/*!********************************************************************
 Audacity: A Digital Audio Editor

 @file UpdatePopupDialog.cpp
 @brief Define a dialog for notifying users about new version available.

 Anton Gerasimov
 **********************************************************************/

#include "UpdatePopupDialog.h"
#include "UpdateManager.h"

#include "ShuttleGui.h"
#include "HelpSystem.h"

#include <wx/debug.h>
#include <wx/sstream.h>
#include <wx/txtstrm.h>
#include <wx/display.h>

enum { DontShowID = wxID_HIGHEST + 1 };

BEGIN_EVENT_TABLE (UpdatePopupDialog, wxDialogWrapper)
    EVT_BUTTON (wxID_YES, UpdatePopupDialog::OnUpdate)
    EVT_BUTTON (wxID_NO, UpdatePopupDialog::OnSkip)
    EVT_CHECKBOX (DontShowID, UpdatePopupDialog::OnDontShow)
END_EVENT_TABLE()

IMPLEMENT_CLASS (UpdatePopupDialog, wxDialogWrapper)

UpdatePopupDialog::UpdatePopupDialog (wxWindow* parent, const VersionPatch& versionPatch, bool configurableNotification)
    : wxDialogWrapper (parent, -1, XC("Update Audacity", "update dialog"),
        wxDefaultPosition, wxDefaultSize,
        wxCAPTION),
      mVersionPatch(versionPatch)
{
    ShuttleGui S (this, eIsCreating);
    S.SetBorder (5);
    S.StartVerticalLay (wxEXPAND, 1);
    {
        S.AddWindow (AddHtmlContent (S.GetParent()));

        S.StartHorizontalLay (wxEXPAND, 0);
        {
            S.SetBorder (5);

            if (configurableNotification)
            {
                S.Id(DontShowID).AddCheckBox(
                    XO("Don't show this again at start up"),
                    !DefaultUpdatesCheckingFlag->Read());
            }

            S.Prop(1).AddSpace(1, 0, 1);

            S.Id (wxID_NO).AddButton (XC ("&Skip", "update dialog"));
            S.Id (wxID_YES).AddButton (XC("&Install update", "update dialog"));

            S.SetBorder (5);
        }
        S.EndHorizontalLay();
    }
    S.EndVerticalLay();

    Layout();
    Fit();
    Center();

    wxSize sz = GetSize();
    const auto maxHeight = std::max(1, wxDisplay().GetGeometry().GetHeight() - 100);
    const auto minHeight = std::min({ sz.y, 600, maxHeight });
    SetSizeHints(sz.x, minHeight, wxDefaultCoord, maxHeight);
}

UpdatePopupDialog::~UpdatePopupDialog()
{
    ;
}

void UpdatePopupDialog::OnUpdate (wxCommandEvent&)
{
    EndModal (wxID_YES);
}

void UpdatePopupDialog::OnSkip (wxCommandEvent&)
{
    EndModal (wxID_NO);
}

void UpdatePopupDialog::OnDontShow (wxCommandEvent& event)
{
    DefaultUpdatesCheckingFlag->Write(!event.IsChecked());
}

HtmlWindow* UpdatePopupDialog::AddHtmlContent (wxWindow* parent)
{
    wxStringOutputStream o;
    wxTextOutputStream informationStr (o);

#if AUDACITY_BUILD_LEVEL == 0
    const auto versionPostfix = " Alpha";
#elif AUDACITY_BUILD_LEVEL == 1
    const auto versionPostfix = " Beta";
#else
    const auto versionPostfix = "";
#endif

    informationStr
        << wxT("<html><body><h3>")
        // i18n-hint Substitution of version number for %s.
                   << XC("Audacity %s is available!", "update dialog")
                         .Format(
                            mVersionPatch.version.GetString() + versionPostfix)
                         .Translation()
        << wxT("</h3>");

    // Display description if available
    if (!mVersionPatch.description.IsEmpty())
    {
        informationStr << wxT("<p>") << mVersionPatch.description << wxT("</p>");
    }

    informationStr << wxT("<h5>")
        << XC("Changelog", "update dialog")
        << wxT("</h5><p>");

    informationStr << wxT("<ul>");
    for (const auto& item : mVersionPatch.changelog)
    {
        informationStr << wxT("<li>");

        // Display version if present
        if (!item.version.IsEmpty())
        {
            informationStr << wxT("<b>From ") << item.version << wxT(":</b> ");
        }

        // Display changelog text
        informationStr << item.text;
        informationStr << wxT("</li>");
    }
    informationStr << wxT("</ul></p>");

    informationStr << wxT("<p>");
    wxString releaseUrl = mVersionPatch.releaseNotesUrl.IsEmpty()
        ? wxString("https://github.com/audacity/audacity/releases")
        : mVersionPatch.releaseNotesUrl;
    informationStr << wxT("<a href = \"") << releaseUrl << wxT("\">");
    informationStr << XC("Read more on GitHub", "update dialog");
    informationStr << wxT("</a>");
    informationStr << wxT("</p>");

    informationStr << wxT("</body></html>");

    HtmlWindow* html = safenew LinkingHtmlWindow (parent, -1,
        wxDefaultPosition,
        wxSize (500, -1),
        wxHW_SCROLLBAR_AUTO );

    html->SetBorders (20);
    html->SetPage (o.GetString());

    wxHtmlContainerCell* cell = html->GetInternalRepresentation();

    cell->Layout (500);

    const wxSize size = wxSize (500, cell->GetHeight());

    html->SetMinSize (size);
    html->SetMaxSize (size);
    html->SetSize (size);

    return html;
}
