Payment Vs Tax

app/controllers/origami/redeem_payments_controller.rb

@@ -4,7 +4,25 @@ class Origami::RedeemPaymentsController < BaseOrigamiController
  		payment_method = params[:payment_method]
  		@membership_rebate_balance=0
  		sale_data = Sale.find_by_sale_id(@sale_id)
-    @food_prices, @beverage_prices = SaleItem.calculate_food_beverage(sale_data.sale_items)
+
+    # limit redeem_amount
+    food_prices, beverage_prices = SaleItem.calculate_food_beverage(sale_data.sale_items)
+    @payparcount = 0
+    others = 0
+    sale_data.sale_payments.each do |sale_payment|
+        if sale_payment.payment_method == "paypar"
+          @payparcount = @payparcount + sale_payment.payment_amount
+        else
+          others = others + sale_payment.payment_amount
+        end
+    end
+    is_bervage_exceed = others - (beverage_prices +  sale_data.total_tax)
+    if is_bervage_exceed < 0
+      @food_prices = food_prices - @payparcount
+    else
+      @food_prices = food_prices - @payparcount -is_bervage_exceed
+    end
+
  		if sale_data
  			if sale_data.customer_id
  				customer_data= Customer.find_by_customer_id(sale_data.customer_id)

app/views/origami/payments/show.html.erb

@@ -253,6 +253,6 @@ function update_balance(){
   var amount_due = $('#amount_due').text();
   var total = parseFloat(cash) + parseFloat(credit) + parseFloat(card)
   var result = amount_due - total
-  $('#balance').text(result);
+  $('#balance').text(result.toFixed(2));
 }
 </script>

app/views/origami/redeem_payments/index.html.erb

@@ -18,8 +18,11 @@
 			    		<hr>
 			    	</div>
 		    	</div>
-					<p class="">You can rebate upto <span style="color:red;" id="food_prices"><%= @food_prices %></span></p>
 			</div>
+			<% if @payparcount > 0 %>
+				<p class="">Last time rebate amount is <%= @payparcount %></p>
+			<% end %>
+			<p class="">You can rebate upto <span style="color:red;" id="food_prices"><%= @food_prices %></span></p>
 	</div>
 
     <div class="col-lg-7 col-md-7 col-sm-7">
@@ -117,7 +120,7 @@ $("#redeem").click(function(){
 	valid_amount = $("#valid_amount").val();
 	sale_id = $("#valid_amount").attr('data-value');
 	membership_id = $("#valid_amount").attr('data-member-value');
-	redeem_amount = parseInt($("#used_amount").text());
+	redeem_amount = parseFloat($("#used_amount").text());
 	if(redeem_amount<=0 ){
 		alert("Please type valid amount");