Add task for easily creating test invoices

lib/tasks/lndhub.rake

@@ -1,3 +1,6 @@
+require "digest"
+require "pp"
+
 namespace :lndhub do
   desc "Generate wallets for all users"
   task :generate_wallets => :environment do |t, args|
@@ -22,6 +25,21 @@ namespace :lndhub do
     puts "--\nSum of user balances: #{sum} sats"
   end
 
+  desc "Create test invoice"
+  task :create_test_invoice, [:username, :amount, :description] => :environment do |t, args|
+    user = User.find_by cn: args[:username]
+    desc = args[:description]
+    hash = Digest::SHA256.hexdigest(desc)
+
+    invoice = LndhubManager::CreateUserInvoice.call(user: user, payload: {
+      "amount": args[:amount].to_i,
+      "description": desc,
+      "description_hash": hash
+    })
+
+    pp invoice
+  end
+
   desc "Migrate existing accounts to lndhub.go"
   task :migrate => :environment do |t, args|
     # user = User.find_by cn: "jimmy"