def emailAboutBooksIfNecessary(self, toAccount, fromAccount, books):
overdueBooks = []
dueTodayBooks = []
for dueDate in books:
if datetime.strptime(dueDate, "%m/%d/%Y").date() < date.today():
for book in books[dueDate]:
overdueBooks.append({'dueDate': dueDate, 'book': book})
if datetime.strptime(dueDate, "%m/%d/%Y").date() == date.today():
for book in books[dueDate]:
dueTodayBooks.append(book)
if len(overdueBooks) > 0 or len(dueTodayBooks) > 0:
es = EmailSender()
dueTodayString = ""
overdueString = ""
if len(dueTodayBooks) > 0:
dueTodayString = "%d book%s due today" % (len(dueTodayBooks), "s" if len(dueTodayBooks) > 0 else "")
if len(overdueBooks) > 0:
overdueString = "%d book%s overdue" % (len(overdueBooks), "s" if len(overdueBooks) > 0 else "")
summaryString = ""
subjectString = ""
if len(dueTodayBooks) > 0 and len(overdueBooks) > 0:
summaryString = "%s and %s" % (dueTodayString, overdueString)
else:
summaryString = "%s%s" % (dueTodayString, overdueString)
subject = message = "There %s %s at the library!" % ("is" if len(dueTodayBooks) + len(overdueBooks) == 1 else "are", summaryString, )
message += "\n"
if len(dueTodayBooks) > 0:
booksDueTodayString = "Due today:\n"
for book in dueTodayBooks:
booksDueTodayString += "%s %s\n" % (book["title"], book["author"])
message += booksDueTodayString
if len(overdueBooks) > 0:
overdueBooksString = "Overdue:\n"
for bookStruct in overdueBooks:
overdueBooksString += "%s %s - Due: %s\n" % (bookStruct["book"]["title"], bookStruct["book"]["author"], bookStruct["dueDate"])
message += overdueBooksString
es.sendEmail(toAccount, fromAccount, subject, message)
