Implement JSON status for importers behind feature flag

- introduce new_import_ui feature flag
- implement specialized serializers

app/controllers/import/base_controller.rb

 # frozen_string_literal: true
 
 class Import::BaseController < ApplicationController
+  include ActionView::Helpers::SanitizeHelper
+
   before_action :import_rate_limit, only: [:create]
 
+  def status
+    respond_to do |format|
+      format.json do
+        render json: { imported_projects: serialized_imported_projects,
+                       provider_repos: serialized_provider_repos,
+                       incompatible_repos: serialized_incompatible_repos,
+                       namespaces: serialized_namespaces }
+      end
+      format.html
+    end
+  end
+
+  def realtime_changes
+    Gitlab::PollingInterval.set_header(response, interval: 3_000)
+
+    render json: already_added_projects.to_json(only: [:id], methods: [:import_status])
+  end
+
+  protected
+
+  def importable_repos
+    raise NotImplementedError
+  end
+
+  def incompatible_repos
+    []
+  end
+
+  def provider_name
+    raise NotImplementedError
+  end
+
+  def provider_url
+    raise NotImplementedError
+  end
+
   private
 
+  def sanitized_filter_param
+    @filter ||= sanitize(params[:filter])
+  end
+
+  def filtered(collection)
+    return collection unless sanitized_filter_param
+
+    collection.select { |item| item[filter_attribute].include?(sanitized_filter_param) }
+  end
+
+  def serialized_provider_repos
+    Import::ProviderRepoSerializer.new(current_user: current_user).represent(importable_repos, provider: provider_name, provider_url: provider_url)
+  end
+
+  def serialized_incompatible_repos
+    Import::ProviderRepoSerializer.new(current_user: current_user).represent(incompatible_repos, provider: provider_name, provider_url: provider_url)
+  end
+
+  def serialized_imported_projects
+    ProjectSerializer.new.represent(already_added_projects, serializer: :import, provider_url: provider_url)
+  end
+
+  def already_added_projects
+    @already_added_projects ||= filtered(find_already_added_projects(provider_name))
+  end
+
+  def serialized_namespaces
+    NamespaceSerializer.new.represent(namespaces)
+  end
+
+  def already_added_project_names
+    @already_added_projects_names ||= already_added_projects.pluck(:import_source) # rubocop:disable CodeReuse/ActiveRecord
+  end
+
+  def namespaces
+    current_user.manageable_groups_with_routes
+  end
+
   # rubocop: disable CodeReuse/ActiveRecord
   def find_already_added_projects(import_type)
     current_user.created_projects.where(import_type: import_type).with_import_state

app/controllers/import/bitbucket_controller.rb

 # frozen_string_literal: true
 
 class Import::BitbucketController < Import::BaseController
+  extend ::Gitlab::Utils::Override
+
   include ActionView::Helpers::SanitizeHelper
 
   before_action :verify_bitbucket_import_enabled
@@ -10,7 +12,7 @@ class Import::BitbucketController < Import::BaseController
   rescue_from Bitbucket::Error::Unauthorized, with: :bitbucket_unauthorized
 
   def callback
-    response = client.auth_code.get_token(params[:code], redirect_uri: users_import_bitbucket_callback_url)
+    response = oauth_client.auth_code.get_token(params[:code], redirect_uri: users_import_bitbucket_callback_url)
 
     session[:bitbucket_token]         = response.token
     session[:bitbucket_expires_at]    = response.expires_at
@@ -22,9 +24,12 @@ class Import::BitbucketController < Import::BaseController
 
   # rubocop: disable CodeReuse/ActiveRecord
   def status
+    if Feature.enabled?(:new_import_ui)
+      return super
+    end
+
     bitbucket_client = Bitbucket::Client.new(credentials)
     repos = bitbucket_client.repos(filter: sanitized_filter_param)
-
     @repos, @incompatible_repos = repos.partition { |repo| repo.valid? }
 
     @already_added_projects = find_already_added_projects('bitbucket')
@@ -38,6 +43,10 @@ class Import::BitbucketController < Import::BaseController
     render json: find_jobs('bitbucket')
   end
 
+  def realtime_changes
+    super
+  end
+
   def create
     bitbucket_client = Bitbucket::Client.new(credentials)
 
@@ -59,7 +68,7 @@ class Import::BitbucketController < Import::BaseController
       project = Gitlab::BitbucketImport::ProjectCreator.new(repo, project_name, target_namespace, current_user, credentials).execute
 
       if project.persisted?
-        render json: ProjectSerializer.new.represent(project)
+        render json: ProjectSerializer.new.represent(project, serializer: :import)
       else
         render json: { errors: project_save_error(project) }, status: :unprocessable_entity
       end
@@ -68,16 +77,50 @@ class Import::BitbucketController < Import::BaseController
     end
   end
 
+  protected
+
+  # rubocop: disable CodeReuse/ActiveRecord
+  override :importable_repos
+  def importable_repos
+    already_added_projects_names = already_added_projects.pluck(:import_source)
+
+    bitbucket_repos.reject { |repo| (already_added_projects_names.include? repo.full_name) || !repo.valid? }
+  end
+  # rubocop: enable CodeReuse/ActiveRecord
+
+  override :incompatible_repos
+  def incompatible_repos
+    bitbucket_repos.reject { |repo| repo.valid? }
+  end
+
+  override :provider_name
+  def provider_name
+    :bitbucket
+  end
+
+  override :provider_url
+  def provider_url
+    provider.url
+  end
+
   private
 
-  def client
-    @client ||= OAuth2::Client.new(provider.app_id, provider.app_secret, options)
+  def oauth_client
+    @oauth_client ||= OAuth2::Client.new(provider.app_id, provider.app_secret, options)
   end
 
   def provider
     Gitlab::Auth::OAuth::Provider.config_for('bitbucket')
   end
 
+  def client
+    @client ||= Bitbucket::Client.new(credentials)
+  end
+
+  def bitbucket_repos
+    @bitbucket_repos ||= client.repos(filter: sanitized_filter_param).to_a
+  end
+
   def options
     OmniAuth::Strategies::Bitbucket.default_options[:client_options].deep_symbolize_keys
   end
@@ -91,7 +134,7 @@ class Import::BitbucketController < Import::BaseController
   end
 
   def go_to_bitbucket_for_permissions
-    redirect_to client.auth_code.authorize_url(redirect_uri: users_import_bitbucket_callback_url)
+    redirect_to oauth_client.auth_code.authorize_url(redirect_uri: users_import_bitbucket_callback_url)
   end
 
   def bitbucket_unauthorized

app/controllers/import/bitbucket_server_controller.rb

 # frozen_string_literal: true
 
 class Import::BitbucketServerController < Import::BaseController
+  extend ::Gitlab::Utils::Override
+
   include ActionView::Helpers::SanitizeHelper
 
   before_action :verify_bitbucket_server_import_enabled
@@ -24,7 +26,7 @@ class Import::BitbucketServerController < Import::BaseController
   end
 
   def create
-    repo = bitbucket_client.repo(@project_key, @repo_slug)
+    repo = client.repo(@project_key, @repo_slug)
 
     unless repo
       return render json: { errors: _("Project %{project_repo} could not be found") % { project_repo: "#{@project_key}/#{@repo_slug}" } }, status: :unprocessable_entity
@@ -38,7 +40,7 @@ class Import::BitbucketServerController < Import::BaseController
       project = Gitlab::BitbucketServerImport::ProjectCreator.new(@project_key, @repo_slug, repo, project_name, target_namespace, current_user, credentials).execute
 
       if project.persisted?
-        render json: ProjectSerializer.new.represent(project)
+        render json: ProjectSerializer.new.represent(project, serializer: :import)
       else
         render json: { errors: project_save_error(project) }, status: :unprocessable_entity
       end
@@ -59,7 +61,16 @@ class Import::BitbucketServerController < Import::BaseController
 
   # rubocop: disable CodeReuse/ActiveRecord
   def status
-    @collection = bitbucket_client.repos(page_offset: page_offset, limit: limit_per_page, filter: sanitized_filter_param)
+    if Feature.enabled?(:new_import_ui)
+      begin
+        return super
+      rescue BitbucketServer::Connection::ConnectionError => error
+        render json: { error: _("Unable to connect to server: %{error}") % { error: error } }, status: :unprocessable_entity
+        return
+      end
+    end
+
+    @collection = client.repos(page_offset: page_offset, limit: limit_per_page, filter: sanitized_filter_param)
     @repos, @incompatible_repos = @collection.partition { |repo| repo.valid? }
 
     # Use the import URL to filter beyond what BaseService#find_already_added_projects
@@ -78,6 +89,38 @@ class Import::BitbucketServerController < Import::BaseController
     render json: find_jobs('bitbucket_server')
   end
 
+  def realtime_changes
+    super
+  end
+
+  protected
+
+  # rubocop: disable CodeReuse/ActiveRecord
+  override :importable_repos
+  def importable_repos
+    # Use the import URL to filter beyond what BaseService#find_already_added_projects
+    already_added_projects = filter_added_projects('bitbucket_server', bitbucket_repos.map(&:browse_url))
+    already_added_projects_names = already_added_projects.pluck(:import_source)
+
+    bitbucket_repos.reject { |repo| already_added_projects_names.include?(repo.browse_url) || !repo.valid? }
+  end
+  # rubocop: enable CodeReuse/ActiveRecord
+
+  override :incompatible_repos
+  def incompatible_repos
+    bitbucket_repos.reject { |repo| repo.valid? }
+  end
+
+  override :provider_name
+  def provider_name
+    :bitbucket_server
+  end
+
+  override :provider_url
+  def provider_url
+    session[bitbucket_server_url_key]
+  end
+
   private
 
   # rubocop: disable CodeReuse/ActiveRecord
@@ -86,8 +129,12 @@ class Import::BitbucketServerController < Import::BaseController
   end
   # rubocop: enable CodeReuse/ActiveRecord
 
-  def bitbucket_client
-    @bitbucket_client ||= BitbucketServer::Client.new(credentials)
+  def client
+    @client ||= BitbucketServer::Client.new(credentials)
+  end
+
+  def bitbucket_repos
+    @bitbucket_repos ||= client.repos(page_offset: page_offset, limit: limit_per_page, filter: sanitized_filter_param).to_a
   end
 
   def validate_import_params

app/controllers/import/fogbugz_controller.rb

 # frozen_string_literal: true
 
 class Import::FogbugzController < Import::BaseController
+  extend ::Gitlab::Utils::Override
+
   before_action :verify_fogbugz_import_enabled
   before_action :user_map, only: [:new_user_map, :create_user_map]
   before_action :verify_blocked_uri, only: :callback
@@ -48,6 +50,10 @@ class Import::FogbugzController < Import::BaseController
       return redirect_to new_import_fogbugz_path
     end
 
+    if Feature.enabled?(:new_import_ui)
+      return super
+    end
+
     @repos = client.repos
 
     @already_added_projects = find_already_added_projects('fogbugz')
@@ -57,6 +63,10 @@ class Import::FogbugzController < Import::BaseController
   end
   # rubocop: enable CodeReuse/ActiveRecord
 
+  def realtime_changes
+    super
+  end
+
   def jobs
     render json: find_jobs('fogbugz')
   end
@@ -69,12 +79,36 @@ class Import::FogbugzController < Import::BaseController
     project = Gitlab::FogbugzImport::ProjectCreator.new(repo, fb_session, current_user.namespace, current_user, umap).execute
 
     if project.persisted?
-      render json: ProjectSerializer.new.represent(project)
+      render json: ProjectSerializer.new.represent(project, serializer: :import)
     else
       render json: { errors: project_save_error(project) }, status: :unprocessable_entity
     end
   end
 
+  protected
+
+  # rubocop: disable CodeReuse/ActiveRecord
+  override :importable_repos
+  def importable_repos
+    repos = client.repos
+
+    already_added_projects = find_already_added_projects('fogbugz')
+    already_added_projects_names = already_added_projects.pluck(:import_source)
+
+    repos.reject { |repo| already_added_projects_names.include? repo.name }
+  end
+  # rubocop: enable CodeReuse/ActiveRecord
+
+  override :provider_name
+  def provider_name
+    :fogbugz
+  end
+
+  override :provider_url
+  def provider_url
+    session[:fogbugz_uri]
+  end
+
   private
 
   def client

app/controllers/import/github_controller.rb

@@ -76,7 +76,7 @@ class Import::GithubController < Import::BaseController
 
   def serialized_provider_repos
     repos = client_repos.reject { |repo| already_added_project_names.include? repo.full_name }
-    ProviderRepoSerializer.new(current_user: current_user).represent(repos, provider: provider, provider_url: provider_url)
+    Import::ProviderRepoSerializer.new(current_user: current_user).represent(repos, provider: provider, provider_url: provider_url)
   end
 
   def serialized_namespaces

app/serializers/import/base_provider_repo_entity.rb

+# frozen_string_literal: true
+
+class Import::BaseProviderRepoEntity < Grape::Entity
+  expose :id
+  expose :full_name
+  expose :owner_name
+  expose :sanitized_name
+  expose :provider_link
+end

app/serializers/import/bitbucket_provider_repo_entity.rb

+# frozen_string_literal: true
+
+class Import::BitbucketProviderRepoEntity < Import::BaseProviderRepoEntity
+  include ImportHelper
+
+  expose :id, override: true do |repo|
+    repo.full_name
+  end
+
+  expose :owner_name, override: true do |repo|
+    repo.owner
+  end
+
+  expose :sanitized_name, override: true do |repo|
+    repo.name.gsub(/[^\s\w.-]/, '')
+  end
+
+  expose :provider_link, override: true do |repo, options|
+    repo.clone_url
+  end
+end

app/serializers/import/bitbucket_server_provider_repo_entity.rb

+# frozen_string_literal: true
+
+class Import::BitbucketServerProviderRepoEntity < Import::BitbucketProviderRepoEntity
+  expose :owner_name, override: true do
+    ''
+  end
+
+  expose :provider_link, override: true do |repo, options|
+    repo.browse_url
+  end
+end

app/serializers/import/fogbugz_provider_repo_entity.rb

+# frozen_string_literal: true
+
+class Import::FogbugzProviderRepoEntity < Import::BaseProviderRepoEntity
+  include ImportHelper
+
+  expose :full_name, override: true do |repo|
+    repo.name
+  end
+
+  expose :owner_name, override: true do
+    ''
+  end
+
+  expose :sanitized_name, override: true do |repo|
+    repo.safe_name
+  end
+
+  expose :provider_link, override: true do |repo, options|
+    provider_project_link_url(options[:provider_url], repo.path)
+  end
+end

app/serializers/provider_repo_entity.rb → app/serializers/import/githubish_provider_repo_entity.rb

 # frozen_string_literal: true
 
-class ProviderRepoEntity < Grape::Entity
+class Import::GithubishProviderRepoEntity < Import::BaseProviderRepoEntity
   include ImportHelper
 
-  expose :id
-  expose :full_name
-  expose :owner_name do |provider_repo, options|
+  expose :owner_name, override: true do |provider_repo, options|
     owner_name(provider_repo, options[:provider])
   end
 
-  expose :sanitized_name do |provider_repo|
+  expose :sanitized_name, override: true do |provider_repo|
     sanitize_project_name(provider_repo[:name])
   end
 
-  expose :provider_link do |provider_repo, options|
+  expose :provider_link, override: true do |provider_repo, options|
     provider_project_link_url(options[:provider_url], provider_repo[:full_name])
   end
 

app/serializers/import/provider_repo_serializer.rb

+# frozen_string_literal: true
+
+class Import::ProviderRepoSerializer < BaseSerializer
+  def represent(repo, opts = {})
+    entity =
+      case opts[:provider]
+      when :fogbugz
+        Import::FogbugzProviderRepoEntity
+      when :github, :gitea
+        Import::GithubishProviderRepoEntity
+      when :bitbucket
+        Import::BitbucketProviderRepoEntity
+      when :bitbucket_server
+        Import::BitbucketServerProviderRepoEntity
+      else
+        raise NotImplementedError
+      end
+
+    super(repo, opts, entity)
+  end
+end

app/serializers/provider_repo_serializer.rb

-# frozen_string_literal: true
-
-class ProviderRepoSerializer < BaseSerializer
-  entity ProviderRepoEntity
-end

config/routes/import.rb

@@ -31,6 +31,7 @@ namespace :import do
     get :status
     get :callback
     get :jobs
+    get :realtime_changes
   end
 
   resource :bitbucket_server, only: [:create, :new], controller: :bitbucket_server do
@@ -38,6 +39,7 @@ namespace :import do
     get :status
     get :callback
     get :jobs
+    get :realtime_changes
   end
 
   resource :google_code, only: [:create, :new], controller: :google_code do
@@ -53,6 +55,7 @@ namespace :import do
     get :status
     post :callback
     get :jobs
+    get :realtime_changes
 
     get   :new_user_map,    path: :user_map
     post  :create_user_map, path: :user_map

spec/controllers/import/bitbucket_controller_spec.rb

@@ -56,8 +56,20 @@ RSpec.describe Import::BitbucketController do
 
   describe "GET status" do
     before do
-      @repo = double(slug: 'vim', owner: 'asd', full_name: 'asd/vim', "valid?" => true)
+      @repo = double(name: 'vim', slug: 'vim', owner: 'asd', full_name: 'asd/vim', clone_url: "http://test.host/demo/url.git", "valid?" => true)
       assign_session_tokens
+      stub_feature_flags(new_import_ui: false)
+    end
+
+    it_behaves_like 'import controller with new_import_ui feature flag' do
+      before do
+        allow(controller).to receive(:provider_url).and_return('http://demobitbucket.org')
+      end
+
+      let(:repo) { @repo }
+      let(:repo_id) { @repo.full_name }
+      let(:import_source) { @repo.full_name }
+      let(:provider_name) { 'bitbucket' }
     end
 
     it "assigns variables" do

spec/controllers/import/bitbucket_server_controller_spec.rb

@@ -33,7 +33,7 @@ RSpec.describe Import::BitbucketServerController do
     let(:project_name) { "my-project_123" }
 
     before do
-      allow(controller).to receive(:bitbucket_client).and_return(client)
+      allow(controller).to receive(:client).and_return(client)
       repo = double(name: project_name)
       allow(client).to receive(:repo).with(project_key, repo_slug).and_return(repo)
       assign_session_tokens
@@ -139,12 +139,20 @@ RSpec.describe Import::BitbucketServerController do
     let(:repos) { instance_double(BitbucketServer::Collection) }
 
     before do
-      allow(controller).to receive(:bitbucket_client).and_return(client)
+      allow(controller).to receive(:client).and_return(client)
 
       @repo = double(slug: 'vim', project_key: 'asd', full_name: 'asd/vim', "valid?" => true, project_name: 'asd', browse_url: 'http://test', name: 'vim')
       @invalid_repo = double(slug: 'invalid', project_key: 'foobar', full_name: 'asd/foobar', "valid?" => false, browse_url: 'http://bad-repo')
       @created_repo = double(slug: 'created', project_key: 'existing', full_name: 'group/created', "valid?" => true, browse_url: 'http://existing')
       assign_session_tokens
+      stub_feature_flags(new_import_ui: false)
+    end
+
+    it_behaves_like 'import controller with new_import_ui feature flag' do
+      let(:repo) { @repo }
+      let(:repo_id) { @repo.full_name }
+      let(:import_source) { @repo.browse_url }
+      let(:provider_name) { 'bitbucket_server' }
     end
 
     it 'assigns repository categories' do

spec/controllers/import/fogbugz_controller_spec.rb

@@ -80,8 +80,16 @@ RSpec.describe Import::FogbugzController do
 
   describe 'GET status' do
     before do
-      @repo = OpenStruct.new(name: 'vim')
+      @repo = OpenStruct.new(id: 'demo', name: 'vim')
       stub_client(valid?: true)
+      stub_feature_flags(new_import_ui: false)
+    end
+
+    it_behaves_like 'import controller with new_import_ui feature flag' do
+      let(:repo) { @repo }
+      let(:repo_id) { @repo.id }
+      let(:import_source) { @repo.name }
+      let(:provider_name) { 'fogbugz' }
     end
 
     it 'assigns variables' do

spec/serializers/import/bitbucket_provider_repo_entity_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Import::BitbucketProviderRepoEntity do
+  let(:repo_data) do
+    {
+      "name" => "repo_name",
+      "full_name" => "owner/repo_name",
+      "links" => {
+        "clone" => [
+          {
+            "href" => "https://bitbucket.org/owner/repo_name",
+            "name" => "https"
+          }
+        ]
+      }
+    }
+  end
+  let(:repo) { Bitbucket::Representation::Repo.new(repo_data) }
+
+  subject { described_class.new(repo).as_json }
+
+  it_behaves_like 'exposes required fields for import entity'
+end

spec/serializers/import/bitbucket_server_provider_repo_entity_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Import::BitbucketServerProviderRepoEntity do
+  let(:repo_data) do
+    {
+      "name" => "demo",
+      "project" => {
+        "name" => "demo"
+      },
+      "links" => {
+        "self" => [
+          {
+            "href" => "http://local.bitbucket.server/demo/demo.git",
+            "name" => "http"
+          }
+        ]
+      }
+    }
+  end
+  let(:repo) { BitbucketServer::Representation::Repo.new(repo_data) }
+
+  subject { described_class.new(repo).as_json }
+
+  it_behaves_like 'exposes required fields for import entity'
+end

spec/serializers/import/fogbugz_provider_repo_entity_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Import::FogbugzProviderRepoEntity do
+  let(:repo_data) do
+    {
+      "ixProject" => "foo",
+      "sProject" => "demo"
+    }
+  end
+  let(:repo) { Gitlab::FogbugzImport::Repository.new(repo_data) }
+
+  subject { described_class.new(repo).as_json }
+
+  it_behaves_like 'exposes required fields for import entity'
+end

spec/serializers/import/githubish_provider_repo_entity_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Import::GithubishProviderRepoEntity do
+  let(:repo) do
+    {
+      id: 1,
+      full_name: 'full/name',
+      name: 'name',
+      owner: { login: 'owner' }
+    }
+  end
+
+  subject { described_class.new(repo).as_json }
+
+  it_behaves_like 'exposes required fields for import entity'
+end

spec/serializers/import/provider_repo_serializer_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+describe Import::ProviderRepoSerializer do
+  using RSpec::Parameterized::TableSyntax
+
+  describe '#represent' do
+    where(:provider, :class_name) do
+      :github           | 'Import::GithubishProviderRepoEntity'
+      :gitea            | 'Import::GithubishProviderRepoEntity'
+      :bitbucket        | 'Import::BitbucketProviderRepoEntity'
+      :bitbucket_server | 'Import::BitbucketServerProviderRepoEntity'
+      :fogbugz          | 'Import::FogbugzProviderRepoEntity'
+    end
+
+    with_them do
+      it 'uses correct entity class' do
+        opts = { provider: provider }
+        expect(class_name.constantize).to receive(:represent)
+        described_class.new.represent({}, opts)
+      end
+    end
+
+    it 'raises an error if invalid provider supplied' do
+      expect { described_class.new.represent({}, { provider: :invalid })}.to raise_error { NotImplementedError }
+    end
+  end
+end

spec/serializers/provider_repo_entity_spec.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-
-describe ProviderRepoEntity do
-  include ImportHelper
-
-  let(:provider_repo) { { id: 1, full_name: 'full/name', name: 'name', owner: { login: 'owner' } } }
-  let(:provider) { :github }
-  let(:provider_url) { 'https://github.com' }
-  let(:entity) { described_class.represent(provider_repo, provider: provider, provider_url: provider_url) }
-
-  describe '#as_json' do
-    subject { entity.as_json }
-
-    it 'includes required fields' do
-      expect(subject[:id]).to eq(provider_repo[:id])
-      expect(subject[:full_name]).to eq(provider_repo[:full_name])
-      expect(subject[:owner_name]).to eq(provider_repo[:owner][:login])
-      expect(subject[:sanitized_name]).to eq(sanitize_project_name(provider_repo[:name]))
-      expect(subject[:provider_link]).to eq(provider_project_link_url(provider_url, provider_repo[:full_name]))
-    end
-  end
-end

spec/support/shared_examples/controllers/import_controller_new_import_ui_shared_examples.rb

+# frozen_string_literal: true
+
+RSpec.shared_examples 'import controller with new_import_ui feature flag' do
+  include ImportSpecHelper
+
+  context 'with new_import_ui feature flag enabled' do
+    let(:group) { create(:group) }
+
+    before do
+      stub_feature_flags(new_import_ui: true)
+      group.add_owner(user)
+    end
+
+    it "returns variables for json request" do
+      project = create(:project, import_type: provider_name, creator_id: user.id)
+      stub_client(repos: [repo])
+
+      get :status, format: :json
+
+      expect(response).to have_gitlab_http_status(:ok)
+      expect(json_response.dig("imported_projects", 0, "id")).to eq(project.id)
+      expect(json_response.dig("provider_repos", 0, "id")).to eq(repo_id)
+      expect(json_response.dig("namespaces", 0, "id")).to eq(group.id)
+    end
+
+    it "does not show already added project" do
+      project = create(:project, import_type: provider_name, namespace: user.namespace, import_status: :finished, import_source: import_source)
+      stub_client(repos: [repo], orgs: [])
+
+      get :status, format: :json
+
+      expect(json_response.dig("imported_projects", 0, "id")).to eq(project.id)
+      expect(json_response.dig("provider_repos")).to eq([])
+    end
+  end
+end

spec/support/shared_examples/serializers/import/import_entity_shared_examples.rb

+# frozen_string_literal: true
+
+RSpec.shared_examples 'exposes required fields for import entity' do
+  describe 'exposes required fields' do
+    it 'exposes id' do
+      expect(subject).to include(:id)
+    end
+
+    it 'exposes full name' do
+      expect(subject).to include(:full_name)
+    end
+
+    it 'exposes owner name' do
+      expect(subject).to include(:owner_name)
+    end
+
+    it 'exposes sanitized name' do
+      expect(subject).to include(:sanitized_name)
+    end
+
+    it 'exposes provider link' do
+      expect(subject).to include(:provider_link)
+    end
+  end
+end