/*
    Copyright 2005-2015 Intel Corporation.  All Rights Reserved.

    This file is part of Threading Building Blocks. Threading Building Blocks is free software;
    you can redistribute it and/or modify it under the terms of the GNU General Public License
    version 2  as  published  by  the  Free Software Foundation.  Threading Building Blocks 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 Threading Building Blocks; if not, write to the
    Free Software Foundation, Inc.,  51 Franklin St,  Fifth Floor,  Boston,  MA 02110-1301 USA

    As a special exception,  you may use this file  as part of a free software library without
    restriction.  Specifically,  if other files instantiate templates  or use macros or inline
    functions from this file, or you compile this file and link it with other files to produce
    an executable,  this file does not by itself cause the resulting executable to be covered
    by the GNU General Public License. This exception does not however invalidate any other
    reasons why the executable file might be covered by the GNU General Public License.
*/

#include "statistics.h"
#include "statistics_xml.h"

#define COUNT_PARAMETERS 3

#ifdef _MSC_VER
#define snprintf _snprintf
#endif

void GetTime(char* buff,int size_buff) 
{
    tm *newtime;
    time_t timer;
    time(&timer);
    newtime=localtime(&timer);
    strftime(buff,size_buff,"%H:%M:%S",newtime); 
}

void GetDate(char* buff,int size_buff) 
{
    tm *newtime;
    time_t timer;
    time(&timer);  
    newtime=localtime(&timer);
    strftime(buff,size_buff,"%Y-%m-%d",newtime); 
}


StatisticsCollector::TestCase StatisticsCollector::SetTestCase(const char *name, const char *mode, int threads)
{
    string KeyName(name);
    switch (SortMode)
    {
    case ByThreads: KeyName += Format("_%02d_%s", threads, mode); break;
    default:
    case ByAlg: KeyName += Format("_%s_%02d", mode, threads); break;
    }
    CurrentKey = Statistics[KeyName];
    if(!CurrentKey) {
        CurrentKey = new StatisticResults;
        CurrentKey->Mode = mode;
        CurrentKey->Name = name;
        CurrentKey->Threads = threads;
        CurrentKey->Results.reserve(RoundTitles.size());
        Statistics[KeyName] = CurrentKey;
    }
    return TestCase(CurrentKey);
}

StatisticsCollector::~StatisticsCollector()
{
    for(Statistics_t::iterator i = Statistics.begin(); i != Statistics.end(); i++)
        delete i->second;
}

void StatisticsCollector::ReserveRounds(size_t index)
{
    size_t i = RoundTitles.size();
    if (i > index) return;
    char buf[16];
    RoundTitles.resize(index+1);
    for(; i <= index; i++) {
        snprintf( buf, 15, "%u", unsigned(i+1) );
        RoundTitles[i] = buf;
    }
    for(Statistics_t::iterator i = Statistics.begin(); i != Statistics.end(); i++) {
        if(!i->second) printf("!!!'%s' = NULL\n", i->first.c_str());
        else i->second->Results.reserve(index+1);
    }
}

void StatisticsCollector::AddRoundResult(const TestCase &key, value_t v)
{
    ReserveRounds(key.access->Results.size());
    key.access->Results.push_back(v);
}

void StatisticsCollector::SetRoundTitle(size_t index, const char *fmt, ...)
{
    vargf2buff(buff, 128, fmt);
    ReserveRounds(index);
    RoundTitles[index] = buff;
}

void StatisticsCollector::AddStatisticValue(const TestCase &key, const char *type, const char *fmt, ...)
{
    vargf2buff(buff, 128, fmt);
    AnalysisTitles.insert(type);
    key.access->Analysis[type] = buff;
}

void StatisticsCollector::AddStatisticValue(const char *type, const char *fmt, ...)
{
    vargf2buff(buff, 128, fmt);
    AnalysisTitles.insert(type);
    CurrentKey->Analysis[type] = buff;
}

void StatisticsCollector::SetRunInfo(const char *title, const char *fmt, ...)
{
    vargf2buff(buff, 256, fmt);
    RunInfo.push_back(make_pair(title, buff));
}

void StatisticsCollector::SetStatisticFormula(const char *name, const char *formula)
{
    Formulas[name] = formula;
}

void StatisticsCollector::SetTitle(const char *fmt, ...)
{
    vargf2buff(buff, 256, fmt);
    Title = buff;
}

string ExcelFormula(const string &fmt, size_t place, size_t rounds, bool is_horizontal)
{
    char buff[16];
    if(is_horizontal)
        snprintf(buff, 15, "RC[%u]:RC[%u]", unsigned(place), unsigned(place+rounds-1));
    else
        snprintf(buff, 15, "R[%u]C:R[%u]C", unsigned(place+1), unsigned(place+rounds));
    string result(fmt); size_t pos = 0;
    while ( (pos = result.find("ROUNDS", pos, 6)) != string::npos )
        result.replace(pos, 6, buff);
    return result;
}

void StatisticsCollector::Print(int dataOutput, const char *ModeName)
{
    FILE *OutputFile;
    const char *file_suffix = getenv("STAT_SUFFIX");
    if( !file_suffix ) file_suffix = "";
    const char *file_format = getenv("STAT_FORMAT");
    if( file_format ) {
        dataOutput = 0;
        if( strstr(file_format, "con")||strstr(file_format, "std") ) dataOutput |= StatisticsCollector::Stdout;
        if( strstr(file_format, "txt")||strstr(file_format, "csv") ) dataOutput |= StatisticsCollector::TextFile;
        if( strstr(file_format, "excel")||strstr(file_format, "xml") ) dataOutput |= StatisticsCollector::ExcelXML;
        if( strstr(file_format, "htm") ) dataOutput |= StatisticsCollector::HTMLFile;
        if( strstr(file_format, "pivot") ) dataOutput |= StatisticsCollector::PivotMode;
    }
    for(int i = 1; i < 10; i++) {
        string env = Format("STAT_RUNINFO%d", i);
        const char *info = getenv(env.c_str());
        if( info ) {
            string title(info);
            size_t pos = title.find('=');
            if( pos != string::npos ) {
                env = title.substr(pos+1);
                title.resize(pos);
            } else env = title;
            RunInfo.push_back(make_pair(title, env));
        }
    }

    if (dataOutput & StatisticsCollector::Stdout)
    {
        printf("\n-=# %s #=-\n", Title.c_str());
        if(SortMode == ByThreads)
            printf("    Name    |  #  | %s ", ModeName);
        else
            printf("    Name    | %s |  #  ", ModeName);
        for (AnalysisTitles_t::iterator i = AnalysisTitles.begin(); i != AnalysisTitles.end(); i++)
            printf("|%s", i->c_str()+1);

        for (Statistics_t::iterator i = Statistics.begin(); i != Statistics.end(); i++)
        {
            if(SortMode == ByThreads)
                printf("\n%12s|% 5d|%6s", i->second->Name.c_str(), i->second->Threads, i->second->Mode.c_str());
            else
                printf("\n%12s|%6s|% 5d", i->second->Name.c_str(), i->second->Mode.c_str(), i->second->Threads);
            Analysis_t &analisis = i->second->Analysis;
            AnalysisTitles_t::iterator t = AnalysisTitles.begin();
            for (Analysis_t::iterator a = analisis.begin(); a != analisis.end(); t++)
            {
                char fmt[8]; snprintf(fmt, 7, "|%% %us", unsigned(max(size_t(3), t->size())));
                if(*t != a->first)
                    printf(fmt, "");
                else {
                    printf(fmt, a->second.c_str()); a++;
                }
            }
        }
        printf("\n");
    }
    if (dataOutput & StatisticsCollector::TextFile)
    {
        bool append = false;
        const char *file_ext = ".txt";
        if( file_format && strstr(file_format, "++") ) append = true;
        if( file_format && strstr(file_format, "csv") ) file_ext = ".csv";
        if ((OutputFile = fopen((Name+file_suffix+file_ext).c_str(), append?"at":"wt")) == NULL) {
            printf("Can't open .txt file\n");
        } else {
            const char *delim = getenv("STAT_DELIMITER");
            if( !delim || !delim[0] ) {
                if( file_format && strstr(file_format, "csv") ) delim = ",";
                else delim = "\t";
            }
            if( !append || !ftell(OutputFile) ) { // header needed
                append = false;
                if(SortMode == ByThreads) fprintf(OutputFile, "Name%s#%s%s", delim, delim, ModeName);
                else fprintf(OutputFile, "Name%s%s%s#", delim, ModeName, delim);
                for( size_t k = 0; k < RunInfo.size(); k++ )
                    fprintf(OutputFile, "%s%s", delim, RunInfo[k].first.c_str());
            }
            if(dataOutput & StatisticsCollector::PivotMode) {
                if( !append) fprintf(OutputFile, "%sColumn%sValue", delim, delim);
                for (Statistics_t::iterator i = Statistics.begin(); i != Statistics.end(); i++)
                {
                    string RowHead;
                    if(SortMode == ByThreads)
                        RowHead = Format("\n%s%s%d%s%s%s", i->second->Name.c_str(), delim, i->second->Threads, delim, i->second->Mode.c_str(), delim);
                    else
                        RowHead = Format("\n%s%s%s%s%d%s", i->second->Name.c_str(), delim, i->second->Mode.c_str(), delim, i->second->Threads, delim);
                    for( size_t k = 0; k < RunInfo.size(); k++ )
                        RowHead.append(RunInfo[k].second + delim);
                    Analysis_t &analisis = i->second->Analysis;
                    for (Analysis_t::iterator a = analisis.begin(); a != analisis.end(); ++a)
                        fprintf(OutputFile, "%s%s%s%s", RowHead.c_str(), a->first.c_str(), delim, a->second.c_str());
                    Results_t &r = i->second->Results;
                    for (size_t k = 0; k < r.size(); k++) {
                        fprintf(OutputFile, "%s%s%s", RowHead.c_str(), RoundTitles[k].c_str(), delim);
                        fprintf(OutputFile, ResultsFmt, r[k]);
                    }
                }
            } else {
                if( !append ) {
                    for( size_t k = 0; k < RunInfo.size(); k++ )
                        fprintf(OutputFile, "%s%s", delim, RunInfo[k].first.c_str());
                    for (AnalysisTitles_t::iterator i = AnalysisTitles.begin(); i != AnalysisTitles.end(); i++)
                        fprintf(OutputFile, "%s%s", delim, i->c_str()+1);
                    for (size_t i = 0; i < RoundTitles.size(); i++)
                        fprintf(OutputFile, "%s%s", delim, RoundTitles[i].c_str());
                }
                for (Statistics_t::iterator i = Statistics.begin(); i != Statistics.end(); i++)
                {
                    if(SortMode == ByThreads)
                        fprintf(OutputFile, "\n%s%s%d%s%s", i->second->Name.c_str(), delim, i->second->Threads, delim, i->second->Mode.c_str());
                    else
                        fprintf(OutputFile, "\n%s%s%s%s%d", i->second->Name.c_str(), delim, i->second->Mode.c_str(), delim, i->second->Threads);
                    for( size_t k = 0; k < RunInfo.size(); k++ )
                        fprintf(OutputFile, "%s%s", delim, RunInfo[k].second.c_str());
                    Analysis_t &analisis = i->second->Analysis;
                    AnalysisTitles_t::iterator t = AnalysisTitles.begin();
                    for (Analysis_t::iterator a = analisis.begin(); a != analisis.end(); ++t) {
                        fprintf(OutputFile, "%s", delim);
                        if(*t == a->first) {
                            fprintf(OutputFile, "%s", a->second.c_str()); ++a;
                        }
                    }
                    //data
                    Results_t &r = i->second->Results;
                    for (size_t k = 0; k < r.size(); k++)
                    {
                        fprintf(OutputFile, "%s", delim);
                        fprintf(OutputFile, ResultsFmt, r[k]);
                    }
                }
            }
            fprintf(OutputFile, "\n");
            fclose(OutputFile);
        }
    }
    if (dataOutput & StatisticsCollector::HTMLFile)
    {
        if ((OutputFile = fopen((Name+file_suffix+".html").c_str(), "w+t")) == NULL) {
            printf("Can't open .html file\n");
        } else {
            char TimerBuff[100], DateBuff[100];
            GetTime(TimerBuff,sizeof(TimerBuff));
            GetDate(DateBuff,sizeof(DateBuff));
            fprintf(OutputFile, "<html><head>\n<title>%s</title>\n</head><body>\n", Title.c_str());
            //-----------------------
            fprintf(OutputFile, "<table id=\"h\" style=\"position:absolute;top:20\" border=1 cellspacing=0 cellpadding=2>\n");
            fprintf(OutputFile, "<tr><td><a name=hr href=#vr onclick=\"v.style.visibility='visible';"
                                "h.style.visibility='hidden';\">Flip[H]</a></td>"
                                "<td>%s</td><td>%s</td><td colspan=%u>%s",
                DateBuff, TimerBuff, unsigned(AnalysisTitles.size() + RoundTitles.size()), Title.c_str());
            for( size_t k = 0; k < RunInfo.size(); k++ )
                fprintf(OutputFile, "; %s: %s", RunInfo[k].first.c_str(), RunInfo[k].second.c_str());
            fprintf(OutputFile, "</td></tr>\n<tr bgcolor=#CCFFFF><td>Name</td><td>Threads</td><td>%s</td>", ModeName);
            for (AnalysisTitles_t::iterator i = AnalysisTitles.begin(); i != AnalysisTitles.end(); i++)
                fprintf(OutputFile, "<td>%s</td>", i->c_str()+1);
            for (size_t i = 0; i < RoundTitles.size(); i++)
                fprintf(OutputFile, "<td>%s</td>", RoundTitles[i].c_str());
            for (Statistics_t::iterator i = Statistics.begin(); i != Statistics.end(); i++)
            {
                fprintf(OutputFile, "</tr>\n<tr><td bgcolor=#CCFFCC>%s</td><td bgcolor=#CCFFCC>%d</td><td bgcolor=#CCFFCC>%4s</td>",
                    i->second->Name.c_str(), i->second->Threads, i->second->Mode.c_str());
                //statistics
                AnalysisTitles_t::iterator t = AnalysisTitles.begin();
                for (Analysis_t::iterator j = i->second->Analysis.begin(); j != i->second->Analysis.end(); t++)
                {
                    fprintf(OutputFile, "<td bgcolor=#FFFF99>%s</td>", (*t != j->first)?" ":(i->second->Analysis[j->first]).c_str());
                    if(*t == j->first) j++;
                }
                //data
                Results_t &r = i->second->Results;
                for (size_t k = 0; k < r.size(); k++)
                {
                    fprintf(OutputFile, "<td>");
                    fprintf(OutputFile, ResultsFmt, r[k]);
                    fprintf(OutputFile, "</td>");
                }
            }
            fprintf(OutputFile, "</tr>\n</table>\n");
            //////////////////////////////////////////////////////
            fprintf(OutputFile, "<table id=\"v\" style=\"visibility:hidden;position:absolute;top:20\" border=1 cellspacing=0 cellpadding=2>\n");
            fprintf(OutputFile, "<tr><td><a name=vr href=#hr onclick=\"h.style.visibility='visible';"
                                "v.style.visibility='hidden';\">Flip[V]</a></td>\n"
                                "<td>%s</td><td>%s</td><td colspan=%u>%s</td>", 
                DateBuff, TimerBuff, unsigned(max(Statistics.size()-2,size_t(1))), Title.c_str());

            fprintf(OutputFile, "</tr>\n<tr bgcolor=#CCFFCC><td bgcolor=#CCFFFF>Name</td>");
            for (Statistics_t::iterator i = Statistics.begin(); i != Statistics.end(); i++)
                fprintf(OutputFile, "<td>%s</td>", i->second->Name.c_str());
            fprintf(OutputFile, "</tr>\n<tr bgcolor=#CCFFCC><td bgcolor=#CCFFFF>Threads</td>");
            for (Statistics_t::iterator n = Statistics.begin(); n != Statistics.end(); n++)
                fprintf(OutputFile, "<td>%d</td>", n->second->Threads);
            fprintf(OutputFile, "</tr>\n<tr bgcolor=#CCFFCC><td bgcolor=#CCFFFF>%s</td>", ModeName);
            for (Statistics_t::iterator m = Statistics.begin(); m != Statistics.end(); m++)
                fprintf(OutputFile, "<td>%s</td>", m->second->Mode.c_str());

            for (AnalysisTitles_t::iterator t = AnalysisTitles.begin(); t != AnalysisTitles.end(); t++)
            {
                fprintf(OutputFile, "</tr>\n<tr bgcolor=#FFFF99><td bgcolor=#CCFFFF>%s</td>", t->c_str()+1);
                for (Statistics_t::iterator i = Statistics.begin(); i != Statistics.end(); i++)
                    fprintf(OutputFile, "<td>%s</td>", i->second->Analysis.count(*t)?i->second->Analysis[*t].c_str():" ");
            }

            for (size_t r = 0; r < RoundTitles.size(); r++)
            {
                fprintf(OutputFile, "</tr>\n<tr><td bgcolor=#CCFFFF>%s</td>", RoundTitles[r].c_str());
                for (Statistics_t::iterator i = Statistics.begin(); i != Statistics.end(); i++)
                {
                    Results_t &result = i->second->Results;
                    fprintf(OutputFile, "<td>");
                    if(result.size() > r)
                        fprintf(OutputFile, ResultsFmt, result[r]);
                    fprintf(OutputFile, "</td>");
                }
            }
            fprintf(OutputFile, "</tr>\n</table>\n</body></html>\n");
            fclose(OutputFile);
        }
    }
    if (dataOutput & StatisticsCollector::ExcelXML)
    {
        if ((OutputFile = fopen((Name+file_suffix+".xml").c_str(), "w+t")) == NULL) {
            printf("Can't open .xml file\n");
        } else {
            // TODO:PivotMode
            char UserName[100];
            char TimerBuff[100], DateBuff[100];
#if _WIN32 || _WIN64
            strcpy(UserName,getenv("USERNAME"));
#else
            strcpy(UserName,getenv("USER"));
#endif
            //--------------------------------
            GetTime(TimerBuff,sizeof(TimerBuff));
            GetDate(DateBuff,sizeof(DateBuff));
            //--------------------------
            fprintf(OutputFile, XMLHead, UserName, TimerBuff);
            fprintf(OutputFile, XMLStyles);
            fprintf(OutputFile, XMLBeginSheet, "Horizontal");
            fprintf(OutputFile, XMLNames,1,1,1,int(AnalysisTitles.size()+Formulas.size()+COUNT_PARAMETERS));
            fprintf(OutputFile, XMLBeginTable, int(RoundTitles.size()+Formulas.size()+AnalysisTitles.size()+COUNT_PARAMETERS+1/*title*/), int(Statistics.size()+1));
            fprintf(OutputFile, XMLBRow);
            fprintf(OutputFile, XMLCellTopName);
            fprintf(OutputFile, XMLCellTopThread);
            fprintf(OutputFile, XMLCellTopMode, ModeName);
            for (AnalysisTitles_t::iterator j = AnalysisTitles.begin(); j != AnalysisTitles.end(); j++)
                fprintf(OutputFile, XMLAnalysisTitle, j->c_str()+1);
            for (Formulas_t::iterator j = Formulas.begin(); j != Formulas.end(); j++)
                fprintf(OutputFile, XMLAnalysisTitle, j->first.c_str()+1);
            for (RoundTitles_t::iterator j = RoundTitles.begin(); j != RoundTitles.end(); j++)
                fprintf(OutputFile, XMLAnalysisTitle, j->c_str());
            string Info = Title;
            for( size_t k = 0; k < RunInfo.size(); k++ )
                Info.append("; " + RunInfo[k].first + "=" + RunInfo[k].second);
            fprintf(OutputFile, XMLCellEmptyWhite, Info.c_str());
            fprintf(OutputFile, XMLERow);
            //------------------------
            for (Statistics_t::iterator i = Statistics.begin(); i != Statistics.end(); i++)
            {
                fprintf(OutputFile, XMLBRow);
                fprintf(OutputFile, XMLCellName,  i->second->Name.c_str());
                fprintf(OutputFile, XMLCellThread,i->second->Threads);
                fprintf(OutputFile, XMLCellMode,  i->second->Mode.c_str());
                //statistics
                AnalysisTitles_t::iterator at = AnalysisTitles.begin();
                for (Analysis_t::iterator j = i->second->Analysis.begin(); j != i->second->Analysis.end(); at++)
                {
                    fprintf(OutputFile, XMLCellAnalysis, (*at != j->first)?"":(i->second->Analysis[j->first]).c_str());
                    if(*at == j->first) j++;
                }
                //formulas
                size_t place = 0;
                Results_t &v = i->second->Results;
                for (Formulas_t::iterator f = Formulas.begin(); f != Formulas.end(); f++, place++)
                    fprintf(OutputFile, XMLCellFormula, ExcelFormula(f->second, Formulas.size()-place, v.size(), true).c_str());
                //data
                for (size_t k = 0; k < v.size(); k++)
                {
                    fprintf(OutputFile, XMLCellData, v[k]);
                }
                if(v.size() < RoundTitles.size())
                    fprintf(OutputFile, XMLMergeRow, int(RoundTitles.size() - v.size()));
                fprintf(OutputFile, XMLERow);
            }
            //------------------------
            fprintf(OutputFile, XMLEndTable);
            fprintf(OutputFile, XMLWorkSheetProperties,1,1,3,3,int(RoundTitles.size()+AnalysisTitles.size()+Formulas.size()+COUNT_PARAMETERS));
            fprintf(OutputFile, XMLAutoFilter,1,1,1,int(AnalysisTitles.size()+Formulas.size()+COUNT_PARAMETERS));
            fprintf(OutputFile, XMLEndWorkSheet);
            //----------------------------------------
            fprintf(OutputFile, XMLEndWorkbook);
            fclose(OutputFile);
        }
    }
}
