public static ClientSnapshot create(Client client, Date time) {
ClientSnapshot snapshot = new ClientSnapshot(client, time);
for (Account account : client.getAccounts())
snapshot.accounts.add(AccountSnapshot.create(account, time));
for (Portfolio portfolio : client.getPortfolios())
snapshot.portfolios.add(PortfolioSnapshot.create(portfolio, time));
if (snapshot.portfolios.isEmpty())
snapshot.jointPortfolio = PortfolioSnapshot.create(new Portfolio(), time);
else if (snapshot.portfolios.size() == 1) snapshot.jointPortfolio = snapshot.portfolios.get(0);
else snapshot.jointPortfolio = PortfolioSnapshot.merge(snapshot.portfolios);
return snapshot;
}
