//
// Author: Yves Lafon <ylafon@w3.org>
//
// (c) COPYRIGHT MIT, ERCIM, Keio, Beihang University, 2017.
// Please first read the full copyright statement in file COPYRIGHT.html
package org.w3c.css.properties.css3;

import org.w3c.css.util.ApplContext;
import org.w3c.css.util.InvalidParamException;
import org.w3c.css.values.CssExpression;
import org.w3c.css.values.CssIdent;
import org.w3c.css.values.CssTypes;
import org.w3c.css.values.CssValue;

/**
 * @spec https://www.w3.org/TR/2020/WD-css-lists-3-20201117/#propdef-list-style-position
 */
public class CssListStylePosition extends org.w3c.css.properties.css.CssListStylePosition {

    public static final CssIdent[] allowed_values;

    static {
        String[] _allowed_values = {"inside", "outside"};
        int i = 0;
        allowed_values = new CssIdent[_allowed_values.length];
        for (String s : _allowed_values) {
            allowed_values[i++] = CssIdent.getIdent(s);
        }
    }

    public static final CssIdent getAllowedIdent(CssIdent ident) {
        for (CssIdent id : allowed_values) {
            if (id.equals(ident)) {
                return id;
            }
        }
        return null;
    }

    /**
     * Create a new CssListStylePosition
     */
    public CssListStylePosition() {
        value = initial;
    }


    /**
     * Set the value of the property<br/>
     * Does not check the number of values
     *
     * @param expression The expression for this property
     * @throws org.w3c.css.util.InvalidParamException The expression is incorrect
     */
    public CssListStylePosition(ApplContext ac, CssExpression expression)
            throws InvalidParamException {
        this(ac, expression, false);
    }

    /**
     * Set the value of the property
     *
     * @param expression The expression for this property
     * @param check      set it to true to check the number of values
     * @throws org.w3c.css.util.InvalidParamException The expression is incorrect
     */
    public CssListStylePosition(ApplContext ac, CssExpression expression,
                                boolean check) throws InvalidParamException {
        if (check && expression.getCount() > 1) {
            throw new InvalidParamException("unrecognize", ac);
        }
        setByUser();

        CssValue val;

        val = expression.getValue();

        if (val.getType() != CssTypes.CSS_IDENT) {
            throw new InvalidParamException("value", val,
                    getPropertyName(), ac);
        }
        CssIdent id = val.getIdent();
        if (!CssIdent.isCssWide(id) && getAllowedIdent(id) == null) {
            throw new InvalidParamException("value",
                    val.toString(),
                    getPropertyName(), ac);
        }
        value = val;
        expression.next();
    }
}