From 79002e1eaf96e9cfcd2993715b67cf3a61e02fb3 Mon Sep 17 00:00:00 2001
From: Andrew Godwin <andrew@aeracode.org>
Date: Thu, 24 Nov 2022 22:31:45 -0700
Subject: [PATCH] Add initial delete UI

---
 activities/models/post.py             |  1 +
 activities/views/posts.py             | 56 ++++++++++++++++++++++++---
 takahe/urls.py                        |  1 +
 templates/activities/_post.html       |  2 +-
 templates/activities/post_delete.html | 14 +++++++
 5 files changed, 67 insertions(+), 7 deletions(-)
 create mode 100644 templates/activities/post_delete.html

diff --git a/activities/models/post.py b/activities/models/post.py
index c8165d6..642842c 100644
--- a/activities/models/post.py
+++ b/activities/models/post.py
@@ -138,6 +138,7 @@ class Post(StatorModel):
         action_unlike = "{view}unlike/"
         action_boost = "{view}boost/"
         action_unboost = "{view}unboost/"
+        action_delete = "{view}delete/"
         action_reply = "/compose/?reply_to={self.id}"
 
         def get_scheme(self, url):
diff --git a/activities/views/posts.py b/activities/views/posts.py
index a53d401..268a3fe 100644
--- a/activities/views/posts.py
+++ b/activities/views/posts.py
@@ -1,4 +1,5 @@
 from django import forms
+from django.http import JsonResponse
 from django.shortcuts import get_object_or_404, redirect, render
 from django.utils.decorators import method_decorator
 from django.views.generic import FormView, TemplateView, View
@@ -7,8 +8,10 @@ from activities.models import (
     Post,
     PostInteraction,
     PostInteractionStates,
+    PostStates,
     TimelineEvent,
 )
+from core.ld import canonicalise
 from core.models import Config
 from users.decorators import identity_required
 from users.shortcuts import by_handle_or_404
@@ -18,18 +21,38 @@ class Individual(TemplateView):
 
     template_name = "activities/post.html"
 
-    def get_context_data(self, handle, post_id):
-        identity = by_handle_or_404(self.request, handle, local=False)
-        post = get_object_or_404(identity.posts, pk=post_id)
+    def get(self, request, handle, post_id):
+        self.identity = by_handle_or_404(self.request, handle, local=False)
+        self.post_obj = get_object_or_404(self.identity.posts, pk=post_id)
+        # If they're coming in looking for JSON, they want the actor
+        accept = request.META.get("HTTP_ACCEPT", "text/html").lower()
+        if (
+            "application/json" in accept
+            or "application/ld" in accept
+            or "application/activity" in accept
+        ):
+            # Return post JSON
+            return self.serve_object()
+        else:
+            # Show normal page
+            return super().get(request)
+
+    def get_context_data(self):
         return {
-            "identity": identity,
-            "post": post,
+            "identity": self.identity,
+            "post": self.post_obj,
             "interactions": PostInteraction.get_post_interactions(
-                [post],
+                [self.post_obj],
                 self.request.identity,
             ),
         }
 
+    def serve_object(self):
+        # If this not a local post, redirect to its canonical URI
+        if not self.post_obj.local:
+            return redirect(self.post_obj.object_uri)
+        return JsonResponse(canonicalise(self.post_obj.to_ap(), include_security=True))
+
 
 @method_decorator(identity_required, name="dispatch")
 class Like(View):
@@ -111,6 +134,27 @@ class Boost(View):
         return redirect(post.urls.view)
 
 
+@method_decorator(identity_required, name="dispatch")
+class Delete(TemplateView):
+    """
+    Deletes a post
+    """
+
+    template_name = "activities/post_delete.html"
+
+    def dispatch(self, request, handle, post_id):
+        self.identity = by_handle_or_404(self.request, handle, local=False)
+        self.post_obj = get_object_or_404(self.identity.posts, pk=post_id)
+        return super().dispatch(request)
+
+    def get_context_data(self):
+        return {"post": self.post_obj}
+
+    def post(self, request):
+        self.post_obj.transition_perform(PostStates.deleted)
+        return redirect("/")
+
+
 @method_decorator(identity_required, name="dispatch")
 class Compose(FormView):
 
diff --git a/takahe/urls.py b/takahe/urls.py
index 614ec3b..ddffa68 100644
--- a/takahe/urls.py
+++ b/takahe/urls.py
@@ -94,6 +94,7 @@ urlpatterns = [
     path("@<handle>/posts/<int:post_id>/unlike/", posts.Like.as_view(undo=True)),
     path("@<handle>/posts/<int:post_id>/boost/", posts.Boost.as_view()),
     path("@<handle>/posts/<int:post_id>/unboost/", posts.Boost.as_view(undo=True)),
+    path("@<handle>/posts/<int:post_id>/delete/", posts.Delete.as_view()),
     # Authentication
     path("auth/login/", auth.Login.as_view(), name="login"),
     path("auth/logout/", auth.Logout.as_view(), name="logout"),
diff --git a/templates/activities/_post.html b/templates/activities/_post.html
index e109e9c..06aa3f7 100644
--- a/templates/activities/_post.html
+++ b/templates/activities/_post.html
@@ -34,7 +34,7 @@
             <i class="fa-solid fa-caret-down"></i>
         </a>
         <menu>
-            <a>
+            <a href="{{ post.urls.action_delete }}">
                 <i class="fa-solid fa-trash"></i> Delete
             </a>
         </menu>
diff --git a/templates/activities/post_delete.html b/templates/activities/post_delete.html
new file mode 100644
index 0000000..1566399
--- /dev/null
+++ b/templates/activities/post_delete.html
@@ -0,0 +1,14 @@
+{% extends "base.html" %}
+
+{% block title %}Delete Post{% endblock %}
+
+{% block content %}
+    <h1>Delete this post?</h1>
+    <form action="." method="POST">
+        {% csrf_token %}
+        <a class="button" onclick="history.back()">Cancel</a>
+        <button class="delete">Delete</button>
+    </form>
+
+    {% include "activities/_post.html" %}
+{% endblock %}