//
// Author: Yves Lafon <ylafon@w3.org>
//
// (c) COPYRIGHT MIT, ERCIM, Keio, Beihang, 2018.
// 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/2021/WD-css-ruby-1-20210310/#propdef-ruby-merge
 */
public class CssRubyMerge extends org.w3c.css.properties.css.CssRubyMerge {

    public static final CssIdent[] allowed_values;

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

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

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

    /**
     * Create new CssRubyMerge
     *
     * @param expression The expression for this property
     * @throws org.w3c.css.util.InvalidParamException Values are incorrect
     */
    public CssRubyMerge(ApplContext ac, CssExpression expression,
                        boolean check) throws InvalidParamException {
        setByUser();
        CssValue val = expression.getValue();

        if (check && expression.getCount() > 1) {
            throw new InvalidParamException("unrecognize", ac);
        }

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


    public CssRubyMerge(ApplContext ac, CssExpression expression)
            throws InvalidParamException {
        this(ac, expression, false);
    }

}