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// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
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package org.apache.juneau.transform;

import java.time.*;
import java.time.temporal.*;
import java.util.*;
import java.util.concurrent.*;

import javax.xml.datatype.*;

import org.apache.juneau.reflect.*;
import org.apache.juneau.transforms.*;

/**
 * Maintain the list of default PojoSwaps used by all serializers and parsers.
 */
public class DefaultSwaps {

	private static final Map<Class<?>,PojoSwap<?,?>> POJO_SWAPS = new ConcurrentHashMap<>();
	static {
		POJO_SWAPS.put(Enumeration.class, new EnumerationSwap());
		POJO_SWAPS.put(Iterator.class, new IteratorSwap());
		POJO_SWAPS.put(Locale.class, new LocaleSwap());
		POJO_SWAPS.put(Calendar.class, new TemporalCalendarSwap.IsoOffsetDateTime());
		POJO_SWAPS.put(Date.class, new TemporalDateSwap.IsoLocalDateTime());
		POJO_SWAPS.put(Instant.class, new TemporalSwap.IsoInstant());
		POJO_SWAPS.put(ZonedDateTime.class, new TemporalSwap.IsoOffsetDateTime());
		POJO_SWAPS.put(LocalDate.class, new TemporalSwap.IsoLocalDate());
		POJO_SWAPS.put(LocalDateTime.class, new TemporalSwap.IsoLocalDateTime());
		POJO_SWAPS.put(LocalTime.class, new TemporalSwap.IsoLocalTime());
		POJO_SWAPS.put(OffsetDateTime.class, new TemporalSwap.IsoOffsetDateTime());
		POJO_SWAPS.put(OffsetTime.class, new TemporalSwap.IsoOffsetTime());
		POJO_SWAPS.put(LocalDateTime.class, new TemporalSwap.IsoLocalDateTime());
		POJO_SWAPS.put(LocalTime.class, new TemporalSwap.IsoLocalTime());
		POJO_SWAPS.put(Year.class, new TemporalSwap.IsoYear());
		POJO_SWAPS.put(YearMonth.class, new TemporalSwap.IsoYearMonth());
		POJO_SWAPS.put(Temporal.class, new TemporalSwap.IsoInstant());
		POJO_SWAPS.put(TimeZone.class, new TimeZoneSwap());
		POJO_SWAPS.put(XMLGregorianCalendar.class, new XMLGregorianCalendarSwap());
	}

	/**
	 * Find the default PojoSwap for the specified class.
	 *
	 * @param ci The class to find the swap for.
	 * @return The matched swap, or <jk>null</jk> if it couldn't be found.
	 */
	public static PojoSwap<?,?> find(ClassInfo ci) {
		for (ClassInfo ci2 : ci.getAllParents()) {
			PojoSwap<?,?> ps = POJO_SWAPS.get(ci2.inner());
			if (ps != null)
				return ps;
		}
		return null;
	}
}