// src/main/ipc-handlers.ts
import { ipcMain, BrowserWindow, nativeTheme, dialog } from 'electron'
import store, { ConnectionConfig } from './store'
import { encrypt, decrypt } from './credential'
import * as redisService from './redis-service'

export function registerIpcHandlers(): void {
  // Window
  ipcMain.on('window:minimize', () => BrowserWindow.getFocusedWindow()?.minimize())
  ipcMain.on('window:maximize', () => {
    const win = BrowserWindow.getFocusedWindow()
    if (win) win.isMaximized() ? win.unmaximize() : win.maximize()
  })
  ipcMain.on('window:close', () => BrowserWindow.getFocusedWindow()?.close())

  // Theme
  ipcMain.handle('theme:get', () => nativeTheme.shouldUseDarkColors)
  ipcMain.on('theme:set', (_e, theme: 'system' | 'dark' | 'light') => {
    nativeTheme.themeSource = theme
  })

  // Dialog
  ipcMain.handle('dialog:openFile', async (_e, options: Electron.OpenDialogOptions) => {
    const win = BrowserWindow.getFocusedWindow()
    if (!win) return null
    const result = await dialog.showOpenDialog(win, options)
    if (result.canceled || result.filePaths.length === 0) return null
    const fs = await import('fs')
    try {
      return { path: result.filePaths[0], content: fs.readFileSync(result.filePaths[0], 'utf-8') }
    } catch { return null }
  })

  // Credential
  ipcMain.handle('credential:encrypt', (_e, text: string) => encrypt(text))
  ipcMain.handle('credential:decrypt', (_e, encoded: string) => decrypt(encoded))

  // Storage - connections
  ipcMain.handle('storage:getConnections', () => store.get('connections', []))
  ipcMain.handle('storage:saveConnection', (_e, conn: ConnectionConfig) => {
    const connections = store.get('connections', [])
    const idx = connections.findIndex((c: ConnectionConfig) => c.id === conn.id)
    if (idx >= 0) connections[idx] = conn
    else connections.push(conn)
    store.set('connections', connections)
    return connections
  })
  ipcMain.handle('storage:deleteConnection', (_e, id: string) => {
    const connections = store.get('connections', []).filter((c: ConnectionConfig) => c.id !== id)
    store.set('connections', connections)
    return connections
  })
  ipcMain.handle('storage:reorderConnections', (_e, ids: string[]) => {
    const connections = store.get('connections', [])
    const reordered = ids.map((id, i) => {
      const conn = connections.find((c: ConnectionConfig) => c.id === id)!
      conn.order = i
      return conn
    })
    store.set('connections', reordered)
    return reordered
  })

  // Storage - settings
  ipcMain.handle('storage:getSettings', () => store.get('settings'))
  ipcMain.handle('storage:saveSettings', (_e, settings) => {
    store.set('settings', settings)
  })

  // Redis
  ipcMain.handle('redis:connect', async (_e, id: string, opts) => {
    try {
      await redisService.connect(id, opts)
      return { success: true }
    } catch (err: any) {
      return { success: false, error: err.message }
    }
  })
  ipcMain.handle('redis:disconnect', async (_e, id: string) => {
    await redisService.disconnect(id)
  })
  ipcMain.handle('redis:execute', async (_e, id: string, command: string, args: string[]) => {
    return redisService.execute(id, command, args)
  })
  ipcMain.handle('redis:getInfo', async (_e, id: string) => {
    return redisService.getServerInfo(id)
  })
  ipcMain.handle('redis:scanKeys', async (_e, id: string, cursor: string, pattern: string, count: number) => {
    return redisService.scanKeys(id, cursor, pattern, count)
  })
  ipcMain.handle('redis:getKeyType', async (_e, id: string, key: string) => {
    return redisService.getKeyType(id, key)
  })
  ipcMain.handle('redis:getKeyTTL', async (_e, id: string, key: string) => {
    return redisService.getKeyTTL(id, key)
  })
  ipcMain.handle('redis:getString', async (_e, id: string, key: string) => {
    return redisService.getStringValue(id, key)
  })
  ipcMain.handle('redis:setString', async (_e, id: string, key: string, value: string) => {
    await redisService.setStringValue(id, key, value)
  })
  ipcMain.handle('redis:deleteKey', async (_e, id: string, key: string) => {
    await redisService.deleteKey(id, key)
  })
  ipcMain.handle('redis:hashScan', async (_e, id: string, key: string, cursor: string, count: number) => {
    return redisService.getHashFields(id, key, cursor, count)
  })
  ipcMain.handle('redis:hashSet', async (_e, id: string, key: string, field: string, value: string) => {
    await redisService.setHashField(id, key, field, value)
  })
  ipcMain.handle('redis:hashDel', async (_e, id: string, key: string, field: string) => {
    await redisService.deleteHashField(id, key, field)
  })
  ipcMain.handle('redis:setTTL', async (_e, id: string, key: string, ttl: number) => {
    await redisService.setKeyTTL(id, key, ttl)
  })
  ipcMain.handle('redis:selectDb', async (_e, id: string, db: number) => {
    await redisService.selectDb(id, db)
  })
  ipcMain.handle('redis:dbSize', async (_e, id: string) => {
    return redisService.dbSize(id)
  })

  // List
  ipcMain.handle('redis:listRange', async (_e, id: string, key: string, start: number, stop: number) => {
    return redisService.listRange(id, key, start, stop)
  })
  ipcMain.handle('redis:listLength', async (_e, id: string, key: string) => {
    return redisService.listLength(id, key)
  })
  ipcMain.handle('redis:listPush', async (_e, id: string, key: string, values: string[]) => {
    return redisService.listPush(id, key, ...values)
  })
  ipcMain.handle('redis:listSet', async (_e, id: string, key: string, index: number, value: string) => {
    await redisService.listSet(id, key, index, value)
  })
  ipcMain.handle('redis:listRemove', async (_e, id: string, key: string, count: number, value: string) => {
    return redisService.listRemove(id, key, count, value)
  })

  // Set
  ipcMain.handle('redis:setMembers', async (_e, id: string, key: string) => {
    return redisService.setMembers(id, key)
  })
  ipcMain.handle('redis:setSize', async (_e, id: string, key: string) => {
    return redisService.setSize(id, key)
  })
  ipcMain.handle('redis:setAdd', async (_e, id: string, key: string, members: string[]) => {
    return redisService.setAdd(id, key, ...members)
  })
  ipcMain.handle('redis:setRemove', async (_e, id: string, key: string, members: string[]) => {
    return redisService.setRemove(id, key, ...members)
  })

  // Sorted set
  ipcMain.handle('redis:zsetRange', async (_e, id: string, key: string, start: number, stop: number, withScores: boolean) => {
    return redisService.zsetRange(id, key, start, stop, withScores)
  })
  ipcMain.handle('redis:zsetSize', async (_e, id: string, key: string) => {
    return redisService.zsetSize(id, key)
  })
  ipcMain.handle('redis:zsetAdd', async (_e, id: string, key: string, score: number, member: string) => {
    return redisService.zsetAdd(id, key, score, member)
  })
  ipcMain.handle('redis:zsetRemove', async (_e, id: string, key: string, members: string[]) => {
    return redisService.zsetRemove(id, key, ...members)
  })

  // Slow log
  ipcMain.handle('redis:slowLogGet', async (_e, id: string, count: number) => {
    return redisService.slowLogGet(id, count)
  })
  ipcMain.handle('redis:slowLogLen', async (_e, id: string) => {
    return redisService.slowLogLen(id)
  })

  // Memory
  ipcMain.handle('redis:memoryUsage', async (_e, id: string, key: string) => {
    return redisService.memoryUsage(id, key)
  })
}