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#include "GameExe.h"
#include "File_IO.h"
#include "DirIO.h"

/**
 * Add Exe
 *
 * Adds an exe name available
 */
int CGameExe::AddExe(const Utils::String &exe)
{
        // search if it already exists
        int iCount = this->_findExe(exe);
        if ( iCount != -1 ) return iCount;

        // not found, we need to add
        SGameExe *sExe = new SGameExe;
        sExe->sExe = exe;
        sExe->iName = 0;
        sExe->iFlags = 0;
        sExe->iMaxPatch = 1;
        sExe->iAddonTo = 0;
        sExe->iTextNum = 0;

        m_lExe.push_back(sExe);

        return m_lExe.size() - 1;
}

/**
 * Find Exe
 *
 * Find an exe and return its position in the file
 *
 * Argument:    exe,    String - name of the exe file to find
 */
int CGameExe::_findExe(const Utils::String &exe) const
{
        int count = 0;
        for ( CListNode<SGameExe> *node = m_lExe.Front(); node; node = node->next() )
        {
                if ( node->Data()->sExe.Compare(exe) )
                        return count;
                ++count;
        }

        return -1;
}

SGameExe *CGameExe::gameExe(const Utils::String &exe)
{
        int e = this->_findExe(exe);
        if ( e < 0 ) return NULL;
        return m_lExe[e];
}

int CGameExe::_findVersion(int exe, int size, Utils::String *fVersion)
{
        if ( fVersion ) *fVersion = -1.0;
        if ( exe < 0 ) return -1;

        SGameExe *gameExe = m_lExe[exe];
        if ( !gameExe ) return -1;

        int count = 0;
        for ( CListNode<SGameExeVersion> *node = gameExe->lVersions.Front(); node; node = node->next() ) {
                for ( CListNode<int> *iNode = node->Data()->lSize.Front(); iNode; iNode = iNode->next() ) {
                        int checkSize = *iNode->Data();
                        if ( checkSize == size ) {
                                *fVersion = node->Data()->fVersion;
                                return count;
                        }
                }

                ++count;
        }
         
        return -1;
}

int CGameExe::FindVersion(const Utils::String &exe, int size, Utils::String *fVersion)
{
        int iExe = this->_findExe(exe);
        if ( iExe < 0 )
                return -1;

        int iVersion = this->_findVersion(iExe, size, fVersion);
        if ( iVersion < 0 )
                return -2 - iExe;

        return -1;
}

Utils::String CGameExe::GetModKey(int game)
{
        if ( game < 0 ) return "";
        SGameExe *sExe = m_lExe[game];
        if ( !sExe ) return "";

        return sExe->sModKey;
}

void CGameExe::ParseExe(const Utils::String &line)
{
        // get the exe file
        Utils::String exe = line.token(":", 1);
        int iTextNum = -1;
        if ( exe.isin("|") ) {
                iTextNum = exe.token("|", 2);
                exe = exe.token("|", 1);
        }

        int iExe = this->AddExe(exe);

        SGameExe *sExe = m_lExe[iExe];
        sExe->iMaxPatch = line.token(":", 2);
        sExe->iFlags = this->ParseFlags(line.token(":", 3));
        sExe->sModKey = line.token(":", 4);
        sExe->iTextNum = iTextNum;

        // get the name
        Utils::String gameName = line.token(":", 5);
        this->_SetExeName(&sExe->sName, &sExe->iName, gameName);

        // get mydocs
        sExe->sMyDoc = line.token(":", 6);

        // now get the versions
        int pos = EXE_VERSIONPOS;
        int namestart = EXE_VERSION_NAMESTART;
        int sizestart = EXE_VERSION_SIZESTART;

        if ( sExe->iFlags & EXEFLAG_ADDON ) {
                ++pos;
                ++namestart;
                ++sizestart;
                sExe->sAddon = line.token(":", EXE_VERSIONPOS);
                if ( sExe->sAddon.isin("!") ) {
                        sExe->iAddonTo = this->_findExe(sExe->sAddon.token("!", 2));
                        sExe->sAddon = sExe->sAddon.token("!", 1);
                }
        }

        int iVersions = line.token(":", pos);
        int i;

        for ( i = 0; i < iVersions; i++ )
        {
                SGameExeVersion *sGameVersion = new SGameExeVersion;
                sGameVersion->iName = 0;
                sGameVersion->fVersion = line.token(":", namestart + (i * 2)).token(" ", 1);

                Utils::String sSize = line.token(":", sizestart + (i * 2));
                // multiple versions available, we need to split them up
                if ( sSize.isin("!") ) {
                        int max = 0;
                        Utils::String *sizes = sSize.tokenise("!", &max);
                        if ( sizes && max ) {
                                for ( int j = 0; j < max; j++ ) {
                                        int *size = new int;
                                        (*size) = sizes[j];
                                        if ( *size ) sGameVersion->lSize.push_back(size);
                                }
                                CLEANSPLIT(sizes, max);
                        }
                }
                else {
                        int *size = new int;
                        (*size) = sSize;
                        if ( *size ) sGameVersion->lSize.push_back(size);
                }

                if ( !sGameVersion->lSize.empty() )     {
                        // finally, add the version names
                        this->_SetExeName(&sGameVersion->sName, &sGameVersion->iName, line.token(":", namestart + (i * 2)));
                        sExe->lVersions.push_back(sGameVersion);
                }
        }
}

int CGameExe::ParseFlags(const Utils::String &flags)
{
        int max;
        Utils::String *sFlags = flags.tokenise("|", &max);
        if ( !sFlags || !max ) return EXEFLAG_NONE;

        int f = 0;
        for ( int i = 0; i < max; i++ ) {
                Utils::String str = sFlags[i];
                if ( str.Compare("TC_TEXT") )
                        f |= EXEFLAG_TCTEXT;
                else if ( str.Compare("NO_XOR") )
                        f |= EXEFLAG_NOXOR;
                else if ( str.Compare("ADDON") )
                        f |= EXEFLAG_ADDON;
                else if ( str.Compare("MYDOCLOG") )
                        f |= EXEFLAG_MYDOCLOG;
                else if ( str.Compare("NOSAVESUBDIR") )
                        f |= EXEFLAG_NOSAVESUBDIR;
                else {
                        if ( str.isNumber() )
                                f |= (long)str;
                }
        }

        CLEANSPLIT(sFlags, max);

        return f;
}

void CGameExe::_SetExeName(Utils::String *sName, int *iName, const Utils::String &n)
{
        Utils::String str = n;
        if ( n.isin("!") )
        {
                Utils::String gameNum = str.token("!", 1);
                str = str.token("!", 2);

                if ( gameNum.isNumber() )
                        *iName = gameNum;
                else
                        *sName = gameNum;
        }

        if ( str.isNumber() )
                *iName = str;
        else
                *sName = str;
}

void CGameExe::Reset()
{
        for ( CListNode<SGameExe> *node = m_lExe.Front(); node; node = node->next() )
        {
                for ( CListNode<SGameExeVersion> *vNode = node->Data()->lVersions.Front(); vNode; vNode = vNode->next() )
                        vNode->Data()->lSize.MemoryClear();
                node->Data()->lVersions.MemoryClear();
        }
        m_lExe.MemoryClear();
}

bool CGameExe::ReadFile(const Utils::String &file)
{
        CFileIO File(file);
        if ( !File.startRead() ) return false;

        while ( !File.atEnd() ) {
                Utils::String line = File.readEndOfLine();
                line.removeFirstSpace();
                if ( line.empty() ) continue;
                if ( line[0] == '/' ) continue;
                this->ParseExe(line);
        }
        File.close();
        return true;
}

Utils::String CGameExe::GetGameRunExe(const Utils::String &dir)
{
        CDirIO Dir(dir);
        int count = 0;
        for ( CListNode<SGameExe> *node = m_lExe.Front(); node; node = node->next() )
        {
                SGameExe *exe = node->Data();
                if ( Dir.Exists(exe->sExe) )
                        return dir + "/" + exe->sExe;
                if ( !exe->sAddon.empty() ) {
                        if ( Dir.TopDir().Compare(CyString(exe->sAddon)) )
                                return this->GetGameDir(dir) + "/" + exe->sExe;
                }
                ++count;
        }

        return "";
}

Utils::String CGameExe::GetGameName(const Utils::String &gameExe)
{
        int gameType = this->GetGameType(gameExe);
        Utils::String gameName = ExtractGameName(gameExe);
        if ( gameName.empty() ) gameName = this->GetGameNameFromType(gameType);
        if ( gameName.empty() ) return "";

        // no version
        Utils::String fVersion;
        Utils::String versionName;

        if ( this->GetGameVersionName(gameExe, &versionName) ) {
                if ( !versionName.empty() )
                        return gameName + " V" + versionName;
                else
                        return gameName;
        }

        Utils::String sGameVersion = this->GetGameVersionFromType(gameType, this->GetGameVersion(gameExe, &fVersion), fVersion);
        if ( sGameVersion.empty() )
        {
                if ( !fVersion.empty() )
                        return gameName + " V" + fVersion;
                else
                        return gameName;
        }

        // return the name and the version
        return gameName + " " + sGameVersion;
}


int CGameExe::GetGameAddons(const Utils::String &dir, CyStringList &exes)
{
        int count = 0;

        CDirIO Dir(dir);

        for ( CListNode<SGameExe> *node = m_lExe.Front(); node; node = node->next() )
        {
                SGameExe *exe = node->Data();
                if ( !(exe->iFlags & EXEFLAG_ADDON) )
                        continue;
                if ( Dir.Exists(exe->sExe) ) {
                        if ( Dir.Exists(exe->sAddon) ) {                        
                                exes.PushBack(CyString(exe->sExe), CyString(exe->sAddon));
                                ++count;
                        }
                }
        }

        return count;
}

Utils::String CGameExe::GetAddonDir(const Utils::String &dir)
{
        int gameType = this->GetGameType(dir);
        if ( gameType != -1 ) {
                return m_lExe[gameType]->sAddon;
        }

        return "";
}

Utils::String CGameExe::GetProperDir(const Utils::String &dir)
{
        CDirIO Dir(dir);
        int gameType = this->GetGameType(dir);
        if ( gameType != -1 ) {
                if ( !m_lExe[gameType]->sAddon.empty() ) {
                        if ( CDirIO(dir).IsFile() ) return CFileIO(dir).GetDir().ToString() + "/" + m_lExe[gameType]->sAddon;
                        return Dir.Dir(m_lExe[gameType]->sAddon).ToString();
                }
        }

        return dir;
}

int CGameExe::GetGameFlags(int game)
{
        if ( game == -1 )
                return 0;

        SGameExe *exe = m_lExe[game];
        if ( !exe )
                return 0;

        return exe->iFlags;
}

int CGameExe::GetMaxPatch(int game)
{
        if ( game == -1 )
                return 0;

        SGameExe *exe = m_lExe[game];
        if ( !exe )
                return 0;

        return exe->iMaxPatch;
}

Utils::String CGameExe::GetGameNameFromType(int type)
{
        if ( type == -1 ) return "";

        SGameExe *exe = m_lExe[type];
        if ( !exe ) return "";

        return exe->sName;
}

Utils::String CGameExe::GetGameVersionFromType(int game, int gameVersion, const Utils::String &fGameVersion)
{
        SGameExe *exe = m_lExe[game];
        if ( !exe ) return "";

        SGameExeVersion *version = exe->lVersions[gameVersion];
        if ( !version )
        {
                if ( !fGameVersion.empty() ) return fGameVersion;
                return "";
        }

        return version->sName;
}

Utils::String CGameExe::GetGameDir(const Utils::String &dir) 
{
        CDirIO Dir(dir);

        for ( CListNode<SGameExe> *node = m_lExe.Front(); node; node = node->next() )
        {
                SGameExe *exe = node->Data();
                if ( CDirIO(dir).IsFile() ) {
                        if ( CFileIO(dir).filename().Compare(exe->sExe) )
                                return CFileIO(dir).GetDir().ToString();
                }
                else {
                        if ( Dir.Exists(exe->sExe) ) return dir;
                        // check for addon dir
                        if ( !exe->sAddon.empty() ) {
                                if ( exe->sAddon.Compare(Dir.TopDir().ToString()) )
                                        return Dir.Back().ToString();
                        }
                }
        }

        return dir;
}
int CGameExe::GetGameType(const Utils::String &gameExe)
{
        CDirIO Dir(gameExe);
        int count = 0;

        for ( CListNode<SGameExe> *node = m_lExe.Front(); node; node = node->next() )
        {
                SGameExe *exe = node->Data();
                if ( CDirIO(gameExe).IsFile() ) {
                        if ( CFileIO(gameExe).filename().Compare(exe->sExe) )
                                return count;
                }
                else {
                        if ( Dir.Exists(exe->sExe) )
                                return count;
                        // check for addon dir
                        if ( !exe->sAddon.empty() ) {
                                if ( exe->sAddon.Compare(Dir.TopDir().ToString()) )
                                        return count;
                        }
                }
                ++count;
        }

        return -1;
}

Utils::String CGameExe::ExtractGameName(const Utils::String &gameDir)
{
        CDirIO Dir(gameDir);

        Utils::String sText = this->_extractTextData(this->_readTextFile(gameDir), 1910, 1216);
        if ( sText.empty() ) return "";
        int end = sText.findPos("\\n");
        if ( end >= 0 ) return sText.left(end);

        return "";
}

Utils::String CGameExe::_textFileName(const Utils::String &sGameDir)
{
        CDirIO Dir(sGameDir);
        if ( Dir.Exists("t") && Dir.Exists("t/0002.pck") ) return "t/0002.pck";
        else if ( Dir.Exists("t") && Dir.Exists("t/440002.pck") ) return "t/440002.pck";
        else if ( Dir.Exists("t") && Dir.Exists("t/0002-L044.pck") ) return "t/0002-L044.pck";
        return "";
}

Utils::String CGameExe::_readTextFile(const Utils::String &sGameDir)
{
        Utils::String textFileName = _textFileName(sGameDir);;
        if ( !textFileName.empty() ) {
                Utils::String sVersion;

                CDirIO Dir(sGameDir);
                CFileIO File(Dir.File(textFileName));
                size_t fileSize;
                unsigned char *fileData = File.readAll(&fileSize);
                if ( fileData && fileSize) {
                        size_t newFileSize;
                        unsigned char *pckData = UnPCKData((unsigned char *)fileData, fileSize, &newFileSize);
                        delete fileData;
                        pckData[newFileSize -1] = '\0';
                        Utils::String Data((char *)pckData);
                        delete pckData;
                        return Data;
                }
        }

        return "";
}

Utils::String CGameExe::_extractTextData(const Utils::String &sData, long iPage, long iID)
{
        Utils::String sPage = Utils::String("<page id=\"") + iPage + "\"";
        Utils::String sID = Utils::String("<t id=\"") + iID + "\">";

        int startpage = sData.findPos(sPage);
        if ( startpage >= 0 ) {
                int start = sData.findPos(sID, startpage);
                if ( start >= 0 ) {
                        start += sID.length();
                        int end = sData.findPos("</t>", start);
                        return sData.mid(start, end);
                }
        }

        return "";
}

bool CGameExe::GetGameVersionName(const Utils::String &sGameExe, Utils::String *versionName)
{
        int gameType = this->GetGameType(sGameExe);

        if ( gameType == -1 )
                return false;

        Utils::String gameDir = sGameExe;
        Utils::String gameExe = this->GetGameDir(sGameExe) + "/" + m_lExe[gameType]->sExe;
        int size = (int)CFileIO(gameExe).GetFilesize();

        Utils::String fVersion;
        int version = this->_findVersion(gameType, size, &fVersion);
        // not matched version
        // lets read the text file

        if ( version != -1 ) {
                (*versionName) = this->GetGameVersionFromType(gameType, version, fVersion);
                return true;
        }

        Utils::String sText = this->_extractTextData(this->_readTextFile(gameDir), 1910, 1216);
        Utils::String sVersion = sText.between("Version ", ", ");
        if ( sVersion.empty() ) sVersion = sText.between("ver=", "&amp");

        if ( !sVersion.empty() ) {
                // lets match the version
                (*versionName) = sVersion;
                float fVersion = sVersion;
                SGameExe *gameExe = m_lExe[gameType];
                if ( gameExe )
                {
                        int count = 0;
                        int lower = -1;
                        for ( CListNode<SGameExeVersion> *node = gameExe->lVersions.Front(); node; node = node->next() )
                        {
                                if ( (float)node->Data()->fVersion == fVersion )
                                {
                                        (*versionName) = node->Data()->sName;
                                        return true;
                                }
                                ++count;
                        }

                        version = lower;
                }                               
        }

        return true;
}

int CGameExe::GetGameVersion(const Utils::String &sGameExe, Utils::String *a_fVersion)
{
        Utils::String gameExe = sGameExe;

        int gameType = this->GetGameType(gameExe);

        if ( gameType == -1 )
                return -1;

        Utils::String gameDir = gameExe;
        if ( !m_lExe[gameType]->sAddon.empty() )
                gameExe = CDirIO(gameExe).Back().ToString() + "/" + m_lExe[gameType]->sExe;
        else
                gameExe = gameExe + "/" + m_lExe[gameType]->sExe;
        int size = (int)CFileIO(gameExe).GetFilesize();

        int version = this->_findVersion(gameType, size, a_fVersion);

        Utils::String sText = this->_extractTextData(this->_readTextFile(gameDir), 1910, 10000);
        Utils::String sVersion = sText.between("ver=", "&amp");

        if ( !sVersion.empty() )
        {
                // lets match the version
                Utils::String fVersion = sVersion;
                if ( a_fVersion ) *a_fVersion = fVersion;
                SGameExe *gameExe = m_lExe[gameType];
                if ( gameExe ) {
                        int count = 0;
                        int lower = -1;
                        for ( CListNode<SGameExeVersion> *node = gameExe->lVersions.Front(); node; node = node->next() )
                        {
                                if ( fVersion.compareVersion(node->Data()->fVersion) == COMPARE_OLDER )
                                        lower = count;
                                if (  fVersion.compareVersion(node->Data()->fVersion) == COMPARE_SAME )
                                        return count;
                                ++count;
                        }

                        version = lower;
                }                               
        }

        return version;
}

int CGameExe::ConvertGameType(int gametype, int *version)
{
        int count = 0, game = 0;

        switch ( gametype )
        {
                case 1:
                        *version = 0;
                        return 1;
                case 2:
                        *version = 0;
                        return 2;
                case 3:
                        *version = 1;
                        return 2;
                case 4:
                        *version = 0;
                        return 3;
                case 5:
                        *version = 1;
                        return 3;
                case 6:
                        *version = 2;
                        return 3;
        }

        for ( CListNode<SGameExe> *node = m_lExe.Front(); node; node = node->next() )
        {
                ++count;
                ++game;
                SGameExe *exe = node->Data();

                // found the game type, the version is 0, which is any version
                if ( count == gametype )
                {
                        *version = 0;
                        return game;
                }

                int v = 0;
                for ( CListNode<SGameExeVersion> *vNode = exe->lVersions.Front(); vNode; vNode = vNode->next() )
                {
                        ++count;
                        ++v;
                        if ( count == gametype )
                        {
                                *version = v;
                                return game;
                        }
                }
        }

        // not found ?? just set to all versions
        *version = 0;
        return 0;
}