package rewards;
import common.datetime.SimpleDate;
import common.money.MonetaryAmount;
/**
* A dining event that occurred, representing a charge made to an credit card by a merchant on a specific date.
*
* For a dining to be eligible for reward, the credit card number should map to an account in the reward network. In
* addition, the merchant number should map to a restaurant in the network.
*
* A value object. Immutable.
*/
public class Dining {
private MonetaryAmount amount;
private String creditCardNumber;
private String merchantNumber;
private SimpleDate date;
/**
* Creates a new dining, reflecting an amount that was charged to a card by a merchant on the date specified.
* @param amount the total amount of the dining bill
* @param creditCardNumber the number of the credit card used to pay for the dining bill
* @param merchantNumber the merchant number of the restaurant where the dining occurred
* @param date the date of the dining event
*/
public Dining(MonetaryAmount amount, String creditCardNumber, String merchantNumber, SimpleDate date) {
this.amount = amount;
this.creditCardNumber = creditCardNumber;
this.merchantNumber = merchantNumber;
this.date = date;
}
/**
* Creates a new dining, reflecting an amount that was charged to a credit card by a merchant on today's date. A
* convenient static factory method.
* @param amount the total amount of the dining bill as a string
* @param creditCardNumber the number of the credit card used to pay for the dining bill
* @param merchantNumber the merchant number of the restaurant where the dining occurred
* @return the dining event
*/
public static Dining createDining(String amount, String creditCardNumber, String merchantNumber) {
return new Dining(MonetaryAmount.valueOf(amount), creditCardNumber, merchantNumber, SimpleDate.today());
}
/**
* Creates a new dining, reflecting an amount that was charged to a credit card by a merchant on the date specified.
* A convenient static factory method.
* @param amount the total amount of the dining bill as a string
* @param creditCardNumber the number of the credit card used to pay for the dining bill
* @param merchantNumber the merchant number of the restaurant where the dining occurred
* @param month the month of the dining event
* @param day the day of the dining event
* @param year the year of the dining event
* @return the dining event
*/
public static Dining createDining(String amount, String creditCardNumber, String merchantNumber, int month,
int day, int year) {
return new Dining(MonetaryAmount.valueOf(amount), creditCardNumber, merchantNumber, new SimpleDate(month, day,
year));
}
/**
* Returns the amount of this dining--the total amount of the bill that was charged to the credit card.
*/
public MonetaryAmount getAmount() {
return amount;
}
/**
* Returns the number of the credit card used to pay for this dining. For this dining to be eligible for reward,
* this credit card number should be associated with a valid account in the reward network.
*/
public String getCreditCardNumber() {
return creditCardNumber;
}
/**
* Returns the merchant number of the restaurant where this dining occurred. For this dining to be eligible for
* reward, this merchant number should be associated with a valid restaurant in the reward network.
*/
public String getMerchantNumber() {
return merchantNumber;
}
/**
* Returns the date this dining occurred on.
*/
public SimpleDate getDate() {
return date;
}
public boolean equals(Object o) {
if (!(o instanceof Dining)) {
return false;
}
Dining other = (Dining) o;
// value objects are equal if their attributes are equal
return amount.equals(other.amount) && creditCardNumber.equals(other.creditCardNumber)
&& merchantNumber.equals(other.merchantNumber) && date.equals(other.date);
}
public int hashCode() {
return amount.hashCode() + creditCardNumber.hashCode() + merchantNumber.hashCode() + date.hashCode();
}
public String toString() {
return "Dining of " + amount + " charged to '" + creditCardNumber + "' by '" + merchantNumber + "' on " + date;
}
}