package producerrandom;

import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.Date;

@SuppressWarnings("WeakerAccess")
public class Price implements Serializable {

    private static final long serialVersionUID = 1L;

    public String symbol;
    public long timestamp; // expected to be System.currentTimeMillis()
    public Double value;

    @SuppressWarnings("unused")
    public Price() { // default constructor
    } //                so that the class can be used as a POJO

    public Price(String symbol, long timestamp, Double value) {

        this.symbol = symbol;
        this.timestamp = timestamp;
        this.value = value;
    }

    public String toString() {

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
        Date date = new Date(this.timestamp);

        String value_formatted = String.format("%.3f", this.value);

        // align positive and negative values using
        // an extra whitespace for positive values:
        if (!value_formatted.startsWith("-")) {

            value_formatted = " " + value_formatted;
        }

        return "Price{symbol='" + this.symbol
                + "', timestamp=" + simpleDateFormat.format(date)
                + ", value=" + value_formatted + "}";
    }

    public String toSimpleString() {

        return this.timestamp + "," + this.value;
    }
}