#include "tcontenthistory.h"

#include <qstring></qstring>

#include <qdatetime></qdatetime>

#include <qstringlist></qstringlist>

#include <qprocess></qprocess>

#include <qtextstream></qtextstream>

#ifdef _WIN32

#include <windows.h></windows.h>

#endif

#include <map></map>

#include <qfile></qfile>

/*

class HistoryRec

{

QDateTime m_date;

HistoryRec(const QDateTime&date QString&user, const QString&machine)

 : date(date)

 , m_user

};

*/

using namespace std;

//-------------------------------------------------------

TContentHistory::TContentHistory(bool isLevel)

    : m_isLevel(isLevel), m_frozenHistory() {}

//-------------------------------------------------------

TContentHistory::~TContentHistory() {}

//-------------------------------------------------------

TContentHistory *TContentHistory::clone() const {

  TContentHistory *history = new TContentHistory(m_isLevel);

  history->deserialize(serialize());

  return history;

}

//-------------------------------------------------------

void TContentHistory::deserialize(const QString ¤tHistory) {

  m_frozenHistory = currentHistory;

}

/*

QStringList strlist = str.split("#");

//skip strlist[0], is the header

int i;

for (i=1; i

  {

  QString str = strlist.at(i);

  parseLine(&str);

   }

}*/

//--------------------------------------------------------------------

inline QString blanks(const QString &str, int count = 15) {

  QString res = str;

  if (res.size() >= count)

    res.truncate(count);

  else

    res += QString(count - str.size(), ' ');

  return res;

}

//--------------------------------------------------------------------

inline QString getStr(const TFrameId &id) {

  if (id.getLetter() != 0)

    return QString::number(id.getNumber()) + id.getLetter();

  else

    return QString::number(id.getNumber());

}

//--------------------------------------------------------------------

const QString Fmt = "dd MMM yy   hh:mm";

static QString getLine(int counter, const QDateTime &date,

                       const set<tframeid> &frames) {</tframeid>

  static QString user;

  static QString machine;

  if (user == "") {

    QStringList list = QProcess::systemEnvironment();

    int j;

    for (j = 0; j < list.size(); j++) {

      QString value = list.at(j);

      if (value.startsWith("USERNAME="))

        user = blanks(value.right(value.size() - 9));

      else if (value.startsWith("COMPUTERNAME="))

        machine = blanks(value.right(value.size() - 13));

    }

  }

  if (frames.empty())

    return "| #" + blanks(QString::number(counter), 4) +

           blanks(date.toString(Fmt), 20) + blanks(machine, 12) + user + " |";

  QString framesStr;

  set<tframeid>::const_iterator it = frames.begin();</tframeid>

  TFrameId first, last;

  while (it != frames.end()) {

    first = last = *it;

    ++it;

    while (it != frames.end() &&

           ((*it).getNumber() == last.getNumber() ||  // 1a, 1b....

            (*it).getNumber() == last.getNumber() + 1)) {

      assert(*it > last);

      last = *it, ++it;

    }

    framesStr += getStr(first) + ((first != last) ? "-" + getStr(last) : "");

    if (it != frames.end()) framesStr += ", ";

  }

  return "| #" + blanks(QString::number(counter), 4) +

         blanks(date.toString(Fmt), 20) + blanks(machine, 12) + user +

         blanks(framesStr, 20) + " |";

}

//--------------------------------------------------------------------

static int getCurrentCount(const QString &str) {

  if (str == "") return 0;

  int from = str.lastIndexOf('#') + 1;

  assert(from != -1);

  int to = str.indexOf(" ", from) - 1;

  assert(to != -1);

  assert(from <= to);

  return (str.mid(from, to - from + 1)).toInt();

}

//--------------------------------------------------------------------

const QString TContentHistory::currentToString() const {

  if (m_records.empty()) return "";

  int counter = getCurrentCount(m_frozenHistory);

  if (!m_isLevel) {

    assert(m_records.size() == 1);

    return getLine(++counter, m_records.begin()->second, set<tframeid>());</tframeid>

  }

  QString out;

  std::multimap<qdatetime, tframeid=""> dateSorted;</qdatetime,>

  std::map<tframeid, qdatetime="">::const_iterator it;</tframeid,>

  for (it = m_records.begin(); it != m_records.end(); ++it)

    dateSorted.insert(pair<qdatetime, tframeid="">(it->second, it->first));</qdatetime,>

  std::multimap<qdatetime, tframeid="">::const_iterator it1 = dateSorted.begin();</qdatetime,>

  QDateTime currDate = it1->first;

  while (it1 != dateSorted.end()) {

    set<tframeid> frames;</tframeid>

    while (it1 != dateSorted.end() && currDate == it1->first) {

      frames.insert(it1->second);

      ++it1;

    }

    assert(!frames.empty());

    out += getLine(++counter, currDate, frames);

    if (it1 != dateSorted.end()) currDate = it1->first;

  }

  return out;

}

//--------------------------------------------------------------------

const QString TContentHistory::serialize() const {

  const QString currentHistory = currentToString();

  if (m_frozenHistory != "")

    return m_frozenHistory + currentHistory;

  else if (currentHistory != "") {

    if (m_isLevel)

      return "| #    DATE:       Time:   MACHINE:    USER:          FRAMES "

             "MODIFIED:     |" +

             currentHistory;

    else

      return "| #    DATE:       Time:   MACHINE:    USER:           |" +

             currentHistory;

  } else

    return "";

}

//--------------------------------------------------------------------

void TContentHistory::fixCurrentHistory() {

  m_frozenHistory = serialize();

  m_records.clear();

}

//--------------------------------------------------------------------

void TContentHistory::frameRangeModifiedNow(const TFrameId &fromId,

                                            const TFrameId &toId) {

  assert(m_isLevel);

  QDateTime date = QDateTime::currentDateTime();

  QDateTime dateNoSecs(date.date(), date.time().addSecs(-date.time().second()));

  assert(dateNoSecs.secsTo(date) == date.time().second());

  int i;

  m_records[fromId] = dateNoSecs;

  if (fromId == toId) return;

  for (i = fromId.getNumber() + 1; i <= toId.getNumber() - 1; i++)

    m_records[TFrameId(i)] = dateNoSecs;

  m_records[toId] = dateNoSecs;

}

//--------------------------------------------------------------------

void TContentHistory::modifiedNow() {

  assert(!m_isLevel);

  QDateTime date = QDateTime::currentDateTime();

  QDateTime dateNoSecs(date.date(), date.time().addSecs(-date.time().second()));

  assert(dateNoSecs.secsTo(date) == date.time().second());

  m_records[0] = dateNoSecs;

}

/*

void testHistory()

{

                {

                TContentHistory ch(true);

                ch.frameModifiedNow(TFrameId(13));

                Sleep(1000);

                ch.frameModifiedNow(TFrameId(3, 'c'));

                ch.frameRangeModifiedNow(TFrameId(5), TFrameId(7));

                ch.fixCurrentHistory();

                Sleep(2000);

                ch.frameRangeModifiedNow(TFrameId(6), TFrameId(9));

                ch.frameModifiedNow(TFrameId(11));

                QString str1 = ch.serialize();

                TContentHistory ch1(true);

                ch1.deserialize(str1);

                ch1.frameRangeModifiedNow(TFrameId(2), TFrameId(3, 'c'));

                Sleep(2000);

                ch1.frameModifiedNow(TFrameId(3, 'a'));

                ch1.fixCurrentHistory();

                Sleep(2000);

                ch1.frameModifiedNow(TFrameId(11, 'b'));

                ch1.frameModifiedNow(TFrameId(12));

                QString str2 = ch1.serialize();

                QFile f("C:\\temp\\out.txt");

                f.open(QIODevice::WriteOnly | QIODevice::Text);

                QTextStream out(&f);

                out << str2;

                }

    {

                TContentHistory ch(false);

                ch.modifiedNow();

                Sleep(1000);

                ch.modifiedNow();

                ch.modifiedNow();

                ch.fixCurrentHistory();

                Sleep(2000);

                ch.modifiedNow();

                ch.modifiedNow();

                QString str1 = ch.serialize();

                TContentHistory ch1(false);

                ch1.deserialize(str1);

                ch1.modifiedNow();

                Sleep(2000);

                ch1.modifiedNow();

                ch1.fixCurrentHistory();

                Sleep(2000);

                ch1.modifiedNow();

                ch1.modifiedNow();

                QString str2 = ch1.serialize();

                QFile f("C:\\temp\\out1.txt");

                f.open(QIODevice::WriteOnly | QIODevice::Text);

                QTextStream out(&f);

                out << str2;

                }

}

*/