Add api address external data fetch

app/lib/api_address/address_adapter.rb

@@ -0,0 +1,46 @@
+require 'json_schemer'
+
+class APIAddress::AddressAdapter
+  class InvalidSchemaError < ::StandardError
+    def initialize(errors)
+      super(errors.map(&:to_json).join("\n"))
+    end
+  end
+
+  def initialize(search_term)
+    @search_term = search_term
+  end
+
+  def to_params
+    result = Geocoder.search(@search_term, limit: 1).first
+    if result.present? && result.national_address == @search_term
+      feature = result.data['features'].first
+      if schemer.valid?(feature)
+        {
+          label: result.national_address,
+          type: result.result_type,
+          street_address: result.street_address,
+          street_number: result.street_number,
+          street_name: result.street_name,
+          postal_code: result.postal_code,
+          city_name: result.city_name,
+          city_code: result.city_code,
+          department_name: result.department_name,
+          department_code: result.department_code,
+          region_name: result.region_name,
+          region_code: result.region_code,
+          geometry: result.geometry
+        }
+      else
+        errors = schemer.validate(feature).to_a
+        raise InvalidSchemaError.new(errors)
+      end
+    end
+  end
+
+  private
+
+  def schemer
+    @schemer ||= JSONSchemer.schema(Rails.root.join('app/schemas/adresse-ban.json'))
+  end
+end