/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.shardingsphere.core.rewrite.placeholder;

import com.google.common.base.Strings;
import lombok.Getter;

/**
 * Encrypt update item column placeholder for rewrite.
 *
 * @author panjuan
 */
@Getter
public final class EncryptUpdateItemColumnPlaceholder implements ShardingPlaceholder {
    
    private final String logicTableName;
    
    private final String columnName;
    
    private final Comparable<?> columnValue;
    
    private final String assistedColumnName;
    
    private final Comparable<?> assistedColumnValue;
    
    private final int placeholderIndex;
    
    public EncryptUpdateItemColumnPlaceholder(final String logicTableName, final String columnName) {
        this.logicTableName = logicTableName;
        this.columnName = columnName;
        columnValue = null;
        this.assistedColumnName = null;
        assistedColumnValue = null;
        placeholderIndex = -1;
    }
    
    public EncryptUpdateItemColumnPlaceholder(final String logicTableName, final String columnName, final Comparable<?> columnValue) {
        this.logicTableName = logicTableName;
        this.columnName = columnName;
        this.columnValue = columnValue;
        this.assistedColumnName = null;
        this.assistedColumnValue = null;
        placeholderIndex = 0;
    }
    
    public EncryptUpdateItemColumnPlaceholder(final String logicTableName, final String columnName, final String assistedColumnName) {
        this.logicTableName = logicTableName;
        this.columnName = columnName;
        columnValue = null;
        this.assistedColumnName = assistedColumnName;
        assistedColumnValue = null;
        placeholderIndex = -1;
    }
    
    public EncryptUpdateItemColumnPlaceholder(final String logicTableName, final String columnName,
                                              final Comparable<?> columnValue, final String assistedColumnName, final Comparable<?> assistedColumnValue) {
        this.logicTableName = logicTableName;
        this.columnName = columnName;
        this.columnValue = columnValue;
        this.assistedColumnName = assistedColumnName;
        this.assistedColumnValue = assistedColumnValue;
        placeholderIndex = 0;
    }
    
    @Override
    public String toString() {
        if (Strings.isNullOrEmpty(assistedColumnName)) {
            return -1 == placeholderIndex ? String.format("%s = ?", columnName) : String.format("%s = '%s'", columnName, columnValue);
        }
        return -1 == placeholderIndex 
                ? String.format("%s = ?, %s = ?", columnName, assistedColumnName) : String.format("%s = '%s', %s = '%s'", columnName, columnValue, assistedColumnName, assistedColumnValue);
    }
}

@@ -1704,34 +1704,33 @@
 ceholderIndex = 
--1
+0
 ;%0A    %7D%0A    %0A   
@@ -2085,33 +2085,33 @@
 ceholderIndex = 
-0
+1
 ;%0A    %7D%0A    %0A   
@@ -2471,18 +2471,17 @@
 Index = 
--1
+0
 ;%0A    %7D%0A
@@ -2993,33 +2993,34 @@
 ceholderIndex = 
-0
+-1
 ;%0A    %7D%0A    %0A   
@@ -3132,33 +3132,33 @@
       return -1 
-=
+!
 = placeholderInd
@@ -3281,17 +3281,17 @@
 turn -1 
-=
+!
 = placeh

change placeholderIndex value