Course Enrollment

// Bulk enroll students
async function enrollStudents(csvData) {
  const enrollments = parseCSV(csvData);
  const results = { success: 0, errors: [] };
  
  for (const enrollment of enrollments) {
    try {
      // Validate student exists
      const student = await getStudent(enrollment.studentEmail);
      if (!student) {
        throw new Error('Student not found');
      }
      
      // Validate course exists
      const course = await getCourse(enrollment.courseId);
      if (!course) {
        throw new Error('Course not found');
      }
      
      // Create enrollment
      await createEnrollment({
        studentId: student.id,
        courseId: enrollment.courseId,
        enrollmentDate: new Date(enrollment.enrollmentDate),
        accessLevel: enrollment.accessLevel,
        status: enrollment.status,
        expiryDate: enrollment.expiryDate ? new Date(enrollment.expiryDate) : null
      });
      
      results.success++;
    } catch (error) {
      results.errors.push({
        email: enrollment.studentEmail,
        courseId: enrollment.courseId,
        error: error.message
      });
    }
  }
  
  return results;
}