Add funding filter to package scope and implement critical funding do…

…mains method

app/controllers/api/v1/packages_controller.rb

@@ -33,6 +33,8 @@ def critical
     scope = scope.created_before(params[:created_before]) if params[:created_before].present?
     scope = scope.updated_before(params[:updated_before]) if params[:updated_before].present?
 
+    scope = scope.with_funding if params[:funding].present?
+
     if params[:sort].present? || params[:order].present?
       sort = params[:sort] || 'updated_at'
       sort = "(repo_metadata ->> 'stargazers_count')::text::integer" if params[:sort] == 'stargazers_count'

app/models/package.rb

@@ -890,6 +890,15 @@ def self.funding_domains
     end
   end
 
+  def self.critical_funding_domains
+    funding_domains = []
+    Package.critical.with_funding.active.find_each do |package| 
+      funding_domains << package.funding_domains
+    end
+
+    funding_domains.flatten.group_by(&:itself).map{|k, v| [k, v.count]}.to_h.sort_by{|k, v| v}.reverse.to_h
+  end
+
   def clean_up_duplicate_maintainerships
     maintainer_ids = maintainerships.group(:maintainer_id).count.select{|k,v| v > 1}.keys
     return if maintainer_ids.blank?