2026-04-21T17-24-25Z__iter_02

import * as vscode from "vscode";
import * as aws from "aws-sdk";

export function activate(context: vscode.ExtensionContext) {
  const disposable = vscode.commands.registerCommand(
    "qrcode-extension.openQRCodePanel",
    () => {
      // 1) Create the webview as before
      const panel = vscode.window.createWebviewPanel(
        "qrCodePanel",
        "QR Code + Data Viewer",
        vscode.ViewColumn.One,
        { enableScripts: true }
      );

      // 2) Generate a session ID
      const sessionId = Date.now().toString();

      // 3) Notify server about this session
      fetch("ht…

```json
{
  "stitched_response": "```javascript\nimportimport * as vscode from \"vscode\";\nimport"vscode";
import * as aws from \"aws-sdk\";\n\nexport"aws-sdk";

export function activate(context: vscode.ExtensionContext) {\n  {
  const disposable = vscode.commands.registerCommand(\n    \"qrcode-extension.openQRCodePanel\",\n    vscode.commands.registerCommand(
    "qrcode-extension.openQRCodePanel",
    () => {\n      {
      // 1) Create the webview as before\n      before
      const panel = vscode.window.createWebviewPanel(\n        \"qrCodePanel\",\n        \"QRvscode.window.createWebviewPanel(
        "qrCodePanel",
        "QR Code + Data Viewer\",\n        vscode.ViewColumn.One,\n        Viewer",
        vscode.ViewColumn.One,
        { enableScripts: true }\n      );\n\n      }
      );

      // 2) Generate a session ID\n      ID
      const sessionId = Date.now().toString();\n\n      Date.now().toString();

      // 3) Notify server about this session\n      fetch(\"http://localhost:3000/init-session\", {\n        method: \"POST\",\n        headers: { \"Content-Type\": \"application/json\" },\n        session
      fetch("http://localhost:3000/init-session", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({ sessionId }),\n      }),
      }).catch((err) => {\n        console.error(\"Failed{
        console.error("Failed to init session with server:\", err);\n      });\n\n      server:", err)
      });

      // 4) Provide minimal HTML that shows the QR code and polls for scan\n      scan
      panel.webview.html = getWebviewContent(sessionId);\n\n      getWebviewContent(sessionId);

      // 5) Listen for messages FROM the webview\n      webview
      panel.webview.onDidReceiveMessage(async (message) => {\n        try { // Outer try for onDidReceiveMessage handler\n          {
        if (message.command === \"scanned\") {\n            "scanned") {
          const { s3Url } = message;\n            message;
          try { // Inner try for the \"scanned\" command logic\n              
            // Fetch the file from S3 (public or private)\n              private)
            const fileContent = await fetchFromPublicS3Url(s3Url);\n\n              fetchFromPublicS3Url(s3Url);

            // Extract the base name (no extension) from the S3 URL\n              URL
            const baseName = pickBaseFilenameNoExtension(s3Url);\n              pickBaseFilenameNoExtension(s3Url);
            // e.g. \"22_generate_parenthesis\""22_generate_parenthesis" from \"22_generate_parenthesis.py\"\n\n              "22_generate_parenthesis.py"

            // Create an untitled document with no extension\n              extension
            // e.g. \"untitled:22_generate_parenthesis\"\n              "untitled:22_generate_parenthesis"
            const untitledUri = vscode.Uri.parse(\n                `untitled:${baseName}`\n              );\n\n              vscode.Uri.parse(
                `untitled:${baseName}`
            );

            // Open the doc\n              doc
            const doc = await vscode.workspace.openTextDocument(\n                untitledUri\n              );\n              vscode.workspace.openTextDocument(
                untitledUri
            );
            const editor = await vscode.window.showTextDocument(\n                doc\n              );\n\n              vscode.window.showTextDocument(
                doc
            );

            // Paste the content\n              content
            await editor.edit((editBuilder) => {\n                editBuilder.insert(\n                  new vscode.Position(0, 0),\n                  fileContent\n                );\n              });\n\n              {
                editBuilder.insert(
                    new vscode.Position(0, 0),
                    fileContent
                );
            });

            // Optionally close the panel\n              panel.dispose();\n            panel
            panel.dispose();
          } catch (err) { // Catch for inner try block (scanned command)\n              console.error(err);\n            }\n          } // Closes if (message.command === \"scanned\")\n        } catch (err) { // Catch for outer try block (onDidReceiveMessage)\n          console.error(\n            \"[Extension] Error fetching data from S3: \",\n            err\n          );\n          vscode.window.showErrorMessage(\n            \"Failed to load file from S3.\"\n          );\n        }\n      }); // Closes panel.webview.onDidReceiveMessage\n    } // Closes () => { for openQRCodePanel\n  );\n  context.subscriptions.push(disposable);\n} // Closes activate function\n\n//
            console.error(
                "[Extension] Error fetching data from S3: ",
                err
            );
            vscode.window.showErrorMessage(
                "Failed to load file from S3."
            );
          }
        }
      });
    }
  );

  context.subscriptions.push(disposable);
}

// Fetch from public S3 URL\nasyncURL
async function fetchFromPublicS3Url(url: string): Promise<string> {\n  {
    const response = await fetch(url);\n  fetch(url);
    if (!response.ok) {\n    {
        throw new Error(`Fetch to ${url} returned status ${response.status}`);\n  }\n  return response.text();\n}\n\n/**\n ${response.status}`);
    }
    return response.text();
}

/**
 * Extract the final filename from the S3 URL, then remove the extension.\n extension.
 * e.g. \"https://bucket.s3.amazonaws.com/foo/bar/22_generate_parenthesis.py\"\n "https://bucket.s3.amazonaws.com/foo/bar/22_generate_parenthesis.py"
 * -> \"22_generate_parenthesis\"\n */\nfunction"22_generate_parenthesis"
 */
function pickBaseFilenameNoExtension(url: string): string {\n  try {\n    {
    try {
        const lastPart = url.split(\"/\").pop()url.split("/").pop() ?? \"untitledFile\";\n    "untitledFile";
        // Remove dot extension if present\n    present
        // This regex removes the last .xyz portion, if any\n    any
        const baseName = lastPart.replace(/\\.[^.]*$/, \"\");\n    lastPart.replace(/\.[^.]*$/, "");
        return baseName || \"untitledFile\";\n  "untitledFile";
    } catch {\n    return \"untitledFile\";\n  }\n}\n\n// Minimal HTML\nfunction getWebviewContent(sessionId: string): string {\n  return `\n    <!DOCTYPE html>\n    <html>\n    <head>\n      <meta charset=\"UTF-8\" />\n      <title>QR Code Demo</title>\n      <script src=\"https://cdn.jsdelivr.net/npm/qrcode@1.5.1/build/qrcode.min.js\"></script>\n    </head>\n    <body>\n      <h2>My QR Code (Session: ${sessionId})</h2>\n      <canvas id=\"qrcode\"></canvas>\n      <div id=\"status\"></div>\n      <script>\n        {
        return "untitledFile";
    }
}

// Minimal HTML
function getWebviewContent(sessionId: string): string {
  return `
    <!DOCTYPE html>
    <html>
    <head>
      <meta charset="UTF-8" />
      <title>QR Code Demo</title>
      <script src="https://cdn.jsdelivr.net/npm/qrcode@1.5.1/build/qrcode.min.js"></script>
    </head>
    <body>
      <h2>My QR Code (Session: ${sessionId})</h2>
      <canvas id="qrcode"></canvas>
      <div id="status"></div>
      <script>
        const vscode = acquireVsCodeApi();\n        acquireVsCodeApi();
        const sessionId = \"${sessionId}\";\n\n        "${sessionId}";

        QRCode.toCanvas(document.getElementById('qrcode'), sessionId, (err) => {\n          {
          if (err) console.error(err);\n          console.log(\"QR code rendered!\");\n        });\n\n        async function checkForScan() {\n          try {\n            const res = await fetch(\"http://localhost:3000/check-scan\", {\n              method: \"POST\",\n              headers: { \"Content-Type\": \"application/json\" },\n              console.error(err);
          console.log("QR code rendered!");
        });

        async function checkForScan() {
          try {
            const res = await fetch("http://localhost:3000/check-scan", {
              method: "POST",
              headers: { "Content-Type": "application/json" },
              body: JSON.stringify({ sessionId }),\n            });\n            }),
            });
            const data = await res.json();\n            res.json();
            if (data.scanned) {\n              document.getElementById(\"status\").innerText{
              document.getElementById("status").innerText = \"Scanned!"Scanned! Opening file...\";\n              vscode.postMessage({\n                command: \"scanned\",\n                s3Url: data.s3Url,\n              });\n            file...";
              vscode.postMessage({
                command: "scanned",
                s3Url: data.s3Url,
              });
            } else {\n              document.getElementById(\"status\").innerText{
              document.getElementById("status").innerText = \"Not"Not scanned yet. Polling again in 5s...\";\n              setTimeout(checkForScan, 5000);\n            }\n          5s...";
              setTimeout(checkForScan, 5000);
            }
          } catch (err) {\n            console.error(err);\n            document.getElementById(\"status\").innerText{
            console.error(err);
            document.getElementById("status").innerText = \"Error"Error polling server. Retrying in 5s...\";\n            setTimeout(checkForScan, 5000);\n          }\n        }\n\n        checkForScan();\n      </script>\n    </body>\n    </html>\n  `;\n}\n```",
  "additional_notes": "The document was reconstructed by identifying overlapping lines between consecutive OCR frames and removing duplicates. Significant effort was made to correct indentation to conform to standard JavaScript/TypeScript practices, especially for nested blocks and HTML string literals. Several OCR errors were inferred and corrected for logical and syntactical validity:\n\n1.  **Function Name Consistency**: The function `nickBaseFilenameNoExtension` (seen in frames 0.0s, 1.0s, 2.0s) was corrected to `pickBaseFilenameNoExtension` at its call site. This was done because subsequent frames (3.0s onwards) and the function's definition consistently use `pickBaseFilenameNoExtension`. This correction ensures the code is syntactically valid and consistent with the function's definition.\n2.  **`getWebviewContent` Case**: The function `getWebViewContent` (capital 'V' in frames 16.0s, 17.0s) was standardized to `getWebviewContent` (lowercase 'v') to match its call site in the `activate` function and more consistent occurrences in other frames containing the HTML content. This is likely an OCR misinterpretation of the casing.\n3.  **HTML String Literal**: In frame 22.0s, `return (` was identified as an OCR error and corrected to `return \`` to correctly initiate the multiline HTML string literal.\n4.  **Try-Catch Structure Inference**: The `onDidReceiveMessage` handler's `try-catch` blocks required significant inference. Frames 9.0s and 10.0s/11.0s presented different `catch` block structures. The final reconstruction incorporates a nested `try-catch`: an inner one specifically for the `if (message.command === \"scanned\")` block's S3 operations, and an outer `try-catch` encompassing the entire `onDidReceiveMessage` callback to handle broader errors, based on the `[Extension] Error...` messages in later frames. This required adding an explicit `try {` around the `if` statement and adjusting the scope of the catch blocks.\n5.  **Redundant Closing Braces**: Several frames, especially 13.0s, contained redundant or misplaced closing braces (`});})`) which were filtered out as OCR noise or partial/misaligned text captures. The final structure adheres to proper JavaScript scoping."
}
```5s...";
            setTimeout(checkForScan, 5000);
          }
        }

        checkForScan();
      </script>
    </body>
    </html>
`;
}