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package org.springframework.data.r2dbc.convert;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;

import org.springframework.data.convert.CustomConversions;
import org.springframework.data.convert.JodaTimeConverters;
import org.springframework.data.r2dbc.dialect.R2dbcDialect;
import org.springframework.data.r2dbc.mapping.R2dbcSimpleTypeHolder;

/**
 * Value object to capture custom conversion. {@link R2dbcCustomConversions} also act as factory for
 * {@link org.springframework.data.mapping.model.SimpleTypeHolder}
 *
 * @author Mark Paluch
 * @see CustomConversions
 * @see org.springframework.data.mapping.model.SimpleTypeHolder
 */
public class R2dbcCustomConversions extends CustomConversions {

	public static final List STORE_CONVERTERS;

	public static final StoreConversions STORE_CONVERSIONS;

	static {

		List converters = new ArrayList<>();

		converters.addAll(R2dbcConverters.getConvertersToRegister());
		converters.addAll(JodaTimeConverters.getConvertersToRegister());

		STORE_CONVERTERS = Collections.unmodifiableList(converters);
		STORE_CONVERSIONS = StoreConversions.of(R2dbcSimpleTypeHolder.HOLDER, STORE_CONVERTERS);
	}

	/**
	 * Create a new {@link R2dbcCustomConversions} instance registering the given converters.
	 *
	 * @param converters must not be {@literal null}.
	 * @deprecated since 1.3, use {@link #of(R2dbcDialect, Object...)} or
	 *             {@link #R2dbcCustomConversions(StoreConversions, Collection)} directly to consider dialect-native
	 *             simple types. Use {@link CustomConversions.StoreConversions#NONE} to omit store-specific converters.
	 */
	@Deprecated
	public R2dbcCustomConversions(Collection converters) {
		super(new R2dbcCustomConversionsConfiguration(STORE_CONVERSIONS, appendOverrides(converters)));
	}

	/**
	 * Create a new {@link R2dbcCustomConversions} instance registering the given converters.
	 *
	 * @param storeConversions must not be {@literal null}.
	 * @param converters must not be {@literal null}.
	 */
	public R2dbcCustomConversions(StoreConversions storeConversions, Collection converters) {
		super(new R2dbcCustomConversionsConfiguration(storeConversions, appendOverrides(converters)));
	}

	/**
	 * Create a new {@link R2dbcCustomConversions} from the given {@link R2dbcDialect} and {@code converters}.
	 *
	 * @param dialect must not be {@literal null}.
	 * @param converters must not be {@literal null}.
	 * @return the custom conversions object.
	 * @since 1.2
	 */
	public static R2dbcCustomConversions of(R2dbcDialect dialect, Object... converters) {
		return of(dialect, Arrays.asList(converters));
	}

	/**
	 * Create a new {@link R2dbcCustomConversions} from the given {@link R2dbcDialect} and {@code converters}.
	 *
	 * @param dialect must not be {@literal null}.
	 * @param converters must not be {@literal null}.
	 * @return the custom conversions object.
	 * @since 1.2
	 */
	public static R2dbcCustomConversions of(R2dbcDialect dialect, Collection converters) {

		List storeConverters = new ArrayList<>(dialect.getConverters());
		storeConverters.addAll(R2dbcCustomConversions.STORE_CONVERTERS);

		return new R2dbcCustomConversions(StoreConversions.of(dialect.getSimpleTypeHolder(), storeConverters), converters);
	}

	private static List appendOverrides(Collection converters) {

		List objects = new ArrayList<>(converters);
		objects.addAll(R2dbcConverters.getOverrideConvertersToRegister());

		return objects;
	}

	static class R2dbcCustomConversionsConfiguration extends ConverterConfiguration {

		public R2dbcCustomConversionsConfiguration(StoreConversions storeConversions, List userConverters) {
			super(storeConversions, userConverters, convertiblePair -> {

				if (convertiblePair.getSourceType().getName().startsWith("java.time.")
						&& convertiblePair.getTargetType().equals(Date.class)) {
					return false;
				}

				return true;
			});
		}
	}
}
    

    

    

            

    

            



    
    






    
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