Add new stat

README.md

@@ -27,7 +27,11 @@
 {
   "park_count": 474,
   "alert_count": 708,
-  "most_alerts": {
+  "state_with_most_parks": {
+    "state": "WY",
+    "park_count": 10
+  },
+  "park_with_most_alerts": {
     "park_code": "zion",
     "alert_count": 6
   }

app/controllers/api/v1/stats_controller.rb

@@ -3,6 +3,7 @@ module Api::V1
     def index
       @park_count = Park.count
       @alert_count = Alert.count
+      @state_with_most_parks = ParksByState.group(:state).count.max
       @park_with_most_alerts = Alert.group(:park_code).count.max
     end
   end

app/views/api/v1/stats/index.json.jbuilder

@@ -1,6 +1,10 @@
 json.park_count @park_count
 json.alert_count @alert_count
-json.most_alerts do
+json.state_with_most_parks do
+  json.state @state_with_most_parks[0]
+  json.park_count @state_with_most_parks[1]
+end
+json.park_with_most_alerts do
   json.park_code @park_with_most_alerts[0]
   json.alert_count @park_with_most_alerts[1]
 end

spec/requests/api/v1/stats_spec.rb

@@ -4,6 +4,7 @@ RSpec.describe "Api::V1::Stats", type: :request do
   describe "GET /stats" do
     it "returns summary stats" do
       alerts(:two).update!(park_code: parks(:one).code)
+      parks_by_states(:two).update!(state: "OR")
 
       get api_v1_stats_url
 
@@ -11,7 +12,11 @@ RSpec.describe "Api::V1::Stats", type: :request do
       expect(response.parsed_body).to match(
         park_count: 2,
         alert_count: 2,
-        most_alerts: {
+        state_with_most_parks: {
+          state: "OR",
+          park_count: 2
+        },
+        park_with_most_alerts: {
           park_code: "crla",
           alert_count: 2
         }