///////////////////////////////////////////////////////////////////////////////
// Name:        src/generic/dbgrptg.cpp
// Purpose:     implementation of wxDebugReportPreviewStd
// Author:      Vadim Zeitlin, Andrej Putrin
// Modified by:
// Created:     2005-01-21
// RCS-ID:      $Id$
// Copyright:   (c) 2005 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// License:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/sizer.h"
    #include "wx/checklst.h"
    #include "wx/textctrl.h"
#endif // WX_PRECOMP

#if wxUSE_DEBUGREPORT

#include "wx/debugrpt.h"

#include "wx/intl.h"
#include "wx/filename.h"
#include "wx/ffile.h"
#include "wx/mimetype.h"

#include "wx/statline.h"
#include "wx/stattext.h"
#include "wx/filedlg.h"
#include "wx/valtext.h"

// ----------------------------------------------------------------------------
// wxDumpPreviewDlg: simple class for showing ASCII preview of dump files
// ----------------------------------------------------------------------------

class wxDumpPreviewDlg : public wxDialog
{
public:
    wxDumpPreviewDlg(wxWindow *parent,
                     const wxString& title,
                     const wxString& text);

private:
    // the text we show
    wxTextCtrl *m_text;

    DECLARE_NO_COPY_CLASS(wxDumpPreviewDlg)
};

wxDumpPreviewDlg::wxDumpPreviewDlg(wxWindow *parent,
                                   const wxString& title,
                                   const wxString& text)
                : wxDialog(parent, wxID_ANY, title,
                           wxDefaultPosition, wxDefaultSize,
                           wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
{
    // create controls
    // ---------------

    // use wxTE_RICH2 style to avoid 64kB limit under MSW and display big files
    // faster than with wxTE_RICH
    m_text = new wxTextCtrl(this, wxID_ANY, wxEmptyString,
                            wxPoint(0, 0), wxDefaultSize,
                            wxTE_MULTILINE |
                            wxTE_READONLY |
                            wxTE_NOHIDESEL |
                            wxTE_RICH2);
    m_text->SetValue(text);

    // use fixed-width font
    m_text->SetFont(wxFont(12, wxFONTFAMILY_TELETYPE,
                           wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL));

    wxButton *btnClose = new wxButton(this, wxID_CANCEL, _("Close"));


    // layout them
    // -----------

    wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL),
            *sizerBtns = new wxBoxSizer(wxHORIZONTAL);

    sizerBtns->Add(btnClose, 0, 0, 1);

    sizerTop->Add(m_text, 1, wxEXPAND);
    sizerTop->Add(sizerBtns, 0, wxALIGN_RIGHT | wxTOP | wxBOTTOM | wxRIGHT, 1);

    // set the sizer &c
    // ----------------

    // make the text window bigger to show more contents of the file
    sizerTop->SetItemMinSize(m_text, 600, 300);
    SetSizer(sizerTop);

    Layout();
    Fit();

    m_text->SetFocus();
}

// ----------------------------------------------------------------------------
// wxDumpOpenExternalDlg: choose a command for opening the given file
// ----------------------------------------------------------------------------

class wxDumpOpenExternalDlg : public wxDialog
{
public:
    wxDumpOpenExternalDlg(wxWindow *parent, const wxFileName& filename);

    // return the command chosed by user to open this file
    const wxString& GetCommand() const { return m_command; }

    wxString m_command;

private:
    void OnBrowse(wxCommandEvent& event);

    DECLARE_EVENT_TABLE()
    DECLARE_NO_COPY_CLASS(wxDumpOpenExternalDlg)
};

BEGIN_EVENT_TABLE(wxDumpOpenExternalDlg, wxDialog)
    EVT_BUTTON(wxID_MORE, wxDumpOpenExternalDlg::OnBrowse)
END_EVENT_TABLE()


wxDumpOpenExternalDlg::wxDumpOpenExternalDlg(wxWindow *parent,
                                             const wxFileName& filename)
                     : wxDialog(parent,
                                wxID_ANY,
                                wxString::Format
                                (
                                    _("Open file \"%s\""),
                                    filename.GetFullPath().c_str()
                                ))
{
    // create controls
    // ---------------

    wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
    sizerTop->Add(new wxStaticText(this, wxID_ANY,
                                   wxString::Format
                                   (
                                    _("Enter command to open file \"%s\":"),
                                    filename.GetFullName().c_str()
                                   )),
                  wxSizerFlags().Border());

    wxSizer *sizerH = new wxBoxSizer(wxHORIZONTAL);

    wxTextCtrl *command = new wxTextCtrl
                              (
                                this,
                                wxID_ANY,
                                wxEmptyString,
                                wxDefaultPosition,
                                wxSize(250, -1),
                                0,
                                wxTextValidator(wxFILTER_NONE, &m_command)
                              );
    sizerH->Add(command,
                    wxSizerFlags(1).Align(wxALIGN_CENTER_VERTICAL));
    wxButton *browse = new wxButton(this, wxID_MORE, wxT(">>"),
                                    wxDefaultPosition, wxDefaultSize,
                                    wxBU_EXACTFIT);
    sizerH->Add(browse,
                wxSizerFlags(0).Align(wxALIGN_CENTER_VERTICAL). Border(wxLEFT));

    sizerTop->Add(sizerH, wxSizerFlags(0).Expand().Border());

    sizerTop->Add(new wxStaticLine(this), wxSizerFlags().Expand().Border());

    sizerTop->Add(CreateStdDialogButtonSizer(wxOK | wxCANCEL),
                      wxSizerFlags().Align(wxALIGN_RIGHT).Border());

    // set the sizer &c
    // ----------------

    SetSizer(sizerTop);

    Layout();
    Fit();

    command->SetFocus();
}

void wxDumpOpenExternalDlg::OnBrowse(wxCommandEvent& )
{
    wxFileName fname(m_command);
    wxFileDialog dlg(this,
                     wxFileSelectorPromptStr,
                     fname.GetPathWithSep(),
                     fname.GetFullName()
#ifdef __WXMSW__
                     , _("Executable files (*.exe)|*.exe|All files (*.*)|*.*||")
#endif // __WXMSW__
                     );
    if ( dlg.ShowModal() == wxID_OK )
    {
        m_command = dlg.GetPath();
        TransferDataToWindow();
    }
}


// ----------------------------------------------------------------------------
// wxDebugReportDialog: class showing debug report to the user
// ----------------------------------------------------------------------------

class wxDebugReportDialog : public wxDialog
{
public:
    wxDebugReportDialog(wxDebugReport& dbgrpt);

    virtual bool TransferDataToWindow();
    virtual bool TransferDataFromWindow();

private:
    void OnView(wxCommandEvent& );
    void OnViewUpdate(wxUpdateUIEvent& );
    void OnOpen(wxCommandEvent& );


    // small helper: add wxEXPAND and wxALL flags
    static wxSizerFlags SizerFlags(int proportion)
    {
        return wxSizerFlags(proportion).Expand().Border();
    }


    wxDebugReport& m_dbgrpt;

    wxCheckListBox *m_checklst;
    wxTextCtrl *m_notes;

    wxArrayString m_files;

    DECLARE_EVENT_TABLE()
    DECLARE_NO_COPY_CLASS(wxDebugReportDialog)
};

// ============================================================================
// wxDebugReportDialog implementation
// ============================================================================

BEGIN_EVENT_TABLE(wxDebugReportDialog, wxDialog)
    EVT_BUTTON(wxID_VIEW_DETAILS, wxDebugReportDialog::OnView)
    EVT_UPDATE_UI(wxID_VIEW_DETAILS, wxDebugReportDialog::OnViewUpdate)
    EVT_BUTTON(wxID_OPEN, wxDebugReportDialog::OnOpen)
    EVT_UPDATE_UI(wxID_OPEN, wxDebugReportDialog::OnViewUpdate)
END_EVENT_TABLE()


// ----------------------------------------------------------------------------
// construction
// ----------------------------------------------------------------------------

wxDebugReportDialog::wxDebugReportDialog(wxDebugReport& dbgrpt)
                   : wxDialog(NULL, wxID_ANY,
                              wxString::Format(_("Debug report \"%s\""),
                              dbgrpt.GetReportName().c_str()),
                              wxDefaultPosition,
                              wxDefaultSize,
                              wxDEFAULT_DIALOG_STYLE | wxTHICK_FRAME),
                     m_dbgrpt(dbgrpt)
{
    // upper part of the dialog: explanatory message
    wxString msg;
    msg << _("A debug report has been generated in the directory\n")
        << _T('\n')
        << _T("             \"") << dbgrpt.GetDirectory() << _T("\"\n")
        << _T('\n')
        << _("The report contains the files listed below. If any of these ")
        << _("files contain private information,\n")
        << _("please uncheck them and they will be removed from the report.\n")
        << _T('\n')
        << _("If you wish to suppress this debug report completely, please ")
        << _("choose the \"Cancel\" button,\n")
        << _("but be warned that it may hinder improving the program, so if\n")
        << _("at all possible please do continue with the report generation.\n")
        << _T('\n')
        << _("              Thank you and we're sorry for the inconvenience!\n")
        << _T("\n\n"); // just some white space to separate from other stuff

    const wxSizerFlags flagsFixed(SizerFlags(0));
    const wxSizerFlags flagsExpand(SizerFlags(1));
    const wxSizerFlags flagsExpand2(SizerFlags(2));

    wxSizer *sizerPreview =
        new wxStaticBoxSizer(wxVERTICAL, this, _("&Debug report preview:"));
    sizerPreview->Add(CreateTextSizer(msg), SizerFlags(0).Centre());

    // ... and the list of files in this debug report with buttons to view them
    wxSizer *sizerFileBtns = new wxBoxSizer(wxVERTICAL);
    sizerFileBtns->AddStretchSpacer(1);
    sizerFileBtns->Add(new wxButton(this, wxID_VIEW_DETAILS, _T("&View...")),
                        wxSizerFlags().Border(wxBOTTOM));
    sizerFileBtns->Add(new wxButton(this, wxID_OPEN, _T("&Open...")),
                        wxSizerFlags().Border(wxTOP));
    sizerFileBtns->AddStretchSpacer(1);

    m_checklst = new wxCheckListBox(this, wxID_ANY);

    wxSizer *sizerFiles = new wxBoxSizer(wxHORIZONTAL);
    sizerFiles->Add(m_checklst, flagsExpand);
    sizerFiles->Add(sizerFileBtns, flagsFixed);

    sizerPreview->Add(sizerFiles, flagsExpand2);


    // lower part of the dialog: notes field
    wxSizer *sizerNotes = new wxStaticBoxSizer(wxVERTICAL, this, _("&Notes:"));

    msg = _("If you have any additional information pertaining to this bug\n");
    msg << _("report, please enter it here and it will be joined to it:");

    m_notes = new wxTextCtrl(this, wxID_ANY, wxEmptyString,
                             wxDefaultPosition, wxDefaultSize,
                             wxTE_MULTILINE);

    sizerNotes->Add(CreateTextSizer(msg), flagsFixed);
    sizerNotes->Add(m_notes, flagsExpand);


    wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
    sizerTop->Add(sizerPreview, flagsExpand2);
    sizerTop->AddSpacer(5);
    sizerTop->Add(sizerNotes, flagsExpand);
    sizerTop->Add(CreateStdDialogButtonSizer(wxOK | wxCANCEL), flagsFixed);

    SetSizerAndFit(sizerTop);
    Layout();
    CentreOnScreen();
}

// ----------------------------------------------------------------------------
// data exchange
// ----------------------------------------------------------------------------

bool wxDebugReportDialog::TransferDataToWindow()
{
    // all files are included in the report by default
    const size_t count = m_dbgrpt.GetFilesCount();
    for ( size_t n = 0; n < count; n++ )
    {
        wxString name,
            desc;
        if ( m_dbgrpt.GetFile(n, &name, &desc) )
        {
            m_checklst->Append(name + _T(" (") + desc + _T(')'));
            m_checklst->Check(n);

            m_files.Add(name);
        }
    }

    return true;
}

bool wxDebugReportDialog::TransferDataFromWindow()
{
    // any unchecked files should be removed from the report
    const size_t count = m_checklst->GetCount();
    for ( size_t n = 0; n < count; n++ )
    {
        if ( !m_checklst->IsChecked(n) )
        {
            m_dbgrpt.RemoveFile(m_files[n]);
        }
    }

    // if the user entered any notes, add them to the report
    const wxString notes = m_notes->GetValue();
    if ( !notes.empty() )
    {
        // for now it's fixed, could make it configurable in the future...
        const wxChar *NOTES_FILE_NAME = _T("notes.txt");
        wxFileName fn(m_dbgrpt.GetDirectory(), NOTES_FILE_NAME);
        wxFFile file(fn.GetFullPath(), _T("w"));
        if ( file.IsOpened() && file.Write(notes) )
        {
            m_dbgrpt.AddFile(NOTES_FILE_NAME, _T("user notes"));
        }
    }

    return true;
}

// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------

void wxDebugReportDialog::OnView(wxCommandEvent& )
{
    const int sel = m_checklst->GetSelection();
    wxCHECK_RET( sel != -1, _T("invalid selection in OnView()") );

    wxFileName fn(m_dbgrpt.GetDirectory(), m_files[sel]);
    wxString str;

    wxFFile file(fn.GetFullPath());
    if ( file.IsOpened() && file.ReadAll(&str) )
    {
        wxDumpPreviewDlg dlg(this, m_files[sel], str);
        dlg.ShowModal();
    }
}

void wxDebugReportDialog::OnOpen(wxCommandEvent& )
{
    const int sel = m_checklst->GetSelection();
    wxCHECK_RET( sel != -1, _T("invalid selection in OnOpen()") );

    wxFileName fn(m_dbgrpt.GetDirectory(), m_files[sel]);

    // try to get the command to open this kind of files ourselves
    wxString command;
    wxFileType *
        ft = wxTheMimeTypesManager->GetFileTypeFromExtension(fn.GetExt());
    if ( ft )
    {
        command = ft->GetOpenCommand(fn.GetFullPath());
    }

    // if we couldn't, ask the user
    if ( command.empty() )
    {
        wxDumpOpenExternalDlg dlg(this, fn);
        if ( dlg.ShowModal() == wxID_OK )
        {
            // get the command chosen by the user and append file name to it

            // if we don't have place marker for file name in the command...
            wxString cmd = dlg.GetCommand();
            if ( cmd.find(_T('%')) == wxString::npos )
            {
                // ...add it
                cmd += _T(" \"%s\"");
            }

            command = wxFileType::ExpandCommand(cmd, fn.GetFullPath());
        }
    }

    if ( !command.empty() )
        ::wxExecute(command);
}

void wxDebugReportDialog::OnViewUpdate(wxUpdateUIEvent& event)
{
    int sel = m_checklst->GetSelection();
    if (sel >= 0)
    {
        wxFileName fn(m_dbgrpt.GetDirectory(), m_files[sel]);
        event.Enable(fn.FileExists());
    }
    else
        event.Enable(false);
}


// ============================================================================
// wxDebugReportPreviewStd implementation
// ============================================================================

bool wxDebugReportPreviewStd::Show(wxDebugReport& dbgrpt) const
{
    if ( !dbgrpt.GetFilesCount() )
        return false;

    wxDebugReportDialog dlg(dbgrpt);

    return dlg.ShowModal() == wxID_OK && dbgrpt.GetFilesCount() != 0;
}

#endif // wxUSE_DEBUGREPORT