/*
 * 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.immutable.primitive;

import java.io.IOException;
import java.io.Serializable;
import java.util.Set;

import org.eclipse.collections.api.DoubleIterable;
import org.eclipse.collections.api.LazyDoubleIterable;
import org.eclipse.collections.api.LazyIterable;
import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.bag.primitive.MutableDoubleBag;
import org.eclipse.collections.api.block.function.primitive.DoubleToObjectFunction;
import org.eclipse.collections.api.block.function.primitive.ObjectDoubleToObjectFunction;
import org.eclipse.collections.api.block.predicate.primitive.DoublePredicate;
import org.eclipse.collections.api.block.predicate.primitive.ObjectDoublePredicate;
import org.eclipse.collections.api.block.procedure.Procedure;
import org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure;
import org.eclipse.collections.api.block.procedure.primitive.ObjectDoubleProcedure;
import org.eclipse.collections.api.collection.ImmutableCollection;
import org.eclipse.collections.api.collection.primitive.ImmutableDoubleCollection;
import org.eclipse.collections.api.collection.primitive.MutableDoubleCollection;
import org.eclipse.collections.api.iterator.DoubleIterator;
import org.eclipse.collections.api.list.primitive.MutableDoubleList;
import org.eclipse.collections.api.map.primitive.ImmutableObjectDoubleMap;
import org.eclipse.collections.api.map.primitive.ImmutableDoubleObjectMap;
import org.eclipse.collections.api.map.primitive.ObjectDoubleMap;
import org.eclipse.collections.api.set.primitive.MutableDoubleSet;
import org.eclipse.collections.api.tuple.primitive.ObjectDoublePair;
import org.eclipse.collections.impl.bag.mutable.primitive.DoubleHashBag;
import org.eclipse.collections.impl.collection.mutable.primitive.UnmodifiableDoubleCollection;
import org.eclipse.collections.impl.factory.Lists;
import org.eclipse.collections.impl.factory.Sets;
import org.eclipse.collections.impl.factory.primitive.DoubleLists;
import org.eclipse.collections.impl.factory.primitive.ObjectDoubleMaps;
import org.eclipse.collections.impl.factory.primitive.DoubleObjectMaps;
import org.eclipse.collections.impl.iterator.UnmodifiableDoubleIterator;
import org.eclipse.collections.impl.lazy.primitive.LazyDoubleIterableAdapter;
import org.eclipse.collections.impl.list.mutable.primitive.DoubleArrayList;
import org.eclipse.collections.impl.map.mutable.primitive.ObjectDoubleHashMap;
import org.eclipse.collections.impl.set.mutable.primitive.DoubleHashSet;
import org.eclipse.collections.impl.tuple.primitive.PrimitiveTuples;

ImmutableObjectDoubleSingletonMap is an optimization for ImmutableObjectDoubleMap of size 1. This file was automatically generated from template file immutableObjectPrimitiveSingletonMap.stg. 
Since:
4.0./**
 * ImmutableObjectDoubleSingletonMap is an optimization for {@link ImmutableObjectDoubleMap} of size 1.
 * This file was automatically generated from template file immutableObjectPrimitiveSingletonMap.stg.
 *
 * @since 4.0.
 */
final class ImmutableObjectDoubleSingletonMap<K> extends AbstractImmutableObjectDoubleMap<K> implements Serializable
{
    private static final long serialVersionUID = 1L;
    private static final double EMPTY_VALUE = 0.0;
    private final K key1;
    private final double value1;

    ImmutableObjectDoubleSingletonMap(K key1, double value1)
    {
        this.key1 = key1;
        this.value1 = value1;
    }

    @Override
    public DoubleIterator doubleIterator()
    {
        return new UnmodifiableDoubleIterator(ObjectDoubleHashMap.newWithKeysValues(this.key1, this.value1).doubleIterator());
    }

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

    
Since:
7.0./**
     * @since 7.0.
     */
    @Override
    public void each(DoubleProcedure procedure)
    {
        procedure.value(this.value1);
    }

    @Override
    public int count(DoublePredicate predicate)
    {
        return predicate.accept(this.value1) ? 1 : 0;
    }

    @Override
    public boolean anySatisfy(DoublePredicate predicate)
    {
        return predicate.accept(this.value1);
    }

    @Override
    public boolean allSatisfy(DoublePredicate predicate)
    {
        return predicate.accept(this.value1);
    }

    @Override
    public boolean noneSatisfy(DoublePredicate predicate)
    {
        return !predicate.accept(this.value1);
    }

    @Override
    public ImmutableDoubleCollection select(DoublePredicate predicate)
    {
        return predicate.accept(this.value1) ? DoubleLists.immutable.with(this.value1) : DoubleLists.immutable.with();
    }

    @Override
    public ImmutableDoubleCollection reject(DoublePredicate predicate)
    {
        return predicate.accept(this.value1) ? DoubleLists.immutable.with() : DoubleLists.immutable.with(this.value1);
    }

    @Override
    public double detectIfNone(DoublePredicate predicate, double ifNone)
    {
        return predicate.accept(this.value1) ? this.value1 : ifNone;
    }

    @Override
    public <T> T injectInto(T injectedValue, ObjectDoubleToObjectFunction<? super T, ? extends T> function)
    {
        return function.valueOf(injectedValue, this.value1);
    }

    @Override
    public RichIterable<DoubleIterable> chunk(int size)
    {
        if (size <= 0)
        {
            throw new IllegalArgumentException("Size for groups must be positive but was: " + size);
        }
        return Lists.immutable.with(DoubleLists.immutable.with(this.value1));
    }

    @Override
    public <V> ImmutableCollection<V> collect(DoubleToObjectFunction<? extends V> function)
    {
        return Lists.immutable.of(function.valueOf(this.value1));
    }

    @Override
    public double sum()
    {
        return this.value1;
    }

    @Override
    public double min()
    {
        return this.value1;
    }

    @Override
    public double max()
    {
        return this.value1;
    }

    @Override
    public double maxIfEmpty(double defaultValue)
    {
        return this.value1;
    }

    @Override
    public double minIfEmpty(double defaultValue)
    {
        return this.value1;
    }

    @Override
    public double average()
    {
        return this.value1;
    }

    @Override
    public double median()
    {
        return this.value1;
    }

    @Override
    public double[] toSortedArray()
    {
        return new double[]{this.value1};
    }

    @Override
    public MutableDoubleList toSortedList()
    {
        return DoubleArrayList.newListWith(this.value1);
    }

    @Override
    public double[] toArray()
    {
        return new double[]{this.value1};
    }

    @Override
    public double[] toArray(double[] target)
    {
        if (target.length < 1)
        {
            target = new double[]{this.value1};
        }
        else
        {
            target[0] = this.value1;
        }
        return target;
    }

    @Override
    public boolean contains(double value)
    {
        return Double.compare(this.value1, value) == 0;
    }

    @Override
    public boolean containsAll(double... source)
    {
        for (double value : source)
        {
            if (Double.compare(this.value1, value) != 0)
            {
                return false;
            }
        }
        return true;
    }

    @Override
    public boolean containsAll(DoubleIterable source)
    {
        for (DoubleIterator iterator = source.doubleIterator(); iterator.hasNext(); )
        {
            if (Double.compare(this.value1, iterator.next()) != 0)
            {
                return false;
            }
        }
        return true;
    }

    @Override
    public MutableDoubleList toList()
    {
        return DoubleArrayList.newListWith(this.value1);
    }

    @Override
    public MutableDoubleSet toSet()
    {
        return DoubleHashSet.newSetWith(this.value1);
    }

    @Override
    public MutableDoubleBag toBag()
    {
        return DoubleHashBag.newBagWith(this.value1);
    }

    @Override
    public LazyDoubleIterable asLazy()
    {
        return new LazyDoubleIterableAdapter(this);
    }

    @Override
    public ImmutableObjectDoubleMap<K> newWithKeyValue(K key, double value)
    {
        return ObjectDoubleMaps.immutable.withAll(ObjectDoubleHashMap.newWithKeysValues(this.key1, this.value1, key, value));
    }

    @Override
    public ImmutableObjectDoubleMap<K> newWithoutKey(K key)
    {
        return nullSafeEquals(this.key1, key) ? (ImmutableObjectDoubleMap<K>) ImmutableObjectDoubleEmptyMap.INSTANCE : this;
    }

    private static boolean nullSafeEquals(Object value, Object other)
    {
        if (value == null)
        {
            if (other == null)
            {
                return true;
            }
        }
        else if (other == value || value.equals(other))
        {
            return true;
        }
        return false;
    }

    @Override
    public ImmutableObjectDoubleMap<K> newWithoutAllKeys(Iterable<? extends K> keys)
    {
        ObjectDoubleHashMap<K> map = new ObjectDoubleHashMap<K>(this);
        for (K key : keys)
        {
            map.removeKey(key);
        }
        return map.toImmutable();
    }

    @Override
    public double get(Object key)
    {
        return this.getIfAbsent(key, EMPTY_VALUE);
    }

    @Override
    public double getOrThrow(Object key)
    {
        if (nullSafeEquals(this.key1, key))
        {
            return this.value1;
        }
        throw new IllegalStateException("Key " + key + " not present.");
    }

    @Override
    public double getIfAbsent(Object key, double ifAbsent)
    {
        return nullSafeEquals(this.key1, key) ? this.value1 : ifAbsent;
    }

    @Override
    public boolean containsKey(Object key)
    {
        return nullSafeEquals(this.key1, key);
    }

    @Override
    public boolean containsValue(double value)
    {
        return Double.compare(this.value1, value) == 0;
    }

    @Override
    public void forEachValue(DoubleProcedure procedure)
    {
        procedure.value(this.value1);
    }

    @Override
    public void forEachKey(Procedure<? super K> procedure)
    {
        procedure.value(this.key1);
    }

    @Override
    public void forEachKeyValue(ObjectDoubleProcedure<? super K> objectDoubleProcedure)
    {
        objectDoubleProcedure.value(this.key1, this.value1);
    }

    @Override
    public ImmutableObjectDoubleMap<K> select(ObjectDoublePredicate<? super K> objectDoublePredicate)
    {
        return objectDoublePredicate.accept(this.key1, this.value1) ? ObjectDoubleHashMap.newWithKeysValues(this.key1, this.value1).toImmutable()
                : (ImmutableObjectDoubleMap<K>) ImmutableObjectDoubleEmptyMap.INSTANCE;
    }

    @Override
    public ImmutableObjectDoubleMap<K> reject(ObjectDoublePredicate<? super K> objectDoublePredicate)
    {
        return objectDoublePredicate.accept(this.key1, this.value1) ? (ImmutableObjectDoubleMap<K>) ImmutableObjectDoubleEmptyMap.INSTANCE
                : ObjectDoubleHashMap.newWithKeysValues(this.key1, this.value1).toImmutable();
    }

    @Override
    public ImmutableObjectDoubleMap<K> toImmutable()
    {
        return this;
    }

    @Override
    public int size()
    {
        return 1;
    }

    @Override
    public boolean isEmpty()
    {
        return false;
    }

    @Override
    public boolean notEmpty()
    {
        return true;
    }

    @Override
    public Set<K> keySet()
    {
        return Sets.immutable.of(this.key1).castToSet();
    }

    @Override
    public MutableDoubleCollection values()
    {
        return UnmodifiableDoubleCollection.of(DoubleArrayList.newListWith(this.value1));
    }

    @Override
    public LazyIterable<K> keysView()
    {
        return Lists.immutable.of(this.key1).asLazy();
    }

    @Override
    public RichIterable<ObjectDoublePair<K>> keyValuesView()
    {
        return Lists.immutable.of(PrimitiveTuples.pair(this.key1, this.value1)).asLazy();
    }

    @Override
    public ImmutableDoubleObjectMap<K> flipUniqueValues()
    {
        return DoubleObjectMaps.immutable.with(this.value1, this.key1);
    }

    @Override
    public boolean equals(Object obj)
    {
        if (obj == this)
        {
            return true;
        }
        if (!(obj instanceof ObjectDoubleMap))
        {
            return false;
        }
        ObjectDoubleMap<K> map = (ObjectDoubleMap<K>) obj;
        if (map.size() != 1)
        {
            return false;
        }
        return map.containsKey(this.key1) && Double.compare(this.value1, map.getOrThrow(this.key1)) == 0;
    }

    @Override
    public int hashCode()
    {
        return (this.key1 == null ? 0 : this.key1.hashCode()) ^ (int) (Double.doubleToLongBits(this.value1) ^ Double.doubleToLongBits(this.value1) >>> 32);
    }

    @Override
    public String toString()
    {
        return "{" + this.key1 + "=" + this.value1 + "}";
    }

    @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);
            appendable.append(String.valueOf(this.value1));
            appendable.append(end);
        }
        catch (IOException e)
        {
            throw new RuntimeException(e);
        }
    }

    private Object writeReplace()
    {
        return new ImmutableObjectDoubleMapSerializationProxy<K>(this);
    }
}