/**
* Metodo que monta o modelo do grafico de consumo por dia no periodo
*
* @param period o periodo
* @return o model para a view
*/
public LineChartModel bulidDailyChart(FinancialPeriod period) {
// lista receitas e despesas do periodo
final List<Movement> revenues = this.getRevenuesFor(period);
final List<Movement> expenses = this.getExpensesFor(period);
// agrupamos pelas datas das despesas e receitas
final List<LocalDate> payDates = this.groupPaymentDates(ListUtils.union(revenues, expenses));
// monta o grafico de linhas
final LineChartModel model = new LineChartModel();
// dados de despesas
final LineChartDatasetBuilder<BigDecimal> expensesBuilder =
new LineChartDatasetBuilder<>()
.filledByColor("rgba(255,153,153,0.2)")
.withStrokeColor("rgba(255,77,77,1)")
.withPointColor("rgba(204,0,0,1)")
.withPointStrokeColor("#fff")
.withPointHighlightFillColor("#fff")
.withPointHighlightStroke("rgba(204,0,0,1)");
// dados de receitas
final LineChartDatasetBuilder<BigDecimal> revenuesBuilder =
new LineChartDatasetBuilder<>()
.filledByColor("rgba(140,217,140,0.2)")
.withStrokeColor("rgba(51,153,51,1)")
.withPointColor("rgba(45,134,45,1)")
.withPointStrokeColor("#fff")
.withPointHighlightFillColor("#fff")
.withPointHighlightStroke("rgba(45,134,45,1)");
// para cada data de pagamento, printa o valor no dataset
payDates
.stream()
.forEach(
payDate -> {
model.addLabel(DateTimeFormatter.ofPattern("dd/MM").format(payDate));
final BigDecimal expensesTotal =
expenses
.stream()
.filter(movement -> movement.getPaymentDate().equals(payDate))
.map(Movement::getValue)
.reduce(BigDecimal.ZERO, BigDecimal::add);
final BigDecimal revenuesTotal =
revenues
.stream()
.filter(movement -> movement.getPaymentDate().equals(payDate))
.map(Movement::getValue)
.reduce(BigDecimal.ZERO, BigDecimal::add);
expensesBuilder.andData(expensesTotal);
revenuesBuilder.andData(revenuesTotal);
});
// joga os datasets no model
model.addDataset(revenuesBuilder.build());
model.addDataset(expensesBuilder.build());
return model;
}
