From 7d3605f5e11c0a2a1cec94a5b3e13a7fa63a6746 Mon Sep 17 00:00:00 2001
From: Jake Howard <git@theorangeone.net>
Date: Sun, 28 Jan 2024 18:06:17 +0000
Subject: [PATCH] Add API for latest posts

---
 website/api/pagination.py  |  4 ++--
 website/api/serializers.py | 11 +++++++++++
 website/api/tests.py       | 17 +++++++++++++++++
 website/api/urls.py        |  1 +
 website/api/views.py       | 17 +++++++++++++++++
 5 files changed, 48 insertions(+), 2 deletions(-)

diff --git a/website/api/pagination.py b/website/api/pagination.py
index db74939..6031b55 100644
--- a/website/api/pagination.py
+++ b/website/api/pagination.py
@@ -2,5 +2,5 @@ from rest_framework.pagination import PageNumberPagination
 
 
 class CustomPageNumberPagination(PageNumberPagination):
-    page_size = 15
-    max_page_size = 40
+    page_size = 10
+    max_page_size = 25
diff --git a/website/api/serializers.py b/website/api/serializers.py
index 551ffb5..7a67670 100644
--- a/website/api/serializers.py
+++ b/website/api/serializers.py
@@ -36,3 +36,14 @@ class LMOTFYSerializer(serializers.ModelSerializer):
             return self.context["request"].build_absolute_uri(image_url)
 
         return image_url
+
+
+class LatestPostSerializer(serializers.ModelSerializer):
+    full_url = serializers.SerializerMethodField()
+
+    class Meta:
+        model = BlogPostPage
+        fields = read_only_fields = ["full_url", "title", "date"]
+
+    def get_full_url(self, page: Page) -> str:
+        return page.get_full_url(request=self.context["request"])
diff --git a/website/api/tests.py b/website/api/tests.py
index dc4f743..f392662 100644
--- a/website/api/tests.py
+++ b/website/api/tests.py
@@ -86,3 +86,20 @@ class SchemaTestCase(APISimpleTestCase):
     def test_schema(self) -> None:
         response = self.client.get(reverse("api:schema"))
         self.assertEqual(response.status_code, 200)
+
+
+class LatestPostsAPIViewTestCase(APITestCase):
+    url = reverse("api:latest-posts")
+
+    @classmethod
+    def setUpTestData(cls) -> None:
+        cls.home_page = HomePage.objects.get()
+
+        for i in range(4):
+            BlogPostPageFactory(parent=cls.home_page, title=f"Post {i}")
+
+    def test_accessible(self) -> None:
+        with self.assertNumQueries(5):
+            response = self.client.get(self.url)
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.data["count"], 4)
diff --git a/website/api/urls.py b/website/api/urls.py
index 871ef02..74606bb 100644
--- a/website/api/urls.py
+++ b/website/api/urls.py
@@ -10,6 +10,7 @@ api_urlpatterns = [
     path("ping/", views.PingAPIView.as_view(), name="ping"),
     path("page-links/", views.PageLinksAPIView.as_view(), name="page-links"),
     path("lmotfy/", views.LMOTFYAPIView.as_view(), name="lmotfy"),
+    path("latest-posts/", views.LatestPostsAPIView.as_view(), name="latest-posts"),
 ]
 
 schema_view = get_schema_view(
diff --git a/website/api/views.py b/website/api/views.py
index 52af7c7..96e01a8 100644
--- a/website/api/views.py
+++ b/website/api/views.py
@@ -60,3 +60,20 @@ class SwaggerRedirectView(RedirectView):
         return HttpResponseRedirect(
             self.SWAGGER_EDITOR_URL + request.build_absolute_uri(reverse("api:schema"))
         )
+
+
+class LatestPostsAPIView(ListAPIView):
+    """
+    List my latest blog posts
+    """
+
+    serializer_class = serializers.LatestPostSerializer
+    pagination_class = CustomPageNumberPagination
+
+    def get_queryset(self) -> PageQuerySet:
+        return (
+            BlogPostPage.objects.live()
+            .public()
+            .only("id", "url_path", "title", "date")
+            .order_by("-date")
+        )