Fix PSF membership link (#2787) with dynamic logic

.gitignore

@@ -27,3 +27,4 @@ __pycache__
 .DS_Store
 .envrc
 .state/
+venv*/

templates/includes/authenticated.html

@@ -7,7 +7,19 @@
                 <li class="tier-2 element-1" role="treeitem"><a href="{% url 'users:user_profile_edit' %}">Edit your user profile</a></li>
                 <li class="tier-2 element-2" role="treeitem"><a href="{% url 'account_change_password' %}">Change your password</a></li>
                 {% if request.user.has_membership %}
-                <li class="tier-2 element-3" role="treeitem"><a href="{% url 'users:user_membership_edit' %}">Edit your PSF Basic membership</a></li>
+                <li class="tier-2 element-3" role="treeitem">
+                     {% if user.is_authenticated %}
+                        {% if user.has_membership %}
+                            <a href="{% url 'users:user_membership_edit' %}">Edit your PSF Basic membership</a>
+                        {% else %}
+                            <a href="{% url 'users:user_membership_create' %}">Join the PSF</a>
+                        {% endif %}
+                    {% else %}
+                        <a href="{% url 'account_login' %}?next=https://psfmember.org/membership/">
+                            Log in to manage membership
+                        </a>
+                    {% endif %}
+                </li>
                 {% else %}
                 <li class="tier-2 element-3" role="treeitem"><a href="{% url 'users:user_membership_create' %}">Become a PSF Basic member</a></li>
                 {% endif %}

users/tests/test_membership_links.py

@@ -0,0 +1,36 @@
+from django.test import TestCase, RequestFactory
+from django.template import Context, Template
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import AnonymousUser
+from users.models import Membership
+
+User = get_user_model()
+
+class MembershipLinkTests(TestCase):
+
+    def setUp(self):
+        self.factory = RequestFactory()
+        self.user = User.objects.create_user(username='testuser', password='123')
+        self.template = Template("""
+            {% include 'includes/authenticated.html' %}
+        """)
+
+    def render_template(self, user):
+        request = self.factory.get('/')
+        request.user = user
+        return self.template.render(Context({'user': user, 'request': request}))
+
+    def test_anonymous_user(self):
+        html = self.render_template(AnonymousUser())
+        # Anonymous users should see "Sign In"
+        self.assertIn('Sign In', html)
+
+    def test_logged_in_non_member(self):
+        html = self.render_template(self.user)
+        # Logged-in but not a member -> should see the membership join link
+        self.assertIn('Become a PSF Basic member', html)
+
+    def test_logged_in_member(self):
+        Membership.objects.create(creator=self.user)
+        html = self.render_template(self.user)
+        self.assertIn('Edit your PSF Basic membership', html)