GWP tag equal to zero plus staff member plus excluding discount codes.arb

STAFF_TAG = "PICKUP STAFF"
STAFF_MESSAGE = "Staff discount"
REJECT_MESSAGE = "Discount codes cannot be redeemed with Staff Discount"

DISCOUNT_APPLIED_FOR = ["Adult","Baby","Books","Bundle","Fragrances","Haircare","Health & Wellness","Home","Makeup","Mattress","Nails","Party","Personal Care","Pod Starter Kit","Skincare","Sports Nutrition","Stationery"]
DISCOUNT_AMOUNT = 0.75 #means 25%
Dicount_applied = false

DISCOUNT_APPLIED_FOR_1 = ["Alcohol","Electronics","Grocery","Toys"]
DISCOUNT_AMOUNT_1 = 0.85 #means 15%
Dicount_applied_1 = false

GWP_TAG = "GWP"
GWP_MESSAGE = "free gift added"

customer = Input.cart.customer
if customer && customer.tags.include?(STAFF_TAG)
  Input.cart.line_items.each do |line_item|
    product = line_item.variant.product
    
    unless  product.tags.include?("rrp sale"||"Sale_Clearance")
      
      DISCOUNT_APPLIED_FOR.each do |target|
        Dicount_applied = product.product_type.include?(target)
        if Dicount_applied == true
          break
        end
      end
  
      DISCOUNT_APPLIED_FOR_1.each do |target|
        Dicount_applied_1 = product.product_type.include?(target)
        if Dicount_applied_1 == true
          break
        end
      end
     
     if Dicount_applied
        next if product.gift_card?
        line_item.change_line_price(line_item.line_price * DISCOUNT_AMOUNT, message: STAFF_MESSAGE)
      end
  
      if Dicount_applied_1
        next if product.gift_card?
        line_item.change_line_price(line_item.line_price * DISCOUNT_AMOUNT_1, message: STAFF_MESSAGE)
      end
    
    end
    
    next if product.gift_card?
      if Input.cart.discount_code
        Input.cart.discount_code.reject(message: REJECT_MESSAGE)
      end
    
  end
end

Input.cart.line_items.each do |line_item|
    product = line_item.variant.product
    if product.tags.include?(GWP_TAG)
      next if product.gift_card?
        line_item.change_line_price(line_item.line_price * 0, message: GWP_MESSAGE)
    end
end

Output.cart = Input.cart