package jcgp.function;

import jcgp.Parameters;
import jcgp.exceptions.InvalidArgumentsException;
import jcgp.population.Connection;

public class BooleanLogic {

	public static class And extends Function {	
		private int arity = 2;

		@Override
		public Boolean run(Connection... connections) {
			if (connections.length < arity) {
				throw new InvalidArgumentsException("Not enough connections were given.");
			} else {
				Boolean arg1 = ((Boolean) connections[0].getValue());
				Boolean arg2 = ((Boolean) connections[1].getValue());
				Boolean result = arg1 && arg2;
				if (Parameters.getDebug()) {
					System.out.println(arg1 + " AND " + arg2 + " = " + result);
				}
				return result;
			}
		}

		@Override
		public int getArity() {
			return arity;
		}
	}
	
	public static class Or extends Function {	
		private int arity = 2;

		@Override
		public Boolean run(Connection... connections) {
			if (connections.length < arity) {
				throw new InvalidArgumentsException("Not enough connections were given.");
			} else {
				Boolean arg1 = ((Boolean) connections[0].getValue());
				Boolean arg2 = ((Boolean) connections[1].getValue());
				Boolean result = arg1 || arg2;
				if (Parameters.getDebug()) {
					System.out.println(arg1 + " OR " + arg2 + " = " + result);
				}
				return result;
			}
		}

		@Override
		public int getArity() {
			return arity;
		}
	}

	public static class Not extends Function {	
		private int arity = 1;

		@Override
		public Boolean run(Connection... connections) {
			if (connections.length < arity) {
				throw new InvalidArgumentsException("Not enough connections were given.");
			} else {
				Boolean arg1 = ((Boolean) connections[0].getValue());
				Boolean result = !arg1;
				if (Parameters.getDebug()) {
					System.out.println("NOT " + arg1 + " = " + result);
				}
				return result;
			}
		}

		@Override
		public int getArity() {
			return arity;
		}
	}

	public static class Xor extends Function {	
		private int arity = 2;

		@Override
		public Boolean run(Connection... connections) {
			if (connections.length < arity) {
				throw new InvalidArgumentsException("Not enough connections were given.");
			} else {
				Boolean arg1 = ((Boolean) connections[0].getValue());
				Boolean arg2 = ((Boolean) connections[1].getValue());
				Boolean result = arg1 ^ arg2;
				if (Parameters.getDebug()) {
					System.out.println(arg1 + " XOR " + arg2 + " = " + result);
				}
				return result;
			}
		}

		@Override
		public int getArity() {
			return arity;
		}
	}

	public static class Nand extends Function {	
		private int arity = 2;

		@Override
		public Boolean run(Connection... connections) {
			if (connections.length < arity) {
				throw new InvalidArgumentsException("Not enough connections were given.");
			} else {
				Boolean arg1 = ((Boolean) connections[0].getValue());
				Boolean arg2 = ((Boolean) connections[1].getValue());
				Boolean result = arg1 && arg2;
				if (Parameters.getDebug()) {
					System.out.println(arg1 + " NAND " + arg2 + " = " + !result);
				}
				return !result;
			}
		}

		@Override
		public int getArity() {
			return arity;
		}
	}

	public static class Nor extends Function {	
		private int arity = 2;

		@Override
		public Boolean run(Connection... connections) {
			if (connections.length < arity) {
				throw new InvalidArgumentsException("Not enough connections were given.");
			} else {
				Boolean arg1 = ((Boolean) connections[0].getValue());
				Boolean arg2 = ((Boolean) connections[1].getValue());
				Boolean result = arg1 || arg2;
				if (Parameters.getDebug()) {
					System.out.println(arg1 + " NOR " + arg2 + " = " + !result);
				}
				return !result;
			}
		}

		@Override
		public int getArity() {
			return arity;
		}
	}

	public static class Xnor extends Function {	
		private int arity = 2;

		@Override
		public Boolean run(Connection... connections) {
			if (connections.length < arity) {
				throw new InvalidArgumentsException("Not enough connections were given.");
			} else {
				Boolean arg1 = ((Boolean) connections[0].getValue());
				Boolean arg2 = ((Boolean) connections[1].getValue());
				Boolean result = arg1 ^ arg2;
				if (Parameters.getDebug()) {
					System.out.println(arg1 + " XNOR " + arg2 + " = " + !result);
				}
				return !result;
			}
		}

		@Override
		public int getArity() {
			return arity;
		}
	}

	
	
}