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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.conversion;

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) LByteToLongFunction for Java 8.
 *
 * Type: function
 *
 * Domain (lvl: 1): byte a
 *
 * Co-domain: long
 *
 */
@FunctionalInterface
@SuppressWarnings("UnusedDeclaration")
public interface LByteToLongFunction extends MetaFunction, MetaInterface.NonThrowing, Codomain, Domain1 { // NOSONAR

	String DESCRIPTION = "LByteToLongFunction: long applyAsLong(byte a)";

	// long applyAsLong(byte a) ;
	default long applyAsLong(byte a) {
		// return nestingApplyAsLong(a);
		try {
			return this.applyAsLongX(a);
		} catch (Throwable e) { // NOSONAR
			throw Handling.nestCheckedAndThrow(e);
		}
	}

	/**
	 * Implement this, but call applyAsLong(byte a)
	 */
	long applyAsLongX(byte a) throws Throwable;

	default long tupleApplyAsLong(LByteSingle args) {
		return applyAsLong(args.value());
	}

	/** Function call that handles exceptions according to the instructions. */
	default long handlingApplyAsLong(byte a, HandlingInstructions handling) {
		try {
			return this.applyAsLongX(a);
		} catch (Throwable e) { // NOSONAR
			throw Handler.handleOrNest(e, handling);
		}
	}

	default LByteToLongFunction handling(HandlingInstructions handling) {
		return a -> handlingApplyAsLong(a, handling);
	}

	default long applyAsLong(byte a, @Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
		try {
			return this.applyAsLongX(a);
		} catch (Throwable e) { // NOSONAR
			throw Handling.wrap(e, exF, newMessage, messageParams);
		}
	}

	default LByteToLongFunction trying(@Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
		return a -> applyAsLong(a, exF, newMessage, messageParams);
	}

	default long applyAsLong(byte a, @Nonnull ExWF exF) {
		try {
			return this.applyAsLongX(a);
		} catch (Throwable e) { // NOSONAR
			throw Handling.wrap(e, exF);
		}
	}

	default LByteToLongFunction trying(@Nonnull ExWF exF) {
		return a -> applyAsLong(a, exF);
	}

	default long applyAsLongThen(byte a, @Nonnull LToLongFunction handler) {
		try {
			return this.applyAsLongX(a);
		} catch (Throwable e) { // NOSONAR
			Handling.handleErrors(e);
			return handler.applyAsLong(e);
		}
	}

	default LByteToLongFunction tryingThen(@Nonnull LToLongFunction handler) {
		return a -> applyAsLongThen(a, handler);
	}

	/** Function call that handles exceptions by always nesting checked exceptions and propagating the others as is. */
	default long nestingApplyAsLong(byte a) {
		try {
			return this.applyAsLongX(a);
		} 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 long shovingApplyAsLong(byte a) {
		try {
			return this.applyAsLongX(a);
		} catch (Throwable e) { // NOSONAR
			throw Handling.shoveIt(e);
		}
	}

	static long handlingApplyAsLong(byte a, LByteToLongFunction func, HandlingInstructions handling) { // <-
		Null.nonNullArg(func, "func");
		return func.handlingApplyAsLong(a, handling);
	}

	static long tryApplyAsLong(byte a, LByteToLongFunction func) {
		Null.nonNullArg(func, "func");
		return func.nestingApplyAsLong(a);
	}

	static long tryApplyAsLong(byte a, LByteToLongFunction func, @Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
		Null.nonNullArg(func, "func");
		return func.applyAsLong(a, exF, newMessage, messageParams);
	}

	static long tryApplyAsLong(byte a, LByteToLongFunction func, @Nonnull ExWF exF) {
		Null.nonNullArg(func, "func");
		return func.applyAsLong(a, exF);
	}

	static long tryApplyAsLongThen(byte a, LByteToLongFunction func, @Nonnull LToLongFunction handler) {
		Null.nonNullArg(func, "func");
		return func.applyAsLongThen(a, handler);
	}

	default long failSafeApplyAsLong(byte a, @Nonnull LByteToLongFunction failSafe) {
		try {
			return applyAsLong(a);
		} catch (Throwable e) { // NOSONAR
			Handling.handleErrors(e);
			return failSafe.applyAsLong(a);
		}
	}

	static long failSafeApplyAsLong(byte a, LByteToLongFunction func, @Nonnull LByteToLongFunction failSafe) {
		Null.nonNullArg(failSafe, "failSafe");
		if (func == null) {
			return failSafe.applyAsLong(a);
		} else {
			return func.failSafeApplyAsLong(a, failSafe);
		}
	}

	static LByteToLongFunction failSafe(LByteToLongFunction func, @Nonnull LByteToLongFunction failSafe) {
		Null.nonNullArg(failSafe, "failSafe");
		return a -> failSafeApplyAsLong(a, func, failSafe);
	}

	/** Just to mirror the method: Ensures the result is not null */
	default long nonNullApplyAsLong(byte a) {
		return applyAsLong(a);
	}

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

	/** From-To. Intended to be used with non-capturing lambda. */
	public static void fromTo(int min_i, int max_i, byte a, LByteToLongFunction func) {
		Null.nonNullArg(func, "func");
		if (min_i <= max_i) {
			for (int i = min_i; i <= max_i; i++) {
				func.applyAsLong(a);
			}
		} else {
			for (int i = min_i; i >= max_i; i--) {
				func.applyAsLong(a);
			}
		}
	}

	/** From-To. Intended to be used with non-capturing lambda. */
	public static void fromTill(int min_i, int max_i, byte a, LByteToLongFunction func) {
		Null.nonNullArg(func, "func");
		if (min_i <= max_i) {
			for (int i = min_i; i < max_i; i++) {
				func.applyAsLong(a);
			}
		} else {
			for (int i = min_i; i > max_i; i--) {
				func.applyAsLong(a);
			}
		}
	}

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

	/** Captures arguments but delays the evaluation. */
	default LLongSupplier capture(byte a) {
		return () -> this.applyAsLong(a);
	}

	/** Creates function that always returns the same value. */
	static LByteToLongFunction constant(long r) {
		return a -> r;
	}

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

	@Nonnull
	static LByteToLongFunction recursive(final @Nonnull LFunction selfLambda) {
		final LByteToLongFunctionSingle single = new LByteToLongFunctionSingle();
		LByteToLongFunction func = selfLambda.apply(single);
		single.target = func;
		return func;
	}

	final class LByteToLongFunctionSingle implements LSingle, LByteToLongFunction {
		private LByteToLongFunction target = null;

		@Override
		public long applyAsLongX(byte a) throws Throwable {
			return target.applyAsLongX(a);
		}

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

	@Nonnull
	static LByteToLongFunction byteToLongFuncThrowing(final @Nonnull ExF exF) {
		Null.nonNullArg(exF, "exF");
		return a -> {
			throw exF.produce();
		};
	}

	@Nonnull
	static LByteToLongFunction byteToLongFuncThrowing(final String message, final @Nonnull ExMF exF) {
		Null.nonNullArg(exF, "exF");
		return a -> {
			throw exF.produce(message);
		};
	}

	static long call(byte a, final @Nonnull LByteToLongFunction lambda) {
		Null.nonNullArg(lambda, "lambda");
		return lambda.applyAsLong(a);
	}

	// 

	// 

	// 

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

	/** 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 LByteToLongFunction safe(final @Nullable LByteToLongFunction 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 LByteToLongFunction compose(@Nonnull final LByteUnaryOperator before) {
		Null.nonNullArg(before, "before");
		return v -> this.applyAsLong(before.applyAsByte(v));
	}

	public static LByteToLongFunction composed(@Nonnull final LByteUnaryOperator before, LByteToLongFunction after) {
		return after.compose(before);
	}

	/** Allows to manipulate the domain of the function. */
	@Nonnull
	default  LToLongFunction byteToLongFuncCompose(@Nonnull final LToByteFunction before) {
		Null.nonNullArg(before, "before");
		return v -> this.applyAsLong(before.applyAsByte(v));
	}

	public static  LToLongFunction composed(@Nonnull final LToByteFunction before, LByteToLongFunction after) {
		return after.byteToLongFuncCompose(before);
	}

	// 

	// 

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

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

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

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

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

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

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

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

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

	// 

	// 

	// 

	/** Does nothing (LByteToLongFunction) Function */
	public static long produceLong(byte a) {
		return Function4U.defaultLong;
	}

	/**
	* 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 ia, C0 source, LLongConsumer consumer) {
		int size = ia.size(source);
		LOiToByteFunction oiFunc0 = (LOiToByteFunction) ia.getter();
		int i = 0;
		for (; i < size; i++) {
			byte a = oiFunc0.applyAsByte(source, i);
			consumer.accept(this.applyAsLong(a));
		}
	}

	/**
	* 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 sa, C0 source, LLongConsumer consumer) {
		Object iterator0 = ((LFunction) sa.adapter()).apply(source);
		LPredicate testFunc0 = (LPredicate) sa.tester();
		LToByteFunction nextFunc0 = (LToByteFunction) sa.supplier();
		while (testFunc0.test(iterator0)) {
			byte a = nextFunc0.applyAsByte(iterator0);
			consumer.accept(this.applyAsLong(a));
		}
	}

}