website/views/reminders.py (1)

34-74: 🛠️ Refactor suggestion

Improve robustness of check_reminder_status logic.

The function has a good overall structure but contains some issues that could lead to runtime errors:

1. The field name mismatch mentioned above
2. The timezone handling with DateField values
3. No explicit return value when a reminder is needed
4. No handling for timezone-aware requirements of Django

Consider restructuring the function to more clearly handle these cases:

@login_required
def check_reminder_status(request):
    """
    View to check if a user needs a reminder based on their settings and last check-in.
    This is used by the management command to determine who needs reminders.
    """
    # Default assumption: no reminder needed
    needs_reminder = False
    
    try:
        # Check if user has active reminder settings
        settings = ReminderSettings.objects.get(user=request.user)
        if not settings.is_active:
            return False
            
        # Get user's timezone
        user_tz = pytz.timezone(settings.timezone)
        now = timezone.now().astimezone(user_tz)
        
        # Check if user has already checked in today
        try:
            profile = UserProfile.objects.get(user=request.user)
            last_check_in = profile.last_check_in
            
            # If user has checked in today, no reminder needed
            if last_check_in and last_check_in == now.date():
                return False
                
        except UserProfile.DoesNotExist:
            # No profile means we don't know if they've checked in
            # Continue to time check
            pass
        
        # Check if current time matches reminder time (within 5-minute window)
        reminder_time = settings.reminder_time
        current_time = now.time()
        
        # Calculate time difference in minutes
        time_diff = abs((current_time.hour * 60 + current_time.minute) - 
                      (reminder_time.hour * 60 + reminder_time.minute))
        
        # Determine if reminder is needed based on time window
        needs_reminder = time_diff <= 5
        
    except ReminderSettings.DoesNotExist:
        # No settings means no reminders
        needs_reminder = False
        
    return needs_reminder

website/templates/website/reminder_settings.html (1)

1-82: Clean and well-organized template with proper form handling

The template follows good practices with proper error handling, help text display, and user-friendly layout. The JavaScript for setting a default time value is a nice UX touch.

Consider adding aria-describedby attributes to form fields for better accessibility:

-                                    {{ form.reminder_time }}
+                                    {{ form.reminder_time|add_attr:"aria-describedby:reminder-time-help" }}
...
-                                    <p class="mt-2 text-sm text-gray-500">{{ form.reminder_time.help_text }}</p>
+                                    <p id="reminder-time-help" class="mt-2 text-sm text-gray-500">{{ form.reminder_time.help_text }}</p>

Note: To implement this, you would need to create a custom filter called "add_attr" or update your forms to include these attributes directly.

website/management/commands/send_daily_reminders.py (4)

79-86: Enhance email content and add check-in link.

The email content is quite basic. Consider enhancing it with a more personalized message and a direct link to the check-in page to improve user experience.

email = EmailMessage(
    subject='Daily Check-in Reminder',
-    body='It\'s time for your daily check-in! Please log in to update your status.',
+    body=f'Hello {user.username},\n\nIt\'s time for your daily check-in! Please visit {settings.SITE_URL}/checkin/ to update your status.\n\nThanks,\nThe Team',
    from_email=settings.DEFAULT_FROM_EMAIL,
    to=[settings.DEFAULT_FROM_EMAIL],  # Send to a single recipient
    bcc=[user.email for user in user_batch],  # BCC all users in batch
)

---

42-44: Use datetime objects for clearer time comparison.

The current approach of converting hours and minutes to total minutes works but is less readable. Using datetime objects for comparison would be clearer.

-               # Check if current time matches reminder time (within 5 minutes)
-               time_diff = abs((user_now.hour * 60 + user_now.minute) - 
-                             (reminder_time.hour * 60 + reminder_time.minute))
-               
-               if time_diff <= 5:  # 5-minute window
+               # Check if current time matches reminder time (within 5 minutes)
+               # Create datetime objects for today with the user's reminder time
+               reminder_datetime = user_now.replace(
+                   hour=reminder_time.hour,
+                   minute=reminder_time.minute,
+                   second=0,
+                   microsecond=0
+               )
+               
+               # Calculate difference in minutes
+               time_diff_minutes = abs((user_now - reminder_datetime).total_seconds() / 60)
+               
+               if time_diff_minutes <= 5:  # 5-minute window

---

18-22: Add docstring parameters to the batch helper function.

The batch function would benefit from more detailed documentation, including parameter and return value descriptions.

def batch(iterable, size):
-   """Helper function to create batches from an iterable"""
+   """
+   Helper function to create batches from an iterable
+   
+   Args:
+       iterable: The iterable to be split into batches
+       size: The size of each batch
+       
+   Returns:
+       An iterator yielding lists of items, with each list of at most 'size' items
+   """
    iterator = iter(iterable)
    return iter(lambda: list(islice(iterator, size)), [])

---

12-16: Consider using Django's built-in logging configuration.

Instead of manually configuring logging, consider using Django's built-in logging configuration through LOGGING in settings.py. This provides more flexibility and consistency.

-logger = logging.getLogger('reminder_emails')
-handler = logging.FileHandler('logs/reminder_emails.log')
-handler.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(message)s'))
-logger.addHandler(handler)
-logger.setLevel(logging.INFO)
+# Use Django's configured logger
+logger = logging.getLogger('django.reminder_emails')

website/views/reminders.py (1)

66-70: Consider using datetime methods for time comparison.

The current time difference calculation works, but Python's datetime library offers cleaner alternatives.

-        # Allow for a 5-minute window
-        time_diff = abs((current_time.hour * 60 + current_time.minute) - 
-                       (reminder_time.hour * 60 + reminder_time.minute))
-        
-        return time_diff <= 5
+        # Allow for a 5-minute window
+        from datetime import datetime, timedelta
+        
+        # Convert times to datetime objects for easier comparison
+        current_dt = datetime.combine(now.date(), current_time)
+        reminder_dt = datetime.combine(now.date(), reminder_time)
+        
+        # Check if current time is within 5 minutes of reminder time
+        return abs(current_dt - reminder_dt) <= timedelta(minutes=5)

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

website/migrations/0238_add_reminder_settings.py (1)

15-26: Unrelated model changes included in reminder settings migration.

This migration combines changes to the Lecture model (making content and instructor nullable) with the addition of the new ReminderSettings model. These appear to be unrelated changes that would be better separated into different migrations for cleaner organization and easier rollback if needed.

Consider separating these unrelated model changes into different migrations - one for the Lecture model changes and another for the new ReminderSettings model.

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

website/management/commands/cron_send_reminders.py (4)

105-111: Consider improving the email content for better user engagement.

The current email is very basic with minimal content. Consider enhancing it with:

• A personalized greeting with the user's name
• More detailed instructions on how to check in
• A direct link to the check-in page
• Branding elements consistent with the rest of the application

email = EmailMessage(
    subject="Daily Check-in Reminder",
-   body="It's time for your daily check-in! Please log in to update your status.",
+   body=f"Hello {user.first_name or user.username},\n\n"
+        f"It's time for your daily check-in! Please log in to update your status.\n\n"
+        f"You can check in by visiting: {settings.SITE_URL}/dashboard/\n\n"
+        f"Thank you for staying active in our community!\n\n"
+        f"The {settings.SITE_NAME} Team",
    from_email=settings.DEFAULT_FROM_EMAIL,
    to=[settings.DEFAULT_FROM_EMAIL],  # Send to a single recipient
    bcc=[user.email for user in user_batch],  # BCC all users in batch
)

---

93-93: Consider making the batch size configurable.

The batch size is hardcoded to 50. Consider making it configurable through Django settings or a command-line argument for better flexibility.

You could modify this to use a setting with a default fallback:

- batch_size = 50
+ batch_size = getattr(settings, 'REMINDER_EMAIL_BATCH_SIZE', 50)

Or add it as a command option:

def add_arguments(self, parser):
    parser.add_argument(
        '--batch-size',
        type=int,
        default=50,
        help='Number of users to process in each email batch'
    )

Then use it in handle:

batch_size = options.get('batch_size', 50)

---

58-63: Consider database optimization.

The query for active reminder settings is well structured, but might benefit from indexing or prefetching user data to minimize database queries.

active_settings = ReminderSettings.objects.filter(
    is_active=True, reminder_time_utc__gte=window_start_time, reminder_time_utc__lt=window_end_time
-).exclude(last_reminder_sent__date=now.date())
+).exclude(last_reminder_sent__date=now.date()).select_related('user')

This select_related('user') will fetch user data in the same query, reducing the number of database hits when accessing user properties.

---

13-17: Consider using Django's built-in logging configuration.

The current approach directly configures a file handler in the code. Consider using Django's logging configuration in settings.py instead for better maintainability.

While the current implementation works, Django's recommended approach is to configure logging in settings.py:

# In settings.py
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'verbose': {
            'format': '%(asctime)s - %(levelname)s - %(message)s'
        },
    },
    'handlers': {
        'reminder_file': {
            'level': 'INFO',
            'class': 'logging.FileHandler',
            'filename': 'logs/reminder_emails.log',
            'formatter': 'verbose',
        },
    },
    'loggers': {
        'website.management.commands.cron_send_reminders': {
            'handlers': ['reminder_file'],
            'level': 'INFO',
        },
    },
}

Then in your code, you could simplify to just:

logger = logging.getLogger(__name__)

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

website/management/commands/cron_send_reminders.py (5)

108-114: Consider enhancing the email content and using templates.

While the current email implementation works, it could be improved by:

1. Using HTML templates for better formatting
2. Personalizing the content with the user's name
3. Using Django's translation system for internationalization support

# Example implementation using templates
- email = EmailMessage(
-     subject="Daily Check-in Reminder",
-     body="It's time for your daily check-in! Please log in to update your status.",
-     from_email=settings.DEFAULT_FROM_EMAIL,
-     to=[settings.DEFAULT_FROM_EMAIL],  # Send to a single recipient
-     bcc=[user.email for user in user_batch],  # BCC all users in batch
- )

+ from django.template.loader import render_to_string
+ from django.utils.translation import gettext as _
+ 
+ subject = _("Daily Check-in Reminder")
+ # Create individual personalized emails if needed
+ for user in user_batch:
+     html_message = render_to_string(
+         'emails/daily_reminder.html',
+         {'username': user.username}
+     )
+     email = EmailMessage(
+         subject=subject,
+         body=html_message,
+         from_email=settings.DEFAULT_FROM_EMAIL,
+         to=[user.email],
+     )
+     email.content_subtype = "html"
+     email.send()

---

85-87: Log specific exception details for better debugging.

The current error handling logs the exception message, but including the full traceback would make debugging easier.

- except Exception as e:
-     logger.error(f"Error processing user {reminder_settings.user.username}: {str(e)}")
-     continue
+ except Exception as e:
+     logger.error(f"Error processing user {reminder_settings.user.username}: {str(e)}", exc_info=True)
+     continue

---

93-96: Consider making batch size configurable.

Currently, the batch size is hardcoded at 50. For greater flexibility, consider making this configurable through Django settings or command arguments.

- # Process users in batches of 50
- batch_size = 50
+ # Get batch size from settings with a default value
+ batch_size = getattr(settings, 'REMINDER_EMAIL_BATCH_SIZE', 50)

---

1-146: Add tests for the reminder functionality.

This is a complex and important feature that should be thoroughly tested. Consider adding unit and integration tests for this command.

Would you like me to suggest a testing strategy or generate some test cases for this command?

---

27-29: Add detailed docstring for the Command class.

The Command class would benefit from a more descriptive docstring explaining its purpose, behavior, and any important implementation details.

 class Command(LoggedBaseCommand):
-    help = "Sends daily check-in reminders to users who haven't checked in today"
+    """
+    Sends daily check-in reminders to users who haven't checked in today.
+    
+    This command:
+    1. Determines the current 15-minute UTC time window
+    2. Finds users with active reminder settings in that window
+    3. Checks if they have already checked in today
+    4. Sends batch emails to users who need reminders
+    5. Updates the last_reminder_sent timestamp for those users
+    
+    The command processes users in batches of 50 with random delays between
+    batches to avoid overwhelming the email server.
+    """
+    help = "Sends daily check-in reminders to users who haven't checked in today"

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro