Implement "Send me an email" button on final extension onboarding

app/onboarding/views/final.py

@@ -1,9 +1,26 @@
+from app.extensions import limiter
 from app.onboarding.base import onboarding_bp
-from flask import render_template
+from app.email_utils import send_test_email_alias
+from flask import render_template, request, flash
+from flask_login import current_user, login_required
+from flask_wtf import FlaskForm
+from wtforms import StringField, validators
 
 
-@onboarding_bp.route("/final", methods=["GET"])
+class SendEmailForm(FlaskForm):
+    email = StringField("Email", validators=[validators.DataRequired()])
+
+
+@onboarding_bp.route("/final", methods=["GET", "POST"])
+@login_required
+@limiter.limit("10/minute")
 def final():
+    form = SendEmailForm(request.form)
+    if form.validate_on_submit():
+        send_test_email_alias(form.email.data, current_user.name)
+        flash("We have sent a test e-mail to your alias", "success")
+
     return render_template(
         "onboarding/final.html",
+        form=form,
     )

templates/onboarding/final.html

@@ -15,7 +15,20 @@
 
     <!-- Text container -->
     <div class="mt-8 mb-4 text-center">
-      <h2 class="text-red" style="font-size:2rem">All set!</h2>
+      <h2 class="text-black-50" style="font-size:2rem">Quickly create an alias every time you need an email</h2>
+    </div>
+
+
+    <!-- Input + button container -->
+    <div class="mt-8" style="display: grid; place-items: center;">
+      <div style="width: 25rem; display: block">
+        <form method="post">
+          {{ form.csrf_token }}
+          {{ form.email(class="p-3", type="email", autofocus="true", placeholder="email", style="border: 2px solid black; border-radius: 2px; width:100%") }}
+          {{ render_field_errors(form.email) }}
+          <button type="submit" class="p-4 mt-2 text-decoration-none" style="background:black;color:white; width:10rem">Send me an email</button>
+        </form>
+      </div>
     </div>
 
   </div>