package com.sample

dialect "mvel"

import com.sample.SodaWater.Customer


rule "buy a soda water and drink"
    when
        $c : Customer(money > 0, $m:money, $b:blankCup, $d:drinkSum)
    then
        $c.money = $m - 1;
        $c.blankCup = $b + 1;
        $c.drinkSum = $d + 1;
        System.out.println( "Customer " + $c.name + " now buy a soda water and drink: money=" + $c.money + " and blankCup=" + $c.blankCup);
        update($c);
end

rule "sale blank cup and get money"
    when
        $c : Customer(blankCup > 1, $b:blankCup, $m:money )
    then
        $c.blankCup = $b - 2;
        $c.money = $m + 1;
        System.out.println("Customer " + $c.name + " now sale 2 cups and get money: money=" + $c.money + ", blankCup=" + $c.blankCup);
        update($c);
end

rule "finish drink"
    no-loop true
    dialect "java"
    when
        $c : Customer(blankCup < 2, money == 0)
    then
        System.out.println( "Customer " + $c.getName() + " finished drink, and drink number is " + $c.getDrinkSum() + " blankCup=" + $c.getBlankCup());
end