feat: Support toggle favorite problem

package.json

@@ -124,6 +124,24 @@
                 "title": "Submit to LeetCode",
                 "category": "LeetCode"
             },
+            {
+                "command": "leetcode.addFavorite",
+                "title": "Add to Favorite List",
+                "category": "LeetCode",
+                "icon": {
+                    "light": "resources/light/like.png",
+                    "dark": "resources/dark/like.png"
+                }
+            },
+            {
+                "command": "leetcode.removeFavorite",
+                "title": "Remove from Favorite List",
+                "category": "LeetCode",
+                "icon": {
+                    "light": "resources/light/dislike.png",
+                    "dark": "resources/dark/dislike.png"
+                }
+            },
             {
                 "command": "leetcode.switchDefaultLanguage",
                 "title": "Switch Default Language",
@@ -178,18 +196,28 @@
             "view/item/context": [
                 {
                     "command": "leetcode.previewProblem",
-                    "when": "view == leetCodeExplorer && viewItem == problem",
+                    "when": "view == leetCodeExplorer && viewItem =~ /problem*/",
                     "group": "leetcode@1"
                 },
                 {
                     "command": "leetcode.showProblem",
-                    "when": "view == leetCodeExplorer && viewItem == problem",
+                    "when": "view == leetCodeExplorer && viewItem =~ /problem*/",
                     "group": "leetcode@2"
                 },
                 {
                     "command": "leetcode.showSolution",
-                    "when": "view == leetCodeExplorer && viewItem == problem",
+                    "when": "view == leetCodeExplorer && viewItem =~ /problem*/",
                     "group": "leetcode@3"
+                },
+                {
+                    "command": "leetcode.addFavorite",
+                    "when": "view == leetCodeExplorer && viewItem == problem",
+                    "group": "inline"
+                },
+                {
+                    "command": "leetcode.removeFavorite",
+                    "when": "view == leetCodeExplorer && viewItem == problem-favorite",
+                    "group": "inline"
                 }
             ],
             "commandPalette": [
@@ -204,6 +232,14 @@
                 {
                     "command": "leetcode.previewProblem",
                     "when": "never"
+                },
+                {
+                    "command": "leetcode.addFavorite",
+                    "when": "never"
+                },
+                {
+                    "command": "leetcode.removeFavorite",
+                    "when": "never"
                 }
             ],
             "explorer/context": [

src/commands/star.ts

@@ -0,0 +1,26 @@
+
+// Copyright (c) jdneo. All rights reserved.
+// Licensed under the MIT license.
+
+import { LeetCodeNode } from "../explorer/LeetCodeNode";
+import { leetCodeTreeDataProvider } from "../explorer/LeetCodeTreeDataProvider";
+import { leetCodeExecutor } from "../leetCodeExecutor";
+import { DialogType, promptForOpenOutputChannel } from "../utils/uiUtils";
+
+export async function addFavorite(node: LeetCodeNode): Promise<void> {
+    try {
+        await leetCodeExecutor.toggleFavorite(node, true);
+        leetCodeTreeDataProvider.refresh();
+    } catch (error) {
+        await promptForOpenOutputChannel("Failed to add the problem to favorite. Please open the output channel for details.", DialogType.error);
+    }
+}
+
+export async function removeFavorite(node: LeetCodeNode): Promise<void> {
+    try {
+        await leetCodeExecutor.toggleFavorite(node, false);
+        leetCodeTreeDataProvider.refresh();
+    } catch (error) {
+        await promptForOpenOutputChannel("Failed to remove the problem from favorite. Please open the output channel for details.", DialogType.error);
+    }
+}

src/explorer/LeetCodeTreeDataProvider.ts

@@ -38,13 +38,20 @@ export class LeetCodeTreeDataProvider implements vscode.TreeDataProvider<LeetCod
             };
         }
 
+        let contextValue: string;
+        if (element.isProblem) {
+            contextValue = element.isFavorite ? "problem-favorite" : "problem";
+        } else {
+            contextValue = element.id.toLowerCase();
+        }
+
         return {
             label: element.isProblem ? `[${element.id}] ${element.name}` : element.name,
             tooltip: this.getSubCategoryTooltip(element),
             collapsibleState: element.isProblem ? vscode.TreeItemCollapsibleState.None : vscode.TreeItemCollapsibleState.Collapsed,
-            contextValue: element.isProblem ? "problem" : element.id.toLowerCase(),
             iconPath: this.parseIconPathFromProblemState(element),
             command: element.isProblem ? element.previewCommand : undefined,
+            contextValue,
         };
     }
 

src/extension.ts

@@ -8,6 +8,7 @@ import { switchDefaultLanguage } from "./commands/language";
 import * as plugin from "./commands/plugin";
 import * as session from "./commands/session";
 import * as show from "./commands/show";
+import * as star from "./commands/star";
 import * as submit from "./commands/submit";
 import * as test from "./commands/test";
 import { explorerNodeManager } from "./explorer/explorerNodeManager";
@@ -61,6 +62,8 @@ export async function activate(context: vscode.ExtensionContext): Promise<void>
             vscode.commands.registerCommand("leetcode.testSolution", (uri?: vscode.Uri) => test.testSolution(uri)),
             vscode.commands.registerCommand("leetcode.submitSolution", (uri?: vscode.Uri) => submit.submitSolution(uri)),
             vscode.commands.registerCommand("leetcode.switchDefaultLanguage", () => switchDefaultLanguage()),
+            vscode.commands.registerCommand("leetcode.addFavorite", (node: LeetCodeNode) => star.addFavorite(node)),
+            vscode.commands.registerCommand("leetcode.removeFavorite", (node: LeetCodeNode) => star.removeFavorite(node)),
         );
 
         await leetCodeExecutor.switchEndpoint(plugin.getLeetCodeEndpoint());

src/leetCodeExecutor.ts

@@ -162,6 +162,14 @@ class LeetCodeExecutor implements Disposable {
         }
     }
 
+    public async toggleFavorite(node: IProblem, addToFavorite: boolean): Promise<void> {
+        const commandParams: string[] = [await this.getLeetCodeBinaryPath(), "star", node.id];
+        if (!addToFavorite) {
+            commandParams.push("-d");
+        }
+        await this.executeCommandWithProgressEx("Updating the favorite list...", "node", commandParams);
+    }
+
     public async getCompaniesAndTags(): Promise<{ companies: { [key: string]: string[] }, tags: { [key: string]: string[] } }> {
         // preprocess the plugin source
         const companiesTagsPath: string = path.join(await leetCodeExecutor.getLeetCodeRootPath(), "lib", "plugins", "company.js");