handle removals

src/registrar/utility/email_invitations.py

@@ -275,3 +275,54 @@ def _send_portfolio_admin_addition_emails_to_portfolio_admins(email: str, reques
             )
         all_emails_sent = False
     return all_emails_sent
+
+
+def send_portfolio_admin_removal_emails(email: str, requestor, portfolio: Portfolio):
+    """
+    Notifies all portfolio admins of the provided portfolio of a removed portfolio admin
+
+    Returns:
+        Boolean indicating if all messages were sent successfully.
+
+    Raises:
+        MissingEmailError
+    """
+    requestor_email = _get_requestor_email(requestor, portfolio=portfolio)
+    return _send_portfolio_admin_removal_emails_to_portfolio_admins(email, requestor_email, portfolio)
+
+
+def _send_portfolio_admin_removal_emails_to_portfolio_admins(email: str, requestor_email, portfolio: Portfolio):
+    """
+    Notifies all portfolio admins of the provided portfolio of a removed portfolio admin
+
+    Returns:
+        Boolean indicating if all messages were sent successfully.
+    """
+    all_emails_sent = True
+    # Get each portfolio admin from list
+    user_portfolio_permissions = UserPortfolioPermission.objects.filter(
+        portfolio=portfolio, roles__contains=[UserPortfolioRoleChoices.ORGANIZATION_ADMIN]
+    ).exclude(user__email=email)
+    for user_portfolio_permission in user_portfolio_permissions:
+        # Send email to each portfolio_admin
+        user = user_portfolio_permission.user
+        try:
+            send_templated_email(
+                "emails/portfolio_admin_removal_notification.txt",
+                "emails/portfolio_admin_removal_notification_subject.txt",
+                to_address=user.email,
+                context={
+                    "portfolio": portfolio,
+                    "requestor_email": requestor_email,
+                    "removed_email_address": email,
+                    "portfolio_admin": user,
+                    "date": date.today(),
+                },
+            )
+        except EmailSendingError:
+            logger.warning(
+                f"Could not send email organization admin notification to {user.email} for portfolio: {portfolio.name}",
+                exc_info=True,
+            )
+        all_emails_sent = False
+    return all_emails_sent

src/registrar/views/portfolios.py

@@ -148,6 +148,21 @@ class PortfolioMemberDeleteView(PortfolioMemberPermission, View):
                 messages.error(request, error_message)
                 return redirect(reverse("member", kwargs={"pk": pk}))
 
+        # if member being removed is an admin
+        if UserPortfolioRoleChoices.ORGANIZATION_ADMIN in portfolio_member_permission.roles:
+            try:
+                # attempt to send notification emails of the removal to other portfolio admins
+                if not send_portfolio_admin_removal_emails(
+                    email=portfolio_member_permission.user.email,
+                    requestor=request.user,
+                    portfolio=portfolio_member_permission.portfolio
+                ):
+                    messages.warning(
+                        self.request, "Could not send email notification to existing organization admins."
+                    )
+            except Exception as e:
+                self._handle_exceptions(e)
+
         # passed all error conditions
         portfolio_member_permission.delete()
 
@@ -159,6 +174,18 @@ class PortfolioMemberDeleteView(PortfolioMemberPermission, View):
             messages.success(request, success_message)
             return redirect(reverse("members"))
 
+    def _handle_exceptions(self, exception):
+        """Handle exceptions raised during the process."""
+        if isinstance(exception, MissingEmailError):
+            messages.warning(self.request, "Could not send email notification to existing organization admins.")
+            logger.warning(
+                f"Could not send email notification to existing organization admins.",
+                exc_info=True,
+            )
+        else:
+            logger.warning("Could not send email notification to existing organization admins.", exc_info=True)
+            messages.warning(self.request, "Could not send email notification to existing organization admins.")
+
 
 class PortfolioMemberEditView(PortfolioMemberEditPermissionView, View):
 
@@ -182,7 +209,6 @@ class PortfolioMemberEditView(PortfolioMemberEditPermissionView, View):
 
     def post(self, request, pk):
         portfolio_permission = get_object_or_404(UserPortfolioPermission, pk=pk)
-        user_initially_is_admin = UserPortfolioRoleChoices.ORGANIZATION_ADMIN in portfolio_permission.roles
         user = portfolio_permission.user
         form = self.form_class(request.POST, instance=portfolio_permission)
         if form.is_valid():
@@ -415,6 +441,21 @@ class PortfolioInvitedMemberDeleteView(PortfolioMemberPermission, View):
         """
         portfolio_invitation = get_object_or_404(PortfolioInvitation, pk=pk)
 
+        # if invitation being removed is an admin
+        if UserPortfolioRoleChoices.ORGANIZATION_ADMIN in portfolio_invitation.roles:
+            try:
+                # attempt to send notification emails of the removal to portfolio admins
+                if not send_portfolio_admin_removal_emails(
+                    email=portfolio_invitation.email,
+                    requestor=request.user,
+                    portfolio=portfolio_invitation.portfolio
+                ):
+                    messages.warning(
+                        self.request, "Could not send email notification to existing organization admins."
+                    )
+            except Exception as e:
+                self._handle_exceptions(e)
+
         portfolio_invitation.delete()
 
         success_message = f"You've removed {portfolio_invitation.email} from the organization."
@@ -425,6 +466,18 @@ class PortfolioInvitedMemberDeleteView(PortfolioMemberPermission, View):
             messages.success(request, success_message)
             return redirect(reverse("members"))
 
+    def _handle_exceptions(self, exception):
+        """Handle exceptions raised during the process."""
+        if isinstance(exception, MissingEmailError):
+            messages.warning(self.request, "Could not send email notification to existing organization admins.")
+            logger.warning(
+                f"Could not send email notification to existing organization admins.",
+                exc_info=True,
+            )
+        else:
+            logger.warning("Could not send email notification to existing organization admins.", exc_info=True)
+            messages.warning(self.request, "Could not send email notification to existing organization admins.")
+            
 
 class PortfolioInvitedMemberEditView(PortfolioMemberEditPermissionView, View):