vChewing-macOS/Source/Modules/AppDelegate.swift

// (c) 2011 and onwards The OpenVanilla Project (MIT License).
// All possible vChewing-specific modifications are of:
// (c) 2021 and onwards The vChewing Project (MIT-NTL License).
// ====================
// This code is released under the MIT license (SPDX-License-Identifier: MIT)
// ... with NTL restriction stating that:
// No trademark license is granted to use the trade names, trademarks, service
// marks, or product names of Contributor, except as required to fulfill notice
// requirements defined in MIT License.

import FolderMonitor
import Shared
import Uninstaller
import UpdateSputnik

@objc(AppDelegate)
public class AppDelegate: NSObject, NSApplicationDelegate, NSUserNotificationCenterDelegate {
  private var folderMonitor = FolderMonitor(
    url: URL(fileURLWithPath: LMMgr.dataFolderPath(isDefaultFolder: false))
  )
}

// MARK: - Private Functions

extension AppDelegate {
  private func reloadOnFolderChangeHappens() {
    // 拖 100ms 再重載，畢竟有些有特殊需求的使用者可能會想使用巨型自訂語彙檔案。
    DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 0.1) {
      if PrefMgr.shared.shouldAutoReloadUserDataFiles { LMMgr.initUserLangModels() }
    }
  }
}

// MARK: - Public Functions

extension AppDelegate {
  public func userNotificationCenter(_: NSUserNotificationCenter, shouldPresent _: NSUserNotification) -> Bool {
    true
  }

  public func applicationDidFinishLaunching(_: Notification) {
    NSUserNotificationCenter.default.delegate = self
    // 一旦發現與使用者半衰模組的觀察行為有關的崩潰標記被開啟，就清空既有的半衰記憶資料檔案。
    if PrefMgr.shared.failureFlagForUOMObservation {
      LMMgr.clearUserOverrideModelData(.imeModeCHS)
      LMMgr.clearUserOverrideModelData(.imeModeCHT)
      PrefMgr.shared.failureFlagForUOMObservation = false
      let userNotification = NSUserNotification()
      userNotification.title = NSLocalizedString("vChewing", comment: "")
      userNotification.informativeText = NSLocalizedString(
        "vChewing crashed while handling previously loaded UOM observation data. These data files are cleaned now to ensure the usability.",
        comment: ""
      )
      userNotification.soundName = NSUserNotificationDefaultSoundName
      NSUserNotificationCenter.default.deliver(userNotification)
    }

    if !PrefMgr.shared.onlyLoadFactoryLangModelsIfNeeded { LMMgr.loadDataModelsOnAppDelegate() }
    DispatchQueue.main.async {
      LMMgr.loadCassetteData()
      LMMgr.initUserLangModels()
      self.folderMonitor.folderDidChange = { [weak self] in
        self?.reloadOnFolderChangeHappens()
      }
      if LMMgr.userDataFolderExists { self.folderMonitor.startMonitoring() }
    }

    PrefMgr.shared.fixOddPreferences()

    // 只要使用者沒有勾選檢查更新、沒有主動做出要檢查更新的操作，就不要檢查更新。
    if PrefMgr.shared.checkUpdateAutomatically {
      UpdateSputnik.shared.checkForUpdate(forced: false, url: kUpdateInfoSourceURL)
    }
  }

  public func updateDirectoryMonitorPath() {
    folderMonitor.stopMonitoring()
    folderMonitor = FolderMonitor(
      url: URL(fileURLWithPath: LMMgr.dataFolderPath(isDefaultFolder: false))
    )
    folderMonitor.folderDidChange = { [weak self] in
      self?.reloadOnFolderChangeHappens()
    }
    if LMMgr.userDataFolderExists { folderMonitor.startMonitoring() }
  }

  public func selfUninstall() {
    let content = String(
      format: NSLocalizedString(
        "This will remove vChewing Input Method from this user account, requiring your confirmation.",
        comment: ""
      ))
    let alert = NSAlert()
    alert.messageText = NSLocalizedString("Uninstallation", comment: "")
    alert.informativeText = content
    alert.addButton(withTitle: NSLocalizedString("OK", comment: ""))
    alert.addButton(withTitle: NSLocalizedString("Not Now", comment: ""))
    let result = alert.runModal()
    NSApp.activate(ignoringOtherApps: true)
    if result == NSApplication.ModalResponse.alertFirstButtonReturn {
      NSWorkspace.shared.openFile(
        LMMgr.dataFolderPath(isDefaultFolder: true), withApplication: "Finder"
      )
      Uninstaller.uninstall(
        isSudo: false, selfKill: true, defaultDataFolderPath: LMMgr.dataFolderPath(isDefaultFolder: true)
      )
    }
  }

  /// 檢查該程式本身的記憶體佔用量。
  /// - Returns: 記憶體佔用量（MiB）。
  @discardableResult public func checkMemoryUsage() -> Double {
    guard let currentMemorySizeInBytes = NSApplication.memoryFootprint else { return 0 }
    let currentMemorySize: Double = (Double(currentMemorySizeInBytes) / 1024 / 1024).rounded(toPlaces: 1)
    switch currentMemorySize {
      case 512...:
        vCLog("WARNING: EXCESSIVE MEMORY FOOTPRINT (\(currentMemorySize)MB).")
        let userNotification = NSUserNotification()
        userNotification.title = NSLocalizedString("vChewing", comment: "")
        userNotification.informativeText = NSLocalizedString(
          "vChewing is rebooted due to a memory-excessive-usage problem. If convenient, please inform the developer that you are having this issue, stating whether you are using an Intel Mac or Apple Silicon Mac. An NSLog is generated with the current memory footprint size.",
          comment: ""
        )
        NSUserNotificationCenter.default.deliver(userNotification)
        DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
          NSApp.terminate(self)
        }
      default: break
    }
    return currentMemorySize
  }

  // New About Window
  @IBAction public func about(_: Any) {
    CtlAboutWindow.show()
    NSApp.activate(ignoringOtherApps: true)
  }
}