stocks-be/src/main/java/com/danielbohry/stocks/domain/Portfolio.java

package com.danielbohry.stocks.domain;

import lombok.Builder;
import lombok.Data;

import java.math.BigDecimal;
import java.util.List;

@Data
@Builder
public class Portfolio {

    private String id;
    private List<Stock> stocks;
    private BigDecimal totalValue;
    private Integer totalAssets;

    public BigDecimal getTotalValue() {
        return this.stocks.stream()
                .map(Stock::getTotal)
                .reduce(BigDecimal.ZERO, BigDecimal::add);
    }

    public Integer getTotalAssets() {
        return this.stocks.size();
    }

}