Feature conversations muting (#3017)

* Add <ostatus:conversation /> tag to Atom input/output

Only uses ref attribute (not href) because href would be
the alternate link that's always included also.

Creates new conversation for every non-reply status. Carries
over conversation for every reply. Keeps remote URIs verbatim,
generates local URIs on the fly like the rest of them.

* Conversation muting - prevents notifications that reference a conversation
(including replies, favourites, reblogs) from being created. API endpoints
/api/v1/statuses/:id/mute and /api/v1/statuses/:id/unmute

Currently no way to tell when a status/conversation is muted, so the web UI
only has a "disable notifications" button, doesn't work as a toggle

* Display "Dismiss notifications" on all statuses in notifications column, not just own

* Add "muted" as a boolean attribute on statuses JSON

For now always false on contained reblogs, since it's only relevant for
statuses returned from the notifications endpoint, which are not nested

Remove "Disable notifications" from detailed status view, since it's
only relevant in the notifications column

* Up max class length

* Remove pending test for conversation mute

* Add tests, clean up

* Rename to "mute conversation" and "unmute conversation"

* Raise validation error when trying to mute/unmute status without conversation

spec/controllers/api/v1/statuses_controller_spec.rb

@@ -183,6 +183,39 @@ RSpec.describe Api::V1::StatusesController, type: :controller do
         expect(user.account.favourited?(status)).to be false
       end
     end
+
+    describe 'POST #mute' do
+      let(:status) { Fabricate(:status, account: user.account) }
+
+      before do
+        post :mute, params: { id: status.id }
+      end
+
+      it 'returns http success' do
+        expect(response).to have_http_status(:success)
+      end
+
+      it 'creates a conversation mute' do
+        expect(ConversationMute.find_by(account: user.account, conversation_id: status.conversation_id)).to_not be_nil
+      end
+    end
+
+    describe 'POST #unmute' do
+      let(:status) { Fabricate(:status, account: user.account) }
+
+      before do
+        post :mute,   params: { id: status.id }
+        post :unmute, params: { id: status.id }
+      end
+
+      it 'returns http success' do
+        expect(response).to have_http_status(:success)
+      end
+
+      it 'destroys the conversation mute' do
+        expect(ConversationMute.find_by(account: user.account, conversation_id: status.conversation_id)).to be_nil
+      end
+    end
   end
 
   context 'without an oauth token' do

spec/fabricators/conversation_mute_fabricator.rb

@@ -0,0 +1,2 @@
+Fabricator(:conversation_mute) do
+end

spec/models/conversation_mute_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe ConversationMute, type: :model do
+
+end

spec/models/status_spec.rb

@@ -196,6 +196,54 @@ RSpec.describe Status, type: :model do
     pending
   end
 
+  describe '.mutes_map' do
+    let(:status)  { Fabricate(:status) }
+    let(:account) { Fabricate(:account) }
+
+    subject { Status.mutes_map([status.conversation.id], account) }
+
+    it 'returns a hash' do
+      expect(subject).to be_a Hash
+    end
+
+    it 'contains true value' do
+      account.mute_conversation!(status.conversation)
+      expect(subject[status.conversation.id]).to be true
+    end
+  end
+
+  describe '.favourites_map' do
+    let(:status)  { Fabricate(:status) }
+    let(:account) { Fabricate(:account) }
+
+    subject { Status.favourites_map([status], account) }
+
+    it 'returns a hash' do
+      expect(subject).to be_a Hash
+    end
+
+    it 'contains true value' do
+      Fabricate(:favourite, status: status, account: account)
+      expect(subject[status.id]).to be true
+    end
+  end
+
+  describe '.reblogs_map' do
+    let(:status)  { Fabricate(:status) }
+    let(:account) { Fabricate(:account) }
+
+    subject { Status.reblogs_map([status], account) }
+
+    it 'returns a hash' do
+      expect(subject).to be_a Hash
+    end
+
+    it 'contains true value' do
+      Fabricate(:status, account: account, reblog: status)
+      expect(subject[status.id]).to be true
+    end
+  end
+
   describe '.local_only' do
     it 'returns only statuses from local accounts' do
       local_account = Fabricate(:account, domain: nil)

spec/services/notify_service_spec.rb

@@ -7,10 +7,50 @@ RSpec.describe NotifyService do
 
   let(:user) { Fabricate(:user) }
   let(:recipient) { user.account }
-  let(:activity) { Fabricate(:follow, target_account: recipient) }
+  let(:sender) { Fabricate(:account) }
+  let(:activity) { Fabricate(:follow, account: sender, target_account: recipient) }
 
   it { is_expected.to change(Notification, :count).by(1) }
 
+  it 'does not notify when sender is blocked' do
+    recipient.block!(sender)
+    is_expected.to_not change(Notification, :count)
+  end
+
+  it 'does not notify when sender is silenced and not followed' do
+    sender.update(silenced: true)
+    is_expected.to_not change(Notification, :count)
+  end
+
+  it 'does not notify when recipient is suspended' do
+    recipient.update(suspended: true)
+    is_expected.to_not change(Notification, :count)
+  end
+
+  context do
+    let(:asshole)  { Fabricate(:account, username: 'asshole') }
+    let(:reply_to) { Fabricate(:status, account: asshole) }
+    let(:activity) { Fabricate(:mention, account: recipient, status: Fabricate(:status, account: sender, thread: reply_to)) }
+
+    it 'does not notify when conversation is muted' do
+      recipient.mute_conversation!(activity.status.conversation)
+      is_expected.to_not change(Notification, :count)
+    end
+
+    it 'does not notify when it is a reply to a blocked user' do
+      recipient.block!(asshole)
+      is_expected.to_not change(Notification, :count)
+    end
+  end
+
+  context do
+    let(:sender) { recipient }
+
+    it 'does not notify when recipient is the sender' do
+      is_expected.to_not change(Notification, :count)
+    end
+  end
+
   describe 'email' do
     before do
       ActionMailer::Base.deliveries.clear