extractDriverLicense static method

Implementation

static Future<IDCardInfo> extractDriverLicense(List<String> lines) async {
  String? idNumber;
  String? firstName;
  String? lastName;
  String? middleName;
  String? dob;
  String? extracteddetails;

  // 1. ID Number Extraction
  for (final line in lines) {
    final upperLine = line.toUpperCase().trim();
    final match = RegExp(r'(?:L/NO|LNO\.?)\s*([A-Z]{3}\d+[A-Z]+\d*)').firstMatch(upperLine);
    if (match != null) {
      idNumber = match.group(1)?.replaceAll(RegExp(r'\s'), '');
      break;
    }
  }
  if (idNumber == null) {
    for (final line in lines) {
      final text = line.toUpperCase();
      if (text.contains('L/NO') || text.startsWith('LNO')) {
        final match = RegExp(r'([A-Z0-9]{10,})').firstMatch(line.replaceAll(' ',''));
        if (match != null) {
          idNumber = match.group(0);
          break;
        }
      }
    }
  }

  // 2. Name Extraction (Independent Step)
  for (final line in lines) {
    if(extracteddetails == null){
      extracteddetails = line;
    }else{
      extracteddetails += " ***videx*** " + line;
    }
    final upper = line.toUpperCase();
    // Look for "LASTNAME, FIRSTNAME MIDDLE..."
    if (RegExp(r'^[A-Z, ]+$').hasMatch(upper) && upper.contains(',')) {
      final parts = upper.split(',');
      if (parts.length > 1) {
        lastName = parts[0].trim();
        final nameParts = parts[1].trim().split(RegExp(r'\s+'));
        if (nameParts.isNotEmpty) {
          firstName = nameParts[0];
          if (nameParts.length > 1) {
            middleName = nameParts.sublist(1).join(' ');
          }
        }
        // Once name is found, we can break
        if(lastName.isNotEmpty && firstName != null && firstName.isNotEmpty) break;
      }
    }
  }

  // 3. DOB Extraction (Independent Step)
  final dobLabelRegex = RegExp(r'(D\s*OF\s*[B8]|DOB|DOR|DOTB|O\s*OF|OOF|D\s*O\s*B|Dor|Dof|Oor|or\s*8|D\s*of\s*8)', caseSensitive: false);
  final dateRegex = RegExp(r'(\d{2})[\s\-/]+(\d{2})[\s\-/]+(\d{4})');

  for (int i = 0; i < lines.length; i++) {
    String searchArea = lines[i];

    if (i + 1 < lines.length) {
      searchArea += " " + lines[i+1];
    }

    if (dobLabelRegex.hasMatch(searchArea)) {
      final dateMatch = dateRegex.firstMatch(searchArea);
      if (dateMatch != null) {
        dob = '${dateMatch.group(1)}-${dateMatch.group(2)}-${dateMatch.group(3)}';
        break;
      }
    }
  }

  return IDCardInfo(
    firstName: firstName,
    lastName: lastName,
    middleName: middleName,
    dateOfBirth: dob,
    idNumber: idNumber,
  );
}