/*
 * Copyright (c) 2018 Goldman Sachs.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v. 1.0 which accompany this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 */

package org.eclipse.collections.impl.map.mutable.primitive;

import java.io.IOException;
import java.util.Arrays;
import java.util.NoSuchElementException;

import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.IntIterable;
import org.eclipse.collections.api.LazyIntIterable;
import org.eclipse.collections.api.bag.primitive.MutableIntBag;
import org.eclipse.collections.api.block.function.primitive.IntToObjectFunction;
import org.eclipse.collections.api.block.function.primitive.ObjectIntToObjectFunction;
import org.eclipse.collections.api.block.predicate.primitive.IntPredicate;
import org.eclipse.collections.api.block.procedure.primitive.IntProcedure;
import org.eclipse.collections.api.iterator.IntIterator;
import org.eclipse.collections.api.list.MutableList;
import org.eclipse.collections.api.list.primitive.MutableIntList;
import org.eclipse.collections.api.set.primitive.ImmutableIntSet;
import org.eclipse.collections.impl.bag.mutable.primitive.IntHashBag;
import org.eclipse.collections.impl.factory.Lists;
import org.eclipse.collections.impl.factory.primitive.IntSets;
import org.eclipse.collections.impl.lazy.primitive.LazyIntIterableAdapter;
import org.eclipse.collections.impl.list.mutable.primitive.IntArrayList;
import org.eclipse.collections.api.set.primitive.IntSet;
import org.eclipse.collections.api.set.MutableSet;
import org.eclipse.collections.api.set.primitive.MutableIntSet;
import org.eclipse.collections.impl.factory.Sets;
import org.eclipse.collections.impl.set.mutable.primitive.IntHashSet;
import org.eclipse.collections.impl.set.mutable.primitive.SynchronizedIntSet;
import org.eclipse.collections.impl.set.mutable.primitive.UnmodifiableIntSet;

This file was automatically generated from template file abstractMutablePrimitiveKeySet.stg.
Since:
6.0./**
 * This file was automatically generated from template file abstractMutablePrimitiveKeySet.stg.
 *
 * @since 6.0.
 */
public abstract class AbstractMutableIntKeySet implements MutableIntSet
{
    private static final int EMPTY_KEY = 0;
    private static final int REMOVED_KEY = 1;

    private static boolean isEmptyKey(int key)
    {
        return key == EMPTY_KEY;
    }

    private static boolean isRemovedKey(int key)
    {
        return key == REMOVED_KEY;
    }

    private static boolean isNonSentinel(int key)
    {
        return !isEmptyKey(key) && !isRemovedKey(key);
    }

    protected abstract int getKeyAtIndex(int index);

    protected abstract int getTableSize();

    protected abstract MutableIntKeysMap getOuter();

    protected abstract AbstractSentinelValues getSentinelValues();

    @Override
    public void forEach(IntProcedure procedure)
    {
        this.each(procedure);
    }

    
Since:
7.0./**
     * @since 7.0.
     */
    @Override
    public void each(IntProcedure procedure)
    {
        this.getOuter().forEachKey(procedure);
    }

    @Override
    public int count(IntPredicate predicate)
    {
        int count = 0;
        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey && predicate.accept(EMPTY_KEY))
            {
                count++;
            }
            if (this.getSentinelValues().containsOneKey && predicate.accept(REMOVED_KEY))
            {
                count++;
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)) && predicate.accept(this.getKeyAtIndex(i)))
            {
                count++;
            }
        }
        return count;
    }

    @Override
    public boolean anySatisfy(IntPredicate predicate)
    {
        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey && predicate.accept(EMPTY_KEY))
            {
                return true;
            }
            if (this.getSentinelValues().containsOneKey && predicate.accept(REMOVED_KEY))
            {
                return true;
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)) && predicate.accept(this.getKeyAtIndex(i)))
            {
                return true;
            }
        }
        return false;
    }

    @Override
    public boolean allSatisfy(IntPredicate predicate)
    {
        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey && !predicate.accept(EMPTY_KEY))
            {
                return false;
            }
            if (this.getSentinelValues().containsOneKey && !predicate.accept(REMOVED_KEY))
            {
                return false;
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)) && !predicate.accept(this.getKeyAtIndex(i)))
            {
                return false;
            }
        }
        return true;
    }

    @Override
    public boolean noneSatisfy(IntPredicate predicate)
    {
        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey && predicate.accept(EMPTY_KEY))
            {
                return false;
            }
            if (this.getSentinelValues().containsOneKey && predicate.accept(REMOVED_KEY))
            {
                return false;
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)) && predicate.accept(this.getKeyAtIndex(i)))
            {
                return false;
            }
        }
        return true;
    }

    @Override
    public boolean add(int element)
    {
        throw new UnsupportedOperationException("Cannot call add() on " + this.getClass().getSimpleName());
    }

    @Override
    public boolean addAll(int... source)
    {
        throw new UnsupportedOperationException("Cannot call addAll() on " + this.getClass().getSimpleName());
    }

    @Override
    public boolean addAll(IntIterable source)
    {
        throw new UnsupportedOperationException("Cannot call addAll() on " + this.getClass().getSimpleName());
    }

    @Override
    public MutableIntSet select(IntPredicate predicate)
    {
        MutableIntSet result = new IntHashSet();
        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey && predicate.accept(EMPTY_KEY))
            {
                result.add(EMPTY_KEY);
            }
            if (this.getSentinelValues().containsOneKey && predicate.accept(REMOVED_KEY))
            {
                result.add(REMOVED_KEY);
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)) && predicate.accept(this.getKeyAtIndex(i)))
            {
                result.add(this.getKeyAtIndex(i));
            }
        }
        return result;
    }

    @Override
    public MutableIntSet reject(IntPredicate predicate)
    {
        MutableIntSet result = new IntHashSet();
        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey && !predicate.accept(EMPTY_KEY))
            {
                result.add(EMPTY_KEY);
            }
            if (this.getSentinelValues().containsOneKey && !predicate.accept(REMOVED_KEY))
            {
                result.add(REMOVED_KEY);
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)) && !predicate.accept(this.getKeyAtIndex(i)))
            {
                result.add(this.getKeyAtIndex(i));
            }
        }
        return result;
    }

    @Override
    public MutableIntSet with(int element)
    {
        throw new UnsupportedOperationException("Cannot call with() on " + this.getClass().getSimpleName());
    }

    @Override
    public MutableIntSet without(int element)
    {
        throw new UnsupportedOperationException("Cannot call without() on " + this.getClass().getSimpleName());
    }

    @Override
    public MutableIntSet withAll(IntIterable elements)
    {
        throw new UnsupportedOperationException("Cannot call withAll() on " + this.getClass().getSimpleName());
    }

    @Override
    public MutableIntSet withoutAll(IntIterable elements)
    {
        throw new UnsupportedOperationException("Cannot call withoutAll() on " + this.getClass().getSimpleName());
    }

    @Override
    public <V> MutableSet<V> collect(IntToObjectFunction<? extends V> function)
    {
        MutableSet<V> result = Sets.mutable.with();
        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey)
            {
                result.add(function.valueOf(EMPTY_KEY));
            }
            if (this.getSentinelValues().containsOneKey)
            {
                result.add(function.valueOf(REMOVED_KEY));
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)))
            {
                result.add(function.valueOf(this.getKeyAtIndex(i)));
            }
        }
        return result;
    }

    @Override
    public boolean remove(int key)
    {
        int oldSize = this.getOuter().size();
        this.getOuter().removeKey(key);
        return oldSize != this.getOuter().size();
    }

    @Override
    public boolean removeAll(IntIterable source)
    {
        int oldSize = this.getOuter().size();
        IntIterator iterator = source.intIterator();
        while (iterator.hasNext())
        {
            this.getOuter().removeKey(iterator.next());
        }
        return oldSize != this.getOuter().size();
    }

    @Override
    public boolean removeAll(int... source)
    {
        int oldSize = this.getOuter().size();
        for (int item : source)
        {
            this.getOuter().removeKey(item);
        }
        return oldSize != this.getOuter().size();
    }

    @Override
    public void clear()
    {
        this.getOuter().clear();
    }

    @Override
    public int detectIfNone(IntPredicate predicate, int ifNone)
    {
        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey && predicate.accept(EMPTY_KEY))
            {
                return EMPTY_KEY;
            }
            if (this.getSentinelValues().containsOneKey && predicate.accept(REMOVED_KEY))
            {
                return REMOVED_KEY;
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)) && predicate.accept(this.getKeyAtIndex(i)))
            {
                return this.getKeyAtIndex(i);
            }
        }
        return ifNone;
    }

    @Override
    public MutableIntSet asUnmodifiable()
    {
        return UnmodifiableIntSet.of(this);
    }

    @Override
    public MutableIntSet asSynchronized()
    {
        return SynchronizedIntSet.of(this);
    }

    @Override
    public long sum()
    {
        long result = 0L;
        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey)
            {
                result += EMPTY_KEY;
            }
            if (this.getSentinelValues().containsOneKey)
            {
                result += REMOVED_KEY;
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)))
            {
                result += this.getKeyAtIndex(i);
            }
        }
        return result;
    }

    @Override
    public int max()
    {
        if (this.getOuter().isEmpty())
        {
            throw new NoSuchElementException();
        }

        int max = 0;
        boolean isMaxSet = false;

        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey)
            {
                max = EMPTY_KEY;
                isMaxSet = true;
            }
            if (this.getSentinelValues().containsOneKey)
            {
                max = REMOVED_KEY;
                isMaxSet = true;
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)) && (!isMaxSet || max < this.getKeyAtIndex(i)))
            {
                max = this.getKeyAtIndex(i);
                isMaxSet = true;
            }
        }
        return max;
    }

    @Override
    public int maxIfEmpty(int defaultValue)
    {
        if (this.getOuter().isEmpty())
        {
            return defaultValue;
        }

        return this.max();
    }

    @Override
    public int min()
    {
        if (this.getOuter().isEmpty())
        {
            throw new NoSuchElementException();
        }

        int min = 0;
        boolean isMinSet = false;

        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey)
            {
                min = EMPTY_KEY;
                isMinSet = true;
            }
            if (this.getSentinelValues().containsOneKey && !isMinSet)
            {
                min = REMOVED_KEY;
                isMinSet = true;
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)) && (!isMinSet || this.getKeyAtIndex(i) < min))
            {
                min = this.getKeyAtIndex(i);
                isMinSet = true;
            }
        }
        return min;
    }

    @Override
    public int minIfEmpty(int defaultValue)
    {
        if (this.getOuter().isEmpty())
        {
            return defaultValue;
        }

        return this.min();
    }

    @Override
    public double average()
    {
        if (this.isEmpty())
        {
            throw new ArithmeticException();
        }
        return (double) this.sum() / (double) this.size();
    }

    @Override
    public double median()
    {
        if (this.isEmpty())
        {
            throw new ArithmeticException();
        }
        int[] sortedArray = this.toSortedArray();
        int middleIndex = sortedArray.length >> 1;
        if (sortedArray.length > 1 && (sortedArray.length & 1) == 0)
        {
            int first = sortedArray[middleIndex];
            int second = sortedArray[middleIndex - 1];
            return ((double) first + (double) second) / 2.0;
        }
        return (double) sortedArray[middleIndex];
    }

    @Override
    public int[] toSortedArray()
    {
        int[] array = this.toArray();
        Arrays.sort(array);
        return array;
    }

    @Override
    public MutableIntList toSortedList()
    {
        return IntArrayList.newList(this).sortThis();
    }

    @Override
    public int[] toArray()
    {
        int size = this.getOuter().size();
        final int[] result = new int[size];
        this.getOuter().forEachKey(new IntProcedure()
        {
            private int index;

            public void value(int each)
            {
                result[this.index] = each;
                this.index++;
            }
        });
        return result;
    }

    @Override
    public boolean contains(int value)
    {
        return this.getOuter().containsKey(value);
    }

    @Override
    public boolean containsAll(int... source)
    {
        for (int item : source)
        {
            if (!this.getOuter().containsKey(item))
            {
                return false;
            }
        }
        return true;
    }

    @Override
    public boolean containsAll(IntIterable source)
    {
        IntIterator iterator = source.intIterator();
        while (iterator.hasNext())
        {
            if (!this.getOuter().containsKey(iterator.next()))
            {
                return false;
            }
        }
        return true;
    }

    @Override
    public MutableIntList toList()
    {
        return IntArrayList.newList(this);
    }

    @Override
    public MutableIntSet toSet()
    {
        return IntHashSet.newSet(this);
    }

    @Override
    public MutableIntBag toBag()
    {
        return IntHashBag.newBag(this);
    }

    @Override
    public LazyIntIterable asLazy()
    {
        return new LazyIntIterableAdapter(this);
    }

    @Override
    public <T> T injectInto(T injectedValue, ObjectIntToObjectFunction<? super T, ? extends T> function)
    {
        T result = injectedValue;
        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey)
            {
                result = function.valueOf(result, EMPTY_KEY);
            }
            if (this.getSentinelValues().containsOneKey)
            {
                result = function.valueOf(result, REMOVED_KEY);
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)))
            {
                result = function.valueOf(result, this.getKeyAtIndex(i));
            }
        }
        return result;
    }

    @Override
    public ImmutableIntSet toImmutable()
    {
        return IntSets.immutable.withAll(this);
    }

    @Override
    public int size()
    {
        return this.getOuter().size();
    }

    @Override
    public boolean isEmpty()
    {
        return this.getOuter().isEmpty();
    }

    @Override
    public boolean notEmpty()
    {
        return this.getOuter().notEmpty();
    }

    @Override
    public boolean equals(Object obj)
    {
        if (this == obj)
        {
            return true;
        }

        if (!(obj instanceof IntSet))
        {
            return false;
        }

        IntSet other = (IntSet) obj;
        return this.size() == other.size() && this.containsAll(other.toArray());
    }

    @Override
    public int hashCode()
    {
        int result = 0;

        if (this.getSentinelValues() != null)
        {
            if (this.getSentinelValues().containsZeroKey)
            {
                result += EMPTY_KEY;
            }
            if (this.getSentinelValues().containsOneKey)
            {
                result += REMOVED_KEY;
            }
        }
        for (int i = 0; i < this.getTableSize(); i++)
        {
            if (isNonSentinel(this.getKeyAtIndex(i)))
            {
                result += this.getKeyAtIndex(i);
            }
        }

        return result;
    }

    @Override
    public String toString()
    {
        return this.makeString("[", ", ", "]");
    }

    @Override
    public String makeString()
    {
        return this.makeString(", ");
    }

    @Override
    public String makeString(String separator)
    {
        return this.makeString("", separator, "");
    }

    @Override
    public String makeString(String start, String separator, String end)
    {
        Appendable stringBuilder = new StringBuilder();
        this.appendString(stringBuilder, start, separator, end);
        return stringBuilder.toString();
    }

    @Override
    public void appendString(Appendable appendable)
    {
        this.appendString(appendable, ", ");
    }

    @Override
    public void appendString(Appendable appendable, String separator)
    {
        this.appendString(appendable, "", separator, "");
    }

    @Override
    public void appendString(Appendable appendable, String start, String separator, String end)
    {
        try
        {
            appendable.append(start);
            boolean first = true;
            if (this.getSentinelValues() != null)
            {
                if (this.getSentinelValues().containsZeroKey)
                {
                    appendable.append(String.valueOf(EMPTY_KEY));
                    first = false;
                }
                if (this.getSentinelValues().containsOneKey)
                {
                    if (!first)
                    {
                        appendable.append(separator);
                    }
                    appendable.append(String.valueOf(REMOVED_KEY));
                    first = false;
                }
            }
            for (int i = 0; i < this.getTableSize(); i++)
            {
                if (isNonSentinel(this.getKeyAtIndex(i)))
                {
                    if (!first)
                    {
                        appendable.append(separator);
                    }
                    appendable.append(String.valueOf(this.getKeyAtIndex(i)));
                    first = false;
                }
            }
            appendable.append(end);
        }
        catch (IOException e)
        {
            throw new RuntimeException(e);
        }
    }

    @Override
    public RichIterable<IntIterable> chunk(int size)
    {
        if (size <= 0)
        {
            throw new IllegalArgumentException("Size for groups must be positive but was: " + size);
        }
        MutableList<IntIterable> result = Lists.mutable.empty();
        if (this.notEmpty())
        {
            if (this.size() <= size)
            {
                result.add(IntSets.mutable.withAll(this));
            }
            else
            {
                IntIterator iterator = this.intIterator();
                while (iterator.hasNext())
                {
                    MutableIntSet batch = IntSets.mutable.empty();
                    for (int i = 0; i < size && iterator.hasNext(); i++)
                    {
                        batch.add(iterator.next());
                    }
                    result.add(batch);
                }
            }
        }
        return result;
    }
}