/*
  Copyright (c) 2004-2016 The FlameRobin Development Team

  Permission is hereby granted, free of charge, to any person obtaining
  a copy of this software and associated documentation files (the
  "Software"), to deal in the Software without restriction, including
  without limitation the rights to use, copy, modify, merge, publish,
  distribute, sublicense, and/or sell copies of the Software, and to
  permit persons to whom the Software is furnished to do so, subject to
  the following conditions:

  The above copyright notice and this permission notice shall be included
  in all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

#include "wx/wxprec.h"

#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif //WX_PRECOMP

#include <wx/splitter.h>
#include <wx/stc/stc.h>

#include "statementHistory.h"
#include "config/Config.h"
#include "gui/StatementHistoryDialog.h"
#include "gui/StyleGuide.h"

StatementHistoryDialog::StatementHistoryDialog(wxWindow *parent,
    StatementHistory *history, const wxString& title)
    :BaseDialog(parent, -1, title), historyM(history),
     isSearchingM(false)
{
    wxBoxSizer *innerSizer = new wxBoxSizer(wxVERTICAL);
    wxBoxSizer *topSizer = new wxBoxSizer(wxHORIZONTAL);
    m_staticText2 = new wxStaticText(getControlsPanel(), wxID_ANY,
        _("Search for:"), wxDefaultPosition, wxDefaultSize, 0);
    topSizer->Add(m_staticText2, 0, wxALIGN_CENTER_VERTICAL|wxRIGHT,
        styleguide().getControlLabelMargin());

    textctrl_search = new wxTextCtrl(getControlsPanel(), wxID_ANY, "");
    button_search = new wxButton(getControlsPanel(), ID_button_search,
        _("&Search"));
    button_delete = new wxButton(getControlsPanel(), ID_button_delete,
        _("&Delete Selected"), wxDefaultPosition, wxDefaultSize, 0);
    topSizer->Add(textctrl_search, 1, wxRIGHT|wxALIGN_CENTER_VERTICAL,
        styleguide().getRelatedControlMargin(wxHORIZONTAL));
    topSizer->Add(button_search, 0, wxRIGHT|wxALIGN_CENTER_VERTICAL,
        styleguide().getUnrelatedControlMargin(wxHORIZONTAL));
    topSizer->Add(button_delete, 0, wxALIGN_CENTER_VERTICAL, 0);
    innerSizer->Add(topSizer, 0, wxEXPAND, 5);

    int gaugeHeight = wxSystemSettings::GetMetric(wxSYS_HSCROLL_Y);
    gauge_progress = new wxGauge(getControlsPanel(), wxID_ANY, 100,
        wxDefaultPosition, wxSize(100, gaugeHeight),
        wxGA_HORIZONTAL | wxGA_SMOOTH);
    innerSizer->Add(gauge_progress, 0, wxTOP|wxEXPAND,
        styleguide().getRelatedControlMargin(wxVERTICAL));

    mainSplitter = new wxSplitterWindow( getControlsPanel(), wxID_ANY, wxDefaultPosition, wxDefaultSize, wxSP_3D );
    leftSplitterPanel = new wxPanel( mainSplitter, wxID_ANY, wxDefaultPosition, wxSize(100, 1), wxTAB_TRAVERSAL );
    wxBoxSizer* leftSplitterSizer = new wxBoxSizer( wxVERTICAL );

    leftSplitterPanel->SetSizer( leftSplitterSizer );
    rightSplitterPanel = new wxPanel( mainSplitter, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL );
    wxBoxSizer* rightSplitterSizer = new wxBoxSizer( wxVERTICAL );
    rightSplitterPanel->SetSizer( rightSplitterSizer );

    mainSplitter->SplitVertically( leftSplitterPanel, rightSplitterPanel, 0 );

    listbox_search = new wxListBox(leftSplitterPanel, ID_listbox_search,
        wxDefaultPosition, wxDefaultSize, 0, NULL, wxLB_MULTIPLE);
    leftSplitterSizer->Add(listbox_search, 1, wxTOP|wxEXPAND,
        styleguide().getRelatedControlMargin(wxVERTICAL));
    dateTimeTextM = new wxStaticText(leftSplitterPanel, wxID_ANY,
        _("Date and time of selected item"), wxDefaultPosition, wxDefaultSize, 0);
    leftSplitterSizer->Add(dateTimeTextM, 0, wxTOP|wxEXPAND,
        styleguide().getRelatedControlMargin(wxVERTICAL));

    textctrl_statement = new wxStyledTextCtrl(rightSplitterPanel, wxID_ANY,
        wxDefaultPosition, wxDefaultSize, wxBORDER_THEME);
    textctrl_statement->SetWrapMode(wxSTC_WRAP_WORD);
    textctrl_statement->SetMarginWidth(1, 0);  // turn off the folding margin
    textctrl_statement->StyleSetForeground(1, *wxWHITE);
    textctrl_statement->StyleSetBackground(1, *wxRED);
    textctrl_statement->SetText(_("Selected SQL statement"));
    rightSplitterSizer->Add(textctrl_statement, 1, wxTOP|wxEXPAND,
        styleguide().getRelatedControlMargin(wxVERTICAL));

    leftSplitterPanel->Layout();
    leftSplitterSizer->Fit( leftSplitterPanel );
    rightSplitterPanel->Layout();
    rightSplitterSizer->Fit( rightSplitterPanel );
    innerSizer->Add( mainSplitter, 1, wxEXPAND, 0 );

    button_copy = new wxButton(getControlsPanel(), ID_button_copy,
        _("C&opy Selection To Editor"), wxDefaultPosition, wxDefaultSize, 0);
    button_cancel = new wxButton(getControlsPanel(), wxID_CANCEL,
        _("&Cancel"), wxDefaultPosition, wxDefaultSize, 0);

    wxSizer* sizerButtons = styleguide().createButtonSizer(
        button_copy, button_cancel);

    // use method in base class to set everything up
    layoutSizers(innerSizer, sizerButtons, true);

    // TODO: size(32, 32) missing for HISTORY icon
    #include "history.xpm"
    wxBitmap bmp = wxBitmap(history_xpm);
    wxIcon icon;
    icon.CopyFromBitmap(bmp);
    SetIcon(icon);

    button_search->SetDefault();
    button_copy->Enable(false);
    button_delete->Enable(false);
    textctrl_search->SetFocus();
    // center on parent
    SetSize(620, 400);
    Centre();
}

void StatementHistoryDialog::setSearching(bool searching)
{
    isSearchingM = searching;
    if (searching)
    {
        button_delete->Enable(false);
        button_copy->Enable(false);
        button_search->SetLabel(_("&Stop"));
    }
    else
        button_search->SetLabel(_("&Search"));
}

BEGIN_EVENT_TABLE(StatementHistoryDialog, BaseDialog)
    EVT_BUTTON(StatementHistoryDialog::ID_button_search,
        StatementHistoryDialog::OnButtonSearchClick)
    EVT_BUTTON(StatementHistoryDialog::ID_button_delete,
        StatementHistoryDialog::OnButtonDeleteClick)
    EVT_BUTTON(StatementHistoryDialog::ID_button_copy,
        StatementHistoryDialog::OnButtonCopyClick)
    EVT_LISTBOX(StatementHistoryDialog::ID_listbox_search,
        StatementHistoryDialog::OnListBoxSelect)
    EVT_LISTBOX_DCLICK(StatementHistoryDialog::ID_listbox_search,
        StatementHistoryDialog::OnListBoxSearchDoubleClick)
END_EVENT_TABLE()

void StatementHistoryDialog::OnListBoxSelect(wxCommandEvent& WXUNUSED(event))
{
    wxArrayInt sels;
    bool hasSelection = (listbox_search->GetSelections(sels) > 0);
    button_copy->Enable(hasSelection);
    button_delete->Enable(hasSelection);

    textctrl_statement->ClearAll();
    if (!hasSelection)
        return;

    for (size_t i=0; i<sels.GetCount(); ++i)
    {
        StatementHistory::Position p = (StatementHistory::Position)
            listbox_search->GetClientData(sels.Item(i));
        textctrl_statement->AddText(historyM->get(p) + "\n");
        if (i == 0)
        {
            dateTimeTextM->SetLabel(historyM->getDateTime(p).Format(
                "%Y-%m-%d %H:%M:%S"));
        }
    }

    wxString searchString = textctrl_search->GetValue().Upper();
    if (searchString.IsEmpty())
        return;

    wxString sql(textctrl_statement->GetText().Upper());

    int p = -1;
    while (true)
    {
        p = sql.find(searchString, p+1);
        if (p == int(wxString::npos))
            break;
        textctrl_statement->StartStyling(p, 0);
        textctrl_statement->SetStyling(searchString.Length(), 1);
    }
}

void StatementHistoryDialog::OnButtonSearchClick(wxCommandEvent&
    WXUNUSED(event))
{
    if (isSearchingM)
    {
        setSearching(false);
        return;
    }

    // start the search
    listbox_search->Clear();
    wxString searchString = textctrl_search->GetValue().Upper();
    setSearching(true);
    StatementHistory::Position total = historyM->size();
    gauge_progress->SetRange((int)total);
    wxString last = wxEmptyString;
    for (StatementHistory::Position p = total - 1; (int)p >= 0; --p)
    {
        wxYield();
        if (!isSearchingM)
        {
            gauge_progress->SetValue(0);
            return;
        }

        gauge_progress->SetValue((int)(total - p - 1));
        wxString s(historyM->get(p));
        if (s == last)  // ignore duplicates
            continue;
        last = s;
        if (searchString.IsEmpty() || s.Upper().Contains(searchString))
        {
            wxString entry;
            entry = (s.Length() > 200) ? s.Mid(0, 200) + "..." : s;
            entry.Replace("\n", " ");
            entry.Replace("\r", wxEmptyString);
            listbox_search->Append(entry, (void *)p);
        }
    }
    setSearching(false);
    gauge_progress->SetValue(0);
}

void StatementHistoryDialog::OnButtonDeleteClick(wxCommandEvent&
    WXUNUSED(event))
{
    wxArrayInt temp;
    if (listbox_search->GetSelections(temp) == 0)
    {
        wxMessageBox(_("Please select items you wish to delete"),
            _("Nothing is selected"),
            wxOK|wxICON_WARNING);
        return;
    }
    wxBusyCursor b;
    std::vector<StatementHistory::Position> vect;
    for (size_t i=0; i<temp.GetCount(); ++i)
    {
        vect.push_back(
            (StatementHistory::Position)listbox_search->GetClientData(
            temp.Item(i)));
    }
    historyM->deleteItems(vect);

    for (size_t i=temp.GetCount()-1; (int)i >= 0; --i)
        listbox_search->Delete(temp.Item(i));
}

void StatementHistoryDialog::OnButtonCopyClick(wxCommandEvent& WXUNUSED(event))
{
    wxArrayInt temp;
    if (listbox_search->GetSelections(temp) == 0)
        return;

    sqlM.clear();
    for (size_t i=0; i<temp.GetCount(); ++i)
    {
        sqlM += historyM->get(
            (StatementHistory::Position)listbox_search->GetClientData(
                temp.Item(i)))
            + "\n";
    }
    EndModal(wxID_OK);
}

void StatementHistoryDialog::OnListBoxSearchDoubleClick(wxCommandEvent& event)
{
    StatementHistory::Position item =
        (StatementHistory::Position)event.GetClientData();
    if ((int)item < 0)
        return;
    sqlM = historyM->get(item);
    EndModal(wxID_OK);
}

wxString StatementHistoryDialog::getSql() const
{
    return sqlM;
}

