1 files changed, 74 insertions, 0 deletions
diff --git a/app/services/metrics/users_starred_dashboards/create_service.rb b/app/services/metrics/users_starred_dashboards/create_service.rb
new file mode 100644
index 00000000000..7784ed4eb4e
--- /dev/null
+++ b/app/services/metrics/users_starred_dashboards/create_service.rb
@@ -0,0 +1,74 @@
+# frozen_string_literal: true
+
+# Create Metrics::UsersStarredDashboard entry for given user based on matched dashboard_path, project
+module Metrics
+  module UsersStarredDashboards
+    class CreateService < ::BaseService
+      include Stepable
+
+      steps :authorize_create_action,
+            :parse_dashboard_path,
+            :create
+
+      def initialize(user, project, dashboard_path)
+        @user, @project, @dashboard_path = user, project, dashboard_path
+      end
+
+      def execute
+        keys = %i[status message starred_dashboard]
+        status, message, dashboards = execute_steps.values_at(*keys)
+
+        if status != :success
+          ServiceResponse.error(message: message)
+        else
+          ServiceResponse.success(payload: dashboards)
+        end
+      end
+
+      private
+
+      attr_reader :user, :project, :dashboard_path
+
+      def authorize_create_action(_options)
+        if Ability.allowed?(user, :create_metrics_user_starred_dashboard, project)
+          success(user: user, project: project)
+        else
+          error(s_('Metrics::UsersStarredDashboards|You are not authorized to add star to this dashboard'))
+        end
+      end
+
+      def parse_dashboard_path(options)
+        if dashboard_path_exists?
+          options[:dashboard_path] = dashboard_path
+          success(options)
+        else
+          error(s_('Metrics::UsersStarredDashboards|Dashboard with requested path can not be found'))
+        end
+      end
+
+      def create(options)
+        starred_dashboard = build_starred_dashboard_from(options)
+
+        if starred_dashboard.save
+          success(starred_dashboard: starred_dashboard)
+        else
+          error(starred_dashboard.errors.messages)
+        end
+      end
+
+      def build_starred_dashboard_from(options)
+        Metrics::UsersStarredDashboard.new(
+          user: options.fetch(:user),
+          project: options.fetch(:project),
+          dashboard_path: options.fetch(:dashboard_path)
+        )
+      end
+
+      def dashboard_path_exists?
+        Gitlab::Metrics::Dashboard::Finder
+          .find_all_paths(project)
+          .any? { |dashboard| dashboard[:path] == dashboard_path }
+      end
+    end
+  end
+end