/*   Copyright 2004 The Apache Software Foundation
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.apache.xmlbeans.impl.values;

import org.apache.xmlbeans.SchemaType;
import org.apache.xmlbeans.SimpleValue;
import org.apache.xmlbeans.XmlErrorCodes;
import org.apache.xmlbeans.XmlObject;
import org.apache.xmlbeans.impl.common.QNameHelper;
import org.apache.xmlbeans.impl.common.ValidationContext;

public class JavaUriHolderEx extends JavaUriHolder {
    private final SchemaType _schemaType;

    public SchemaType schemaType() {
        return _schemaType;
    }

    public JavaUriHolderEx(SchemaType type, boolean complex) {
        _schemaType = type;
        initComplexType(complex, false);
    }

    protected int get_wscanon_rule() {
        return schemaType().getWhiteSpaceRule();
    }

    protected void set_text(String s) {
        if (_validateOnSet()) {
            if (!check(s, _schemaType)) {
                throw new XmlValueOutOfRangeException();
            }

            if (!_schemaType.matchPatternFacet(s)) {
                throw new XmlValueOutOfRangeException();
            }
        }

        super.set_text(s);
    }

//    // setters
//    protected void set_uri(URI uri)
//    {
//        if (!check(uri.toString(), _schemaType))
//            throw new XmlValueOutOfRangeException();
//
//        super.set_uri(uri);
//    }

    public static void validateLexical(String v, SchemaType sType, ValidationContext context) {
        XmlAnyUriImpl.validateLexical(v, context);

        XmlObject[] vals = sType.getEnumerationValues();

        if (vals != null) {
            int i;

            for (i = 0; i < vals.length; i++) {
                String e = ((SimpleValue) vals[i]).getStringValue();

                if (e.equals(v)) {
                    break;
                }
            }

            if (i >= vals.length) {
                context.invalid(XmlErrorCodes.DATATYPE_ENUM_VALID,
                    new Object[]{"anyURI", v, QNameHelper.readable(sType)});
            }
        }

        // check pattern
        if (sType.hasPatternFacet()) {
            if (!sType.matchPatternFacet(v)) {
                // TODO - describe string and pattern here in error
                context.invalid(XmlErrorCodes.DATATYPE_VALID$PATTERN_VALID,
                    new Object[]{"anyURI", v, QNameHelper.readable(sType)});
            }
        }

        XmlObject x;
        int i;

        // xsd length facets count characters (code points), not Java UTF-16
        // code units, so a supplementary character counts as one
        int cch = v.codePointCount(0, v.length());

        if ((x = sType.getFacet(SchemaType.FACET_LENGTH)) != null) {
            if ((i = ((SimpleValue) x).getBigIntegerValue().intValue()) != cch) {
                context.invalid(XmlErrorCodes.DATATYPE_LENGTH_VALID$STRING,
                    new Object[]{"anyURI", v, i, QNameHelper.readable(sType)});
            }
        }

        if ((x = sType.getFacet(SchemaType.FACET_MIN_LENGTH)) != null) {
            if ((i = ((SimpleValue) x).getBigIntegerValue().intValue()) > cch) {
                context.invalid(XmlErrorCodes.DATATYPE_MIN_LENGTH_VALID$STRING,
                    new Object[]{"anyURI", v, i, QNameHelper.readable(sType)});
            }
        }

        if ((x = sType.getFacet(SchemaType.FACET_MAX_LENGTH)) != null) {
            if ((i = ((SimpleValue) x).getBigIntegerValue().intValue()) < cch) {
                context.invalid(XmlErrorCodes.DATATYPE_MAX_LENGTH_VALID$STRING,
                    new Object[]{"anyURI", v, i, QNameHelper.readable(sType)});
            }
        }
    }

    private static boolean check(String v, SchemaType sType) {
        int length = v == null ? 0 : v.length();
        // check against length
        XmlObject len = sType.getFacet(SchemaType.FACET_LENGTH);
        if (len != null) {
            int m = ((SimpleValue) len).getBigIntegerValue().intValue();
            if (length != m) {
                return false;
            }
        }

        // check against min length
        XmlObject min = sType.getFacet(SchemaType.FACET_MIN_LENGTH);
        if (min != null) {
            int m = ((SimpleValue) min).getBigIntegerValue().intValue();
            if (length < m) {
                return false;
            }
        }

        // check against min length
        XmlObject max = sType.getFacet(SchemaType.FACET_MAX_LENGTH);
        if (max != null) {
            int m = ((SimpleValue) max).getBigIntegerValue().intValue();
            if (length > m) {
                return false;
            }
        }

        return true;
    }

    protected void validate_simpleval(String lexical, ValidationContext ctx) {
        validateLexical(getStringValue(), schemaType(), ctx);
    }
}
