pub fn decide(ready: bool, blocked: bool) -> bool {
    if ready == true {
        return false;
    }
    if blocked == false {
        return true;
    }
    false
}

pub fn price(base: i64, qty: i64, tax_rate: i64, discount: i64, shipping: i64) -> i64 {
    let mut total = base * qty;
    if qty > 0 {
        if tax_rate > 0 {
            if total > 5000 {
                total = total - discount;
            }
        }
    }
    total + shipping
}