[Init] Initial commit - NetMesh terminal manager

application/state/sftp/sftpClipboardStore.ts

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+/**
+ * SFTP Clipboard Store
+ * 
+ * Manages clipboard state for SFTP file operations (copy/cut/paste)
+ * This is a simple store that holds the clipboard state and operation type.
+ */
+
+import { useSyncExternalStore } from "react";
+
+type SftpClipboardOperation = "copy" | "cut";
+
+export interface SftpClipboardFile {
+  name: string;
+  isDirectory: boolean;
+}
+
+interface SftpClipboardState {
+  files: SftpClipboardFile[];
+  sourcePath: string;
+  sourceConnectionId: string;
+  sourceSide: "left" | "right";
+  operation: SftpClipboardOperation;
+}
+
+type ClipboardListener = () => void;
+
+let clipboardState: SftpClipboardState | null = null;
+const clipboardListeners = new Set<ClipboardListener>();
+
+const notifyListeners = () => {
+  clipboardListeners.forEach((listener) => listener());
+};
+
+export const sftpClipboardStore = {
+  getSnapshot: (): SftpClipboardState | null => clipboardState,
+  
+  subscribe: (listener: ClipboardListener) => {
+    clipboardListeners.add(listener);
+    return () => clipboardListeners.delete(listener);
+  },
+
+  /**
+   * Copy files to clipboard
+   */
+  copy: (
+    files: SftpClipboardFile[],
+    sourcePath: string,
+    sourceConnectionId: string,
+    sourceSide: "left" | "right"
+  ) => {
+    clipboardState = {
+      files,
+      sourcePath,
+      sourceConnectionId,
+      sourceSide,
+      operation: "copy",
+    };
+    notifyListeners();
+  },
+
+  /**
+   * Cut files to clipboard
+   */
+  cut: (
+    files: SftpClipboardFile[],
+    sourcePath: string,
+    sourceConnectionId: string,
+    sourceSide: "left" | "right"
+  ) => {
+    clipboardState = {
+      files,
+      sourcePath,
+      sourceConnectionId,
+      sourceSide,
+      operation: "cut",
+    };
+    notifyListeners();
+  },
+
+  /**
+   * Clear clipboard (called after paste for cut operation)
+   */
+  clear: () => {
+    clipboardState = null;
+    notifyListeners();
+  },
+
+  /**
+   * Update clipboard file list (used for partial cut transfers)
+   */
+  updateFiles: (files: SftpClipboardFile[]) => {
+    if (!clipboardState) return;
+    if (files.length === 0) {
+      clipboardState = null;
+    } else {
+      clipboardState = {
+        ...clipboardState,
+        files,
+      };
+    }
+    notifyListeners();
+  },
+
+  /**
+   * Check if there are files in the clipboard
+   */
+  hasFiles: (): boolean => clipboardState !== null && clipboardState.files.length > 0,
+
+  /**
+   * Get the clipboard state
+   */
+  get: (): SftpClipboardState | null => clipboardState,
+};
+
+/**
+ * React hook to subscribe to clipboard state changes
+ */
+export const useSftpClipboard = (): SftpClipboardState | null => {
+  return useSyncExternalStore(
+    sftpClipboardStore.subscribe,
+    sftpClipboardStore.getSnapshot,
+    sftpClipboardStore.getSnapshot
+  );
+};