MISC: Add file metadata (timestamps) (#2199)

src/TextFile.ts

@@ -1,10 +1,10 @@
-import { BaseServer } from "./Server/BaseServer";
-import { Generic_fromJSON, Generic_toJSON, IReviverValue, constructorsForReviver } from "./utils/JSONReviver";
-import { TextFilePath } from "./Paths/TextFilePath";
+import type { BaseServer } from "./Server/BaseServer";
+import { Generic_fromJSON, Generic_toJSON, type IReviverValue, constructorsForReviver } from "./utils/JSONReviver";
+import type { TextFilePath } from "./Paths/TextFilePath";
 import { ContentFile } from "./Paths/ContentFile";
 
 /** Represents a plain text file that is typically stored on a server. */
-export class TextFile implements ContentFile {
+export class TextFile extends ContentFile {
   /** The full file name. */
   filename: TextFilePath;
 
@@ -13,13 +13,16 @@ export class TextFile implements ContentFile {
 
   // Shared interface on Script and TextFile for accessing content
   get content() {
+    this.metadata.read();
     return this.text;
   }
   set content(text: string) {
+    this.metadata.edit();
     this.text = text;
   }
 
   constructor(filename = "default.txt" as TextFilePath, txt = "") {
+    super();
     this.filename = filename;
     this.text = txt;
   }