private void createOperations(Date startDate, int numberOfDays, Context context) {
for (int i = 0; i < numberOfDays; i++) {
Date date = DateUtils.addDays(startDate, i);
if (i % 7 == 0) {
income(date, context.accounts.get(0), context.salaryCategory, new BigDecimal("16000"));
}
if (i % 5 == 0) {
income(
date,
context.accounts.get(1),
context.otherIncomeCategory,
new BigDecimal(1000 + Math.round(Math.random() * 5000)));
}
for (int j = 0; j < Math.random() * 7; j++) {
expense(date, context.accounts.get(1), context);
if (j % 2 == 0) expense(date, context.accounts.get(0), context);
}
if (i % 2 == 0) {
Account account2 =
context.accounts.get((int) (1 + Math.random() * (context.accounts.size() - 1)));
transfer(date, context.accounts.get(0), account2);
}
}
}
private BigDecimal randomExpenseAmount(Account account, Date date, Double part) {
BigDecimal balance = balanceWorker.getBalance(account.getId(), date);
if (BigDecimal.ZERO.compareTo(balance) >= 0) return BigDecimal.ZERO;
else {
return new BigDecimal((int) (Math.random() * balance.doubleValue() * part));
}
}
private void expense(final Date date, final Account account, final Context context) {
persistence.runInTransaction(
em -> {
int categoryIdx =
(int) Math.round(Math.random() * (context.expenseCategories.size() - 1));
Category category = context.expenseCategories.get(categoryIdx);
if (category == null) return;
int categoryWeight = context.expenseCategories.size() - categoryIdx;
BigDecimal amount = randomExpenseAmount(account, date, 0.1 + (categoryWeight * 0.05));
if (BigDecimal.ZERO.compareTo(amount) >= 0) return;
Operation operation = metadata.create(Operation.class);
operation.setOpType(OperationType.EXPENSE);
operation.setOpDate(date);
operation.setAcc1(account);
operation.setCategory(category);
operation.setAmount1(amount);
em.persist(operation);
log.info("Expense: " + date + ", " + account.getName() + ", " + amount);
});
}