chore: update migration documents and move to new home

This commit is contained in:
Matt Raymer
2025-05-25 22:50:32 -04:00
parent dda1e763d1
commit fe1e198992
5 changed files with 320 additions and 81 deletions

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# Dexie to absurd-sql Mapping Guide
## Schema Mapping
### Current Dexie Schema
```typescript
// Current Dexie schema
const db = new Dexie('TimeSafariDB');
db.version(1).stores({
accounts: 'did, publicKeyHex, createdAt, updatedAt',
settings: 'key, value, updatedAt',
contacts: 'id, did, name, createdAt, updatedAt'
});
```
### New SQLite Schema
```sql
-- New SQLite schema
CREATE TABLE accounts (
did TEXT PRIMARY KEY,
public_key_hex TEXT NOT NULL,
created_at INTEGER NOT NULL,
updated_at INTEGER NOT NULL
);
CREATE TABLE settings (
key TEXT PRIMARY KEY,
value TEXT NOT NULL,
updated_at INTEGER NOT NULL
);
CREATE TABLE contacts (
id TEXT PRIMARY KEY,
did TEXT NOT NULL,
name TEXT,
created_at INTEGER NOT NULL,
updated_at INTEGER NOT NULL,
FOREIGN KEY (did) REFERENCES accounts(did)
);
-- Indexes for performance
CREATE INDEX idx_accounts_created_at ON accounts(created_at);
CREATE INDEX idx_contacts_did ON contacts(did);
CREATE INDEX idx_settings_updated_at ON settings(updated_at);
```
## Query Mapping
### 1. Account Operations
#### Get Account by DID
```typescript
// Dexie
const account = await db.accounts.get(did);
// absurd-sql
const result = await db.exec(`
SELECT * FROM accounts WHERE did = ?
`, [did]);
const account = result[0]?.values[0];
```
#### Get All Accounts
```typescript
// Dexie
const accounts = await db.accounts.toArray();
// absurd-sql
const result = await db.exec(`
SELECT * FROM accounts ORDER BY created_at DESC
`);
const accounts = result[0]?.values || [];
```
#### Add Account
```typescript
// Dexie
await db.accounts.add({
did,
publicKeyHex,
createdAt: Date.now(),
updatedAt: Date.now()
});
// absurd-sql
await db.run(`
INSERT INTO accounts (did, public_key_hex, created_at, updated_at)
VALUES (?, ?, ?, ?)
`, [did, publicKeyHex, Date.now(), Date.now()]);
```
#### Update Account
```typescript
// Dexie
await db.accounts.update(did, {
publicKeyHex,
updatedAt: Date.now()
});
// absurd-sql
await db.run(`
UPDATE accounts
SET public_key_hex = ?, updated_at = ?
WHERE did = ?
`, [publicKeyHex, Date.now(), did]);
```
### 2. Settings Operations
#### Get Setting
```typescript
// Dexie
const setting = await db.settings.get(key);
// absurd-sql
const result = await db.exec(`
SELECT * FROM settings WHERE key = ?
`, [key]);
const setting = result[0]?.values[0];
```
#### Set Setting
```typescript
// Dexie
await db.settings.put({
key,
value,
updatedAt: Date.now()
});
// absurd-sql
await db.run(`
INSERT INTO settings (key, value, updated_at)
VALUES (?, ?, ?)
ON CONFLICT(key) DO UPDATE SET
value = excluded.value,
updated_at = excluded.updated_at
`, [key, value, Date.now()]);
```
### 3. Contact Operations
#### Get Contacts by Account
```typescript
// Dexie
const contacts = await db.contacts
.where('did')
.equals(accountDid)
.toArray();
// absurd-sql
const result = await db.exec(`
SELECT * FROM contacts
WHERE did = ?
ORDER BY created_at DESC
`, [accountDid]);
const contacts = result[0]?.values || [];
```
#### Add Contact
```typescript
// Dexie
await db.contacts.add({
id: generateId(),
did: accountDid,
name,
createdAt: Date.now(),
updatedAt: Date.now()
});
// absurd-sql
await db.run(`
INSERT INTO contacts (id, did, name, created_at, updated_at)
VALUES (?, ?, ?, ?, ?)
`, [generateId(), accountDid, name, Date.now(), Date.now()]);
```
## Transaction Mapping
### Batch Operations
```typescript
// Dexie
await db.transaction('rw', [db.accounts, db.contacts], async () => {
await db.accounts.add(account);
await db.contacts.bulkAdd(contacts);
});
// absurd-sql
await db.exec('BEGIN TRANSACTION;');
try {
await db.run(`
INSERT INTO accounts (did, public_key_hex, created_at, updated_at)
VALUES (?, ?, ?, ?)
`, [account.did, account.publicKeyHex, account.createdAt, account.updatedAt]);
for (const contact of contacts) {
await db.run(`
INSERT INTO contacts (id, did, name, created_at, updated_at)
VALUES (?, ?, ?, ?, ?)
`, [contact.id, contact.did, contact.name, contact.createdAt, contact.updatedAt]);
}
await db.exec('COMMIT;');
} catch (error) {
await db.exec('ROLLBACK;');
throw error;
}
```
## Migration Helper Functions
### 1. Data Export (Dexie to JSON)
```typescript
async function exportDexieData(): Promise<MigrationData> {
const db = new Dexie('TimeSafariDB');
return {
accounts: await db.accounts.toArray(),
settings: await db.settings.toArray(),
contacts: await db.contacts.toArray(),
metadata: {
version: '1.0.0',
timestamp: Date.now(),
dexieVersion: Dexie.version
}
};
}
```
### 2. Data Import (JSON to absurd-sql)
```typescript
async function importToAbsurdSql(data: MigrationData): Promise<void> {
await db.exec('BEGIN TRANSACTION;');
try {
// Import accounts
for (const account of data.accounts) {
await db.run(`
INSERT INTO accounts (did, public_key_hex, created_at, updated_at)
VALUES (?, ?, ?, ?)
`, [account.did, account.publicKeyHex, account.createdAt, account.updatedAt]);
}
// Import settings
for (const setting of data.settings) {
await db.run(`
INSERT INTO settings (key, value, updated_at)
VALUES (?, ?, ?)
`, [setting.key, setting.value, setting.updatedAt]);
}
// Import contacts
for (const contact of data.contacts) {
await db.run(`
INSERT INTO contacts (id, did, name, created_at, updated_at)
VALUES (?, ?, ?, ?, ?)
`, [contact.id, contact.did, contact.name, contact.createdAt, contact.updatedAt]);
}
await db.exec('COMMIT;');
} catch (error) {
await db.exec('ROLLBACK;');
throw error;
}
}
```
### 3. Verification
```typescript
async function verifyMigration(dexieData: MigrationData): Promise<boolean> {
// Verify account count
const accountResult = await db.exec('SELECT COUNT(*) as count FROM accounts');
const accountCount = accountResult[0].values[0][0];
if (accountCount !== dexieData.accounts.length) {
return false;
}
// Verify settings count
const settingsResult = await db.exec('SELECT COUNT(*) as count FROM settings');
const settingsCount = settingsResult[0].values[0][0];
if (settingsCount !== dexieData.settings.length) {
return false;
}
// Verify contacts count
const contactsResult = await db.exec('SELECT COUNT(*) as count FROM contacts');
const contactsCount = contactsResult[0].values[0][0];
if (contactsCount !== dexieData.contacts.length) {
return false;
}
// Verify data integrity
for (const account of dexieData.accounts) {
const result = await db.exec(
'SELECT * FROM accounts WHERE did = ?',
[account.did]
);
const migratedAccount = result[0]?.values[0];
if (!migratedAccount ||
migratedAccount[1] !== account.publicKeyHex) { // public_key_hex is second column
return false;
}
}
return true;
}
```
## Performance Considerations
### 1. Indexing
- Dexie automatically creates indexes based on the schema
- absurd-sql requires explicit index creation
- Added indexes for frequently queried fields
- Use `PRAGMA journal_mode=MEMORY;` for better performance
### 2. Batch Operations
- Dexie has built-in bulk operations
- absurd-sql uses transactions for batch operations
- Consider chunking large datasets
- Use prepared statements for repeated queries
### 3. Query Optimization
- Dexie uses IndexedDB's native indexing
- absurd-sql requires explicit query optimization
- Use prepared statements for repeated queries
- Consider using `PRAGMA synchronous=NORMAL;` for better performance
## Error Handling
### 1. Common Errors
```typescript
// Dexie errors
try {
await db.accounts.add(account);
} catch (error) {
if (error instanceof Dexie.ConstraintError) {
// Handle duplicate key
}
}
// absurd-sql errors
try {
await db.run(`
INSERT INTO accounts (did, public_key_hex, created_at, updated_at)
VALUES (?, ?, ?, ?)
`, [account.did, account.publicKeyHex, account.createdAt, account.updatedAt]);
} catch (error) {
if (error.message.includes('UNIQUE constraint failed')) {
// Handle duplicate key
}
}
```
### 2. Transaction Recovery
```typescript
// Dexie transaction
try {
await db.transaction('rw', db.accounts, async () => {
// Operations
});
} catch (error) {
// Dexie automatically rolls back
}
// absurd-sql transaction
try {
await db.exec('BEGIN TRANSACTION;');
// Operations
await db.exec('COMMIT;');
} catch (error) {
await db.exec('ROLLBACK;');
throw error;
}
```
## Migration Strategy
1. **Preparation**
- Export all Dexie data
- Verify data integrity
- Create SQLite schema
- Setup indexes
2. **Migration**
- Import data in transactions
- Verify each batch
- Handle errors gracefully
- Maintain backup
3. **Verification**
- Compare record counts
- Verify data integrity
- Test common queries
- Validate relationships
4. **Cleanup**
- Remove Dexie database
- Clear IndexedDB storage
- Update application code
- Remove old dependencies

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# Migration Guide: Dexie to absurd-sql
## Overview
This document outlines the migration process from Dexie.js to absurd-sql for the TimeSafari app's storage implementation. The migration aims to provide a consistent SQLite-based storage solution across all platforms while maintaining data integrity and ensuring a smooth transition for users.
## Migration Goals
1. **Data Integrity**
- Preserve all existing data
- Maintain data relationships
- Ensure data consistency
2. **Performance**
- Improve query performance
- Reduce storage overhead
- Optimize for platform-specific features
3. **Security**
- Maintain or improve encryption
- Preserve access controls
- Enhance data protection
4. **User Experience**
- Zero data loss
- Minimal downtime
- Automatic migration where possible
## Prerequisites
1. **Backup Requirements**
```typescript
interface MigrationBackup {
timestamp: number;
accounts: Account[];
settings: Setting[];
contacts: Contact[];
metadata: {
version: string;
platform: string;
dexieVersion: string;
};
}
```
2. **Dependencies**
```json
{
"@jlongster/sql.js": "^1.8.0",
"absurd-sql": "^1.8.0"
}
```
3. **Storage Requirements**
- Sufficient IndexedDB quota
- Available disk space for SQLite
- Backup storage space
4. **Platform Support**
- Web: Modern browser with IndexedDB support
- iOS: iOS 13+ with SQLite support
- Android: Android 5+ with SQLite support
- Electron: Latest version with SQLite support
## Migration Process
### 1. Preparation
```typescript
// src/services/storage/migration/MigrationService.ts
import initSqlJs from '@jlongster/sql.js';
import { SQLiteFS } from 'absurd-sql';
import IndexedDBBackend from 'absurd-sql/dist/indexeddb-backend';
export class MigrationService {
private static instance: MigrationService;
private backup: MigrationBackup | null = null;
private sql: any = null;
private db: any = null;
async prepare(): Promise<void> {
try {
// 1. Check prerequisites
await this.checkPrerequisites();
// 2. Create backup
this.backup = await this.createBackup();
// 3. Verify backup integrity
await this.verifyBackup();
// 4. Initialize absurd-sql
await this.initializeAbsurdSql();
} catch (error) {
throw new StorageError(
'Migration preparation failed',
StorageErrorCodes.MIGRATION_FAILED,
error
);
}
}
private async initializeAbsurdSql(): Promise<void> {
// Initialize SQL.js
this.sql = await initSqlJs({
locateFile: (file: string) => {
return new URL(`/node_modules/@jlongster/sql.js/dist/${file}`, import.meta.url).href;
}
});
// Setup SQLiteFS with IndexedDB backend
const sqlFS = new SQLiteFS(this.sql.FS, new IndexedDBBackend());
this.sql.register_for_idb(sqlFS);
// Create and mount filesystem
this.sql.FS.mkdir('/sql');
this.sql.FS.mount(sqlFS, {}, '/sql');
// Open database
const path = '/sql/db.sqlite';
if (typeof SharedArrayBuffer === 'undefined') {
let stream = this.sql.FS.open(path, 'a+');
await stream.node.contents.readIfFallback();
this.sql.FS.close(stream);
}
this.db = new this.sql.Database(path, { filename: true });
if (!this.db) {
throw new StorageError(
'Database initialization failed',
StorageErrorCodes.INITIALIZATION_FAILED
);
}
// Configure database
await this.db.exec(`PRAGMA journal_mode=MEMORY;`);
}
private async checkPrerequisites(): Promise<void> {
// Check IndexedDB availability
if (!window.indexedDB) {
throw new StorageError(
'IndexedDB not available',
StorageErrorCodes.INITIALIZATION_FAILED
);
}
// Check storage quota
const quota = await navigator.storage.estimate();
if (quota.quota && quota.usage && quota.usage > quota.quota * 0.9) {
throw new StorageError(
'Insufficient storage space',
StorageErrorCodes.STORAGE_FULL
);
}
// Check platform support
const capabilities = await PlatformDetection.getCapabilities();
if (!capabilities.hasFileSystem) {
throw new StorageError(
'Platform does not support required features',
StorageErrorCodes.INITIALIZATION_FAILED
);
}
}
private async createBackup(): Promise<MigrationBackup> {
const dexieDB = new Dexie('TimeSafariDB');
return {
timestamp: Date.now(),
accounts: await dexieDB.accounts.toArray(),
settings: await dexieDB.settings.toArray(),
contacts: await dexieDB.contacts.toArray(),
metadata: {
version: '1.0.0',
platform: await PlatformDetection.getPlatform(),
dexieVersion: Dexie.version
}
};
}
}
```
### 2. Data Migration
```typescript
// src/services/storage/migration/DataMigration.ts
export class DataMigration {
async migrate(backup: MigrationBackup): Promise<void> {
try {
// 1. Create new database schema
await this.createSchema();
// 2. Migrate accounts
await this.migrateAccounts(backup.accounts);
// 3. Migrate settings
await this.migrateSettings(backup.settings);
// 4. Migrate contacts
await this.migrateContacts(backup.contacts);
// 5. Verify migration
await this.verifyMigration(backup);
} catch (error) {
// 6. Handle failure
await this.handleMigrationFailure(error, backup);
}
}
private async migrateAccounts(accounts: Account[]): Promise<void> {
// Use transaction for atomicity
await this.db.exec('BEGIN TRANSACTION;');
try {
for (const account of accounts) {
await this.db.run(`
INSERT INTO accounts (did, public_key_hex, created_at, updated_at)
VALUES (?, ?, ?, ?)
`, [
account.did,
account.publicKeyHex,
account.createdAt,
account.updatedAt
]);
}
await this.db.exec('COMMIT;');
} catch (error) {
await this.db.exec('ROLLBACK;');
throw error;
}
}
private async verifyMigration(backup: MigrationBackup): Promise<void> {
// Verify account count
const result = await this.db.exec('SELECT COUNT(*) as count FROM accounts');
const accountCount = result[0].values[0][0];
if (accountCount !== backup.accounts.length) {
throw new StorageError(
'Account count mismatch',
StorageErrorCodes.VERIFICATION_FAILED
);
}
// Verify data integrity
await this.verifyDataIntegrity(backup);
}
}
```
### 3. Rollback Strategy
```typescript
// src/services/storage/migration/RollbackService.ts
export class RollbackService {
async rollback(backup: MigrationBackup): Promise<void> {
try {
// 1. Stop all database operations
await this.stopDatabaseOperations();
// 2. Restore from backup
await this.restoreFromBackup(backup);
// 3. Verify restoration
await this.verifyRestoration(backup);
// 4. Clean up absurd-sql
await this.cleanupAbsurdSql();
} catch (error) {
throw new StorageError(
'Rollback failed',
StorageErrorCodes.ROLLBACK_FAILED,
error
);
}
}
private async restoreFromBackup(backup: MigrationBackup): Promise<void> {
const dexieDB = new Dexie('TimeSafariDB');
// Restore accounts
await dexieDB.accounts.bulkPut(backup.accounts);
// Restore settings
await dexieDB.settings.bulkPut(backup.settings);
// Restore contacts
await dexieDB.contacts.bulkPut(backup.contacts);
}
}
```
## Migration UI
```vue
<!-- src/components/MigrationProgress.vue -->
<template>
<div class="migration-progress">
<h2>Database Migration</h2>
<div class="progress-container">
<div class="progress-bar" :style="{ width: `${progress}%` }" />
<div class="progress-text">{{ progress }}%</div>
</div>
<div class="status-message">{{ statusMessage }}</div>
<div v-if="error" class="error-message">
{{ error }}
<button @click="retryMigration">Retry</button>
</div>
</div>
</template>
<script setup lang="ts">
import { ref, onMounted } from 'vue';
import { MigrationService } from '@/services/storage/migration/MigrationService';
const progress = ref(0);
const statusMessage = ref('Preparing migration...');
const error = ref<string | null>(null);
const migrationService = MigrationService.getInstance();
async function startMigration() {
try {
// 1. Preparation
statusMessage.value = 'Creating backup...';
await migrationService.prepare();
progress.value = 20;
// 2. Data migration
statusMessage.value = 'Migrating data...';
await migrationService.migrate();
progress.value = 80;
// 3. Verification
statusMessage.value = 'Verifying migration...';
await migrationService.verify();
progress.value = 100;
statusMessage.value = 'Migration completed successfully!';
} catch (err) {
error.value = err instanceof Error ? err.message : 'Migration failed';
statusMessage.value = 'Migration failed';
}
}
async function retryMigration() {
error.value = null;
progress.value = 0;
await startMigration();
}
onMounted(() => {
startMigration();
});
</script>
<style scoped>
.migration-progress {
padding: 2rem;
max-width: 600px;
margin: 0 auto;
}
.progress-container {
position: relative;
height: 20px;
background: #eee;
border-radius: 10px;
overflow: hidden;
margin: 1rem 0;
}
.progress-bar {
position: absolute;
height: 100%;
background: #4CAF50;
transition: width 0.3s ease;
}
.progress-text {
position: absolute;
width: 100%;
text-align: center;
line-height: 20px;
color: #000;
}
.status-message {
text-align: center;
margin: 1rem 0;
}
.error-message {
color: #f44336;
text-align: center;
margin: 1rem 0;
}
button {
margin-top: 1rem;
padding: 0.5rem 1rem;
background: #2196F3;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
}
button:hover {
background: #1976D2;
}
</style>
```
## Testing Strategy
1. **Unit Tests**
```typescript
// src/services/storage/migration/__tests__/MigrationService.spec.ts
describe('MigrationService', () => {
it('should initialize absurd-sql correctly', async () => {
const service = MigrationService.getInstance();
await service.initializeAbsurdSql();
expect(service.isInitialized()).toBe(true);
expect(service.getDatabase()).toBeDefined();
});
it('should create valid backup', async () => {
const service = MigrationService.getInstance();
const backup = await service.createBackup();
expect(backup).toBeDefined();
expect(backup.accounts).toBeInstanceOf(Array);
expect(backup.settings).toBeInstanceOf(Array);
expect(backup.contacts).toBeInstanceOf(Array);
});
it('should migrate data correctly', async () => {
const service = MigrationService.getInstance();
const backup = await service.createBackup();
await service.migrate(backup);
// Verify migration
const accounts = await service.getMigratedAccounts();
expect(accounts).toHaveLength(backup.accounts.length);
});
it('should handle rollback correctly', async () => {
const service = MigrationService.getInstance();
const backup = await service.createBackup();
// Simulate failed migration
await service.migrate(backup);
await service.simulateFailure();
// Perform rollback
await service.rollback(backup);
// Verify rollback
const accounts = await service.getOriginalAccounts();
expect(accounts).toHaveLength(backup.accounts.length);
});
});
```
2. **Integration Tests**
```typescript
// src/services/storage/migration/__tests__/integration/Migration.spec.ts
describe('Migration Integration', () => {
it('should handle concurrent access during migration', async () => {
const service = MigrationService.getInstance();
// Start migration
const migrationPromise = service.migrate();
// Simulate concurrent access
const accessPromises = Array(5).fill(null).map(() =>
service.getAccount('did:test:123')
);
// Wait for all operations
const [migrationResult, ...accessResults] = await Promise.allSettled([
migrationPromise,
...accessPromises
]);
// Verify results
expect(migrationResult.status).toBe('fulfilled');
expect(accessResults.some(r => r.status === 'rejected')).toBe(true);
});
it('should maintain data integrity during platform transition', async () => {
const service = MigrationService.getInstance();
// Simulate platform change
await service.simulatePlatformChange();
// Verify data
const accounts = await service.getAllAccounts();
const settings = await service.getAllSettings();
const contacts = await service.getAllContacts();
expect(accounts).toBeDefined();
expect(settings).toBeDefined();
expect(contacts).toBeDefined();
});
});
```
## Success Criteria
1. **Data Integrity**
- [ ] All accounts migrated successfully
- [ ] All settings preserved
- [ ] All contacts transferred
- [ ] No data corruption
2. **Performance**
- [ ] Migration completes within acceptable time
- [ ] No significant performance degradation
- [ ] Efficient storage usage
- [ ] Smooth user experience
3. **Security**
- [ ] Encrypted data remains secure
- [ ] Access controls maintained
- [ ] No sensitive data exposure
- [ ] Secure backup process
4. **User Experience**
- [ ] Clear migration progress
- [ ] Informative error messages
- [ ] Automatic recovery from failures
- [ ] No data loss
## Rollback Plan
1. **Automatic Rollback**
- Triggered by migration failure
- Restores from verified backup
- Maintains data consistency
- Logs rollback reason
2. **Manual Rollback**
- Available through settings
- Requires user confirmation
- Preserves backup data
- Provides rollback status
3. **Emergency Recovery**
- Manual backup restoration
- Database repair tools
- Data recovery procedures
- Support contact information
## Post-Migration
1. **Verification**
- Data integrity checks
- Performance monitoring
- Error rate tracking
- User feedback collection
2. **Cleanup**
- Remove old database
- Clear migration artifacts
- Update application state
- Archive backup data
3. **Monitoring**
- Track migration success rate
- Monitor performance metrics
- Collect error reports
- Gather user feedback
## Support
For assistance with migration:
1. Check the troubleshooting guide
2. Review error logs
3. Contact support team
4. Submit issue report
## Timeline
1. **Preparation Phase** (1 week)
- Backup system implementation
- Migration service development
- Testing framework setup
2. **Testing Phase** (2 weeks)
- Unit testing
- Integration testing
- Performance testing
- Security testing
3. **Deployment Phase** (1 week)
- Staged rollout
- Monitoring
- Support preparation
- Documentation updates
4. **Post-Deployment** (2 weeks)
- Monitoring
- Bug fixes
- Performance optimization
- User feedback collection

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# Storage Implementation Checklist
## Core Services
### 1. Storage Service Layer
- [ ] Create base `StorageService` interface
- [ ] Define common methods for all platforms
- [ ] Add platform-specific method signatures
- [ ] Include error handling types
- [ ] Add migration support methods
- [ ] Implement platform-specific services
- [ ] `WebSQLiteService` (absurd-sql)
- [ ] Database initialization
- [ ] VFS setup with IndexedDB backend
- [ ] Connection management
- [ ] Query builder
- [ ] `NativeSQLiteService` (iOS/Android)
- [ ] SQLCipher integration
- [ ] Native bridge setup
- [ ] File system access
- [ ] `ElectronSQLiteService`
- [ ] Node SQLite integration
- [ ] IPC communication
- [ ] File system access
### 2. Migration Services
- [ ] Implement `MigrationService`
- [ ] Backup creation
- [ ] Data verification
- [ ] Rollback procedures
- [ ] Progress tracking
- [ ] Create `MigrationUI` components
- [ ] Progress indicators
- [ ] Error handling
- [ ] User notifications
- [ ] Manual triggers
### 3. Security Layer
- [ ] Implement `EncryptionService`
- [ ] Key management
- [ ] Encryption/decryption
- [ ] Secure storage
- [ ] Add `BiometricService`
- [ ] Platform detection
- [ ] Authentication flow
- [ ] Fallback mechanisms
## Platform-Specific Implementation
### Web Platform
- [ ] Setup absurd-sql
- [ ] Install dependencies
```json
{
"@jlongster/sql.js": "^1.8.0",
"absurd-sql": "^1.8.0"
}
```
- [ ] Configure VFS with IndexedDB backend
- [ ] Setup worker threads
- [ ] Implement connection pooling
- [ ] Configure database pragmas
```sql
PRAGMA journal_mode=MEMORY;
PRAGMA synchronous=NORMAL;
PRAGMA foreign_keys=ON;
PRAGMA busy_timeout=5000;
```
- [ ] Update build configuration
- [ ] Modify `vite.config.ts`
- [ ] Add worker configuration
- [ ] Update chunk splitting
- [ ] Configure asset handling
- [ ] Implement IndexedDB fallback
- [ ] Create fallback service
- [ ] Add data synchronization
- [ ] Handle quota exceeded
- [ ] Implement atomic operations
### iOS Platform
- [ ] Setup SQLCipher
- [ ] Install pod dependencies
- [ ] Configure encryption
- [ ] Setup keychain access
- [ ] Implement secure storage
- [ ] Update Capacitor config
- [ ] Modify `capacitor.config.ts`
- [ ] Add iOS permissions
- [ ] Configure backup
- [ ] Setup app groups
### Android Platform
- [ ] Setup SQLCipher
- [ ] Add Gradle dependencies
- [ ] Configure encryption
- [ ] Setup keystore
- [ ] Implement secure storage
- [ ] Update Capacitor config
- [ ] Modify `capacitor.config.ts`
- [ ] Add Android permissions
- [ ] Configure backup
- [ ] Setup file provider
### Electron Platform
- [ ] Setup Node SQLite
- [ ] Install dependencies
- [ ] Configure IPC
- [ ] Setup file system access
- [ ] Implement secure storage
- [ ] Update Electron config
- [ ] Modify `electron.config.ts`
- [ ] Add security policies
- [ ] Configure file access
- [ ] Setup auto-updates
## Data Models and Types
### 1. Database Schema
- [ ] Define tables
```sql
-- Accounts table
CREATE TABLE accounts (
did TEXT PRIMARY KEY,
public_key_hex TEXT NOT NULL,
created_at INTEGER NOT NULL,
updated_at INTEGER NOT NULL
);
-- Settings table
CREATE TABLE settings (
key TEXT PRIMARY KEY,
value TEXT NOT NULL,
updated_at INTEGER NOT NULL
);
-- Contacts table
CREATE TABLE contacts (
id TEXT PRIMARY KEY,
did TEXT NOT NULL,
name TEXT,
created_at INTEGER NOT NULL,
updated_at INTEGER NOT NULL,
FOREIGN KEY (did) REFERENCES accounts(did)
);
-- Indexes for performance
CREATE INDEX idx_accounts_created_at ON accounts(created_at);
CREATE INDEX idx_contacts_did ON contacts(did);
CREATE INDEX idx_settings_updated_at ON settings(updated_at);
```
- [ ] Create indexes
- [ ] Define constraints
- [ ] Add triggers
- [ ] Setup migrations
### 2. Type Definitions
- [ ] Create interfaces
```typescript
interface Account {
did: string;
publicKeyHex: string;
createdAt: number;
updatedAt: number;
}
interface Setting {
key: string;
value: string;
updatedAt: number;
}
interface Contact {
id: string;
did: string;
name?: string;
createdAt: number;
updatedAt: number;
}
```
- [ ] Add validation
- [ ] Create DTOs
- [ ] Define enums
- [ ] Add type guards
## UI Components
### 1. Migration UI
- [ ] Create components
- [ ] `MigrationProgress.vue`
- [ ] `MigrationError.vue`
- [ ] `MigrationSettings.vue`
- [ ] `MigrationStatus.vue`
### 2. Settings UI
- [ ] Update components
- [ ] Add storage settings
- [ ] Add migration controls
- [ ] Add backup options
- [ ] Add security settings
### 3. Error Handling UI
- [ ] Create components
- [ ] `StorageError.vue`
- [ ] `QuotaExceeded.vue`
- [ ] `MigrationFailed.vue`
- [ ] `RecoveryOptions.vue`
## Testing
### 1. Unit Tests
- [ ] Test services
- [ ] Storage service tests
- [ ] Migration service tests
- [ ] Security service tests
- [ ] Platform detection tests
### 2. Integration Tests
- [ ] Test migrations
- [ ] Web platform tests
- [ ] iOS platform tests
- [ ] Android platform tests
- [ ] Electron platform tests
### 3. E2E Tests
- [ ] Test workflows
- [ ] Account management
- [ ] Settings management
- [ ] Contact management
- [ ] Migration process
## Documentation
### 1. Technical Documentation
- [ ] Update architecture docs
- [ ] Add API documentation
- [ ] Create migration guides
- [ ] Document security measures
### 2. User Documentation
- [ ] Update user guides
- [ ] Add troubleshooting guides
- [ ] Create FAQ
- [ ] Document new features
## Deployment
### 1. Build Process
- [ ] Update build scripts
- [ ] Add platform-specific builds
- [ ] Configure CI/CD
- [ ] Setup automated testing
### 2. Release Process
- [ ] Create release checklist
- [ ] Add version management
- [ ] Setup rollback procedures
- [ ] Configure monitoring
## Monitoring and Analytics
### 1. Error Tracking
- [ ] Setup error logging
- [ ] Add performance monitoring
- [ ] Configure alerts
- [ ] Create dashboards
### 2. Usage Analytics
- [ ] Add storage metrics
- [ ] Track migration success
- [ ] Monitor performance
- [ ] Collect user feedback
## Security Audit
### 1. Code Review
- [ ] Review encryption
- [ ] Check access controls
- [ ] Verify data handling
- [ ] Audit dependencies
### 2. Penetration Testing
- [ ] Test data access
- [ ] Verify encryption
- [ ] Check authentication
- [ ] Review permissions
## Success Criteria
### 1. Performance
- [ ] Query response time < 100ms
- [ ] Migration time < 5s per 1000 records
- [ ] Storage overhead < 10%
- [ ] Memory usage < 50MB
- [ ] Atomic operations complete successfully
- [ ] Transaction performance meets requirements
### 2. Reliability
- [ ] 99.9% uptime
- [ ] Zero data loss
- [ ] Automatic recovery
- [ ] Backup verification
- [ ] Transaction atomicity
- [ ] Data consistency
### 3. Security
- [ ] AES-256 encryption
- [ ] Secure key storage
- [ ] Access control
- [ ] Audit logging
### 4. User Experience
- [ ] Smooth migration
- [ ] Clear error messages
- [ ] Progress indicators
- [ ] Recovery options