fix: macOS ssh term unusable (#838)

lib/data/model/app/scripts/shell_func.dart

@@ -0,0 +1,102 @@
+import 'package:server_box/data/model/app/scripts/script_builders.dart';
+import 'package:server_box/data/model/app/scripts/script_consts.dart';
+import 'package:server_box/data/model/server/system.dart';
+import 'package:server_box/data/provider/server.dart';
+
+/// Shell functions available in the ServerBox application
+enum ShellFunc {
+  status('SbStatus'),
+  process('SbProcess'),
+  shutdown('SbShutdown'),
+  reboot('SbReboot'),
+  suspend('SbSuspend');
+
+  /// The function name used in scripts
+  final String name;
+
+  const ShellFunc(this.name);
+
+  /// Get the command line flag for this function
+  String get flag => switch (this) {
+    ShellFunc.process => 'p',
+    ShellFunc.shutdown => 'sd',
+    ShellFunc.reboot => 'r',
+    ShellFunc.suspend => 'sp',
+    ShellFunc.status => 's',
+  };
+
+  /// Execute this shell function on the specified server
+  String exec(String id, {SystemType? systemType}) {
+    final scriptPath = ShellFuncManager.getScriptPath(id, systemType: systemType);
+    final isWindows = systemType == SystemType.windows;
+    final builder = ScriptBuilderFactory.getBuilder(isWindows);
+
+    return builder.getExecCommand(scriptPath, this);
+  }
+}
+
+/// Manager class for shell function operations
+class ShellFuncManager {
+  const ShellFuncManager._();
+
+  /// Normalize a directory path to ensure it doesn't end with trailing separators
+  static String _normalizeDir(String dir, bool isWindows) {
+    final separator = isWindows ? ScriptConstants.windowsPathSeparator : ScriptConstants.unixPathSeparator;
+
+    // Remove all trailing separators
+    final pattern = RegExp('${RegExp.escape(separator)}+\$');
+    return dir.replaceAll(pattern, '');
+  }
+
+  /// Get the script directory for the given [id].
+  ///
+  /// Checks for custom script directory first, then falls back to default.
+  static String getScriptDir(String id, {SystemType? systemType}) {
+    final customScriptDir = ServerProvider.pick(id: id)?.value.spi.custom?.scriptDir;
+    final isWindows = systemType == SystemType.windows;
+
+    if (customScriptDir != null) return _normalizeDir(customScriptDir, isWindows);
+    return ScriptPaths.getScriptDir(id, isWindows: isWindows);
+  }
+
+  /// Switch between tmp and home directories for script storage
+  static void switchScriptDir(String id, {SystemType? systemType}) {
+    final isWindows = systemType == SystemType.windows;
+    ScriptPaths.switchScriptDir(id, isWindows: isWindows);
+  }
+
+  /// Get the full script path for the given [id]
+  static String getScriptPath(String id, {SystemType? systemType}) {
+    final customScriptDir = ServerProvider.pick(id: id)?.value.spi.custom?.scriptDir;
+    if (customScriptDir != null) {
+      final isWindows = systemType == SystemType.windows;
+      final normalizedDir = _normalizeDir(customScriptDir, isWindows);
+      final fileName = isWindows ? ScriptConstants.scriptFileWindows : ScriptConstants.scriptFile;
+      final separator = isWindows ? ScriptConstants.windowsPathSeparator : ScriptConstants.unixPathSeparator;
+      return '$normalizedDir$separator$fileName';
+    }
+
+    final isWindows = systemType == SystemType.windows;
+    return ScriptPaths.getScriptPath(id, isWindows: isWindows);
+  }
+
+  /// Get the installation shell command for the script
+  static String getInstallShellCmd(String id, {SystemType? systemType}) {
+    final scriptDir = getScriptDir(id, systemType: systemType);
+    final isWindows = systemType == SystemType.windows;
+    final normalizedDir = _normalizeDir(scriptDir, isWindows);
+    final builder = ScriptBuilderFactory.getBuilder(isWindows);
+    final separator = isWindows ? ScriptConstants.windowsPathSeparator : ScriptConstants.unixPathSeparator;
+    final scriptPath = '$normalizedDir$separator${builder.scriptFileName}';
+
+    return builder.getInstallCommand(normalizedDir, scriptPath);
+  }
+
+  /// Generate complete script based on system type
+  static String allScript(Map<String, String>? customCmds, {SystemType? systemType}) {
+    final isWindows = systemType == SystemType.windows;
+    final builder = ScriptBuilderFactory.getBuilder(isWindows);
+
+    return builder.buildScript(customCmds);
+  }
+}