====== 📥 Batched PDF to HTML Conversion (Google Apps Script) ======

This guide allows you to convert PDFs in a Google Drive folder to HTML files in **batches** using Google Apps Script. It overcomes timeout issues by tracking which files are already processed and converting only a few per run.

===== 📁 Folder Setup =====
1. Place all the PDFs you want to convert in a Google Drive folder.
2. Share this folder with your Google account used for Apps Script.
3. This script will create a new folder (e.g., `MyFolder_html`) next to your original and store the converted `.html` files there.

===== 🛠️ Script: Batched PDF Conversion with Resume Support =====

<code javascript>
function convertPdfsToHtml_Batched() {
  const BATCH_SIZE = 5;  // Process 5 files per run
  const originalFolderId = 'YOUR_FOLDER_ID_HERE';
  const originalFolder = DriveApp.getFolderById(originalFolderId);
  const newFolderName = originalFolder.getName() + '_html';

  let newFolder;
  const folders = DriveApp.getFoldersByName(newFolderName);
  newFolder = folders.hasNext() ? folders.next() : DriveApp.createFolder(newFolderName);
  Logger.log('Using folder: ' + newFolder.getName());

  const processed = PropertiesService.getScriptProperties().getProperties();
  const files = originalFolder.getFilesByType(MimeType.PDF);
  let processedCount = 0;

  while (files.hasNext() && processedCount < BATCH_SIZE) {
    const file = files.next();
    const fileId = file.getId();
    
    if (processed[fileId]) {
      Logger.log('Skipping already processed: ' + file.getName());
      continue;
    }

    try {
      Logger.log('Processing PDF: ' + file.getName());
      const pdfBlob = file.getBlob();

      const convertedFile = Drive.Files.insert({
        title: file.getName(),
        mimeType: MimeType.GOOGLE_DOCS
      }, pdfBlob);

      const doc = DocumentApp.openById(convertedFile.id);
      const docContent = doc.getBody().getText();
      const htmlFileName = file.getName().replace('.pdf', '.html');
      newFolder.createFile(htmlFileName, docContent, MimeType.HTML);

      Logger.log('✅ Converted and created: ' + htmlFileName);
      DriveApp.getFileById(convertedFile.id).setTrashed(true);

      PropertiesService.getScriptProperties().setProperty(fileId, 'done');
      processedCount++;

    } catch (e) {
      Logger.log('Error converting: ' + file.getName() + ' – ' + e.message);
    }
  }

  Logger.log(`Batch complete: ${processedCount} file(s) processed`);
}
</code>

===== ▶️ How to Use =====
1. Go to https://script.google.com and open or create a project.
2. Paste the code into a new `.gs` file.
3. Replace `'YOUR_FOLDER_ID_HERE'` with your actual Drive folder ID.
4. Run `convertPdfsToHtml_Batched`.

===== 🔁 Optional: Set Up Trigger for Automation =====
- Go to *Triggers* in Apps Script
- Click "Add Trigger"
- Choose:
  - Function: `convertPdfsToHtml_Batched`
  - Event: *Time-driven* → *Every 5 minutes*
- Save

This ensures your batch runs repeatedly and continues until all files are converted.

===== ✅ Notes =====
- The script avoids reprocessing by tracking completed files with `PropertiesService`.
- You can increase or decrease `BATCH_SIZE` to suit your needs.
</code>