add API routes for comment likes

app/controllers/api/v1/likes_controller.rb

@@ -23,7 +23,10 @@ module Api
         post = post_service.find!(params.require(:post_id))
         raise ActiveRecord::RecordInvalid unless post.public? || private_read?
 
-        likes_query = like_service.find_for_post(params[:post_id])
+        likes_query = find_likes
+
+        return unless likes_query
+
         likes_page = index_pager(likes_query).response
         likes_page[:data] = likes_page[:data].map {|x| like_json(x) }
         render_paged_api_response likes_page
@@ -33,31 +36,42 @@ module Api
         post = post_service.find!(params.require(:post_id))
         raise ActiveRecord::RecordInvalid unless post.public? || private_read?
 
-        like_service.create_for_post(params[:post_id])
+        if params[:comment_id].present?
+          create_for_comment
+        else
+          create_for_post
+        end
       rescue ActiveRecord::RecordInvalid => e
         if e.message == "Validation failed: Target has already been taken"
           return render_error 409, "Like already exists"
         end
 
         raise
-      else
-        head :no_content
       end
 
       def destroy
         post = post_service.find!(params.require(:post_id))
         raise ActiveRecord::RecordInvalid unless post.public? || private_read?
 
-        success = like_service.unlike_post(params[:post_id])
+        if params[:comment_id].present?
-        if success
+          destroy_for_comment
-          head :no_content
         else
-          render_error 410, "Like doesn’t exist"
+          destroy_for_post
         end
       end
 
       private
 
+      def find_likes
+        if params[:comment_id].present?
+          return unless comment_and_post_validate(params[:post_id], params[:comment_id])
+
+          like_service.find_for_comment(params[:comment_id])
+        else
+          like_service.find_for_post(params[:post_id])
+        end
+      end
+
       def like_service
         @like_service ||= LikeService.new(current_user)
       end
@@ -66,9 +80,67 @@ module Api
         @post_service ||= PostService.new(current_user)
       end
 
+      def comment_service
+        @comment_service ||= CommentService.new(current_user)
+      end
+
       def like_json(like)
         LikesPresenter.new(like).as_api_json
       end
+
+      def create_for_post
+        like_service.create_for_post(params[:post_id])
+
+        head :no_content
+      end
+
+      def create_for_comment
+        return unless comment_and_post_validate(params[:post_id], params[:comment_id])
+
+        like_service.create_for_comment(params[:comment_id])
+
+        head :no_content
+      end
+
+      def destroy_for_post
+        if like_service.unlike_post(params[:post_id])
+          head :no_content
+        else
+          render_error 410, "Like doesn’t exist"
+        end
+      end
+
+      def destroy_for_comment
+        return unless comment_and_post_validate(params[:post_id], params[:comment_id])
+
+        if like_service.unlike_comment(params[:comment_id])
+          head :no_content
+        else
+          render_error 410, "Like doesn’t exist"
+        end
+      end
+
+      def comment_and_post_validate(post_guid, comment_guid)
+        if !comment_exists(comment_guid) || !comment_is_for_post(post_guid, comment_guid)
+          render_error 404, "Comment not found for the given post"
+          false
+        else
+          true
+        end
+      end
+
+      def comment_exists(comment_guid)
+        comment = comment_service.find!(comment_guid)
+        comment ? true : false
+      rescue ActiveRecord::RecordNotFound
+        false
+      end
+
+      def comment_is_for_post(post_guid, comment_guid)
+        comments = comment_service.find_for_post(post_guid)
+        comment = comments.find {|comment| comment[:guid] == comment_guid }
+        comment ? true : false
+      end
     end
   end
 end

config/routes.rb

@@ -231,7 +231,8 @@ Rails.application.routes.draw do
     resources :photos, only: %i[show index create destroy]
     resources :posts, only: %i[show create destroy] do
       resources :comments, only: %i[create index destroy] do
-        post "report" => "comments#report"
+        resource :likes, only: %i[show create destroy]
+        post :report
       end
       resource :reshares, only: %i[show create]
       resource :likes, only: %i[show create destroy]

spec/integration/api/comments_controller_spec.rb

@@ -135,7 +135,7 @@ describe Api::V1::CommentsController do
     end
   end
 
-  describe "#read" do
+  describe "#index" do
     before do
       @comment_text1 = "This is a comment"
       @comment_text2 = "This is a comment 2"

spec/integration/api/likes_controller_spec.rb

@@ -108,6 +108,88 @@ describe Api::V1::LikesController do
         expect(response.status).to eq(401)
       end
     end
+
+    context "for comments" do
+      before do
+        comment = comment_service.create(@status.guid, "This is a comment")
+        @comment_guid = comment.guid
+      end
+
+      context "with right post and comment id" do
+        it "succeeds in getting empty likes" do
+          get(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token_minimum_scopes}
+          )
+          expect(response.status).to eq(200)
+          likes = response_body(response)
+          expect(likes.length).to eq(0)
+        end
+
+        it "succeeds in getting comment likes" do
+          like_service(bob).create_for_comment(@comment_guid)
+          like_service(auth.user).create_for_comment(@comment_guid)
+          like_service(alice).create_for_comment(@comment_guid)
+          get(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token_minimum_scopes}
+          )
+          expect(response.status).to eq(200)
+          likes = response_body(response)
+          expect(likes.length).to eq(3)
+          confirm_like_format(likes, alice)
+          confirm_like_format(likes, bob)
+          confirm_like_format(likes, auth.user)
+
+          expect_to_match_json_schema(likes.to_json, "#/definitions/likes")
+        end
+      end
+
+      context "with wrong post id" do
+        it "fails at getting likes" do
+          get(
+            api_v1_post_comment_likes_path(post_id: "badguid", comment_id: @comment_guid),
+            params: {access_token: access_token}
+          )
+          confirm_api_error(response, 404, "Post with provided guid could not be found")
+        end
+      end
+
+      context "with wrong comment id" do
+        it "fails at getting likes" do
+          get(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: "badguid"),
+            params: {access_token: access_token}
+          )
+          confirm_api_error(response, 404, "Comment not found for the given post")
+        end
+      end
+
+      context "with improper credentials" do
+        before do
+          comment = comment_service(auth_public_only.user).create(@private_status.guid, "This is a comment")
+          @comment_guid = comment.guid
+        end
+
+        context "without private:read scope in token" do
+          it "fails at getting likes" do
+            get(
+              api_v1_post_comment_likes_path(post_id: @private_status.guid, comment_id: @comment_guid),
+              params: {access_token: access_token_public_only}
+            )
+            confirm_api_error(response, 422, "User is not allowed to like")
+          end
+        end
+
+        it "fails without valid token" do
+          get(
+            api_v1_post_comment_likes_path(post_id: @private_status.guid, comment_id: @comment_guid),
+            params: {access_token: invalid_token}
+          )
+          expect(response.status).to eq(401)
+        end
+      end
+    end
   end
 
   describe "#create" do
@@ -177,9 +259,98 @@ describe Api::V1::LikesController do
         expect(response.status).to eq(401)
       end
     end
+
+    context "for comments" do
+      before do
+        comment = comment_service.create(@status.guid, "This is a comment")
+        @comment_guid = comment.guid
+      end
+
+      context "with right post and comment id" do
+        it "succeeds in liking comment" do
+          post(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token}
+          )
+          expect(response.status).to eq(204)
+          likes = like_service.find_for_comment(@comment_guid)
+          expect(likes.length).to eq(1)
+          expect(likes[0].author.id).to eq(auth.user.person.id)
+        end
+
+        it "fails in liking already liked comment" do
+          post(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token}
+          )
+          expect(response.status).to eq(204)
+
+          post(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token}
+          )
+          confirm_api_error(response, 409, "Like already exists")
+
+          likes = like_service.find_for_comment(@comment_guid)
+          expect(likes.length).to eq(1)
+          expect(likes[0].author.id).to eq(auth.user.person.id)
+        end
+      end
+
+      context "with wrong post id" do
+        it "fails at liking comment" do
+          post(
+            api_v1_post_comment_likes_path(post_id: 99_999_999, comment_id: @comment_guid),
+            params: {access_token: access_token}
+          )
+          confirm_api_error(response, 404, "Post with provided guid could not be found")
+        end
+      end
+
+      context "with wrong comment id" do
+        it "fails at liking comment" do
+          post(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: 99_999_999),
+            params: {access_token: access_token}
+          )
+          confirm_api_error(response, 404, "Comment not found for the given post")
+        end
+      end
+
+      context "with improper credentials" do
+        before do
+          comment = comment_service(auth_public_only.user).create(@private_status.guid, "This is a comment")
+          @comment_guid = comment.guid
+        end
+
+        it "fails in liking private comment without private:read" do
+          post(
+            api_v1_post_comment_likes_path(post_id: @private_status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token_public_only}
+          )
+          expect(response.status).to eq(422)
+        end
+
+        it "fails in liking post without interactions" do
+          post(
+            api_v1_post_comment_likes_path(post_id: @private_status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token_minimum_scopes}
+          )
+          expect(response.status).to eq(403)
+        end
+
+        it "fails without valid token" do
+          get(
+            api_v1_post_comment_likes_path(post_id: @private_status.guid, comment_id: @comment_guid),
+            params: {access_token: invalid_token}
+          )
+          expect(response.status).to eq(401)
+        end
+      end
+    end
   end
 
-  describe "#delete" do
+  describe "#destroy" do
     before do
       like_service.create_for_post(@status.guid)
     end
@@ -250,6 +421,96 @@ describe Api::V1::LikesController do
         expect(response.status).to eq(401)
       end
     end
+
+    context "for comments" do
+      before do
+        comment = comment_service.create(@status.guid, "This is a comment")
+        @comment_guid = comment.guid
+        like_service.create_for_comment(@comment_guid)
+      end
+
+      context "with right post and comment id" do
+        it "succeeds at unliking comment" do
+          delete(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token}
+          )
+          expect(response.status).to eq(204)
+          likes = like_service.find_for_comment(@comment_guid)
+          expect(likes.length).to eq(0)
+        end
+
+        it "fails at unliking comment user didn't like" do
+          delete(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token}
+          )
+          expect(response.status).to eq(204)
+
+          delete(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token}
+          )
+          confirm_api_error(response, 410, "Like doesn’t exist")
+
+          likes = like_service.find_for_comment(@comment_guid)
+          expect(likes.length).to eq(0)
+        end
+      end
+
+      context "with wrong post id" do
+        it "fails at unliking comment" do
+          delete(
+            api_v1_post_comment_likes_path(post_id: 99_999_999, comment_id: @comment_guid),
+            params: {access_token: access_token}
+          )
+          confirm_api_error(response, 404, "Post with provided guid could not be found")
+        end
+      end
+
+      context "with wrong comment id" do
+        it "fails at unliking comment" do
+          delete(
+            api_v1_post_comment_likes_path(post_id: @status.guid, comment_id: 99_999_999),
+            params: {access_token: access_token}
+          )
+          confirm_api_error(response, 404, "Comment not found for the given post")
+        end
+      end
+
+      context "with improper credentials" do
+        before do
+          comment = comment_service(auth_public_only.user).create(@private_status.guid, "This is a comment")
+          @comment_guid = comment.guid
+        end
+
+        it "fails at unliking private post without private:read" do
+          like_service(auth_public_only.user).create_for_post(@private_status.guid)
+          delete(
+            api_v1_post_comment_likes_path(post_id: @private_status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token}
+          )
+          confirm_api_error(response, 404, "Post with provided guid could not be found")
+        end
+
+        it "fails in unliking post without interactions" do
+          like_service(auth_minimum_scopes.user).create_for_post(@status.guid)
+          delete(
+            api_v1_post_comment_likes_path(post_id: @private_status.guid, comment_id: @comment_guid),
+            params: {access_token: access_token_minimum_scopes}
+          )
+          expect(response.status).to eq(403)
+        end
+
+        it "fails without valid token" do
+          get(
+            api_v1_post_comment_likes_path(post_id: @private_status.guid, comment_id: @comment_guid),
+            params: {access_token: invalid_token}
+          )
+          expect(response.status).to eq(401)
+        end
+      end
+    end
   end
 
   private
@@ -268,6 +529,10 @@ describe Api::V1::LikesController do
     LikeService.new(user)
   end
 
+  def comment_service(user=auth.user)
+    CommentService.new(user)
+  end
+
   def response_body(response)
     JSON.parse(response.body)
   end