const Tesseract = require('tesseract.js');
const path = require('path');

exports.extractPanText = async (req, res) => {
  try {
    if (!req.files || !req.files.pan_document) {
      return res.status(400).json({ error: 'PAN document is required' });
    }
    const panDocPath = req.files.pan_document[0].path;

    const result = await Tesseract.recognize(
      panDocPath,
      'eng',
      { logger: m => console.log(m) }
    );

    const extractedText = result.data.text;
    // TODO: You can add regex here to specifically extract PAN number if needed

    res.json({ extractedText });
  } catch (err) {
    console.error('PAN Extraction Error:', err);
    res.status(500).json({ error: 'Failed to extract PAN text' });
  }
};