Add an invite email and new route that creates a subscriber and email…

…s them!

backend/src/appointment/controller/mailer.py

@@ -259,3 +259,19 @@ def text(self):
 
     def html(self):
         return get_template("support.jinja2").render(requestee=self.requestee, topic=self.topic, details=self.details)
+
+
+class InviteAccountMail(Mailer):
+    def __init__(self, *args, **kwargs):
+        default_kwargs = {
+            "subject": l10n('new-account-mail-subject')
+        }
+        super(InviteAccountMail, self).__init__(*args, **default_kwargs, **kwargs)
+
+    def text(self):
+        return l10n('new-account-mail-plain', {
+            'homepage_url': os.getenv('FRONTEND_URL'),
+        })
+
+    def html(self):
+        return get_template("new_account.jinja2").render(homepage_url=os.getenv('FRONTEND_URL'))

backend/src/appointment/dependencies/auth.py

@@ -57,11 +57,8 @@ def get_subscriber(
 
 def get_admin_subscriber(
     user: models.Subscriber = Depends(get_subscriber),
-    db: Session = Depends(get_db),
 ):
-    if user is None:
-        raise InvalidTokenException()
-
+    """Retrieve the subscriber and check if they're an admin"""
     # check admin allow list
     admin_emails = os.getenv("APP_ADMIN_ALLOW_LIST", '').split(',')
     if not any([user.email.endswith(allowed_email) for allowed_email in admin_emails]):

backend/src/appointment/l10n/en/email.ftl

@@ -103,3 +103,14 @@ support-mail-plain = { $requestee_name } ({ $requestee_email }) sent the followi
                     Topic: { $topic }
                     Details: { $details }
                     {-brand-footer}
+
+## New/Invited Account Email
+new-account-mail-subject = You've been invited to Thunderbird Appointment
+new-account-mail-action = Continue to Thunderbird Appointment
+new-account-mail-html-heading = You've been invited to Thunderbird Appointment. Login with this email address to continue.
+# Variables:
+# $homepage_url (String) - URL to Thunderbird Appointment
+new-account-mail-plain = You've been invited to Thunderbird Appointment.
+                    Login with this email address to continue.
+                    { $homepage_url }
+                    {-brand-footer}

backend/src/appointment/routes/invite.py

@@ -1,5 +1,4 @@
-
-from fastapi import APIRouter, Depends
+from fastapi import APIRouter, Depends, BackgroundTasks
 
 from sqlalchemy.orm import Session
 
@@ -9,6 +8,7 @@
 from ..dependencies.database import get_db
 
 from ..exceptions import validation
+from ..tasks.emails import send_invite_account_email
 
 router = APIRouter()
 
@@ -48,3 +48,30 @@ def revoke_invite_code(code: str, db: Session = Depends(get_db), admin: Subscrib
     if not repo.invite.code_is_available(db, code):
         raise validation.InviteCodeNotAvailableException()
     return repo.invite.revoke_code(db, code)
+
+
+@router.post("/send", response_model=schemas.Invite)
+def send_invite_email(
+    background_tasks: BackgroundTasks,
+    email: str,
+    db: Session = Depends(get_db),
+    # Note admin must be here to for permission reasons
+    _admin: Subscriber = Depends(get_admin_subscriber)
+):
+    """With a given email address, generate a subscriber and email them, welcoming them to Thunderbird Appointment."""
+    invite_code = repo.invite.generate_codes(db, 1)[0]
+    subscriber = repo.subscriber.create(db, schemas.SubscriberBase(
+        email=email,
+        username=email,
+    ))
+
+    if not subscriber:
+        raise RuntimeError
+
+    invite_code.subscriber_id = subscriber.id
+    db.add(invite_code)
+    db.commit()
+
+    background_tasks.add_task(send_invite_account_email, to=email)
+
+    return invite_code

backend/src/appointment/tasks/emails.py

@@ -1,5 +1,5 @@
 from appointment.controller.mailer import PendingRequestMail, ConfirmationMail, InvitationMail, ZoomMeetingFailedMail, \
-    RejectionMail, SupportRequestMail
+    RejectionMail, SupportRequestMail, InviteAccountMail
 
 
 def send_invite_email(to, attachment):
@@ -49,3 +49,8 @@ def send_support_email(requestee, topic, details):
         details=details,
     )
     mail.send()
+
+
+def send_invite_account_email(to):
+    mail = InviteAccountMail(to=to)
+    mail.send()

backend/src/appointment/templates/email/new_account.jinja2

@@ -0,0 +1,21 @@
+<html lang="{{ l10n('locale') }}">
+  <body>
+    <p>
+      {{ l10n('new-account-html-heading') }}
+    </p>
+    <div>
+      <a
+        href="{{ homepage_url }}"
+        style="
+          display:inline-block;
+          padding:.5rem 1rem;
+          color:white;
+          background:#0e757f;
+          border-radius:6px;
+          text-decoration:none;
+        "
+      >{{ l10n('new-account-mail-action') }}</a>
+    </div>
+    {% include 'includes/footer.jinja2' %}
+  </body>
+</html>