/*
 * Copyright (C) 2007 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <kjs/wk_config.h>
#include "JSDatabase.h"

#include "Database.h"
#include "Document.h"
#include "DOMWindow.h"
#include "ExceptionCode.h"
#include "kjs_window.h"
#include "JSCustomSQLCallback.h"
#include "JSCustomVersionChangeCallback.h"
#include "PlatformString.h"
#include "SQLValue.h"
#include <kjs/array_instance.h>

namespace WebCore {

using namespace KJS;

JSValue* JSDatabase::executeSql(ExecState* exec, const List& args)
{
    String sqlStatement = args[0]->toString(exec);

    // Now assemble the list of SQL arguments
    Vector<SQLValue> SQLValues;

    if (!args[1]->isObject() ||
        !static_cast<JSObject*>(args[1])->inherits(&ArrayInstance::info)) {
        setDOMException(exec, TYPE_MISMATCH_ERR);
        return jsUndefined();
    }
    
    ArrayInstance* array = static_cast<ArrayInstance*>(args[1]);
    
    for (unsigned i = 0 ; i < array->getLength(); i++) {
        JSValue* value = array->getItem(i);

        if (value->isNull()) {
            SQLValues.append(SQLValue());
        } else if (value->isNumber()) {
            SQLValues.append(value->getNumber());
        } else {
            // Convert the argument to a string and append it
            SQLValues.append(value->toString(exec));
        }
    }

    JSObject* callback = args[2]->getObject();
    if (!callback) {
        setDOMException(exec, TYPE_MISMATCH_ERR);
        return jsUndefined();
    }

    if (Frame* frame = m_impl->document()->frame()) {
        ExceptionCode ec = 0;
        RefPtr<SQLCallback> sqlCallback(new JSCustomSQLCallback(callback, frame));
        m_impl->executeSql(sqlStatement, SQLValues, sqlCallback, ec);
        setDOMException(exec, ec);
    }

    return jsUndefined();
}

JSValue* JSDatabase::changeVersion(ExecState* exec, const List& args)
{
    String oldVersion = args[0]->toString(exec);
    String newVersion = args[1]->toString(exec);

    JSObject* callback = args[2]->getObject();
    if (!callback) {
        setDOMException(exec, TYPE_MISMATCH_ERR);
        return jsUndefined();
    }

    if (Frame* frame = m_impl->document()->frame()) {
        RefPtr<VersionChangeCallback> changeCallback(new JSCustomVersionChangeCallback(callback, frame));
        m_impl->changeVersion(oldVersion, newVersion, changeCallback.release());
    }

    return jsUndefined();
}

}
