Use ParksByState to query alerts more efficiently

app/lib/nps_client.rb

@@ -7,8 +7,8 @@ class NpsClient
     conn.get('parks', { start: offset })
   end
 
-  def alerts(park_code:, offset: 0)
-    conn.get('alerts', { parkCode: park_code, start: offset })
+  def alerts(state:, offset: 0)
+    conn.get('alerts', { stateCode: state, start: offset })
   end
 
   private

app/services/seed/alerts.rb

@@ -4,10 +4,12 @@ class Seed::Alerts
   end
 
   def call
-    Park.find_each do |park|
+    ParksByState.distinct.pluck(:state).each do |state|
+      relevant_park_codes = ParksByState.where(state: state).pluck(:park_code)
+
       offset, total = 0, 1
       while offset < total do
-        response_body = NpsClient.current.alerts(park_code: park.code, offset: offset).body
+        response_body = NpsClient.current.alerts(state: state, offset: offset).body
         offset = response_body['start'].to_i + response_body['limit'].to_i
         total = response_body['total'].to_i
         alerts = response_body['data']
@@ -15,8 +17,9 @@ class Seed::Alerts
           .map do |identifier, category, description, indexed_date, park_code, title, url|
             { identifier:, category:, description:, indexed_date:, park_code:, title:, url: }
           end
+          .select { relevant_park_codes.include?(it[:park_code]) }
         Alert.upsert_all(alerts, unique_by: :identifier)
-        Rails.logger.info("Upserted #{alerts.count} alerts for #{park.name}")
+        Rails.logger.info("Upserted #{alerts.count} alerts for #{state}")
       end
     end
   end