Add LndHub db/models, and quick stats for admin views

app/controllers/admin/donations_controller.rb

@@ -5,7 +5,11 @@ class Admin::DonationsController < Admin::BaseController
   # GET /donations
   # GET /donations.json
   def index
-    @donations = Donation.all
+    @donations = Donation.all.order('created_at desc')
+    @stats = {
+      overall_sats: @donations.all.sum("amount_sats"),
+      donor_count: Donation.distinct.count(:user_id)
+    }
   end
 
   # GET /donations/1

app/controllers/admin/invitations_controller.rb

@@ -1,8 +1,11 @@
 class Admin::InvitationsController < Admin::BaseController
   def index
     @current_section = :invitations
-    @invitations_unused_count = Invitation.unused.count
-    @users_with_referrals_count = Invitation.used.distinct.count(:user_id)
     @invitations_used = Invitation.used.order('used_at desc')
+    @stats = {
+      available: Invitation.unused.count,
+      accepted: @invitations_used.length,
+      users_with_referrals: Invitation.used.distinct.count(:user_id)
+    }
   end
 end

app/controllers/admin/lightning_controller.rb

@@ -0,0 +1,12 @@
+class Admin::LightningController < Admin::BaseController
+  def index
+    @current_section = :lightning
+
+    @users = User.pluck(:cn, :ou, :ln_account)
+    @accounts = LndhubAccount.with_balances.order(balance: :desc).to_a
+
+    @ln = {}
+    @ln[:current_balance] = LndhubAccount.current.joins(:ledgers).sum("account_ledgers.amount")
+    @ln[:users_with_sats] = @accounts.length
+  end
+end