/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
#include "HeadSpin.h"

#include "plResTreeView.h"

#include "plResMgr/plResManager.h"
#include "plResMgr/plRegistryHelpers.h"
#include "plResMgr/plRegistryNode.h"
#include "plResMgr/plPageInfo.h"
#include "pnKeyedObject/plUoid.h"
#include "pnKeyedObject/plKey.h"
#include "pnKeyedObject/plKeyImp.h"
#include "pnFactory/plFactory.h"

#include <commctrl.h>
#include <shlwapi.h>
#include "res\resource.h"


extern HINSTANCE        gInstance;
HWND    plResTreeView::fInfoDlg = nil;
bool    plResTreeView::fFilter = false;

static char         gSearchString[ 512 ];
static HTREEITEM    fFoundItem = nil;

extern void ViewPatchDetails( plKey &patchKey );


BOOL CALLBACK   FindDialogProc( HWND dlg, UINT msg, WPARAM wParam, LPARAM lParam )
{
    switch( msg )
    {
        case WM_INITDIALOG:
            return true;

        case WM_COMMAND:
            if( LOWORD( wParam ) == IDOK )
            {
                GetDlgItemText( dlg, IDC_SEARCHSTRING, gSearchString, sizeof( gSearchString ) );
                fFoundItem = nil;
                EndDialog( dlg, IDOK );
            }
            else if( LOWORD( wParam ) == IDCANCEL )
                EndDialog( dlg, IDCANCEL );

            return -1;
    }

    return 0;
}


struct plKeyInfo
{
    plKey               fKey;
    plRegistryPageNode  *fPage;

    plKeyInfo( plKey k, plRegistryPageNode *p ) : fKey( k ), fPage( p ) {}
};

// How's this for functionality?
class plResDlgLoader : public plRegistryPageIterator, public plRegistryKeyIterator
{
    protected:

        HWND        fTree;
        HTREEITEM   fCurrItem, fCurrTypeItem;
        uint16_t      fCurrType;
        bool        fFilter;

        plRegistryPageNode  *fCurrPage;


        HTREEITEM AddLeaf(HWND hTree, HTREEITEM hParent, const char *text, plKeyInfo *info )
        {
            TVITEM tvi = {0};
            tvi.mask       = TVIF_TEXT | TVIF_PARAM;
            tvi.pszText    = text ? (char*)text : "<NULL>";
            tvi.cchTextMax = text ? strlen(text) : 7;
            tvi.lParam     = (LPARAM)info;

            TVINSERTSTRUCT tvins = {0};
            tvins.item         = tvi;
            tvins.hParent      = hParent;
            tvins.hInsertAfter = TVI_SORT;

            return TreeView_InsertItem(hTree, &tvins);
        }

    public:

        plResDlgLoader( HWND hTree, bool filter )
        {
            fFilter = filter;
            fTree = hTree;
            ((plResManager *)hsgResMgr::ResMgr())->IterateAllPages( this );
        }

        virtual hsBool  EatPage( plRegistryPageNode *page )
        {
            char    str[ 512 ];


            fCurrPage = page;
            const plPageInfo &info = page->GetPageInfo();
            sprintf( str, "%s->%s", info.GetAge(), info.GetPage() );
            fCurrItem = AddLeaf( fTree, NULL, str, new plKeyInfo( nil, fCurrPage ) );

            fCurrType = (uint16_t)-1;
            page->LoadKeys();
            page->IterateKeys( this );
            return true;
        }

        virtual hsBool  EatKey( const plKey& key )
        {
            if( fCurrType != key->GetUoid().GetClassType() )
            {
                fCurrType = key->GetUoid().GetClassType();
                const char *className = plFactory::GetNameOfClass( fCurrType );
                fCurrTypeItem = AddLeaf( fTree, fCurrItem, className != nil ? className : "<unknown>", nil );
            }

            if( !fFilter )
                AddLeaf( fTree, fCurrTypeItem, key->GetUoid().GetObjectName().c_str(), new plKeyInfo( key, fCurrPage ) );
            return true;
        }
};

void    plResTreeView::FillTreeViewFromRegistry( HWND hWnd )
{
    plResDlgLoader loader( hWnd, fFilter );
}

HTREEITEM   IGetNextTreeItem( HWND tree, HTREEITEM item )
{
    // First try child items of this one
    HTREEITEM next = TreeView_GetChild( tree, item );
    if( next == nil )
        // If no child items, try next sibling
        next = TreeView_GetNextSibling( tree, item );
    if( next == nil )
    {
        // If no siblings, go up to the parent and keep searching until we find a parent with a sibling
        next = item;
        while( true )
        {
            next = TreeView_GetParent( tree, next );
            if( next == nil )
            {
                // No parent; not found, so stop
                break;
            }
            else if( TreeView_GetNextSibling( tree, next ) != nil )
            {
                next = TreeView_GetNextSibling( tree, next );
                break;
            }
        }
    }

    return next;
}

void    plResTreeView::FindNextObject( HWND tree )
{
    if( fFoundItem == nil )
        FindObject( tree );
    else
    {
        fFoundItem = IGetNextTreeItem( tree, fFoundItem );
        IFindNextObject( tree );
    }
}

void    plResTreeView::FindObject( HWND tree )
{
    if( DialogBox( gInstance, MAKEINTRESOURCE( IDD_FINDOBJ ), tree, FindDialogProc ) == IDOK )
    {
        fFoundItem = TreeView_GetRoot( tree );
        IFindNextObject( tree );
    }
}

void    plResTreeView::IFindNextObject( HWND tree )
{
    while( fFoundItem != nil )
    {
        // Get the item
        TVITEM  itemInfo;
        itemInfo.mask = TVIF_PARAM | TVIF_HANDLE;
        itemInfo.hItem = fFoundItem;
        TreeView_GetItem( tree, &itemInfo );
        plKeyInfo *keyInfo = (plKeyInfo *)itemInfo.lParam;
        if( keyInfo != nil && keyInfo->fKey != nil )
        {
            if( keyInfo->fKey->GetUoid().GetObjectName().Compare( gSearchString, plString::kCaseInsensitive ) >= 0 )
            {
                /// FOUND
                TreeView_SelectItem( tree, fFoundItem );
                return;
            }
        }

        // Keep searching. First try child items of this one
        fFoundItem = IGetNextTreeItem( tree, fFoundItem );
    }

    MessageBox( tree, "No objects found", "Find Object", MB_OK );
}

void    IDeleteRecurse( HWND tree, HTREEITEM item )
{
    while( item != nil )
    {
        HTREEITEM   child = TreeView_GetChild( tree, item );
        if( child != nil )
            IDeleteRecurse( tree, child );

        TVITEM  itemInfo;
        itemInfo.mask = TVIF_PARAM | TVIF_HANDLE;
        itemInfo.hItem = item;
        TreeView_GetItem( tree, &itemInfo );
        plKeyInfo *keyInfo = (plKeyInfo *)itemInfo.lParam;
        if( keyInfo != nil )
        {
            delete keyInfo;
            itemInfo.lParam = 0;
            TreeView_SetItem( tree, &itemInfo );
        }

        item = TreeView_GetNextSibling( tree, item );
    }
}

void    plResTreeView::ClearTreeView( HWND hWnd )
{
    HTREEITEM   root = TreeView_GetRoot( hWnd );
    if( root != nil )
        IDeleteRecurse( hWnd, root );

    TreeView_DeleteAllItems( hWnd );
}

void    plResTreeView::SelectionDblClicked( HWND treeCtrl )
{
    HTREEITEM   sel = TreeView_GetSelection( treeCtrl );
    if( sel != nil )
    {
        TVITEM  item;

        item.mask = TVIF_PARAM | TVIF_HANDLE;
        item.hItem = sel;
        if( !TreeView_GetItem( treeCtrl, &item ) )
            return;
    }
}

void    plResTreeView::FilterLoadables( bool filter, HWND treeCtrl )
{
    fFilter = filter;
    ClearTreeView( treeCtrl );
    FillTreeViewFromRegistry( treeCtrl );
}

BOOL CALLBACK   plResTreeView::InfoDlgProc( HWND dlg, UINT msg, WPARAM wParam, LPARAM lParam )
{
    switch( msg )
    {
        case WM_INITDIALOG:
            fInfoDlg = dlg;
            break;

        case WM_COMMAND:
            return SendMessage( GetParent( dlg ), msg, wParam, lParam );            
    }

    return 0;
}

void    plResTreeView::VerifyCurrentPage( HWND treeCtrl )
{
    HTREEITEM   sel = TreeView_GetSelection( treeCtrl );
    if( sel != nil )
    {
        TVITEM  item;

        item.mask = TVIF_PARAM | TVIF_HANDLE;
        item.hItem = sel;
        if( !TreeView_GetItem( treeCtrl, &item ) )
            return;

        plKeyInfo *info = (plKeyInfo *)item.lParam;
        if( info != nil )
        {
            if( info->fPage != nil )
            {
                // TODO: FIXME
                /*
                /// HACK. Live with it
                class plHackResManager : public plResManager
                {
                    public:
                        plRegistry *GetRegistry( void ) { return IGetRegistry(); }
                };

                plRegistry *registry = ((plHackResManager *)hsgResMgr::ResMgr())->GetRegistry();

                plRegistry::plPageCond result = registry->VerifyOnePage( info->fPage );

                char msg[ 512 ];
                if( result == plRegistry::kOK || result == plRegistry::kTooNew )
                    strcpy( msg, "Page verifies OK" );
                else if( result == plRegistry::kChecksumInvalid )
                    strcpy( msg, "Checksums for page are invalid" );
                else if( result == plRegistry::kOutOfDate )
                    strcpy( msg, "Page is older than the current data version" );

                hsMessageBox( msg, "Verification Results", hsMessageBoxNormal );
                */
            }
        }
    }
}

void    plResTreeView::UpdateInfoDlg( HWND treeCtrl )
{
    hsBool showAsHex = (hsBool)IsDlgButtonChecked( fInfoDlg, IDC_SHOWASHEX );

    SetDlgItemText( fInfoDlg, IDC_NAME, "" );
    SetDlgItemText( fInfoDlg, IDC_CLASS, "" );
    SetDlgItemText( fInfoDlg, IDC_LENGTH, "" );
    SetDlgItemText( fInfoDlg, IDC_STARTPOS, "" );
    EnableWindow( GetDlgItem( fInfoDlg, ID_FILE_VERIFYPAGE ), FALSE );

    HTREEITEM   sel = TreeView_GetSelection( treeCtrl );
    if( sel != nil )
    {
        TVITEM  item;

        item.mask = TVIF_PARAM | TVIF_HANDLE;
        item.hItem = sel;
        if( !TreeView_GetItem( treeCtrl, &item ) )
            return;

        plKeyInfo *info = (plKeyInfo *)item.lParam;
        if( info != nil )
        {
            if( info->fPage != nil )
            {
                const plPageInfo    &pageInfo = info->fPage->GetPageInfo();
                char                tempStr[ 32 ];

                SetDlgItemText( fInfoDlg, IDC_AGE, pageInfo.GetAge() );
                SetDlgItemText( fInfoDlg, IDC_PAGE, pageInfo.GetPage() );

                SetDlgItemText( fInfoDlg, IDC_LOCATION, pageInfo.GetLocation().StringIze().c_str() );

                CheckDlgButton(fInfoDlg, IDC_RESERVED,   (pageInfo.GetLocation().GetFlags() & plLocation::kReserved) ? BST_CHECKED : BST_UNCHECKED);
                CheckDlgButton(fInfoDlg, IDC_BUILTIN,    (pageInfo.GetLocation().GetFlags() & plLocation::kBuiltIn) ? BST_CHECKED : BST_UNCHECKED);
                CheckDlgButton(fInfoDlg, IDC_VOLATILE,   (pageInfo.GetLocation().GetFlags() & plLocation::kVolatile) ? BST_CHECKED : BST_UNCHECKED);
                CheckDlgButton(fInfoDlg, IDC_LOCAL_ONLY, (pageInfo.GetLocation().GetFlags() & plLocation::kLocalOnly) ? BST_CHECKED : BST_UNCHECKED);

                sprintf( tempStr, "%d", pageInfo.GetMajorVersion());
                SetDlgItemText( fInfoDlg, IDC_DATAVERSION, tempStr );

                SetDlgItemText( fInfoDlg, IDC_CHECKSUMTYPE, "Basic (file size)" );
                EnableWindow( GetDlgItem( fInfoDlg, ID_FILE_VERIFYPAGE ), TRUE );
            }

            if( info->fKey != nil )
            {
                char    str[ 128 ];


                SetDlgItemText( fInfoDlg, IDC_NAME, info->fKey->GetUoid().GetObjectName().c_str() );

                const char *name = plFactory::GetNameOfClass( info->fKey->GetUoid().GetClassType() );
                sprintf( str, "%s (%d)", name != nil ? name : "<unknown>", info->fKey->GetUoid().GetClassType() );
                SetDlgItemText( fInfoDlg, IDC_CLASS, str );

                plKeyImp *imp = (plKeyImp *)info->fKey;
                EnableWindow( GetDlgItem( fInfoDlg, IDC_STARTPOS_LABEL ), true );
                EnableWindow( GetDlgItem( fInfoDlg, IDC_SIZE_LABEL ), true );

                if( showAsHex )
                    sprintf( str, "0x%X", imp->GetStartPos() );
                else
                    sprintf( str, "%d", imp->GetStartPos() );
                SetDlgItemText( fInfoDlg, IDC_STARTPOS, str );

                if( imp->GetDataLen() < 1024 )
                    sprintf( str, "%d bytes", imp->GetDataLen() );
                else if( imp->GetDataLen() < 1024 * 1024 )
                    sprintf( str, "%4.2f kB", imp->GetDataLen() / 1024.f );
                else
                    sprintf( str, "%4.2f MB", imp->GetDataLen() / 1024.f / 1024.f );

                SetDlgItemText( fInfoDlg, IDC_LENGTH, str );
            }
        }
    }
}

#include "hsStream.h"
#include <commdlg.h>

void plResTreeView::SaveSelectedObject(HWND treeCtrl)
{
    // TODO: FIXME
    /*
    plKey itemKey = nil;

    HTREEITEM sel = TreeView_GetSelection(treeCtrl);
    if (sel != nil)
    {
        TVITEM  item;
        item.mask = TVIF_PARAM | TVIF_HANDLE;
        item.hItem = sel;
        if (TreeView_GetItem(treeCtrl, &item))
        {
            plKeyInfo *info = (plKeyInfo*)item.lParam;
            if (info != nil)
                itemKey = info->fKey;
        }
    }

    if (!itemKey)
        return;

    char fileName[MAX_PATH];
    sprintf(fileName, "%s.bin", itemKey->GetName());

    OPENFILENAME openInfo;
    memset( &openInfo, 0, sizeof( OPENFILENAME ) );
//  openInfo.hInstance = gInstance;
//  openInfo.hwndOwner = hWnd;
    openInfo.lStructSize = sizeof( OPENFILENAME );
    openInfo.lpstrFile = fileName;
    openInfo.nMaxFile = sizeof( fileName );
    openInfo.lpstrFilter = "Binary Files\0*.bin\0All Files\0*.*\0";
//  openInfo.lpstrTitle = "Choose a pack index file to browse:";
//  openInfo.Flags = OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST;

    if (GetSaveFileName(&openInfo))
    {
        plKeyImp* keyImp = (plKeyImp*)itemKey;

        if (keyImp->GetDataLen() <= 0)
            return;

        plResManager* resMgr = (plResManager*)hsgResMgr::ResMgr();
        const plPageInfo& pageInfo = resMgr->FindPage(keyImp->GetUoid().GetLocation())->GetPageInfo();

        plRegistryDataStream *stream = registry->OpenPageDataStream( keyImp->GetUoid().GetLocation(), false );
        if( stream == nil )
            return;

        hsStream    *dataStream = stream->GetStream();
        uint8_t       *buffer = new uint8_t[ keyImp->GetDataLen() ];
        if( buffer != nil )
        {
            dataStream->SetPosition( keyImp->GetStartPos() );
            dataStream->Read( keyImp->GetDataLen(), buffer );
        }
        delete stream;

        if( buffer == nil )
            return;

        hsUNIXStream outStream;
        outStream.Open(fileName, "wb");
        outStream.Write(keyImp->GetDataLen(), buffer);
        outStream.Close();

        delete [] buffer;
    }
    */
}