private IEnumerable<MailMessage> GetStudentEmails(IEmailManager emailManager)
{
IEnumerable<Student> students = _studentManager.LoadAll(_dataFile);
foreach (Student student in students)
{
Requirements studentRequirements = _studentManager.DetermineRequirements(student.Courses);
Requirements emailRequirements = _studentManager.DetermineEmails(student, studentRequirements, _cutOff);
if (studentRequirements.HasFlag(Requirements.Practicum))
{
emailRequirements |= Requirements.Practicum;
}
if (emailRequirements != Requirements.None && emailRequirements != Requirements.Practicum)
{
yield return emailManager.GenerateEmail(student, emailRequirements);
}
}
}
