feat: add daily challenge category and implement related node retrieval

src/explorer/LeetCodeTreeDataProvider.ts

@@ -85,6 +85,8 @@ export class LeetCodeTreeDataProvider implements vscode.TreeDataProvider<LeetCod
                     return explorerNodeManager.getAllTagNodes();
                 case Category.Company:
                     return explorerNodeManager.getAllCompanyNodes();
+                case Category.Daily:
+                    return explorerNodeManager.getDailyChallengeNode();
                 default:
                     if (element.isProblem) {
                         return [];

src/explorer/explorerNodeManager.ts

@@ -8,6 +8,7 @@ import { getSortingStrategy } from "../commands/plugin";
 import { Category, defaultProblem, ProblemState, SortingStrategy } from "../shared";
 import { shouldHideSolvedProblem } from "../utils/settingUtils";
 import { LeetCodeNode } from "./LeetCodeNode";
+import { queryDailyChallenge } from "../request/query-daily-challange";
 
 class ExplorerNodeManager implements Disposable {
     private explorerNodeMap: Map<string, LeetCodeNode> = new Map<string, LeetCodeNode>();
@@ -53,6 +54,10 @@ class ExplorerNodeManager implements Disposable {
                 id: Category.Favorite,
                 name: Category.Favorite,
             }), false),
+            new LeetCodeNode(Object.assign({}, defaultProblem, {
+                id: Category.Daily,
+                name: Category.Daily,
+            }), false)
         ];
     }
 
@@ -148,6 +153,11 @@ class ExplorerNodeManager implements Disposable {
         return this.applySortingStrategy(res);
     }
 
+    public async getDailyChallengeNode(): Promise<LeetCodeNode[]> {
+        const dailyChallengeID: string = await queryDailyChallenge();
+        return this.getNodeById(dailyChallengeID) ? [this.getNodeById(dailyChallengeID)!] : [];
+    }
+
     public dispose(): void {
         this.explorerNodeMap.clear();
         this.companySet.clear();

src/shared.ts

@@ -102,6 +102,7 @@ export enum Category {
     Tag = "Tag",
     Company = "Company",
     Favorite = "Favorite",
+    Daily = "Daily Challenge"
 }
 
 export const supportedPlugins: string[] = ["company", "solution.discuss", "leetcode.cn"];