Add naive impl of seeding alerts

README.md

@@ -31,6 +31,7 @@ bin/rspec
 - What additional cols to add to parks model?
 - Order results on index actions
 - Return total pages for index actions
+- Enum on category for alerts
 - index states for efficient search?
   - full text search in sqlite?
   - normalize state on a separate table?

app/lib/nps_client.rb

@@ -7,6 +7,10 @@ class NpsClient
     conn.get('parks', { start: offset })
   end
 
+  def alerts(park_code:, offset: 0)
+    conn.get('alerts', { parkCode: park_code, start: offset })
+  end
+
   private
 
   def conn

app/services/seed/alerts.rb

@@ -0,0 +1,23 @@
+class Seed::Alerts
+  def self.call(...)
+    new(...).call
+  end
+
+  def call
+    Park.find_each do |park|
+      offset, total = 0, 1
+      while offset < total do
+        response_body = NpsClient.current.alerts(park_code: park.code, offset: offset).body
+        offset = response_body['start'].to_i + response_body['limit'].to_i
+        total = response_body['total'].to_i
+        alerts = response_body['data']
+          .pluck('id', 'category', 'description', 'lastIndexedDate', 'parkCode', 'title', 'url')
+          .map do |identifier, category, description, indexed_date, park_code, title, url|
+            { identifier:, category:, description:, indexed_date:, park_code:, title:, url: }
+          end
+        Alert.upsert_all(alerts, unique_by: :identifier)
+        Rails.logger.info("Upserted #{alerts.count} alerts for #{park.name}")
+      end
+    end
+  end
+end

db/migrate/20251008063847_create_alerts.rb

@@ -3,6 +3,7 @@ class CreateAlerts < ActiveRecord::Migration[8.0]
     create_table :alerts do |t|
       t.string :category, null: false
       t.text :description
+      t.string :identifier, null: false
       t.string :park_code, null: false
       t.string :title, null: false
       t.string :url
@@ -11,6 +12,7 @@ class CreateAlerts < ActiveRecord::Migration[8.0]
       t.timestamps
     end
 
+    add_index :alerts, :identifier, unique: true
     add_index :alerts, :park_code
     add_foreign_key :alerts, :parks, column: :park_code, primary_key: :code
   end

db/schema.rb

@@ -14,12 +14,14 @@ ActiveRecord::Schema[8.0].define(version: 2025_10_08_063847) do
   create_table "alerts", force: :cascade do |t|
     t.string "category", null: false
     t.text "description"
+    t.string "identifier", null: false
     t.string "park_code", null: false
     t.string "title", null: false
     t.string "url"
     t.datetime "indexed_date"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.index ["identifier"], name: "index_alerts_on_identifier", unique: true
     t.index ["park_code"], name: "index_alerts_on_park_code"
   end