学生机代金卷

def validate_coupon(coupon_code, order_total):
    # 假设从数据库中获取代金券信息
    coupon_info = get_coupon_info_from_db(coupon_code)
    
    if not coupon_info:
        return False, "Invalid coupon code"
    
    if coupon_info['expiry_date'] < datetime.now():
        return False, "Coupon has expired"
    
    if order_total < coupon_info['min_purchase']:
        return False, "Order total does not meet the minimum requirement"
    
    return True, coupon_info['discount_amount']

def apply_coupon_to_order(order_id, coupon_code):
    order = get_order_details(order_id)
    is_valid, message_or_discount = validate_coupon(coupon_code, order['total'])
    
    if is_valid:
        new_total = order['total'] - message_or_discount
        update_order_total(order_id, new_total)
        return True, "Coupon applied successfully"
    else:
        return False, message_or_discount

# 示例调用
order_id = 12345
coupon_code = "STUDENT2023"
success, result = apply_coupon_to_order(order_id, coupon_code)
print(success, result)