From fb8f2d10984bcfa2585dc272b4c85d285b722792 Mon Sep 17 00:00:00 2001
From: Michael Manfre
Date: Mon, 28 Nov 2022 23:41:36 -0500
Subject: Hashtags

---
 activities/views/admin/__init__.py |  0
 activities/views/explore.py        | 26 ++++++++++++++++++++++
 activities/views/search.py         | 43 ++++++++++++++++++++++++++++--------
 activities/views/timelines.py      | 45 ++++++++++++++++++++++++++++++++------
 4 files changed, 98 insertions(+), 16 deletions(-)
 create mode 100644 activities/views/admin/__init__.py
 create mode 100644 activities/views/explore.py

(limited to 'activities/views')

diff --git a/activities/views/admin/__init__.py b/activities/views/admin/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/activities/views/explore.py b/activities/views/explore.py
new file mode 100644
index 0000000..ddb1e6c
--- /dev/null
+++ b/activities/views/explore.py
@@ -0,0 +1,26 @@
+from django.views.generic import ListView
+
+from activities.models import Hashtag
+
+
+class ExploreTag(ListView):
+
+    template_name = "activities/explore_tag.html"
+    extra_context = {
+        "current_page": "explore",
+        "allows_refresh": True,
+    }
+    paginate_by = 20
+
+    def get_queryset(self):
+        return (
+            Hashtag.objects.public()
+            .filter(
+                stats__total__gt=0,
+            )
+            .order_by("-stats__total")
+        )[:20]
+
+
+class Explore(ExploreTag):
+    pass
diff --git a/activities/views/search.py b/activities/views/search.py
index b175052..4719f64 100644
--- a/activities/views/search.py
+++ b/activities/views/search.py
@@ -1,6 +1,9 @@
+from typing import Set
+
 from django import forms
 from django.views.generic import FormView
 
+from activities.models import Hashtag
 from users.models import Domain, Identity
 
 
@@ -9,13 +12,13 @@ class Search(FormView):
     template_name = "activities/search.html"
 
     class form_class(forms.Form):
-        query = forms.CharField(help_text="Search for a user by @username@domain")
-
-    def form_valid(self, form):
-        query = form.cleaned_data["query"].lstrip("@").lower()
-        results = {"identities": set()}
-        # Search identities
+        query = forms.CharField(
+            help_text="Search for a user by @username@domain or hashtag by #tagname"
+        )
 
+    def search_identities(self, query: str):
+        query = query.lstrip("@")
+        results: Set[Identity] = set()
         if "@" in query:
             username, domain = query.split("@", 1)
 
@@ -35,13 +38,35 @@ class Search(FormView):
                     )
                 identity = None
             if identity:
-                results["identities"].add(identity)
+                results.add(identity)
 
         else:
             for identity in Identity.objects.filter(username=query)[:20]:
-                results["identities"].add(identity)
+                results.add(identity)
             for identity in Identity.objects.filter(username__startswith=query)[:20]:
-                results["identities"].add(identity)
+                results.add(identity)
+        return results
+
+    def search_hashtags(self, query: str):
+        results: Set[Hashtag] = set()
+
+        if "@" in query:
+            return results
+
+        query = query.lstrip("#")
+        for hashtag in Hashtag.objects.public().hashtag_or_alias(query)[:10]:
+            results.add(hashtag)
+        for hashtag in Hashtag.objects.public().filter(hashtag__startswith=query)[:10]:
+            results.add(hashtag)
+        return results
+
+    def form_valid(self, form):
+        query = form.cleaned_data["query"].lower()
+        results = {
+            "identities": self.search_identities(query),
+            "hashtags": self.search_hashtags(query),
+        }
+
         # Render results
         context = self.get_context_data(form=form)
         context["results"] = results
diff --git a/activities/views/timelines.py b/activities/views/timelines.py
index 4f2a515..ffe329c 100644
--- a/activities/views/timelines.py
+++ b/activities/views/timelines.py
@@ -1,10 +1,10 @@
 from django import forms
-from django.shortcuts import redirect
+from django.shortcuts import get_object_or_404, redirect
 from django.template.defaultfilters import linebreaks_filter
 from django.utils.decorators import method_decorator
 from django.views.generic import FormView, ListView
 
-from activities.models import Post, PostInteraction, TimelineEvent
+from activities.models import Hashtag, Post, PostInteraction, TimelineEvent
 from core.models import Config
 from users.decorators import identity_required
 
@@ -61,6 +61,41 @@ class Home(FormView):
         return redirect(".")
 
 
+class Tag(ListView):
+
+    template_name = "activities/tag.html"
+    extra_context = {
+        "current_page": "tag",
+        "allows_refresh": True,
+    }
+    paginate_by = 50
+
+    def get(self, request, hashtag, *args, **kwargs):
+        tag = hashtag.lower().lstrip("#")
+        if hashtag != tag:
+            # SEO sanitize
+            return redirect(f"/tags/{tag}/", permanent=True)
+        self.hashtag = get_object_or_404(Hashtag.objects.public(), hashtag=tag)
+        return super().get(request, *args, **kwargs)
+
+    def get_queryset(self):
+        return (
+            Post.objects.local_public()
+            .tagged_with(self.hashtag)
+            .select_related("author")
+            .prefetch_related("attachments")
+            .order_by("-created")[:50]
+        )
+
+    def get_context_data(self):
+        context = super().get_context_data()
+        context["hashtag"] = self.hashtag
+        context["interactions"] = PostInteraction.get_post_interactions(
+            context["page_obj"], self.request.identity
+        )
+        return context
+
+
 class Local(ListView):
 
     template_name = "activities/local.html"
@@ -72,11 +107,7 @@ class Local(ListView):
 
     def get_queryset(self):
         return (
-            Post.objects.filter(
-                visibility=Post.Visibilities.public,
-                author__local=True,
-                in_reply_to__isnull=True,
-            )
+            Post.objects.local_public()
             .select_related("author")
             .prefetch_related("attachments")
             .order_by("-created")[:50]
-- 
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