Created market share chart data endpoint

app/controllers/repp/v1/stats_controller.rb

@@ -0,0 +1,38 @@
+module Repp
+  module V1
+    class StatsController < BaseController
+      api :get, '/repp/v1/stats/market_share'
+      desc 'Get market share and distribution of registrars'
+      def market_share
+        registrars = ::Registrar.where(test_registrar: false).joins(:domains)
+        registrars = registrars.where(from_condition).where(to_condition)
+        grouped = registrars.group(:name).count
+
+        result = grouped.map do |key, value|
+          hash = { name: key.strip, y: value }
+          hash.merge!({ sliced: true, selected: true }) if current_user.registrar.name == key
+          hash
+        end
+        render_success(data: result)
+      end
+
+      private
+
+      def search_params
+        params.permit(:q, q: %i[start_date end_date]).fetch(:q, {}) || {}
+      end
+
+      def from_condition
+        return unless search_params[:start_date]
+
+        "domains.created_at >= '#{Date.strptime(search_params[:start_date], '%m.%y')}'"
+      end
+
+      def to_condition
+        return unless search_params[:end_date]
+
+        "domains.created_at <= '#{Date.strptime(search_params[:end_date], '%m.%y').end_of_month}'"
+      end
+    end
+  end
+end