draft: add fileGraph handler draft

packages/file-graph/fileGraph.js

@@ -0,0 +1,40 @@
+import FileNode from './fileNode.js'
+
+export default class FileGraph {
+  constructor(root) {
+    this.root = new FileNode(root)
+  }
+
+  add(file) {
+    // Logic to add the file node to the graph
+    // You can implement the logic to find the appropriate location in the file graph
+    // If the file node already exists, throw an error
+  }
+
+  remove(file) {
+    // Logic to remove a file node from the graph
+    // If the file node is a folder, also remove all children
+    // If the file node doesn't exist, throw an error
+  }
+
+  discover(eventFiles) {
+    // Logic to handle the discover event
+    // Overwrite the file graph with the provided files
+    // Remove file nodes that don't exist anymore and add new ones
+  }
+
+  handleEvent(event) {
+    switch (true) {
+      case !!event.add:
+        this.add(event.add)
+        break
+      case !!event.remove:
+        this.remove(event.remove)
+        break
+      case !!event.discover:
+        this.discover(event.discover)
+        break
+      // Implement other cases if needed
+    }
+  }
+}