accept and use custom settle value

app/controllers/homies_controller.rb

@@ -28,9 +28,10 @@ class HomiesController < ApplicationController
 
   def settle
     homie_id = params[:homie_id].to_i
+    amount = params[:amount].present? ? params[:amount].to_d : nil
     homie = Homie.find(homie_id)
 
-    if homie.settle
+    if homie.settle(amount)
       json_response []
     else
       error_response :bad_request

app/models/homie.rb

@@ -12,8 +12,8 @@ class Homie < ApplicationRecord
     end
   end
 
-  def settle
-    total = MoneyMove.where(homie_id: id).all.sum(:amount)
+  def settle(amount)
+    total = amount.nil? ? MoneyMove.where(homie_id: id).all.sum(:amount) : amount
     all_money_moves = MoneyMove.where(homie_id: id).all
 
     transaction do
@@ -22,7 +22,7 @@ class Homie < ApplicationRecord
       MoneyMove.create_settle_record(id, total)
     end
     true
-  rescue StandardError => e
+  rescue StandardError
     false
   end
 end