add outputPath Config

package.json

@@ -247,6 +247,12 @@
                             "leetcode-cn"
                         ],
                         "description": "Endpoint of the user account."
+                    },
+                    "leetcode.outputPath": {
+                        "type": "string",
+                        "default": "",
+                        "scope": "application",
+                        "description": "Specifies the relative path to save the problem files."
                     }
                 }
             }

src/commands/show.ts

@@ -39,6 +39,7 @@ export async function searchProblem(): Promise<void> {
 
 async function showProblemInternal(id: string): Promise<void> {
     try {
+        const listProblems: IProblem[] = await list.listProblems();
         const leetCodeConfig: vscode.WorkspaceConfiguration = vscode.workspace.getConfiguration("leetcode");
         let defaultLanguage: string | undefined = leetCodeConfig.get<string>("defaultLanguage");
         if (defaultLanguage && languages.indexOf(defaultLanguage) < 0) {
@@ -49,7 +50,34 @@ async function showProblemInternal(id: string): Promise<void> {
             return;
         }
 
-        const outDir: string = await selectWorkspaceFolder();
+        let outDir: string = await selectWorkspaceFolder();
+        const outputPath: string = leetCodeConfig.get<string>("outputPath") || "";
+        const problem: IProblem | undefined = listProblems.find((item: IProblem) => item.id === id);
+        switch (outputPath) {
+            case "": {
+                break;
+            }
+            case "${tag}": {
+                if (problem) {
+                    outDir = `${outDir}/${problem.tags[0]}`;
+                }
+                break;
+            }
+            case "${language}": {
+                outDir = `${outDir}/${language}`;
+                break;
+            }
+            case "${difficulty}": {
+                if (problem) {
+                    outDir = `${outDir}/${problem.difficulty}`;
+                }
+                break;
+            }
+            default: {
+                outDir = `${outDir}/${outputPath}`;
+                break;
+            }
+        }
         await fse.ensureDir(outDir);
         const result: string = await leetCodeExecutor.showProblem(id, language, outDir);
         const reg: RegExp = /\* Source Code:\s*(.*)/;