Add simple stats endpoint

app/controllers/api/v1/stats_controller.rb

@@ -0,0 +1,24 @@
+class Api::V1::StatsController < ApplicationController
+  before_action :ensure_authenticated!, unless: -> { Rails.env.development? }
+
+  def show
+    # take either user_id with a start date & end date
+    start_date = Date.parse(params[:start_date]) if params[:start_date].present?
+    start_date ||= 10.years.ago
+    end_date = Date.parse(params[:end_date]) if params[:end_date].present?
+    end_date ||= Date.today
+
+    query = Heartbeat
+    query = query.where(time: start_date..end_date)
+    query = query.where(user_id: params[:user_id]) if params[:user_id].present?
+
+    render plain: query.duration_seconds
+  end
+
+  private
+
+  def ensure_authenticated!
+    bearer_token = request.headers["Authorization"].split(" ").last
+    return render json: { error: "Unauthorized" }, status: :unauthorized unless bearer_token == ENV["STATS_API_KEY"]
+  end
+end

config/routes.rb

@@ -48,6 +48,12 @@ Rails.application.routes.draw do
   get "my/settings", to: "users#edit", as: :my_settings
   patch "my/settings", to: "users#update"
 
+  namespace :api do
+    namespace :v1 do
+      get "stats", to: "stats#show"
+    end
+  end
+
 
   post "/sailors_log/slack/commands", to: "slack#create"
   post "/timedump/slack/commands", to: "slack#create"