Merge pull request 'Add admin task to list LndHub balances' (#68) from feature/list_lndhub_balances into master

Reviewed-on: #68

lib/tasks/lndhub.rake

@@ -5,4 +5,20 @@ namespace :lndhub do
       CreateLndhubWalletJob.perform_later(user)
     end
   end
+
+  desc "List wallet balances"
+  task :balances => :environment do |t, args|
+    sum = 0
+    User.all.each do |user|
+      lndhub = Lndhub.new
+      auth_token = lndhub.authenticate(user)
+      data = lndhub.balance(auth_token)
+      balance = data["BTC"]["AvailableBalance"] rescue nil
+      if balance && balance > 0
+        sum += balance
+        puts "#{user.address}: #{balance} sats"
+      end
+    end
+    puts "--\nSum of user balances: #{sum} sats"
+  end
 end