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/*
 * This file is part of "lunisolar-magma".
 *
 * (C) Copyright 2014-2019 Lunisolar (http://lunisolar.eu/).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package eu.lunisolar.magma.func.function.to;

import javax.annotation.Nonnull; // NOSONAR
import javax.annotation.Nullable; // NOSONAR
import java.util.Comparator; // NOSONAR
import java.util.Objects; // NOSONAR
import eu.lunisolar.magma.basics.*; //NOSONAR
import eu.lunisolar.magma.basics.builder.*; // NOSONAR
import eu.lunisolar.magma.basics.exceptions.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.aType.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.functional.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.functional.type.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.functional.domain.*; // NOSONAR
import eu.lunisolar.magma.func.IA;
import eu.lunisolar.magma.func.SA;
import eu.lunisolar.magma.func.*; // NOSONAR
import eu.lunisolar.magma.func.tuple.*; // NOSONAR
import java.util.function.*; // NOSONAR
import java.util.*; // NOSONAR
import java.lang.reflect.*;

import eu.lunisolar.magma.func.action.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.bi.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.obj.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.tri.*; // NOSONAR
import eu.lunisolar.magma.func.function.*; // NOSONAR
import eu.lunisolar.magma.func.function.conversion.*; // NOSONAR
import eu.lunisolar.magma.func.function.from.*; // NOSONAR
import eu.lunisolar.magma.func.function.to.*; // NOSONAR
import eu.lunisolar.magma.func.operator.binary.*; // NOSONAR
import eu.lunisolar.magma.func.operator.ternary.*; // NOSONAR
import eu.lunisolar.magma.func.operator.unary.*; // NOSONAR
import eu.lunisolar.magma.func.predicate.*; // NOSONAR
import eu.lunisolar.magma.func.supplier.*; // NOSONAR

/**
 * Non-throwing functional interface (lambda) LToByteBiFunction for Java 8.
 *
 * Type: function
 *
 * Domain (lvl: 2): T1 a1,T2 a2
 *
 * Co-domain: byte
 *
 */
@FunctionalInterface
@SuppressWarnings("UnusedDeclaration")
public interface LToByteBiFunction extends MetaFunction, MetaInterface.NonThrowing, Codomain, Domain2, a> { // NOSONAR

	String DESCRIPTION = "LToByteBiFunction: byte applyAsByte(T1 a1,T2 a2)";

	// byte applyAsByte(T1 a1,T2 a2) ;
	default byte applyAsByte(T1 a1, T2 a2) {
		// return nestingApplyAsByte(a1,a2);
		try {
			return this.applyAsByteX(a1, a2);
		} catch (Throwable e) { // NOSONAR
			throw Handling.nestCheckedAndThrow(e);
		}
	}

	/**
	 * Implement this, but call applyAsByte(T1 a1,T2 a2)
	 */
	byte applyAsByteX(T1 a1, T2 a2) throws Throwable;

	default byte tupleApplyAsByte(LPair args) {
		return applyAsByte(args.first(), args.second());
	}

	/** Function call that handles exceptions according to the instructions. */
	default byte handlingApplyAsByte(T1 a1, T2 a2, HandlingInstructions handling) {
		try {
			return this.applyAsByteX(a1, a2);
		} catch (Throwable e) { // NOSONAR
			throw Handler.handleOrNest(e, handling);
		}
	}

	default LToByteBiFunction handling(HandlingInstructions handling) {
		return (a1, a2) -> handlingApplyAsByte(a1, a2, handling);
	}

	default byte applyAsByte(T1 a1, T2 a2, @Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
		try {
			return this.applyAsByteX(a1, a2);
		} catch (Throwable e) { // NOSONAR
			throw Handling.wrap(e, exF, newMessage, messageParams);
		}
	}

	default LToByteBiFunction trying(@Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
		return (a1, a2) -> applyAsByte(a1, a2, exF, newMessage, messageParams);
	}

	default byte applyAsByte(T1 a1, T2 a2, @Nonnull ExWF exF) {
		try {
			return this.applyAsByteX(a1, a2);
		} catch (Throwable e) { // NOSONAR
			throw Handling.wrap(e, exF);
		}
	}

	default LToByteBiFunction trying(@Nonnull ExWF exF) {
		return (a1, a2) -> applyAsByte(a1, a2, exF);
	}

	default byte applyAsByteThen(T1 a1, T2 a2, @Nonnull LToByteFunction handler) {
		try {
			return this.applyAsByteX(a1, a2);
		} catch (Throwable e) { // NOSONAR
			Handling.handleErrors(e);
			return handler.applyAsByte(e);
		}
	}

	default LToByteBiFunction tryingThen(@Nonnull LToByteFunction handler) {
		return (a1, a2) -> applyAsByteThen(a1, a2, handler);
	}

	/** Function call that handles exceptions by always nesting checked exceptions and propagating the others as is. */
	default byte nestingApplyAsByte(T1 a1, T2 a2) {
		try {
			return this.applyAsByteX(a1, a2);
		} catch (Throwable e) { // NOSONAR
			throw Handling.nestCheckedAndThrow(e);
		}
	}

	/** Function call that handles exceptions by always propagating them as is, even when they are undeclared checked ones. */
	default byte shovingApplyAsByte(T1 a1, T2 a2) {
		try {
			return this.applyAsByteX(a1, a2);
		} catch (Throwable e) { // NOSONAR
			throw Handling.shoveIt(e);
		}
	}

	static  byte handlingApplyAsByte(T1 a1, T2 a2, LToByteBiFunction func, HandlingInstructions handling) { // <-
		Null.nonNullArg(func, "func");
		return func.handlingApplyAsByte(a1, a2, handling);
	}

	static  byte tryApplyAsByte(T1 a1, T2 a2, LToByteBiFunction func) {
		Null.nonNullArg(func, "func");
		return func.nestingApplyAsByte(a1, a2);
	}

	static  byte tryApplyAsByte(T1 a1, T2 a2, LToByteBiFunction func, @Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
		Null.nonNullArg(func, "func");
		return func.applyAsByte(a1, a2, exF, newMessage, messageParams);
	}

	static  byte tryApplyAsByte(T1 a1, T2 a2, LToByteBiFunction func, @Nonnull ExWF exF) {
		Null.nonNullArg(func, "func");
		return func.applyAsByte(a1, a2, exF);
	}

	static  byte tryApplyAsByteThen(T1 a1, T2 a2, LToByteBiFunction func, @Nonnull LToByteFunction handler) {
		Null.nonNullArg(func, "func");
		return func.applyAsByteThen(a1, a2, handler);
	}

	default byte failSafeApplyAsByte(T1 a1, T2 a2, @Nonnull LToByteBiFunction failSafe) {
		try {
			return applyAsByte(a1, a2);
		} catch (Throwable e) { // NOSONAR
			Handling.handleErrors(e);
			return failSafe.applyAsByte(a1, a2);
		}
	}

	static  byte failSafeApplyAsByte(T1 a1, T2 a2, LToByteBiFunction func, @Nonnull LToByteBiFunction failSafe) {
		Null.nonNullArg(failSafe, "failSafe");
		if (func == null) {
			return failSafe.applyAsByte(a1, a2);
		} else {
			return func.failSafeApplyAsByte(a1, a2, failSafe);
		}
	}

	static  LToByteBiFunction failSafe(LToByteBiFunction func, @Nonnull LToByteBiFunction failSafe) {
		Null.nonNullArg(failSafe, "failSafe");
		return (a1, a2) -> failSafeApplyAsByte(a1, a2, func, failSafe);
	}

	/** Just to mirror the method: Ensures the result is not null */
	default byte nonNullApplyAsByte(T1 a1, T2 a2) {
		return applyAsByte(a1, a2);
	}

	/** Returns description of the functional interface. */
	@Nonnull
	default String functionalInterfaceDescription() {
		return LToByteBiFunction.DESCRIPTION;
	}

	/** From-To. Intended to be used with non-capturing lambda. */
	public static  void fromTo(int min_i, int max_i, T1 a1, T2 a2, LToByteBiFunction func) {
		Null.nonNullArg(func, "func");
		if (min_i <= max_i) {
			for (int i = min_i; i <= max_i; i++) {
				func.applyAsByte(a1, a2);
			}
		} else {
			for (int i = min_i; i >= max_i; i--) {
				func.applyAsByte(a1, a2);
			}
		}
	}

	/** From-To. Intended to be used with non-capturing lambda. */
	public static  void fromTill(int min_i, int max_i, T1 a1, T2 a2, LToByteBiFunction func) {
		Null.nonNullArg(func, "func");
		if (min_i <= max_i) {
			for (int i = min_i; i < max_i; i++) {
				func.applyAsByte(a1, a2);
			}
		} else {
			for (int i = min_i; i > max_i; i--) {
				func.applyAsByte(a1, a2);
			}
		}
	}

	/** From-To. Intended to be used with non-capturing lambda. */
	public static  void times(int max_i, T1 a1, T2 a2, LToByteBiFunction func) {
		if (max_i < 0)
			return;
		fromTill(0, max_i, a1, a2, func);
	}

	public default LToByteFunction lShrink(LFunction left) {
		return a2 -> applyAsByte(left.apply(a2), a2);
	}

	public default LToByteFunction lShrinkc(T1 a1) {
		return a2 -> applyAsByte(a1, a2);
	}

	public static  LToByteFunction lShrinked(LFunction left, LToByteBiFunction func) {
		return func.lShrink(left);
	}

	public static  LToByteFunction lShrinkedc(T1 a1, LToByteBiFunction func) {
		return func.lShrinkc(a1);
	}

	public default LToByteFunction rShrink(LFunction right) {
		return a1 -> applyAsByte(a1, right.apply(a1));
	}

	public default LToByteFunction rShrinkc(T2 a2) {
		return a1 -> applyAsByte(a1, a2);
	}

	public static  LToByteFunction rShrinked(LFunction right, LToByteBiFunction func) {
		return func.rShrink(right);
	}

	public static  LToByteFunction rShrinkedc(T2 a2, LToByteBiFunction func) {
		return func.rShrinkc(a2);
	}

	/**  */
	public static  LToByteBiFunction uncurry(LFunction> func) {
		return (T1 a1, T2 a2) -> func.apply(a1).applyAsByte(a2);
	}

	/** Cast that removes generics. */
	public default LToByteBiFunction untyped() {
		return this;
	}

	/** Cast that replace generics. */
	public default  LToByteBiFunction cast() {
		return untyped();
	}

	/** Cast that replace generics. */
	public static  LToByteBiFunction cast(LToByteBiFunction function) {
		return (LToByteBiFunction) function;
	}

	/** Captures arguments but delays the evaluation. */
	default LByteSupplier capture(T1 a1, T2 a2) {
		return () -> this.applyAsByte(a1, a2);
	}

	/** Creates function that always returns the same value. */
	static  LToByteBiFunction constant(byte r) {
		return (a1, a2) -> r;
	}

	/** Captures single parameter function into this interface where only 1st parameter will be used. */
	@Nonnull
	static  LToByteBiFunction apply1stAsByte(@Nonnull LToByteFunction func) {
		return (a1, a2) -> func.applyAsByte(a1);
	}

	/** Captures single parameter function into this interface where only 2nd parameter will be used. */
	@Nonnull
	static  LToByteBiFunction apply2ndAsByte(@Nonnull LToByteFunction func) {
		return (a1, a2) -> func.applyAsByte(a2);
	}

	/** Convenient method in case lambda expression is ambiguous for the compiler (that might happen for overloaded methods accepting different interfaces). */
	@Nonnull
	static  LToByteBiFunction toByteBiFunc(final @Nonnull LToByteBiFunction lambda) {
		Null.nonNullArg(lambda, "lambda");
		return lambda;
	}

	@Nonnull
	static  LToByteBiFunction recursive(final @Nonnull LFunction, LToByteBiFunction> selfLambda) {
		final LToByteBiFunctionSingle single = new LToByteBiFunctionSingle();
		LToByteBiFunction func = selfLambda.apply(single);
		single.target = func;
		return func;
	}

	final class LToByteBiFunctionSingle implements LSingle>, LToByteBiFunction {
		private LToByteBiFunction target = null;

		@Override
		public byte applyAsByteX(T1 a1, T2 a2) throws Throwable {
			return target.applyAsByteX(a1, a2);
		}

		@Override
		public LToByteBiFunction value() {
			return target;
		}
	}

	@Nonnull
	static  LToByteBiFunction toByteBiFuncThrowing(final @Nonnull ExF exF) {
		Null.nonNullArg(exF, "exF");
		return (a1, a2) -> {
			throw exF.produce();
		};
	}

	@Nonnull
	static  LToByteBiFunction toByteBiFuncThrowing(final String message, final @Nonnull ExMF exF) {
		Null.nonNullArg(exF, "exF");
		return (a1, a2) -> {
			throw exF.produce(message);
		};
	}

	// 

	/** Convenient method in case lambda expression is ambiguous for the compiler (that might happen for overloaded methods accepting different interfaces). */
	@Nonnull
	static  LToByteObj1Obj0Func toByteObj1Obj0Func(final @Nonnull LToByteObj1Obj0Func lambda) {
		Null.nonNullArg(lambda, "lambda");
		return lambda;
	}

	// 

	static  byte call(T1 a1, T2 a2, final @Nonnull LToByteBiFunction lambda) {
		Null.nonNullArg(lambda, "lambda");
		return lambda.applyAsByte(a1, a2);
	}

	// 

	// 

	// 

	/** Safe instance. That always returns the same value (as produceByte). */
	@Nonnull
	static  LToByteBiFunction safe() {
		return LToByteBiFunction::produceByte;
	}

	/** Safe instance supplier. Returns supplier of safe() instance. */
	@Nonnull
	static  LSupplier> safeSupplier() {
		return () -> safe();
	}

	/** Safe wrapping. Either argument function is returned (if it is not null) or safe() instance. */
	@Nonnull
	static  LToByteBiFunction safe(final @Nullable LToByteBiFunction other) {
		if (other == null) {
			return safe();
		} else {
			return other;
		}
	}

	/** Safe supplier. Either argument supplier is returned (if it is not null) or supplier of safe() instance. */
	@Nonnull
	static  LSupplier> safeSupplier(final @Nullable LSupplier> supplier) {
		if (supplier == null) {
			return safeSupplier();
		} else {
			return supplier;
		}
	}

	// 

	// 

	/** Allows to manipulate the domain of the function. */
	@Nonnull
	default  LToByteBiFunction compose(@Nonnull final LFunction before1, @Nonnull final LFunction before2) {
		Null.nonNullArg(before1, "before1");
		Null.nonNullArg(before2, "before2");
		return (v1, v2) -> this.applyAsByte(before1.apply(v1), before2.apply(v2));
	}

	public static  LToByteBiFunction composed(@Nonnull final LFunction before1, @Nonnull final LFunction before2, LToByteBiFunction after) {
		return after.compose(before1, before2);
	}

	// 

	// 

	/** Combines two functions together in a order. */
	@Nonnull
	default  LBiFunction then(@Nonnull LByteFunction after) {
		Null.nonNullArg(after, "after");
		return (a1, a2) -> after.apply(this.applyAsByte(a1, a2));
	}

	/** Combines two functions together in a order. */
	@Nonnull
	default LToByteBiFunction thenToByte(@Nonnull LByteUnaryOperator after) {
		Null.nonNullArg(after, "after");
		return (a1, a2) -> after.applyAsByte(this.applyAsByte(a1, a2));
	}

	/** Combines two functions together in a order. */
	@Nonnull
	default LToSrtBiFunction thenToSrt(@Nonnull LByteToSrtFunction after) {
		Null.nonNullArg(after, "after");
		return (a1, a2) -> after.applyAsSrt(this.applyAsByte(a1, a2));
	}

	/** Combines two functions together in a order. */
	@Nonnull
	default LToIntBiFunction thenToInt(@Nonnull LByteToIntFunction after) {
		Null.nonNullArg(after, "after");
		return (a1, a2) -> after.applyAsInt(this.applyAsByte(a1, a2));
	}

	/** Combines two functions together in a order. */
	@Nonnull
	default LToLongBiFunction thenToLong(@Nonnull LByteToLongFunction after) {
		Null.nonNullArg(after, "after");
		return (a1, a2) -> after.applyAsLong(this.applyAsByte(a1, a2));
	}

	/** Combines two functions together in a order. */
	@Nonnull
	default LToFltBiFunction thenToFlt(@Nonnull LByteToFltFunction after) {
		Null.nonNullArg(after, "after");
		return (a1, a2) -> after.applyAsFlt(this.applyAsByte(a1, a2));
	}

	/** Combines two functions together in a order. */
	@Nonnull
	default LToDblBiFunction thenToDbl(@Nonnull LByteToDblFunction after) {
		Null.nonNullArg(after, "after");
		return (a1, a2) -> after.applyAsDbl(this.applyAsByte(a1, a2));
	}

	/** Combines two functions together in a order. */
	@Nonnull
	default LToCharBiFunction thenToChar(@Nonnull LByteToCharFunction after) {
		Null.nonNullArg(after, "after");
		return (a1, a2) -> after.applyAsChar(this.applyAsByte(a1, a2));
	}

	/** Combines two functions together in a order. */
	@Nonnull
	default LBiPredicate thenToBool(@Nonnull LBytePredicate after) {
		Null.nonNullArg(after, "after");
		return (a1, a2) -> after.test(this.applyAsByte(a1, a2));
	}

	// 

	// 

	// 

	// 

	/** Permutation of LToByteBiFunction for method references. */
	@FunctionalInterface
	interface LToByteObj1Obj0Func extends LToByteBiFunction {

		byte applyAsByteObj1Obj0(T2 a2, T1 a1);

		@Override
		default byte applyAsByteX(T1 a1, T2 a2) {
			return this.applyAsByteObj1Obj0(a2, a1);
		}
	}

	// 

	/** Does nothing (LToByteBiFunction) Function */
	public static  byte produceByte(T1 a1, T2 a2) {
		return Function4U.defaultByte;
	}

	/**
	* For each element (or tuple) from arguments, calls the function and passes the result to consumer.
	* Thread safety, fail-fast, fail-safety of this method is not expected.
	*/
	default  void forEach(IndexedRead> ia1, C1 source1, IndexedRead> ia2, C2 source2, LByteConsumer consumer) {
		int size = ia1.size(source1);
		LOiFunction oiFunc1 = (LOiFunction) ia1.getter();
		size = Integer.min(size, ia2.size(source2));
		LOiFunction oiFunc2 = (LOiFunction) ia2.getter();
		int i = 0;
		for (; i < size; i++) {
			T1 a1 = oiFunc1.apply(source1, i);
			T2 a2 = oiFunc2.apply(source2, i);
			consumer.accept(this.applyAsByte(a1, a2));
		}
	}

	/**
	* For each element (or tuple) from arguments, calls the function and passes the result to consumer.
	* Thread safety, fail-fast, fail-safety of this method is not expected.
	*/
	default  void iterate(SequentialRead> sa1, C1 source1, IndexedRead> ia2, C2 source2, LByteConsumer consumer) {
		Object iterator1 = ((LFunction) sa1.adapter()).apply(source1);
		LPredicate testFunc1 = (LPredicate) sa1.tester();
		LFunction nextFunc1 = (LFunction) sa1.supplier();
		int size = ia2.size(source2);
		LOiFunction oiFunc2 = (LOiFunction) ia2.getter();
		int i = 0;
		while (testFunc1.test(iterator1) && i < size) {
			T1 a1 = nextFunc1.apply(iterator1);
			T2 a2 = oiFunc2.apply(source2, i);
			consumer.accept(this.applyAsByte(a1, a2));
			i++;
		}
	}

	/**
	* For each element (or tuple) from arguments, calls the function and passes the result to consumer.
	* Thread safety, fail-fast, fail-safety of this method is not expected.
	*/
	default  void iterate(IndexedRead> ia1, C1 source1, SequentialRead> sa2, C2 source2, LByteConsumer consumer) {
		int size = ia1.size(source1);
		LOiFunction oiFunc1 = (LOiFunction) ia1.getter();
		Object iterator2 = ((LFunction) sa2.adapter()).apply(source2);
		LPredicate testFunc2 = (LPredicate) sa2.tester();
		LFunction nextFunc2 = (LFunction) sa2.supplier();
		int i = 0;
		while (i < size && testFunc2.test(iterator2)) {
			T1 a1 = oiFunc1.apply(source1, i);
			T2 a2 = nextFunc2.apply(iterator2);
			consumer.accept(this.applyAsByte(a1, a2));
			i++;
		}
	}

	/**
	* For each element (or tuple) from arguments, calls the function and passes the result to consumer.
	* Thread safety, fail-fast, fail-safety of this method depends highly on the arguments.
	*/
	default  void iterate(SequentialRead> sa1, C1 source1, SequentialRead> sa2, C2 source2, LByteConsumer consumer) {
		Object iterator1 = ((LFunction) sa1.adapter()).apply(source1);
		LPredicate testFunc1 = (LPredicate) sa1.tester();
		LFunction nextFunc1 = (LFunction) sa1.supplier();
		Object iterator2 = ((LFunction) sa2.adapter()).apply(source2);
		LPredicate testFunc2 = (LPredicate) sa2.tester();
		LFunction nextFunc2 = (LFunction) sa2.supplier();
		while (testFunc1.test(iterator1) && testFunc2.test(iterator2)) {
			T1 a1 = nextFunc1.apply(iterator1);
			T2 a2 = nextFunc2.apply(iterator2);
			consumer.accept(this.applyAsByte(a1, a2));
		}
	}

}