/*
Copyright 2010 Grégory Soutadé

This file is part of KissCount.

KissCount 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.

KissCount 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 KissCount.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "AccountPanel.h"

enum {SEARCH_ID, GRID_ID, CALENDAR_FROM_ID, CALENDAR_TO_ID};

BEGIN_EVENT_TABLE(SearchPanel, wxPanel)
EVT_BUTTON(SEARCH_ID, SearchPanel::OnButtonSearch)
EVT_CALENDAR_SEL_CHANGED(CALENDAR_FROM_ID, SearchPanel::OnCalendarFromChange)
EVT_CALENDAR_SEL_CHANGED(CALENDAR_TO_ID, SearchPanel::OnCalendarToChange)
EVT_GRID_CMD_CELL_CHANGE(GRID_ID, SearchPanel::OnOperationModified)
EVT_SHOW(SearchPanel::OnShow)
END_EVENT_TABLE()

#define SET_ROW_COLOR(row, color)  for(int i=0; i<NUMBER_COLS_OPS; i++)	\
    {									\
      _grid->SetCellBackgroundColour(row, i, color);			\
    }

SearchPanel::SearchPanel(KissCount* kiss, wxUI *parent) : wxScrolledWindow(&(*parent)), _kiss(kiss), _wxUI(parent), _operations(NULL)
{
  DEFAULT_FONT(font);
  User* user = _kiss->GetUser();
  std::vector<Account>::iterator accountIt;
  std::vector<Category>::iterator categoryIt;

  wxBoxSizer *vbox = new wxBoxSizer(wxVERTICAL);
  SetSizer(vbox);

  _checkDateFrom = new wxCheckBox(this, wxID_ANY, _("Date from"));
  _checkDateTo = new wxCheckBox(this, wxID_ANY, _("Date to"));

  wxGridBagSizer *gridBagSizer = new wxGridBagSizer(3, 9);

  _calendarFrom = new wxCalendarCtrl(this, CALENDAR_FROM_ID, wxDefaultDateTime, wxDefaultPosition, wxDefaultSize, 
  				 wxCAL_MONDAY_FIRST);
  _calendarTo = new wxCalendarCtrl(this, CALENDAR_TO_ID, wxDefaultDateTime, wxDefaultPosition, wxDefaultSize, 
  				 wxCAL_MONDAY_FIRST);

  
  _description = new wxTextCtrl(this, wxID_ANY);
  wxSize size = _description->GetSize();
  size.SetWidth(size.GetWidth()*2);
  _description->SetMinSize(size);
  _amountFrom = new wxTextCtrl(this, wxID_ANY);
  _amountTo = new wxTextCtrl(this, wxID_ANY);

  _category = new wxCheckListBox(this, wxID_ANY);
  for(categoryIt = user->_categories.begin(); categoryIt != user->_categories.end(); categoryIt++)
    _category->Append(categoryIt->name);
  _account = new wxCheckListBox(this, wxID_ANY);
  for(accountIt = user->_accounts.begin(); accountIt != user->_accounts.end(); accountIt++)
    _account->Append(accountIt->name);

  _searchButton = new wxButton(this, SEARCH_ID, _("Search"));

  wxStaticText* labelDescription = new wxStaticText(this, wxID_ANY, _("Description"));
  wxStaticText* labelAmountFrom = new wxStaticText(this, wxID_ANY, _("Amount from"));
  wxStaticText* labelAmountTo = new wxStaticText(this, wxID_ANY, _("Amount to"));
  wxStaticText* labelCategory = new wxStaticText(this, wxID_ANY, _("Category"));
  wxStaticText* labelAccount = new wxStaticText(this, wxID_ANY, _("Account"));

  gridBagSizer->Add(labelDescription, wxGBPosition(0, 0));
  gridBagSizer->Add(_description, wxGBPosition(1, 0));
  gridBagSizer->Add(_checkDateFrom, wxGBPosition(0, 1));
  gridBagSizer->Add(_calendarFrom, wxGBPosition(1, 1));
  gridBagSizer->Add(_checkDateTo, wxGBPosition(0, 2));
  gridBagSizer->Add(_calendarTo, wxGBPosition(1, 2));
  gridBagSizer->Add(labelAmountFrom, wxGBPosition(0, 3));
  gridBagSizer->Add(_amountFrom, wxGBPosition(1, 3));
  gridBagSizer->Add(labelAmountTo, wxGBPosition(0, 4));
  gridBagSizer->Add(_amountTo, wxGBPosition(1, 4));
  gridBagSizer->Add(labelCategory, wxGBPosition(0, 5));
  gridBagSizer->Add(_category, wxGBPosition(1, 5));
  gridBagSizer->Add(labelAccount, wxGBPosition(0, 6));
  gridBagSizer->Add(_account, wxGBPosition(1, 6));
  gridBagSizer->Add(_searchButton, wxGBPosition(2, 0));

  vbox->Add(gridBagSizer);
  vbox->Add(-1, 20);

  _grid = new GridAccount(_kiss, this, GRID_ID);

  vbox->Add(_grid);

  Fit();

  SetMinSize(wxSize(1024, 640));
  SetScrollbars(10, 10, 100/10, 100/10);

  Hide();
}

SearchPanel::~SearchPanel()
{
  if (_operations) delete _operations;
}

void SearchPanel::OnButtonSearch(wxCommandEvent& event)
{
  wxString *description=NULL, *amountFrom=NULL, *amountTo=NULL;
  std::vector<wxString> categories, accounts;
  wxDateTime *dateFrom=NULL, *dateTo=NULL;
  User* user= _kiss->GetUser();
  int i;
  std::vector<Operation>::iterator it;
  double af, at;

  if (_calendarFrom->GetDate() > _calendarTo->GetDate())
    {
      wxMessageBox(_("Invalid date range"), _("Error"), wxICON_ERROR | wxOK);      
      return;
    }

  if (_amountFrom->GetLineText(0) != wxT(""))
    {
      amountFrom = new wxString;
      *amountFrom = _amountFrom->GetLineText(0);
      if (!amountFrom->ToDouble(&af))
	{
	  wxMessageBox(_("Invalid amount from"), _("Error"), wxICON_ERROR | wxOK);      
	  delete amountFrom;
	  return;
	}
    }

  if (_amountTo->GetLineText(0) != wxT(""))
    {
      amountTo = new wxString;
      *amountTo = _amountTo->GetLineText(0);
      if (!amountTo->ToDouble(&at))
	{
	  wxMessageBox(_("Invalid amount to"), _("Error"), wxICON_ERROR | wxOK);
	  delete amountFrom;
	  delete amountTo;
	  return;
	}
    }

  if (amountFrom && amountTo && af > at)
    {
      wxMessageBox(_("Invalid amount range"), _("Error"), wxICON_ERROR | wxOK);
      delete amountFrom;
      delete amountTo;
      return;
    }

  _grid->DeleteRows(1, _grid->GetNumberRows()-1);

  if (_description->GetLineText(0) != wxT(""))
    {
      description = new wxString;
      *description = _description->GetLineText(0);
    }

  if (_checkDateFrom->IsChecked())
    {
      dateFrom = new wxDateTime;
      *dateFrom = _calendarFrom->GetDate();
    }

  if (_checkDateTo->IsChecked())
    {
      dateTo = new wxDateTime;
      *dateTo = _calendarTo->GetDate();
    }

  if (dateFrom && dateTo && *dateFrom > *dateTo)
    {
      ;
    }

  for(i=0; i<user->GetCategoriesNumber(); i++)
    if (_category->IsChecked(i))
      categories.push_back(user->_categories[i].id);

  for(i=0; i<user->GetAccountsNumber(); i++)
    if (_account->IsChecked(i))
      accounts.push_back(user->_accounts[i].id);

  if (_operations) 
    delete _operations;

  _operations = _kiss->Search(description, dateFrom, dateTo, amountFrom, amountTo, categories, accounts);

  if (_operations->size() > 1)
    wxMessageBox(wxString::Format(wxT("%d"), _operations->size()) + _(" entries found"), wxT("KissCount"), wxICON_INFORMATION | wxOK);
  else if (_operations->size() == 1)
    wxMessageBox(_("1 entry found"), wxT("KissCount"), wxICON_INFORMATION | wxOK);
  else
    {
      wxMessageBox(_("No entry found"), wxT("KissCount"), wxICON_INFORMATION | wxOK);
      return;
    }

  for(i=1, it = _operations->begin(); it != _operations->end(); it++, i++)
    {
      _grid->InsertOperation(user, &(*it), i, false, 0, 0);
    }

  _grid->AutoSizeColumn(CATEGORY, false);
  _grid->AutoSizeColumn(DATE, false);
  _grid->AutoSizeColumn(ACCOUNT, false);
  _grid->AutoSizeColumn(DELETE, false);
  _grid->AutoSizeColumn(CHECKED, false);

  _wxUI->Layout();
}

void SearchPanel::OnShow(wxShowEvent& event)
{
  _wxUI->SetTitle(_kiss->GetUser()->_name + wxT(" - ") + _("Search"));
}

void SearchPanel::OnCalendarFromChange(wxCalendarEvent& event)
{
  _checkDateFrom->SetValue(true);
}

void SearchPanel::OnCalendarToChange(wxCalendarEvent& event)
{
  _checkDateTo->SetValue(true);
}

void SearchPanel::OnOperationModified(wxGridEvent& event)
{
  User* user = _kiss->GetUser();
  int row = event.GetRow()-1;
  int col = event.GetCol();
  Operation new_op, cur_op;
  int op_complete = 6;
  wxString value ;
  wxDateTime date;
  static bool inModification = false ;
  wxColour color ;
  unsigned char r, g, b;

  // Avoid recursives calls
  if (inModification) return;

  inModification = true ;
    
  if (event.GetCol() == DEBIT)
    _grid->SetCellValue(event.GetRow(), CREDIT, wxT(""));
  else if (event.GetCol() == CREDIT)
    _grid->SetCellValue(event.GetRow(), DEBIT, wxT(""));

  value = _grid->GetCellValue(event.GetRow(), DESCRIPTION);
  if (value != wxT(""))
    {
      new_op.description = value;
      op_complete--;
    }

  value = _grid->GetCellValue(event.GetRow(), DATE);
  if (value != wxT(""))
    {
      date.ParseFormat(value, wxT("%d/%m/%Y"));
      new_op.day = date.GetDay()-1;
      new_op.month = date.GetMonth();
      new_op.year = date.GetYear();
      op_complete--;
    }
  
  value = _grid->GetCellValue(event.GetRow(), DEBIT);
  if (value != wxT(""))
    {
      value.ToDouble(&new_op.amount);
      new_op.amount *= -1.0;
      op_complete--;
    }

  value = _grid->GetCellValue(event.GetRow(), CREDIT);
  if (value != wxT(""))
    {
      value.ToDouble(&new_op.amount);
      op_complete--;
    }

  value = _grid->GetCellValue(event.GetRow(), CATEGORY);
  if (value != wxT(""))
    {
      new_op.category = user->GetCategoryId(value);
      op_complete--;
    }

  value = _grid->GetCellValue(event.GetRow(), ACCOUNT);
  if (value != wxT(""))
    {
      new_op.account = user->GetAccountId(value);
      op_complete--;
    }

  value = _grid->GetCellValue(event.GetRow(), CHECKED);
  if (value != wxT("") && value != wxT("0"))
    new_op.checked = true;
  else
    new_op.checked = false;
  op_complete--;

  if (col == CHECKED || col == CATEGORY)
    {
      color = user->GetCategory(new_op.category).color;

      if (new_op.checked)
	{
	  r = ((color.Red()*1.5) >= 0xFF) ? 0xFF : color.Red()*1.5 ; 
	  g = ((color.Green()*1.5) >= 0xFF) ? 0xFF : color.Green()*1.5 ; 
	  b = ((color.Blue()*1.5) >= 0xFF) ? 0xFF : color.Blue()*1.5 ; 
	  color.Set(r, g, b, color.Alpha());
	}

      SET_ROW_COLOR(event.GetRow(), color);
    }

  if (col == DELETE)
    {
      wxMessageDialog dialog(_wxUI, _("Are you sure want to delete : \n")+new_op.description, wxT("KissCount"), wxYES_NO);
      if (dialog.ShowModal() == wxID_NO)
	{
	  _grid->SetCellValue(event.GetRow(), event.GetCol(), wxT("0"));
	  _wxUI->NeedReload();
	  inModification = false;
	  return;
	}
    }

  // Modify an operation
  cur_op = (*_operations)[row] ;
  new_op.id = cur_op.id;
  new_op.fix_cost = false;

  if (col == DELETE)
    {
      _grid->DeleteRows(event.GetRow(), 1);
      _kiss->DeleteOperation(cur_op);
      _operations->erase(_operations->begin()+row);
      _wxUI->NeedReload();
      inModification = false ;
      return ;
    }

  (*_operations)[row] = new_op;
  _kiss->UpdateOperation(new_op);

  _wxUI->NeedReload();

  inModification = false ;
}