修复 previewProblem 命令不正常工作

跳过input验证 直接根据当前编辑器活动文件读取/判断题目id

Author: Yuelioi

src/commands/show.ts

@@ -23,9 +23,32 @@ import * as list from "./list";
 
 export async function previewProblem(input: IProblem | vscode.Uri, isSideMode: boolean = false): Promise<void> {
     let node: IProblem;
-    if (input instanceof vscode.Uri) {
-        const activeFilePath: string = input.fsPath;
-        const id: string = await getNodeIdFromFile(activeFilePath);
+    // I dont know why I use this command, it not work,maybe theproblem of "input"?
+    // 不知道为什么,当我直接使用这个命令,他并不会正常工作,也许input的问题
+    
+    //if (input instanceof vscode.Uri) {
+    // const activeFilePath: string = input.fsPath;
+    // const id: string = await getNodeIdFromFile(activeFilePath);
+    const editor = vscode.window.activeTextEditor;
+    let id:string;
+    
+    // * We can read file throught editor.document not fs
+    // * 我们可以直接用自带API读取文件内容,从而跳过input判断
+    const editor = vscode.window.activeTextEditor;
+    if (editor) {
+      let fileContent = editor.document.getText();
+      
+      const matchResults = fileContent.match(/@lc.+id=(.+?) /);
+      if (matchResults && matchResults.length === 2) {
+        id = matchResults[1];
+      }
+      
+
+      // Try to get id from file name if getting from comments failed
+      if (!id) {
+        id = path.basename(fsPath).split(".")[0];
+      }
+        
         if (!id) {
             vscode.window.showErrorMessage(`Failed to resolve the problem id from file: ${activeFilePath}.`);
             return;
@@ -38,9 +61,9 @@ export async function previewProblem(input: IProblem | vscode.Uri, isSideMode: b
         node = cachedNode;
         // Move the preview page aside if it's triggered from Code Lens
         isSideMode = true;
-    } else {
-        node = input;
-    }
+    // } else {
+    //     node = input;
+    // }
     const needTranslation: boolean = settingUtils.shouldUseEndpointTranslation();
     const descString: string = await leetCodeExecutor.getDescription(node.id, needTranslation);
     leetCodePreviewProvider.show(descString, node, isSideMode);