From 63ea5647342b5a01595c0d05fc46d26a95036449 Mon Sep 17 00:00:00 2001
From: Elio Struyf <elio@struyfconsulting.be>
Date: Mon, 7 Oct 2024 21:14:58 +0200
Subject: [PATCH] #863 fix empty page folder cache

---
 src/commands/Article.ts               |  2 +-
 src/commands/Folders.ts               | 25 +++++++++++++++++++------
 src/localization/localization.enum.ts |  2 +-
 3 files changed, 21 insertions(+), 8 deletions(-)

diff --git a/src/commands/Article.ts b/src/commands/Article.ts
index 24ed1d2d..b0e35076 100644
--- a/src/commands/Article.ts
+++ b/src/commands/Article.ts
@@ -375,7 +375,7 @@ export class Article {
       const autoUpdate = Settings.get(SETTING_AUTO_UPDATE_DATE);
 
       // Is article located in one of the content folders
-      const folders = Folders.getCached();
+      const folders = await Folders.getCachedOrFresh();
       const documentPath = parseWinPath(document.fileName);
       const folder = folders.find((f) => documentPath.startsWith(f.path));
       if (!folder) {
diff --git a/src/commands/Folders.ts b/src/commands/Folders.ts
index ed46d597..04fa6712 100644
--- a/src/commands/Folders.ts
+++ b/src/commands/Folders.ts
@@ -39,7 +39,7 @@ import { Preview } from './Preview';
 export const WORKSPACE_PLACEHOLDER = `[[workspace]]`;
 
 export class Folders {
-  private static _folders: ContentFolder[] = [];
+  private static _folders: ContentFolder[] | undefined = undefined;
 
   public static async registerCommands() {
     const ext = Extension.getInstance();
@@ -50,7 +50,7 @@ export class Folders {
 
   public static clearCached() {
     Logger.verbose(`Folders:clearCached`);
-    Folders._folders = [];
+    Folders._folders = undefined;
   }
 
   /**
@@ -327,7 +327,7 @@ export class Folders {
   public static async get(): Promise<ContentFolder[]> {
     Logger.verbose('Folders:get:start');
 
-    if (Folders._folders.length > 0) {
+    if (Folders._folders && Folders._folders.length > 0) {
       Logger.verbose('Folders:get:end - cached folders');
       return Folders._folders;
     }
@@ -452,10 +452,23 @@ export class Folders {
    * Get the cached folder settings
    * @returns {ContentFolder[]} - The cached folder settings
    */
-  public static getCached(): ContentFolder[] {
+  public static getCached(): ContentFolder[] | undefined {
     return Folders._folders;
   }
 
+  /**
+   * Retrieves the cached content folders if available, otherwise fetches fresh content folders.
+   *
+   * @returns {Promise<ContentFolder[]>} A promise that resolves to an array of content folders.
+   */
+  public static async getCachedOrFresh(): Promise<ContentFolder[]> {
+    if (Folders._folders && Folders._folders.length > 0) {
+      return Folders._folders;
+    }
+
+    return await Folders.get();
+  }
+
   /**
    * Update the folder settings
    * @param folders
@@ -688,7 +701,7 @@ export class Folders {
   public static async getPageFolderByFilePath(
     filePath: string
   ): Promise<ContentFolder | undefined> {
-    const folders = Folders.getCached();
+    const folders = await Folders.getCachedOrFresh();
     const parsedPath = parseWinPath(filePath);
     const pageFolderMatches = folders
       .filter((folder) => parsedPath && folder.path && parsedPath.includes(folder.path))
@@ -719,7 +732,7 @@ export class Folders {
       return;
     }
 
-    const folders = Folders.getCached();
+    const folders = await Folders.getCachedOrFresh();
     let selectedFolder: ContentFolder | undefined;
 
     // Try to find the folder by content type
diff --git a/src/localization/localization.enum.ts b/src/localization/localization.enum.ts
index 8387f727..2af534f4 100644
--- a/src/localization/localization.enum.ts
+++ b/src/localization/localization.enum.ts
@@ -492,7 +492,7 @@ export enum LocalizationKey {
    */
   dashboardDataViewDataViewCloseSelectedDataFile = 'dashboard.dataView.dataView.closeSelectedDataFile',
   /**
-   * Select your date type first
+   * Select your data type first
    */
   dashboardDataViewEmptyViewHeading = 'dashboard.dataView.emptyView.heading',
   /**