import Store from 'electron-store'
import { app } from 'electron'
import * as path from 'path'
import * as fs from 'fs'
import type { AppSettings, Channel, ErrorLogEntry } from '../shared/types'

// Default settings
export const defaultSettings: AppSettings = {
  general: {
    startMinimized: false,
    minimizeToTray: true,
    autoStart: false,
    language: 'tr',
  },
  monitoring: {
    pingInterval: 30,
    streamCheckInterval: 60,
    timeout: 5000,
    retryCount: 2,
  },
  notifications: {
    enabled: true,
    windows: { enabled: true },
    telegram: {
      enabled: false,
      botToken: '',
      chatId: '',
    },
    email: {
      enabled: false,
      smtpHost: '',
      smtpPort: 587,
      smtpUser: '',
      smtpPass: '',
      fromEmail: '',
      toEmail: '',
    },
    autoNotify: true,
    notifyOnPingFail: true,
    notifyOnStreamError: true,
    notifyOn404: true,
    notifyOnConnReset: true,
  },
  panel: {
    apiUrl: '',
    authToken: '',
    monitorId: '',
    enabled: false,
  },
}

// Check if running in portable mode
function isPortableMode(): boolean {
  // Check for portable marker file next to exe
  const exePath = app.getPath('exe')
  const exeDir = path.dirname(exePath)
  const portableMarker = path.join(exeDir, 'portable.txt')
  const portableDataDir = path.join(exeDir, 'data')
  
  // Portable mode if:
  // 1. portable.txt exists next to exe
  // 2. OR data folder exists next to exe
  // 3. OR running from a removable drive (simplified check)
  if (fs.existsSync(portableMarker) || fs.existsSync(portableDataDir)) {
    return true
  }
  
  // Check if exe name contains "Portable"
  if (exePath.toLowerCase().includes('portable')) {
    return true
  }
  
  return false
}

// Get the data directory for storing config
function getDataDirectory(): string {
  if (isPortableMode()) {
    const exeDir = path.dirname(app.getPath('exe'))
    const dataDir = path.join(exeDir, 'data')
    
    // Create data directory if it doesn't exist
    if (!fs.existsSync(dataDir)) {
      fs.mkdirSync(dataDir, { recursive: true })
    }
    
    return dataDir
  }
  
  // Use default app data location
  return app.getPath('userData')
}

// Store schema
interface StoreSchema {
  settings: AppSettings
  channels: Channel[]
  errorLog: ErrorLogEntry[]
  windowBounds: {
    x?: number
    y?: number
    width: number
    height: number
  }
}

// Create store instance
let storeInstance: Store<StoreSchema> | null = null

export function getStore(): Store<StoreSchema> {
  if (!storeInstance) {
    const dataDir = getDataDirectory()
    
    storeInstance = new Store<StoreSchema>({
      name: 'ip-monitor-config',
      cwd: dataDir,
      defaults: {
        settings: defaultSettings,
        channels: [],
        errorLog: [],
        windowBounds: {
          width: 1400,
          height: 900,
        },
      },
      // Enable encryption for sensitive data
      encryptionKey: 'ip-monitor-v1-key',
      // Clear invalid config
      clearInvalidConfig: true,
    })
    
    console.log(`[Store] Config location: ${dataDir}`)
    console.log(`[Store] Portable mode: ${isPortableMode()}`)
  }
  
  return storeInstance
}

// Helper functions for common operations
export function getSettings(): AppSettings {
  return getStore().get('settings', defaultSettings)
}

export function saveSettings(settings: AppSettings): void {
  getStore().set('settings', settings)
}

export function getChannels(): Channel[] {
  return getStore().get('channels', [])
}

export function saveChannels(channels: Channel[]): void {
  getStore().set('channels', channels)
}

export function addChannel(channel: Channel): void {
  const channels = getChannels()
  channels.push(channel)
  saveChannels(channels)
}

export function updateChannel(channelId: string, updates: Partial<Channel>): void {
  const channels = getChannels()
  const index = channels.findIndex(c => c.id === channelId)
  if (index !== -1) {
    channels[index] = { ...channels[index], ...updates }
    saveChannels(channels)
  }
}

export function removeChannel(channelId: string): void {
  const channels = getChannels().filter(c => c.id !== channelId)
  saveChannels(channels)
}

export function getErrorLog(): ErrorLogEntry[] {
  return getStore().get('errorLog', [])
}

export function addErrorLog(entry: ErrorLogEntry): void {
  const log = getErrorLog()
  log.unshift(entry) // Add to beginning
  // Keep only last 100 entries
  if (log.length > 100) {
    log.length = 100
  }
  getStore().set('errorLog', log)
}

export function clearErrorLog(): void {
  getStore().set('errorLog', [])
}

export function getWindowBounds() {
  return getStore().get('windowBounds')
}

export function saveWindowBounds(bounds: { x?: number; y?: number; width: number; height: number }): void {
  getStore().set('windowBounds', bounds)
}

// Export portable mode check
export { isPortableMode }