIMARY KEY CHECK (id = 1),
activeDid TEXT REFERENCES accounts(did) ON DELETE RESTRICT,
lastUpdated TEXT NOT NULL DEFAULT (datetime('now'))
);
-- Automatic timestamp updates
CREATE TRIGGER IF NOT EXISTS trg_active_identity_touch
AFTER UPDATE ON active_identity
FOR EACH ROW
BEGIN
UPDATE active_identity
SET lastUpdated = datetime('now')
WHERE id = 1;
END;
-- Deterministic account selection index
CREATE INDEX IF NOT EXISTS idx_accounts_pick
ON accounts(dateCreated, did);
-- Seed singleton row
INSERT INTO active_identity (id, activeDid)
SELECT 1, NULL
WHERE NOT EXISTS (SELECT 1 FROM active_identity WHERE id = 1);
```
{
name: "006_settings_cleanup",
sql: `
-- Remove orphaned settings records (accountDid is null)
DELETE FROM settings WHERE accountDid IS NULL;
### Type System Enhancement
-- Clear any remaining activeDid values in settings
UPDATE settings SET activeDid = NULL;
```typescript
type ActiveIdentity =
| { state: 'ok'; activeDid: string }
| { state: 'unset'; activeDid: '' } // row exists, but no active set yet
| { state: 'auto-selected'; activeDid: string } // we selected & saved first account
| { state: 'empty-accounts'; activeDid: '' } // there are no accounts to select
| { state: 'cleared-corrupt'; activeDid: '' } // DB had a non-existent DID; cleared
| { state: 'error'; activeDid: '' };
-- Optional: Consider removing the activeDid column entirely
-- ALTER TABLE settings DROP COLUMN activeDid;
`
}
```
## Migration Strategy
### Phase 1: Database Schema Migration
**Files to modify:**
- `src/db-sql/migration.ts` - Add new migration
- `src/services/migrationService.ts` - Update validation logic
**Migration Steps:**
1. Add foreign key constraint to `active_identity.activeDid`
2. Add `ON DELETE RESTRICT` constraint
3. Create timestamp trigger
4. Add deterministic index
5. Ensure singleton row exists
**Risk Assessment:** LOW
- Additive changes only
- Existing data preserved
- Rollback possible
### Phase 2: Core Method Refactor
**Files to modify:**
- `src/utils/PlatformServiceMixin.ts` - Replace `$getActiveIdentity`
- `src/interfaces/` - Add new type definitions
**Changes:**
1. Implement transactional `$getActiveIdentity` with explicit states
2. Add `$setActiveIdentity` method
3. Add `$deleteAccountSafely` method
4. Update return type to `ActiveIdentity`
**Risk Assessment:** MEDIUM
- Breaking change to return type
- Requires coordinated updates across codebase
- Extensive testing needed
### Phase 3: Consumer Updates
**Files to modify:**
- All Vue components using `$getActiveIdentity`
- Router guards
- Service layer components
**Changes:**
1. Update all callers to handle new return type
2. Implement state-specific UI logic
3. Add appropriate user messaging
**Risk Assessment:** HIGH
- Wide impact across codebase
- UI/UX changes required
- Extensive testing needed
## Implementation Phases
### Phase 1: Database Foundation
- [ ] Create migration for schema changes
- [ ] Test migration on development databases
- [ ] Validate foreign key constraints work correctly
- [ ] Test rollback scenarios
### Phase 2: Core Implementation
- [ ] Implement new `$getActiveIdentity` method
- [ ] Add `$setActiveIdentity` method
- [ ] Add `$deleteAccountSafely` method
- [ ] Create comprehensive unit tests
- [ ] Test transactional behavior
### Phase 3: Consumer Updates
### Benefits of Settings Cleanup
- **Reduced confusion** : Eliminates dual-purpose columns
- **Cleaner architecture** : Settings table focuses only on user preferences
- **Reduced storage** : Removes unnecessary data
- **Clearer separation** : Active identity vs. user settings are distinct concerns
- [ ] Audit all current usage of `$getActiveIdentity`
- [ ] Create migration guide for components
- [ ] Update critical path components first
- [ ] Implement state-specific UI logic
### Risk Assessment: LOW
- **Data safety** : Only removes orphaned/obsolete records
- **Backward compatibility** : Maintains existing column structure
- **Rollback** : Easy to restore if needed
- **Testing** : Can be validated with existing data
### Phase 4: Testing & Rollout
- [ ] End-to-end testing
- [ ] Performance testing
- [ ] User acceptance testing
- [ ] Gradual rollout with feature flags
## Backward Compatibility Strategy
### Gradual Migration Approach
The gradual migration strategy allows us to implement the new active identity system without breaking existing functionality. This approach minimizes risk and provides a clear path for incremental updates.
#### Phase 1: Dual Method Implementation
- **Keep existing method** : Leave current `$getActiveIdentity` unchanged (no renaming)
- **Add new method** : Implement `$getActiveIdentityV2` with new return type and logic
- **Feature flag control** : Use `FEATURE_FLAG_ACTIVE_IDENTITY_V2` to control which method is used
- **Default to existing** : Start with existing method enabled to ensure no breaking changes
#### Phase 2: Component Migration
- **Audit usage** : Identify all components using `$getActiveIdentity`
- **Create migration guide** : Document the changes needed for each component type
- **Update incrementally** : Migrate components to use `$getActiveIdentityV2` one
by one, starting with non-critical paths
- **Test each migration** : Validate each component works with the new method
before proceeding
#### Phase 3: Feature Flag Rollout
- **Enable for migrated components** : Switch feature flag for components that have been updated
- **Monitor performance** : Track any performance or behavior changes
- **Gradual enablement** : Enable the new method for more components as they're migrated
- **Fallback capability** : Keep legacy method available for rollback if issues arise
#### Phase 4: Legacy Cleanup
- **Remove feature flag** : Once all components are migrated, remove the feature flag
- **Replace existing method** : Replace the implementation of `$getActiveIdentity` with the V2 logic
- **Remove V2 method** : Delete `$getActiveIdentityV2` and related code
- **Update documentation** : Remove references to the V2 method
- **Final validation** : Ensure no remaining references to V2 method
#### Benefits of This Approach
- **Zero downtime** : No breaking changes during migration
- **Incremental testing** : Each component can be tested individually
- **Easy rollback** : Can revert individual components or entire system if needed
- **Clear progress tracking** : Easy to see which components still need migration
- **Reduced risk** : Issues are isolated to individual components rather than system-wide
## Risk Mitigation
### Database Risks
- **Foreign Key Violations** : Test with existing data
- **Migration Failures** : Comprehensive rollback plan
- **Performance Impact** : Monitor query performance
### Code Risks
- **Breaking Changes** : Extensive testing, gradual rollout
- **Race Conditions** : Comprehensive unit tests
- **State Management** : Clear documentation, examples
### User Experience Risks
- **Confusing States** : Clear UI messaging
- **Data Loss** : Backup strategies, validation
- **Performance** : Monitor response times
## Success Metrics
### Technical Metrics
- Zero race condition incidents
- 100% test coverage for new methods
- < 50ms average response time
- Zero data corruption incidents
### User Experience Metrics
- Clear state-specific messaging
- Reduced user confusion
- Improved onboarding flow
- Faster account switching
## Rollback Plan
### Database Rollback
1. Remove foreign key constraints
2. Remove triggers
3. Remove indexes
4. Restore previous migration state
### Code Rollback
## Code Changes Required
1. Revert to previous `$getActiveIdentity` implementation
2. Remove new type definitions
3. Restore previous component logic
4. Remove new methods
### Files to Modify
1. ** `src/db-sql/migration.ts` ** - Add migration 005 with enhanced constraints
2. ** `src/db-sql/migration.ts` ** - Add migration 006 for settings cleanup
3. ** `src/services/migrationService.ts` ** - Add enhanced validation and detection logic
4. ** `src/utils/PlatformServiceMixin.ts` ** - Remove manual timestamp updates
## Testing Strategy
### Estimated Impact
- **Migration File** : ~25 lines added (migration 005) + ~15 lines added (migration 006)
- **Migration Service** : ~50 lines added (enhanced validation)
- **PlatformServiceMixin** : ~20 lines removed (manual timestamps)
- **Total** : ~90 lines changed
### Unit Tests
## Conclusion
- Test all state transitions
- Test transactional behavior
- Test error conditions
- Test edge cases
**✅ IMPLEMENTATION COMPLETE**: The active identity upgrade plan has been successfully applied to the current project.
### Integration Tests
### Successfully Implemented
- Test with real database
- Test migration scenarios
- Test concurrent access
- Test foreign key constraints
**✅ Migration Structure Updated**:
- **Migration 003** : `003_add_hasBackedUpSeed_to_settings` (assumes master deployment)
- **Migration 004** : `004_active_identity_and_seed_backup` (creates active_identity table)
- **All migrations are additional** - follows team member feedback exactly
### End-to-End Tests
**✅ Technical Implementation**:
- **Data Migration** : Preserves existing `activeDid` from settings table
- **Foreign Key Constraints** : `ON DELETE SET NULL` for data safety
- **iOS/Android Compatibility** : Confirmed with SQLCipher 4.9.0 (SQLite 3.44.2)
- **Migration Service** : Updated validation and schema detection logic
- Test complete user flows
- Test account creation/deletion
- Test active identity switching
- Test error recovery
**✅ Code Quality**:
- **TypeScript** : All type errors resolved
- **Linting** : No linting errors
- **Team Guidance** : Follows "additional migrations only" requirement
## Documentation Requirements
### Next Steps (Future Enhancements)
### Developer Documentation
The foundation is now in place for future enhancements:
- Migration guide for components
- API documentation for new methods
- Type definitions and examples
- Best practices guide
1. **Migration 005** : `005_active_identity_enhancements` (ON DELETE RESTRICT, triggers, indexes)
2. **Migration 006** : `006_settings_cleanup` (remove orphaned settings, clear legacy activeDid)
3. **Code Simplification** : Remove manual timestamp updates from PlatformServiceMixin
### User Documentation
### Current Status
- State-specific UI messaging
- Error message guidelines
- Onboarding flow updates
- Troubleshooting guide
**Migration 004 is ready for deployment** and will:
- ✅ Create `active_identity` table with proper constraints
- ✅ Migrate existing `activeDid` data from settings
- ✅ Work identically on iOS and Android
- ✅ Follow team member feedback for additional migrations only
## Conclusion
**Key Point**: All migrations are **additional** - no editing of previous migrations since master code has been deployed. This ensures compatibility and proper testing.
This upgrade addresses critical architectural issues while providing a clear path
forward. The phased approach minimizes risk while ensuring thorough testing and
validation at each step.
---
**Recommendation:** Proceed with Phase 1 (Database Schema) immediately, as it
provides immediate benefits with minimal risk. The gradual migration approach allows
for incremental updates without breaking existing functionality.
**Status**: Ready for team review and implementation approval
**Last Updated**: 2025-09-11
**Next Review**: After team feedback and approval
Matthew Raymer
5 days ago