package dev.rinaldo.datahora;

import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.Month;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.temporal.ChronoUnit;

/**
 * @author RinaldoDev
 */
// JAVA 8 - API de Data e Hora
public class DataHoraJava8 {

  public static void main(String[] args) {

    // LocalDate - representa uma data: 06/08/1990
    LocalDate ldNow = LocalDate.now();
    System.out.println(ldNow);

    LocalDate ld = LocalDate.of(1990, Month.AUGUST, 6);
    System.out.println(ld);
    LocalDate ld2 = ld.plusWeeks(2).plusDays(1).minusMonths(1);
    System.out.println(ld2);

    // LocalTime - representa uma hora: 11:40:00
    LocalTime ltNow = LocalTime.now();
    System.out.println(ltNow);
    LocalTime lt = LocalTime.of(11, 10, 01, 100000);
    System.out.println(lt);

    // LocalDateTime - representa data+hora:
    // 06/08/1990 11:40:00
    LocalDateTime ldtNow = LocalDateTime.now();
    System.out.println(ldtNow);
    LocalDateTime ldt = LocalDateTime.of(ld, lt);
    System.out.println(ldt);

    // Instant - representa um instante/momento na
    // linha do tempo (milissegundos a partir de
    // 01/01/1970 00:00:00
    // 06/08/1990 11:40:00 GMT/UTC
    Instant iNow = Instant.now();
    System.out.println(iNow);
    Instant i = Instant.ofEpochMilli(500000000000L);
    System.out.println(i);
    Instant plus = i.plus(1, ChronoUnit.MONTHS);
    System.out.println(plus);

    // ZonedDateTime - LocalDateTime com
    // TimeZone (fuso horário)
    // 06/08/1990 11:40:00 GMT-3 (America/Sao_Paulo)
    ZonedDateTime zdtNow = ZonedDateTime.now();
    System.out.println(zdtNow);
    ZoneId zoneId = ZoneId.of("America/Montevideo");
    ZonedDateTime zdt = ZonedDateTime.of(ld, lt, zoneId);
    System.out.println(zdt);

  }

}

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