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package info.bliki.wiki.template.expr.ast;

/**
 * A node for a parsed integer string
 *
 */
public class IntegerNode extends NumberNode {
    public final static IntegerNode C1 = new IntegerNode("1", 10);

    private final int fNumberFormat;

    private final int fIntValue;

    public IntegerNode(final String value) {
        this(value, 10);
    }

    public IntegerNode(final String value, final int numberFormat) {
        super(value);
        fNumberFormat = numberFormat;
        fIntValue = 0;
    }

    public IntegerNode(final int intValue) {
        super(null);
        fNumberFormat = 10;
        fIntValue = intValue;
    }

    @Override
    public String toString() {
        if (fStringValue == null) {
            if (sign) {
                return Integer.toString(fIntValue * (-1));
            }
            return Integer.toString(fIntValue);
        }
        if (sign) {
            return "-" + fStringValue;
        }
        return fStringValue;
    }

    public int getNumberFormat() {
        return fNumberFormat;
    }

    public int getIntValue() {
        return fIntValue;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof IntegerNode) {
            if (fStringValue == null) {
                return toString().equals(obj.toString());
            }
            return fStringValue.equals(((NumberNode) obj).fStringValue) && sign == ((NumberNode) obj).sign;
        }
        return false;
    }

    @Override
    public int hashCode() {
        if (fStringValue == null) {
            return toString().hashCode();
        }
        return super.hashCode();
    }
}