1 files changed, 52 insertions, 0 deletions
diff --git a/app/finders/packages/debian/distributions_finder.rb b/app/finders/packages/debian/distributions_finder.rb
new file mode 100644
index 00000000000..e64b6bdfec1
--- /dev/null
+++ b/app/finders/packages/debian/distributions_finder.rb
@@ -0,0 +1,52 @@
+# frozen_string_literal: true
+
+module Packages
+  module Debian
+    class DistributionsFinder
+      def initialize(container, params = {})
+        @container, @params = container, params
+      end
+
+      def execute
+        collection = relation.with_container(container)
+        collection = by_codename(collection)
+        collection = by_suite(collection)
+        collection = by_codename_or_suite(collection)
+        collection
+      end
+
+      private
+
+      attr_reader :container, :params
+
+      def relation
+        case container
+        when Project
+          Packages::Debian::ProjectDistribution
+        when Group
+          Packages::Debian::GroupDistribution
+        else
+          raise ArgumentError, "Unexpected container type of '#{container.class}'"
+        end
+      end
+
+      def by_codename(collection)
+        return collection unless params[:codename].present?
+
+        collection.with_codename(params[:codename])
+      end
+
+      def by_suite(collection)
+        return collection unless params[:suite].present?
+
+        collection.with_suite(params[:suite])
+      end
+
+      def by_codename_or_suite(collection)
+        return collection unless params[:codename_or_suite].present?
+
+        collection.with_codename_or_suite(params[:codename_or_suite])
+      end
+    end
+  end
+end