BOGOF discount for ZERO2W

2026-07-15 10:57:09 -04:00
parent dadfeed768
commit d21373035e
3 changed files with 70 additions and 3 deletions
@@ -21,9 +21,7 @@ class Checkout
  end

  def total
-    @items.reduce(0.00) do |running_total, item|
-      running_total + AVAILABLE_ITEMS[item]
-    end
+    pre_discount_total - current_discount
  end

  private
@@ -31,4 +29,20 @@ class Checkout
  def valid_item?(item)
    return AVAILABLE_ITEMS.keys.include?(item)
  end
+
+  def current_discount
+    # BOGOF ZERO2W
+    discount = (@items.count(:ZERO2W) / 2.0).floor * AVAILABLE_ITEMS[:ZERO2W]
+
+
+    # TODO: Bulk PICO2
+
+    return discount
+  end
+
+  def pre_discount_total
+    @items.reduce(0.00) do |running_total, item|
+      running_total + AVAILABLE_ITEMS[item]
+    end
+  end
 end