//
// Author: Yves Lafon <ylafon@w3.org>
//
// (c) COPYRIGHT MIT, ERCIM, Keio University, Beihang, 2012.
// 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;
import org.w3c.css.values.CssValueList;

import java.util.ArrayList;

import static org.w3c.css.values.CssOperator.SPACE;

/**
 * @spec https://www.w3.org/TR/2024/WD-css-text-4-20240219/#text-justify-property
 */
public class CssTextJustify extends org.w3c.css.properties.css.CssTextJustify {

    private static CssIdent[] allowed_values;
    private static CssIdent no_compress, distribute;

    static {
        no_compress = CssIdent.getIdent("no-compress");
        distribute = CssIdent.getIdent("distribute");
        String id_values[] = {"auto", "none", "inter-word", "inter-character", "ruby", "distribute"};
        allowed_values = new CssIdent[id_values.length];
        int i = 0;
        for (String s : id_values) {
            allowed_values[i++] = CssIdent.getIdent(s);
        }
    }

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

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

    /**
     * Creates a new CssTextJustify
     *
     * @param expression The expression for this property
     * @throws org.w3c.css.util.InvalidParamException Expressions are incorrect
     */
    public CssTextJustify(ApplContext ac, CssExpression expression, boolean check)
            throws InvalidParamException {
        ArrayList<CssValue> values = new ArrayList<CssValue>();
        CssValue val;
        CssExpression trimexp = null;
        CssIdent id;
        boolean got_no_compress = false;
        char op;

        setByUser();

        if (check && expression.getCount() > 2) {
            throw new InvalidParamException("unrecognize", ac);
        }

        while (!expression.end()) {
            val = expression.getValue();
            op = expression.getOperator();

            if (val.getType() != CssTypes.CSS_IDENT) {
                throw new InvalidParamException("value",
                        expression.getValue(),
                        getPropertyName(), ac);
            }
            id = val.getIdent();
            if (CssIdent.isCssWide(id)) {
                if (expression.getCount() > 1) {
                    throw new InvalidParamException("value",
                            expression.getValue(),
                            getPropertyName(), ac);
                }
                values.add(val);
            } else if (id.equals(no_compress)) {
                if (got_no_compress) {
                    throw new InvalidParamException("value",
                            expression.getValue(),
                            getPropertyName(), ac);
                }
                got_no_compress = true;
                values.add(val);
            } else if (getMatchingIdent(id) != null) {
                if (!got_no_compress && !values.isEmpty()) {
                    throw new InvalidParamException("value",
                            expression.getValue(),
                            getPropertyName(), ac);
                }
                values.add(val);
                if (distribute.equals(id)) {
                    ac.getFrame().addWarning("deprecated", distribute.toString());
                }
            } else {
                throw new InvalidParamException("value",
                        expression.getValue(),
                        getPropertyName(), ac);
            }
            if (op != SPACE) {
                throw new InvalidParamException("operator", op,
                        getPropertyName(), ac);
            }
            expression.next();
        }
        value = (values.size() == 1) ? values.get(0) : new CssValueList(values);
    }

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

}