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package io.polaris.core.map;

import java.lang.ref.Reference;
import java.util.AbstractMap;
import java.util.EnumMap;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.TreeMap;
import java.util.function.Supplier;

import io.polaris.core.map.reference.ReferenceType;
import io.polaris.core.map.reference.ValueReference;
import io.polaris.core.reflect.Reflects;

/**
 * @author Qt
 * @since 1.8
 */
public class Maps {


	/**
	 * 创建指定类型的Map
	 *
	 * @param mapType
	 * @param 
	 * @param 
	 * @return
	 */
	public static  Map createMap(Class mapType) {
		if (null == mapType || mapType.isAssignableFrom(AbstractMap.class)) {
			return new HashMap<>();
		} else {
			try {
				return (Map) Reflects.newInstance(mapType);
			} catch (ReflectiveOperationException e) {
				return new HashMap<>();
			}
		}
	}

	/**
	 * 反转键值生成新的Map对象
	 *
	 * @param map
	 * @param 
	 * @param 
	 * @return
	 */
	public static  Map inverse(Map map) {
		Map result = createMap(map.getClass());
		map.forEach((key, value) -> result.put(value, key));
		return result;
	}


	public static  FluentMap newFluentMap(Map map) {
		return new FluentMap(map);
	}

	public static  Map newLimitCapacityMap(int maxCapacity) {
		return new LimitedLinkedHashMap(maxCapacity);
	}

	public static  Map newLimitCapacityMap(int maxCapacity, boolean accessOrder) {
		return new LimitedLinkedHashMap(maxCapacity, accessOrder);
	}

	public static , V> EnumMap newEnumMap(Class type) {
		return new EnumMap(type);
	}

	public static  LinkedHashMap newLinkedHashMap() {
		return new LinkedHashMap();
	}

	public static  HashMap newHashMap() {
		return new HashMap();
	}

	public static , V> TreeMap newTreeMap() {
		return new TreeMap();
	}

	public static  Map newLowerCaseHashMap() {
		return new CaseInsensitiveMap<>(new HashMap<>(), false);
	}

	public static  Map newUpperCaseHashMap() {
		return new CaseInsensitiveMap<>(new HashMap<>(), true);
	}

	public static  Map newLowerCaseLinkedHashMap() {
		return new CaseInsensitiveMap<>(new LinkedHashMap<>(), false);
	}

	public static  Map newUpperCaseLinkedHashMap() {
		return new CaseInsensitiveMap<>(new LinkedHashMap<>(), true);
	}

	public static  Map newSoftHashMap() {
		return new SoftHashMap<>();
	}

	public static  Map newWeakHashMap() {
		return new WeakHashMap<>();
	}

	public static  Map newSoftKeyHashMap() {
		return new SoftKeyHashMap<>();
	}

	public static  Map newWeakKeyHashMap() {
		return new WeakKeyHashMap<>();
	}

	public static  Map newSoftValueHashMap() {
		return new SoftValueHashMap<>();
	}

	public static  Map newWeakValueHashMap() {
		return new WeakValueHashMap<>();
	}

	public static  Map newSoftMap(Supplier, ValueReference, V>>> raw) {
		return new ReferenceMap<>(raw, ReferenceType.SOFT);
	}

	public static  Map newWeakMap(Supplier, ValueReference, V>>> raw) {
		return new ReferenceMap<>(raw, ReferenceType.WEAK);
	}

	public static  Map newSoftKeyMap(Supplier, V>> raw) {
		return new KeyReferenceMap<>(raw, ReferenceType.SOFT);
	}

	public static  Map newWeakKeyMap(Supplier, V>> raw) {
		return new KeyReferenceMap<>(raw, ReferenceType.WEAK);
	}

	public static  Map newSoftValueMap(Supplier>> raw) {
		return new ValueReferenceMap<>(raw, ReferenceType.SOFT);
	}

	public static  Map newWeakValueMap(Supplier>> raw) {
		return new ValueReferenceMap<>(raw, ReferenceType.WEAK);
	}

	public static  Map newSoftMap(Map, ValueReference, V>> raw) {
		return new ReferenceMap<>(raw, ReferenceType.SOFT);
	}

	public static  Map newWeakMap(Map, ValueReference, V>> raw) {
		return new ReferenceMap<>(raw, ReferenceType.WEAK);
	}

	public static  Map newSoftKeyMap(Map, V> raw) {
		return new KeyReferenceMap<>(raw, ReferenceType.SOFT);
	}

	public static  Map newWeakKeyMap(Map, V> raw) {
		return new KeyReferenceMap<>(raw, ReferenceType.WEAK);
	}

	public static  Map newSoftValueMap(Map> raw) {
		return new ValueReferenceMap<>(raw, ReferenceType.SOFT);
	}

	public static  Map newWeakValueMap(Map> raw) {
		return new ValueReferenceMap<>(raw, ReferenceType.WEAK);
	}
}