Add GraphQL API to Destroy Saved Reply

app/graphql/mutations/saved_replies/base.rb

@@ -5,7 +5,7 @@ module Mutations
     class Base < BaseMutation
       field :saved_reply, Types::SavedReplyType,
             null: true,
-            description: 'Updated saved reply.'
+            description: 'Saved reply after mutation.'
 
       private
 

app/graphql/mutations/saved_replies/destroy.rb

+# frozen_string_literal: true
+
+module Mutations
+  module SavedReplies
+    class Destroy < Base
+      graphql_name 'SavedReplyDestroy'
+
+      authorize :destroy_saved_replies
+
+      argument :id, Types::GlobalIDType[::Users::SavedReply],
+               required: true,
+               description: copy_field_description(Types::SavedReplyType, :id)
+
+      def resolve(id:)
+        raise Gitlab::Graphql::Errors::ResourceNotAvailable, 'Feature disabled' unless feature_enabled?
+
+        saved_reply = authorized_find!(id)
+        result = ::Users::SavedReplies::DestroyService.new(saved_reply: saved_reply).execute
+        present_result(result)
+      end
+    end
+  end
+end

app/graphql/mutations/saved_replies/update.rb

@@ -23,7 +23,7 @@ module Mutations
         raise Gitlab::Graphql::Errors::ResourceNotAvailable, 'Feature disabled' unless feature_enabled?
 
         saved_reply = authorized_find!(id)
-        result = ::Users::SavedReplies::UpdateService.new(current_user: current_user, saved_reply: saved_reply, name: name, content: content).execute
+        result = ::Users::SavedReplies::UpdateService.new(saved_reply: saved_reply, name: name, content: content).execute
         present_result(result)
       end
     end

app/graphql/types/mutation_type.rb

@@ -131,6 +131,7 @@ module Types
     mount_mutation Mutations::WorkItems::Update
     mount_mutation Mutations::SavedReplies::Create
     mount_mutation Mutations::SavedReplies::Update
+    mount_mutation Mutations::SavedReplies::Destroy
   end
 end
 

app/policies/user_policy.rb

@@ -25,6 +25,7 @@ class UserPolicy < BasePolicy
     enable :update_user_status
     enable :create_saved_replies
     enable :update_saved_replies
+    enable :destroy_saved_replies
     enable :read_user_personal_access_tokens
     enable :read_group_count
     enable :read_user_groups

app/services/users/saved_replies/destroy_service.rb

+# frozen_string_literal: true
+
+module Users
+  module SavedReplies
+    class DestroyService
+      def initialize(saved_reply:)
+        @saved_reply = saved_reply
+      end
+
+      def execute
+        if saved_reply.destroy
+          ServiceResponse.success(payload: { saved_reply: saved_reply })
+        else
+          ServiceResponse.error(message: saved_reply.errors.full_messages)
+        end
+      end
+
+      private
+
+      attr_reader :saved_reply
+    end
+  end
+end

app/services/users/saved_replies/update_service.rb

@@ -3,8 +3,7 @@
 module Users
   module SavedReplies
     class UpdateService
-      def initialize(current_user:, saved_reply:, name:, content:)
-        @current_user = current_user
+      def initialize(saved_reply:, name:, content:)
         @saved_reply = saved_reply
         @name = name
         @content = content
@@ -20,7 +19,7 @@ module Users
 
       private
 
-      attr_reader :current_user, :saved_reply, :name, :content
+      attr_reader :saved_reply, :name, :content
     end
   end
 end

doc/api/graphql/reference/index.md

@@ -4261,7 +4261,26 @@ Input type: `SavedReplyCreateInput`
 | ---- | ---- | ----------- |
 | <a id="mutationsavedreplycreateclientmutationid"></a>`clientMutationId` | [`String`](#string) | A unique identifier for the client performing the mutation. |
 | <a id="mutationsavedreplycreateerrors"></a>`errors` | [`[String!]!`](#string) | Errors encountered during execution of the mutation. |
-| <a id="mutationsavedreplycreatesavedreply"></a>`savedReply` | [`SavedReply`](#savedreply) | Updated saved reply. |
+| <a id="mutationsavedreplycreatesavedreply"></a>`savedReply` | [`SavedReply`](#savedreply) | Saved reply after mutation. |
+
+### `Mutation.savedReplyDestroy`
+
+Input type: `SavedReplyDestroyInput`
+
+#### Arguments
+
+| Name | Type | Description |
+| ---- | ---- | ----------- |
+| <a id="mutationsavedreplydestroyclientmutationid"></a>`clientMutationId` | [`String`](#string) | A unique identifier for the client performing the mutation. |
+| <a id="mutationsavedreplydestroyid"></a>`id` | [`UsersSavedReplyID!`](#userssavedreplyid) | Global ID of the saved reply. |
+
+#### Fields
+
+| Name | Type | Description |
+| ---- | ---- | ----------- |
+| <a id="mutationsavedreplydestroyclientmutationid"></a>`clientMutationId` | [`String`](#string) | A unique identifier for the client performing the mutation. |
+| <a id="mutationsavedreplydestroyerrors"></a>`errors` | [`[String!]!`](#string) | Errors encountered during execution of the mutation. |
+| <a id="mutationsavedreplydestroysavedreply"></a>`savedReply` | [`SavedReply`](#savedreply) | Saved reply after mutation. |
 
 ### `Mutation.savedReplyUpdate`
 
@@ -4282,7 +4301,7 @@ Input type: `SavedReplyUpdateInput`
 | ---- | ---- | ----------- |
 | <a id="mutationsavedreplyupdateclientmutationid"></a>`clientMutationId` | [`String`](#string) | A unique identifier for the client performing the mutation. |
 | <a id="mutationsavedreplyupdateerrors"></a>`errors` | [`[String!]!`](#string) | Errors encountered during execution of the mutation. |
-| <a id="mutationsavedreplyupdatesavedreply"></a>`savedReply` | [`SavedReply`](#savedreply) | Updated saved reply. |
+| <a id="mutationsavedreplyupdatesavedreply"></a>`savedReply` | [`SavedReply`](#savedreply) | Saved reply after mutation. |
 
 ### `Mutation.scanExecutionPolicyCommit`
 

spec/graphql/mutations/saved_replies/destroy_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Mutations::SavedReplies::Destroy do
+  let_it_be(:current_user) { create(:user) }
+  let_it_be(:saved_reply) { create(:saved_reply, user: current_user) }
+
+  let(:mutation) { described_class.new(object: nil, context: { current_user: current_user }, field: nil) }
+
+  describe '#resolve' do
+    subject(:resolve) do
+      mutation.resolve(id: saved_reply.to_global_id)
+    end
+
+    context 'when feature is disabled' do
+      before do
+        stub_feature_flags(saved_replies: false)
+      end
+
+      it 'raises Gitlab::Graphql::Errors::ResourceNotAvailable' do
+        expect { subject }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable, 'Feature disabled')
+      end
+    end
+
+    context 'when feature is enabled for current user' do
+      before do
+        stub_feature_flags(saved_replies: current_user)
+      end
+
+      context 'when service fails to delete a new saved reply' do
+        before do
+          saved_reply.destroy!
+        end
+
+        it 'raises Gitlab::Graphql::Errors::ResourceNotAvailable' do
+          expect { subject }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable)
+        end
+      end
+
+      context 'when service successfully deletes the saved reply' do
+        it { expect(subject[:errors]).to be_empty }
+      end
+    end
+  end
+end

spec/services/users/saved_replies/destroy_service_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Users::SavedReplies::DestroyService do
+  describe '#execute' do
+    let!(:saved_reply) { create(:saved_reply) }
+
+    subject { described_class.new(saved_reply: saved_reply).execute }
+
+    context 'when destroy fails' do
+      before do
+        allow(saved_reply).to receive(:destroy).and_return(false)
+      end
+
+      it 'does not remove Saved Reply from database' do
+        expect { subject }.not_to change(::Users::SavedReply, :count)
+      end
+
+      it { is_expected.not_to be_success }
+    end
+
+    context 'when destroy succeeds' do
+      it { is_expected.to be_success }
+
+      it 'removes Saved Reply from database' do
+        expect { subject }.to change(::Users::SavedReply, :count).by(-1)
+      end
+
+      it 'returns saved reply' do
+        expect(subject[:saved_reply]).to eq(saved_reply)
+      end
+    end
+  end
+end

spec/services/users/saved_replies/update_service_spec.rb

@@ -9,7 +9,7 @@ RSpec.describe Users::SavedReplies::UpdateService do
     let_it_be(:other_saved_reply) { create(:saved_reply, user: current_user) }
     let_it_be(:saved_reply_from_other_user) { create(:saved_reply) }
 
-    subject { described_class.new(current_user: current_user, saved_reply: saved_reply, name: name, content: content).execute }
+    subject { described_class.new(saved_reply: saved_reply, name: name, content: content).execute }
 
     context 'when update fails' do
       let(:name) { other_saved_reply.name }