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/*
 * Copyright (c) 2013, SRI International
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 * Licensed under the The BSD 3-Clause License;
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 * 
 * http://opensource.org/licenses/BSD-3-Clause
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package com.sri.ai.grinder.sgdpllt.library.boole;

import static com.sri.ai.util.Util.map;

import java.util.Map;

import com.google.common.annotations.Beta;
import com.sri.ai.grinder.sgdpllt.library.Disequality;
import com.sri.ai.grinder.sgdpllt.library.Equality;
import com.sri.ai.grinder.sgdpllt.library.FunctorConstants;
import com.sri.ai.grinder.sgdpllt.library.controlflow.IfThenElse;
import com.sri.ai.grinder.sgdpllt.rewriter.api.Rewriter;
import com.sri.ai.grinder.sgdpllt.rewriter.api.Simplifier;
import com.sri.ai.grinder.sgdpllt.rewriter.core.Switch;

/**
 * A {@link Rewriter} with commonly boolean connectives plus conditionals:
 * 
 * 
 *  boolean connectives (and, or, not, <=>, =>)
 * 
 if then else
 * 
 * 
 * @author braz
 *
 */
@Beta
public class BooleanSimplifier extends Switch {
	
	public BooleanSimplifier() {
		super(Switch.FUNCTOR, makeFunctionApplicationSimplifiers());
	}
	
	public static Map makeFunctionApplicationSimplifiers() {
		return map(
				FunctorConstants.AND,             (Simplifier) (f, context) ->
				And.simplify(f),

				FunctorConstants.OR,              (Simplifier) (f, context) ->
				Or.simplify(f),

				FunctorConstants.NOT,             (Simplifier) (f, context) ->
				Not.simplify(f),

				FunctorConstants.IF_THEN_ELSE,    (Simplifier) (f, context) ->
				IfThenElse.simplify(f),

				FunctorConstants.EQUIVALENCE,     (Simplifier) (f, context) ->
				Equivalence.simplify(f),

				FunctorConstants.IMPLICATION,     (Simplifier) (f, context) ->
				Implication.simplify(f),

				FunctorConstants.EQUALITY,        (Simplifier) (f, context) ->
				Equality.simplify(f, context),

				FunctorConstants.DISEQUALITY,     (Simplifier) (f, context) ->
				Disequality.simplify(f, context)
				);
	}

	public static Map makeSyntacticFormTypeSimplifiers() {
		return map();
	}
}