From ccef9aef854296aac9d46c8da0dbb222ff6f0af5 Mon Sep 17 00:00:00 2001
From: Ancient77 <76914086+Ancient77@users.noreply.github.com>
Date: Wed, 7 Jun 2023 14:06:10 +0200
Subject: [PATCH] Add second choice for unsupported default language and
 include --disable-extensions for extension debugging session

---
 .vscode/launch.json     |  4 +--
 src/commands/show.ts    | 76 +++++++++++++++++++++++++----------------
 src/leetCodeExecutor.ts |  6 ++--
 3 files changed, 52 insertions(+), 34 deletions(-)

diff --git a/.vscode/launch.json b/.vscode/launch.json
index 6f7862ec..8652c55e 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -7,7 +7,7 @@
             "type": "extensionHost",
             "request": "launch",
             "runtimeExecutable": "${execPath}",
-            "args": ["--extensionDevelopmentPath=${workspaceRoot}" ],
+            "args": ["--extensionDevelopmentPath=${workspaceRoot}", "--disable-extensions" ],
             "stopOnEntry": false,
             "sourceMaps": true,
             "outFiles": [ "${workspaceRoot}/out/src/**/*.js" ],
@@ -25,4 +25,4 @@
             "preLaunchTask": "npm"
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/src/commands/show.ts b/src/commands/show.ts
index 3aebce8f..3a6df865 100644
--- a/src/commands/show.ts
+++ b/src/commands/show.ts
@@ -132,45 +132,61 @@ async function fetchProblemLanguage(): Promise<string | undefined> {
     return language;
 }
 
-async function showProblemInternal(node: IProblem): Promise<void> {
-    try {
-        const language: string | undefined = await fetchProblemLanguage();
-        if (!language) {
-            return;
-        }
-
-        const leetCodeConfig: vscode.WorkspaceConfiguration = vscode.workspace.getConfiguration("leetcode");
-        const workspaceFolder: string = await selectWorkspaceFolder();
-        if (!workspaceFolder) {
-            return;
-        }
+async function createPath(language:string,node:IProblem):Promise<string>{
+    const leetCodeConfig: vscode.WorkspaceConfiguration = vscode.workspace.getConfiguration("leetcode");
+    const workspaceFolder: string = await selectWorkspaceFolder();
+    if (!workspaceFolder) {
+        Promise.reject("No workspace is opened.");
+    }
 
-        const fileFolder: string = leetCodeConfig
-            .get<string>(`filePath.${language}.folder`, leetCodeConfig.get<string>(`filePath.default.folder`, ""))
-            .trim();
-        const fileName: string = leetCodeConfig
-            .get<string>(
-                `filePath.${language}.filename`,
-                leetCodeConfig.get<string>(`filePath.default.filename`) || genFileName(node, language),
-            )
-            .trim();
+    const fileFolder: string = leetCodeConfig
+        .get<string>(`filePath.${language}.folder`, leetCodeConfig.get<string>(`filePath.default.folder`, ""))
+        .trim();
+    const fileName: string = leetCodeConfig
+        .get<string>(
+            `filePath.${language}.filename`,
+            leetCodeConfig.get<string>(`filePath.default.filename`) || genFileName(node, language),
+        )
+        .trim();
 
-        let finalPath: string = path.join(workspaceFolder, fileFolder, fileName);
+    let finalPath: string = path.join(workspaceFolder, fileFolder, fileName);
 
-        if (finalPath) {
-            finalPath = await resolveRelativePath(finalPath, node, language);
-            if (!finalPath) {
-                leetCodeChannel.appendLine("Showing problem canceled by user.");
-                return;
-            }
+    if (finalPath) {
+        finalPath = await resolveRelativePath(finalPath, node, language);
+        if (!finalPath) {
+            leetCodeChannel.appendLine("Showing problem canceled by user.");
+            Promise.reject("Showing problem canceled by user.");
         }
+    }
+
+    finalPath = wsl.useWsl() ? await wsl.toWinPath(finalPath) : finalPath;
+    return finalPath;
+}
 
-        finalPath = wsl.useWsl() ? await wsl.toWinPath(finalPath) : finalPath;
+async function showProblemInternal(node: IProblem): Promise<void> {
+    try {
+        let language: string | undefined = await fetchProblemLanguage();
+        if (!language) {
+            return;
+        }
+        let finalPath: string = await createPath(language,node);
 
         const descriptionConfig: IDescriptionConfiguration = settingUtils.getDescriptionConfiguration();
         const needTranslation: boolean = settingUtils.shouldUseEndpointTranslation();
+        try {
+            await leetCodeExecutor.showProblem(node, language, finalPath, descriptionConfig.showInComment, needTranslation);
+        } catch (e) {
+            if (e instanceof Error) {
+                //this shows all languages, not just the ones, which are supported for this specific problem
+                language = await vscode.window.showQuickPick(languages, { placeHolder: "This problem is not supporting your default language, please choose another", ignoreFocusOut: true });
+                if (language === undefined) { throw e; }
 
-        await leetCodeExecutor.showProblem(node, language, finalPath, descriptionConfig.showInComment, needTranslation);
+                finalPath = await createPath(language,node);
+                await leetCodeExecutor.showProblem(node, language, finalPath, descriptionConfig.showInComment, needTranslation);
+            } else {
+                throw e;
+            }
+        }
         const promises: any[] = [
             vscode.window.showTextDocument(vscode.Uri.file(finalPath), { preview: false, viewColumn: vscode.ViewColumn.One }),
             promptHintMessage(
diff --git a/src/leetCodeExecutor.ts b/src/leetCodeExecutor.ts
index d2332c7a..48a54165 100644
--- a/src/leetCodeExecutor.ts
+++ b/src/leetCodeExecutor.ts
@@ -107,10 +107,12 @@ class LeetCodeExecutor implements Disposable {
         if (!needTranslation) {
             cmd.push("-T"); // use -T to force English version
         }
-
+        const codeTemplate: string = await this.executeCommandWithProgressEx("Fetching problem data...", this.nodeExecutable, cmd)
+        if(codeTemplate === undefined) {
+           throw new Error("language not supported");
+        }
         if (!await fse.pathExists(filePath)) {
             await fse.createFile(filePath);
-            const codeTemplate: string = await this.executeCommandWithProgressEx("Fetching problem data...", this.nodeExecutable, cmd);
             await fse.writeFile(filePath, codeTemplate);
         }
     }

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