From 9874e8247ad60053b3887b0b429b709b5910f321 Mon Sep 17 00:00:00 2001
From: pujiaxun <pujiaxun@meituan.com>
Date: Wed, 20 Feb 2019 13:09:54 +0800
Subject: [PATCH 1/4] Add tooltips for sub-category folder

---
 src/explorer/LeetCodeTreeDataProvider.ts | 31 ++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/src/explorer/LeetCodeTreeDataProvider.ts b/src/explorer/LeetCodeTreeDataProvider.ts
index 83a97534..0da63e97 100644
--- a/src/explorer/LeetCodeTreeDataProvider.ts
+++ b/src/explorer/LeetCodeTreeDataProvider.ts
@@ -46,6 +46,7 @@ export class LeetCodeTreeDataProvider implements vscode.TreeDataProvider<LeetCod
         const idPrefix: number = Date.now();
         return {
             label: element.isProblem ? `[${element.id}] ${element.name}` : element.name,
+            tooltip: this.getSubCategoryTooltip(element),
             id: `${idPrefix}.${element.parentName}.${element.id}`,
             collapsibleState: element.isProblem ? vscode.TreeItemCollapsibleState.None : vscode.TreeItemCollapsibleState.Collapsed,
             contextValue: element.isProblem ? "problem" : element.id.toLowerCase(),
@@ -168,6 +169,36 @@ export class LeetCodeTreeDataProvider implements vscode.TreeDataProvider<LeetCod
         }
     }
 
+    private getSubCategoryTooltip(element: LeetCodeNode): string {
+        // return '' unless it is a sub-category node
+        if (element.isProblem || !this.treeData[element.parentName]) {
+            return "";
+        }
+
+        const problems: IProblem[] = this.treeData[element.parentName].get(element.id);
+
+        let numAC: number = 0;
+        let numNotAC: number = 0;
+        let numUnknown: number = 0;
+        for (const prob of problems) {
+            switch (prob.state) {
+                case ProblemState.AC:
+                    numAC++;
+                    break;
+                case ProblemState.NotAC:
+                    numNotAC++;
+                    break;
+                case ProblemState.Unknown:
+                    numUnknown++;
+                    break;
+                default:
+                    break;
+            }
+        }
+
+        return `AC: ${numAC}\nNot AC: ${numNotAC}\nUnknown: ${numUnknown}\nTotal: ${problems.length}`;
+    }
+
     private addProblemToTreeData(problem: IProblem): void {
         this.putProblemToMap(this.treeData.Difficulty, problem.difficulty, problem);
         for (const tag of problem.tags) {

From 5f461d241a38375efab68733135c17919e17e218 Mon Sep 17 00:00:00 2001
From: pujiaxun <pujiaxun@meituan.com>
Date: Wed, 20 Feb 2019 14:19:08 +0800
Subject: [PATCH 2/4] Use os.EOL instead of \n

---
 src/explorer/LeetCodeTreeDataProvider.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/explorer/LeetCodeTreeDataProvider.ts b/src/explorer/LeetCodeTreeDataProvider.ts
index 0da63e97..de8f974b 100644
--- a/src/explorer/LeetCodeTreeDataProvider.ts
+++ b/src/explorer/LeetCodeTreeDataProvider.ts
@@ -1,6 +1,7 @@
 // Copyright (c) jdneo. All rights reserved.
 // Licensed under the MIT license.
 
+import * as os from "os";
 import * as path from "path";
 import * as vscode from "vscode";
 import * as list from "../commands/list";
@@ -196,7 +197,12 @@ export class LeetCodeTreeDataProvider implements vscode.TreeDataProvider<LeetCod
             }
         }
 
-        return `AC: ${numAC}\nNot AC: ${numNotAC}\nUnknown: ${numUnknown}\nTotal: ${problems.length}`;
+        return [
+            `AC: ${numAC}`,
+            `Not AC: ${numNotAC}`,
+            `Unknown: ${numUnknown}`,
+            `Total: ${problems.length}`,
+        ].join(os.EOL);
     }
 
     private addProblemToTreeData(problem: IProblem): void {

From ce3ad2320460e76c9dc56b7fd1741130c09b143d Mon Sep 17 00:00:00 2001
From: pujiaxun <pujiaxun@meituan.com>
Date: Wed, 20 Feb 2019 14:47:03 +0800
Subject: [PATCH 3/4] replace 'Not AC' by 'Failed'; delete 'unknown'

---
 src/explorer/LeetCodeTreeDataProvider.ts | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/explorer/LeetCodeTreeDataProvider.ts b/src/explorer/LeetCodeTreeDataProvider.ts
index de8f974b..388f43a8 100644
--- a/src/explorer/LeetCodeTreeDataProvider.ts
+++ b/src/explorer/LeetCodeTreeDataProvider.ts
@@ -180,7 +180,6 @@ export class LeetCodeTreeDataProvider implements vscode.TreeDataProvider<LeetCod
 
         let numAC: number = 0;
         let numNotAC: number = 0;
-        let numUnknown: number = 0;
         for (const prob of problems) {
             switch (prob.state) {
                 case ProblemState.AC:
@@ -189,9 +188,6 @@ export class LeetCodeTreeDataProvider implements vscode.TreeDataProvider<LeetCod
                 case ProblemState.NotAC:
                     numNotAC++;
                     break;
-                case ProblemState.Unknown:
-                    numUnknown++;
-                    break;
                 default:
                     break;
             }
@@ -199,8 +195,7 @@ export class LeetCodeTreeDataProvider implements vscode.TreeDataProvider<LeetCod
 
         return [
             `AC: ${numAC}`,
-            `Not AC: ${numNotAC}`,
-            `Unknown: ${numUnknown}`,
+            `Failed: ${numNotAC}`,
             `Total: ${problems.length}`,
         ].join(os.EOL);
     }

From 7e30dacd436b79ff3812fe8c535ff9838592f2a0 Mon Sep 17 00:00:00 2001
From: pujiaxun <pujiaxun@meituan.com>
Date: Wed, 20 Feb 2019 15:08:47 +0800
Subject: [PATCH 4/4] vars rename

---
 src/explorer/LeetCodeTreeDataProvider.ts | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/explorer/LeetCodeTreeDataProvider.ts b/src/explorer/LeetCodeTreeDataProvider.ts
index 388f43a8..25ebbb8b 100644
--- a/src/explorer/LeetCodeTreeDataProvider.ts
+++ b/src/explorer/LeetCodeTreeDataProvider.ts
@@ -178,15 +178,15 @@ export class LeetCodeTreeDataProvider implements vscode.TreeDataProvider<LeetCod
 
         const problems: IProblem[] = this.treeData[element.parentName].get(element.id);
 
-        let numAC: number = 0;
-        let numNotAC: number = 0;
+        let acceptedNum: number = 0;
+        let failedNum: number = 0;
         for (const prob of problems) {
             switch (prob.state) {
                 case ProblemState.AC:
-                    numAC++;
+                    acceptedNum++;
                     break;
                 case ProblemState.NotAC:
-                    numNotAC++;
+                    failedNum++;
                     break;
                 default:
                     break;
@@ -194,8 +194,8 @@ export class LeetCodeTreeDataProvider implements vscode.TreeDataProvider<LeetCod
         }
 
         return [
-            `AC: ${numAC}`,
-            `Failed: ${numNotAC}`,
+            `AC: ${acceptedNum}`,
+            `Failed: ${failedNum}`,
             `Total: ${problems.length}`,
         ].join(os.EOL);
     }