Add a JSON version of the `CycleAnalytics` page.

app/controllers/projects/cycle_analytics_controller.rb

@@ -3,6 +3,11 @@ class Projects::CycleAnalyticsController < Projects::ApplicationController
 
   def show
     @cycle_analytics = CycleAnalytics.new(@project, from: parse_start_date)
+
+    respond_to do |format|
+      format.html
+      format.json { render json: @cycle_analytics }
+    end
   end
 
   private

app/models/cycle_analytics.rb

@@ -6,6 +6,13 @@ class CycleAnalytics
     @from = from
   end
 
+  def as_json(options = {})
+    {
+      issue: issue, plan: plan, code: code, test: test,
+      review: review, staging: staging, production: production
+    }
+  end
+
   def issue
     calculate_metric(Queries::issues(@project, created_after: @from),
                      -> (data_point) { data_point[:issue].created_at },

app/policies/project_policy.rb

@@ -101,6 +101,7 @@ class ProjectPolicy < BasePolicy
     can! :admin_pipeline
     can! :admin_environment
     can! :admin_deployment
+    can! :read_cycle_analytics
   end
 
   def public_access!