/***************************************************************************
                          kinvestmentlistitem.cpp  -  description
                             -------------------
    begin                : Wed Feb 6 2002
    copyright            : (C) 2000-2002 by Michael Edwardes
    email                : mte@users.sourceforge.net
                           Javier Campos Morales <javi_c@users.sourceforge.net>
                           Felix Rodriguez <frodriguez@users.sourceforge.net>
                           John C <thetacoturtle@users.sourceforge.net>
                           Thomas Baumgart <ipwizard@users.sourceforge.net>
                           Kevin Tambascio <ktambascio@users.sourceforge.net>
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

// ----------------------------------------------------------------------------
// QT Includes

#include <tqpainter.h>

// ----------------------------------------------------------------------------
// KDE Includes

#include <tdelistview.h>

// ----------------------------------------------------------------------------
// Project Includes

#include <kmymoney/kmymoneyglobalsettings.h>

#include "kinvestmentlistitem.h"

#include <kmymoney/mymoneysecurity.h>
#include <kmymoney/mymoneyfile.h>

KInvestmentListItem::KInvestmentListItem(TDEListView* parent, const MyMoneyAccount& account)
  : TDEListViewItem(parent)
{
  bColumn5Negative = false;
  bColumn6Negative = false;
  bColumn7Negative = false;
  bColumn8Negative = false;
  bColumn9Negative = false;

  m_account = account;
  m_listView = parent;

  MyMoneySecurity security;
  MyMoneyFile* file = MyMoneyFile::instance();

  security = file->security(m_account.currencyId());
  m_tradingCurrency = file->security(security.tradingCurrency());

  int prec = MyMoneyMoney::denomToPrec(m_tradingCurrency.smallestAccountFraction());

  TQValueList<MyMoneyTransaction> transactionList;
  // FIXME PRICE
  // equity_price_history history = equity.priceHistory();

  //column 0 (COLUMN_NAME_INDEX) is the name of the stock
  setText(COLUMN_NAME_INDEX, m_account.name());

  //column 1 (COLUMN_SYMBOL_INDEX) is the ticker symbol
  setText(COLUMN_SYMBOL_INDEX, security.tradingSymbol());

  //column 2 is the net value (price * quantity owned)
  MyMoneyPrice price = file->price(m_account.currencyId(), m_tradingCurrency.id());
  if(price.isValid()) {
    setText(COLUMN_VALUE_INDEX, (file->balance(m_account.id()) * price.rate(m_tradingCurrency.id())).formatMoney(m_tradingCurrency.tradingSymbol(), prec));
  } else {
    setText(COLUMN_VALUE_INDEX, "---");
  }

  //column 3 (COLUMN_QUANTITY_INDEX) is the quantity of shares owned
  prec = MyMoneyMoney::denomToPrec(security.smallestAccountFraction());
  setText(COLUMN_QUANTITY_INDEX, file->balance(m_account.id()).formatMoney("", prec));

  //column 4 is the current price
  // Get the price precision from the configuration
  prec = KMyMoneyGlobalSettings::pricePrecision();

  // prec = MyMoneyMoney::denomToPrec(m_tradingCurrency.smallestAccountFraction());
  if(price.isValid()) {
    setText(COLUMN_PRICE_INDEX, price.rate(m_tradingCurrency.id()).formatMoney(m_tradingCurrency.tradingSymbol(), prec));
  } else {
    setText(COLUMN_PRICE_INDEX, "---");
  }
}

KInvestmentListItem::~KInvestmentListItem()
{
}

// FIXME PRICE
#if 0
const TQString KInvestmentListItem::calculate1WeekGain(const equity_price_history& history)
{
  return calculateGain(history, -7, 0, false, bColumn6Negative);
}

const TQString KInvestmentListItem::calculate4WeekGain(const equity_price_history& history)
{
  return calculateGain(history, -28, 0, false, bColumn7Negative);
}

const TQString KInvestmentListItem::calculate3MonthGain(const equity_price_history& history)
{
  return calculateGain(history, 0, -3, false, bColumn8Negative);
}

const TQString KInvestmentListItem::calculateYTDGain(const equity_price_history& history)
{
  return calculateGain(history, 0, 0, true, bColumn9Negative);
}

const TQString KInvestmentListItem::calculateGain(const equity_price_history& history, int dayDifference, int monthDifference, bool YTD, bool& bNegative)
{
  bNegative = false;
  if(history.isEmpty())
  {
    return TQString("0.0%");
  }
  else
  {
    bool bFoundCurrent = false, bFoundComparison = false;
    TQDate tempDate, comparisonDate = TQDate::currentDate();

    if(YTD)
    {
      //if it is YTD, set the date to 01/01/<current year>
      comparisonDate.setYMD(comparisonDate.year(), 1, 1);
    }
    else
    {
      comparisonDate = comparisonDate.addDays(dayDifference);
      comparisonDate = comparisonDate.addMonths(monthDifference);
    }

    MyMoneyMoney comparisonValue, currentValue;

    //find the current value, or closest to the current value.
    equity_price_history::ConstIterator itToday = history.end();
    for(tempDate = TQDate::currentDate(); tempDate >= comparisonDate; )
    {
      itToday = history.find(tempDate);
      if(itToday != history.end())
      {
        currentValue = itToday.data();
        bFoundCurrent = true;
        break;
      }

      tempDate = tempDate.addDays(-1);
    }

    if(!bFoundCurrent)
    {
      return TQString("0.0%");
    }

    //find a date that is closest to a week old, not older, and not today's date.  Because its a TQMap, this map
    //should already be sorted earliest to latest.
    for(equity_price_history::ConstIterator it = history.begin(); it != history.end(); ++it)
    {
      if(it.key() >= comparisonDate && it.key() < TQDate::currentDate())
      {
        comparisonDate = it.key();
        comparisonValue = it.data();
        bFoundComparison = true;
        break;
      }
    }

    if(!bFoundComparison)
    {
      return TQString("0.0%");
    }

    //tqDebug("Current date/value to use is %s/%s, Previous is %s/%s", tempDate.toString().data(), currentValue.toString().data(), comparisonDate.toString().data(), comparisonValue.toString().data());

    //compute the percentage difference
    if(comparisonValue != currentValue)
    {
      double result = (currentValue.toDouble() / comparisonValue.toDouble()) * 100.0;
      result -= 100.0;
      if(result < 0.0)
      {
        bNegative = true;
      }

      TQString ds = TQString("%1%").arg(result, 0, 'f', 3);
      return ds;

      /*MyMoneyMoney result = (currentValue / comparisonValue);
      result = result * 100;
      result = result - 100;
      tqDebug("final result = %s", result.toString().data());
      return TQString(result.formatMoney("", 3) + "%");*/
    }
  }
  return TQString("");
}
#endif

int KInvestmentListItem::compare(TQListViewItem* i, int col, bool ascending) const
{
  KInvestmentListItem* item = dynamic_cast<KInvestmentListItem*>(i);
  // do special sorting only for numeric columns
  // in all other cases use the standard sorting
  if(item) {
    switch(col) {
      case COLUMN_VALUE_INDEX:
      case COLUMN_QUANTITY_INDEX:
      case COLUMN_PRICE_INDEX:
      {
        bool inv1 = text(col) == "---";
        bool inv2 = item->text(col) == "---";
        if(!inv1 && !inv2) {
          MyMoneyMoney result = MyMoneyMoney(text(col)) - MyMoneyMoney(item->text(col));
          if(result.isNegative())
            return -1;
          if(result.isZero())
            return 0;
          return 1;
        } else if(inv1 && inv2) {
          return 0;
        } else if(inv1) {
          return -1;
        }
        return 1;
      }
      break;

      default:
        break;
    }
  }

  // do standard sorting here
  return TDEListViewItem::compare(i, col, ascending);
}

void KInvestmentListItem::paintCell(TQPainter * p, const TQColorGroup & cg, int column, int width, int align)
{
  bool bPaintRed = false;
  if((column == COLUMN_RAWGAIN_INDEX && bColumn5Negative) ||
     (column == COLUMN_1WEEKGAIN_INDEX && bColumn6Negative) ||
     (column == COLUMN_4WEEKGAIN_INDEX && bColumn7Negative) ||
     (column == COLUMN_3MONGAIN_INDEX && bColumn8Negative) ||
     (column == COLUMN_YTDGAIN_INDEX && bColumn9Negative))
  {
    bPaintRed = true;
  }

  p->save();

  TQColorGroup cg2(cg);

  if(isAlternate())
    cg2.setColor(TQColorGroup::Base, KMyMoneyGlobalSettings::listColor());
  else
    cg2.setColor(TQColorGroup::Base, KMyMoneyGlobalSettings::listBGColor());

#ifndef KMM_DESIGNER
  TQFont font = KMyMoneyGlobalSettings::listCellFont();
  // strike out closed accounts
  if(m_account.isClosed())
    font.setStrikeOut(true);

  p->setFont(font);
#endif

  if(bPaintRed)
  {
    TQColorGroup _cg( cg2);
    TQColor c = _cg.text();
    _cg.setColor(TQColorGroup::Text, TQt::red);
    TQListViewItem::paintCell(p, _cg, column, width, align);
    _cg.setColor(TQColorGroup::Text, c);
  }
  else
  {
    TQListViewItem::paintCell(p, cg2, column, width, align);
  }

  p->restore();
}
