/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */

#include <hsqldb/HTables.hxx>
#include <hsqldb/HViews.hxx>
#include <hsqldb/HTable.hxx>
#include <com/sun/star/sdbc/XRow.hpp>
#include <com/sun/star/sdbc/XResultSet.hpp>
#include <com/sun/star/sdbc/ColumnValue.hpp>
#include <com/sun/star/sdbcx/Privilege.hpp>
#include <com/sun/star/sdbc/KeyRule.hpp>
#include <com/sun/star/sdbcx/KeyType.hpp>
#include <hsqldb/HCatalog.hxx>
#include <connectivity/dbtools.hxx>
#include <connectivity/dbexception.hxx>
#include <cppuhelper/interfacecontainer.h>
#include <comphelper/types.hxx>
#include <TConnection.hxx>

using namespace ::comphelper;
using namespace connectivity;
using namespace ::cppu;
using namespace connectivity::hsqldb;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::sdbcx;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::lang;
using namespace dbtools;

sdbcx::ObjectType OTables::createObject(const OUString& _rName)
{
    OUString sCatalog,sSchema,sTable;
    ::dbtools::qualifiedNameComponents(m_xMetaData,_rName,sCatalog,sSchema,sTable,::dbtools::EComposeRule::InDataManipulation);

    Sequence< OUString > sTableTypes(3);
    sTableTypes[0] = "VIEW";
    sTableTypes[1] = "TABLE";
    sTableTypes[2] = "%";    // just to be sure to include anything else ....

    Any aCatalog;
    if ( !sCatalog.isEmpty() )
        aCatalog <<= sCatalog;
    Reference< XResultSet > xResult = m_xMetaData->getTables(aCatalog,sSchema,sTable,sTableTypes);

    sdbcx::ObjectType xRet;
    if ( xResult.is() )
    {
        Reference< XRow > xRow(xResult,UNO_QUERY);
        if ( xResult->next() ) // there can be only one table with this name
        {
            sal_Int32 nPrivileges = ::dbtools::getTablePrivileges( m_xMetaData, sCatalog, sSchema, sTable );
            if ( m_xMetaData->isReadOnly() )
                nPrivileges &= ~( Privilege::INSERT | Privilege::UPDATE | Privilege::DELETE | Privilege::CREATE | Privilege::ALTER | Privilege::DROP );

            // obtain privileges
            OHSQLTable* pRet = new OHSQLTable( this
                                                ,static_cast<OHCatalog&>(m_rParent).getConnection()
                                                ,sTable
                                                ,xRow->getString(4)
                                                ,xRow->getString(5)
                                                ,sSchema
                                                ,sCatalog
                                                ,nPrivileges);
            xRet = pRet;
        }
        ::comphelper::disposeComponent(xResult);
    }

    return xRet;
}

void OTables::impl_refresh(  )
{
    static_cast<OHCatalog&>(m_rParent).refreshTables();
}

void OTables::disposing()
{
    m_xMetaData.clear();
    OCollection::disposing();
}

Reference< XPropertySet > OTables::createDescriptor()
{
    return new OHSQLTable(this,static_cast<OHCatalog&>(m_rParent).getConnection());
}

// XAppend
sdbcx::ObjectType OTables::appendObject( const OUString& _rForName, const Reference< XPropertySet >& descriptor )
{
    createTable(descriptor);
    return createObject( _rForName );
}

// XDrop
void OTables::dropObject(sal_Int32 _nPos,const OUString& _sElementName)
{
    Reference< XInterface > xObject( getObject( _nPos ) );
    bool bIsNew = connectivity::sdbcx::ODescriptor::isNew( xObject );
    if (!bIsNew)
    {
        Reference< XConnection > xConnection = static_cast<OHCatalog&>(m_rParent).getConnection();


        OUString sCatalog,sSchema,sTable;
        ::dbtools::qualifiedNameComponents(m_xMetaData,_sElementName,sCatalog,sSchema,sTable,::dbtools::EComposeRule::InDataManipulation);

        OUString aSql(  "DROP " );

        Reference<XPropertySet> xProp(xObject,UNO_QUERY);
        bool bIsView;
        if((bIsView = (xProp.is() && ::comphelper::getString(xProp->getPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_TYPE))) == "VIEW"))) // here we have a view
            aSql += "VIEW ";
        else
            aSql += "TABLE ";

        OUString sComposedName(
            ::dbtools::composeTableName( m_xMetaData, sCatalog, sSchema, sTable, true, ::dbtools::EComposeRule::InDataManipulation ) );
        aSql += sComposedName;
        Reference< XStatement > xStmt = xConnection->createStatement(  );
        if ( xStmt.is() )
        {
            xStmt->execute(aSql);
            ::comphelper::disposeComponent(xStmt);
        }
        // if no exception was thrown we must delete it from the views
        if ( bIsView )
        {
            HViews* pViews = static_cast<HViews*>(static_cast<OHCatalog&>(m_rParent).getPrivateViews());
            if ( pViews && pViews->hasByName(_sElementName) )
                pViews->dropByNameImpl(_sElementName);
        }
    }
}

void OTables::createTable( const Reference< XPropertySet >& descriptor )
{
    Reference< XConnection > xConnection = static_cast<OHCatalog&>(m_rParent).getConnection();
    OUString aSql = ::dbtools::createSqlCreateTableStatement(descriptor,xConnection);

    Reference< XStatement > xStmt = xConnection->createStatement(  );
    if ( xStmt.is() )
    {
        xStmt->execute(aSql);
        ::comphelper::disposeComponent(xStmt);
    }
}

void OTables::appendNew(const OUString& _rsNewTable)
{
    insertElement(_rsNewTable,nullptr);

    // notify our container listeners
    ContainerEvent aEvent(static_cast<XContainer*>(this), makeAny(_rsNewTable), Any(), Any());
    OInterfaceIteratorHelper2 aListenerLoop(m_aContainerListeners);
    while (aListenerLoop.hasMoreElements())
        static_cast<XContainerListener*>(aListenerLoop.next())->elementInserted(aEvent);
}

OUString OTables::getNameForObject(const sdbcx::ObjectType& _xObject)
{
    OSL_ENSURE(_xObject.is(),"OTables::getNameForObject: Object is NULL!");
    return ::dbtools::composeTableName( m_xMetaData, _xObject, ::dbtools::EComposeRule::InDataManipulation, false );
}


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