/**
 * Memorio Platform & Context Example
 *
 * This example demonstrates:
 * - Platform detection
 * - Checking storage persistence
 * - Context isolation for server-side multi-tenancy
 *
 * Run: npx ts-node examples/platform.ts
 */

import 'memorio'

// ============================================
// PLATFORM DETECTION
// ============================================

console.debug('=== Platform Detection ===')
console.debug('Memorio version:', memorio.version)

// Check which platform we're on
if (memorio.isBrowser()) {
  console.debug('Running in: Browser')
  console.debug('store.isPersistent:', store.isPersistent) // true
  console.debug('session.isPersistent:', session.isPersistent) // true
} else if (memorio.isNode()) {
  console.debug('Running in: Node.js')
  console.debug('store.isPersistent:', store.isPersistent) // false (memory fallback)
  console.debug('session.isPersistent:', session.isPersistent) // false (memory fallback)
} else if (memorio.isDeno()) {
  console.debug('Running in: Deno')
  console.debug('store.isPersistent:', store.isPersistent) // false (memory fallback)
  console.debug('session.isPersistent:', session.isPersistent) // false (memory fallback)
} else if (memorio.isEdge()) {
  console.debug('Running in: Edge Worker')
  console.debug('store.isPersistent:', store.isPersistent) // true
  console.debug('session.isPersistent:', session.isPersistent) // true
}

// Get detailed capabilities
const caps = memorio.getCapabilities()
console.debug('\nCapabilities:')
console.debug('  Platform:', caps.platform)
console.debug('  localStorage:', caps.hasLocalStorage ? '✅' : '❌')
console.debug('  sessionStorage:', caps.hasSessionStorage ? '✅' : '❌')
console.debug('  IndexedDB:', caps.hasIndexedDB ? '✅' : '❌')
console.debug('  Session ID:', caps.sessionId)

// ============================================
// CONTEXT ISOLATION (Server-Side)
// ============================================

console.debug('\n=== Context Isolation ===')
console.debug('Use memorio.createContext() for multi-tenant server applications')

// Example: Simulating different users/requests
// In a real app, you'd create a context per HTTP request

// Create isolated context for User A
const userAContext = memorio.createContext('user-A')
userAContext.state.name = 'Mario'
userAContext.store.set('preferences', { theme: 'dark' })
userAContext.session.set('token', 'user-A-token')

// Create isolated context for User B
const userBContext = memorio.createContext('user-B')
userBContext.state.name = 'Luigi'
userBContext.store.set('preferences', { theme: 'light' })
userBContext.session.set('token', 'user-B-token')

// Verify isolation - each context has its own data
console.debug('\nUser A context:')
console.debug('  state.name:', userAContext.state.name) // 'Mario'
console.debug('  store.preferences:', userAContext.store.get('preferences')) // { theme: 'dark' }
console.debug('  session.token:', userAContext.session.get('token')) // 'user-A-token'

console.debug('\nUser B context:')
console.debug('  state.name:', userBContext.state.name) // 'Luigi'
console.debug('  store.preferences:', userBContext.store.get('preferences')) // { theme: 'light' }
console.debug('  session.token:', userBContext.session.get('token')) // 'user-B-token'

// Global state is separate from contexts
console.debug('\nGlobal state (not affected by contexts):')
console.debug('  state.name:', state.name) // undefined

// List all contexts
console.debug('\nActive contexts:', memorio.listContexts()) // ['user-A', 'user-B']

// Cleanup - delete a context when done
memorio.deleteContext('user-A')
console.debug('After deleting user-A:', memorio.listContexts()) // ['user-B']

// ============================================
// USE CASE: EXPRESS/FASTIFY MIDDLEWARE EXAMPLE
// ============================================

console.debug('\n=== Server Use Case ===')
console.debug(`
// Example: Express middleware for request isolation
app.use((req, res, next) => {
  // Create isolated context per request
  const ctx = memorio.createContext(\`req-\${req.id}\`)
  req.memorio = ctx
  next()
})

// In your route handler:
app.get('/user', (req, res) => {
  // This state is isolated per request
  req.memorio.state.user = getUserData()
  req.memorio.store.set('cache', data)
})
`)

console.debug('\nPlatform & Context example complete!')