/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <about.hxx>

#include <osl/process.h>     //osl_getProcessLocale
#include <sal/log.hxx>       //SAL_WARN
#include <vcl/settings.hxx>  //GetSettings
#include <vcl/svapp.hxx>     //Application::
#include <vcl/virdev.hxx>    //VirtualDevice
#include <vcl/weld.hxx>
#include <unotools/resmgr.hxx> //Translate

#include <config_buildid.h> //EXTRA_BUILDID
#include <config_features.h>
#include <dialmgr.hxx>      //CuiResId
#include <i18nlangtag/languagetag.hxx>
#include <sfx2/app.hxx> //SfxApplication::loadBrandSvg
#include <strings.hrc>
#include <svtools/langhelp.hxx>
#include <unotools/bootstrap.hxx> //utl::Bootstrap::getBuildIdData
#include <unotools/configmgr.hxx> //ConfigManager::

#include <com/sun/star/datatransfer/clipboard/SystemClipboard.hpp>
#include <vcl/unohelp2.hxx>

#include <config_feature_opencl.h>
#if HAVE_FEATURE_OPENCL
#include <opencl/openclwrapper.hxx>
#endif
#include <officecfg/Office/Calc.hxx>
#include <officecfg/Office/Common.hxx>

using namespace ::com::sun::star::uno;

AboutDialog::AboutDialog(weld::Window *pParent)
    : GenericDialogController(pParent, "cui/ui/aboutdialog.ui", "AboutDialog"),
      m_pCreditsButton(m_xBuilder->weld_link_button("btnCredits")),
      m_pWebsiteButton(m_xBuilder->weld_link_button("btnWebsite")),
      m_pReleaseNotesButton(m_xBuilder->weld_link_button("btnReleaseNotes")),
      m_pCloseButton(m_xBuilder->weld_button("btnClose")),
      m_pCopyButton(m_xBuilder->weld_button("btnCopyVersion")),
      m_pBrandImage(m_xBuilder->weld_image("imBrand")),
      m_pAboutImage(m_xBuilder->weld_image("imAbout")),
      m_pVersionLabel(m_xBuilder->weld_label("lbVersionString")),
      m_pBuildCaption(m_xBuilder->weld_label("lbBuild")),
      m_pBuildLabel(m_xBuilder->weld_link_button("lbBuildString")),
      m_pEnvLabel(m_xBuilder->weld_label("lbEnvString")),
      m_pUILabel(m_xBuilder->weld_label("lbUIString")),
      m_pLocaleLabel(m_xBuilder->weld_label("lbLocaleString")),
      m_pMiscLabel(m_xBuilder->weld_label("lbMiscString")),
      m_pCopyrightLabel(m_xBuilder->weld_label("lbCopyright")) {

  // Labels
  m_pVersionLabel->set_label(GetVersionString());

  OUString sbuildId = GetBuildString();
  if (IsStringValidGitHash(sbuildId)) {
    const tools::Long nMaxChar = 25;
    m_pBuildLabel->set_uri("https://gerrit.libreoffice.org/gitweb?p=core.git;a=log;h="
                           + sbuildId);
    m_pBuildLabel->set_label(sbuildId.getLength() > nMaxChar ? sbuildId.replaceAt(
                                 nMaxChar, sbuildId.getLength() - nMaxChar, "...")
                                                             : sbuildId);
  } else {
    m_pBuildCaption->hide();
    m_pBuildLabel->hide();
  }

  m_pEnvLabel->set_label(Application::GetHWOSConfInfo(1));
  m_pUILabel->set_label(Application::GetHWOSConfInfo(2));
  m_pLocaleLabel->set_label(GetLocaleString());
  m_pMiscLabel->set_label(GetMiscString());
  m_pCopyrightLabel->set_label(GetCopyrightString());

  // Images
  const tools::Long nWidth(m_pCopyrightLabel->get_preferred_size().getWidth());
  BitmapEx aBackgroundBitmap;

  bool bIsDark = Application::GetSettings().GetStyleSettings().GetDialogColor().IsDark();

  if (SfxApplication::loadBrandSvg(bIsDark ? "shell/logo_inverted" : "shell/logo", aBackgroundBitmap, nWidth * 0.8)) {
    ScopedVclPtr<VirtualDevice> m_pVirDev =
        m_pBrandImage->create_virtual_device();
    m_pVirDev->SetOutputSizePixel(aBackgroundBitmap.GetSizePixel());
    m_pVirDev->DrawBitmapEx(Point(0, 0), aBackgroundBitmap);
    m_pBrandImage->set_image(m_pVirDev.get());
    m_pVirDev.disposeAndClear();
  }
  if (SfxApplication::loadBrandSvg(bIsDark ? "shell/about_inverted" : "shell/about", aBackgroundBitmap, nWidth * 0.9)) {
    ScopedVclPtr<VirtualDevice> m_pVirDev =
        m_pAboutImage->create_virtual_device();
    m_pVirDev->SetOutputSizePixel(aBackgroundBitmap.GetSizePixel());
    m_pVirDev->DrawBitmapEx(Point(0, 0), aBackgroundBitmap);
    m_pAboutImage->set_image(m_pVirDev.get());
    m_pVirDev.disposeAndClear();
  }

  // Links
  m_pCreditsButton->set_uri(CuiResId(RID_SVXSTR_ABOUT_CREDITS_URL));

  OUString sURL(officecfg::Office::Common::Help::StartCenter::InfoURL::get());
  // localizeWebserviceURI(sURL);
  m_pWebsiteButton->set_uri(sURL);

  // See also SID_WHATSNEW in sfx2/source/appl/appserv.cxx
  sURL = officecfg::Office::Common::Menus::ReleaseNotesURL::get() +
         "?LOvers=" + utl::ConfigManager::getProductVersion() + "&LOlocale=" +
         LanguageTag(utl::ConfigManager::getUILocale()).getBcp47();
  m_pReleaseNotesButton->set_uri(sURL);

  // Handler
  m_pCopyButton->connect_clicked(LINK(this, AboutDialog, HandleClick));
  m_pCloseButton->grab_focus();
}

AboutDialog::~AboutDialog() {}

bool AboutDialog::IsStringValidGitHash(const OUString &hash) {
  for (int i = 0; i < hash.getLength(); i++) {
    if (!std::isxdigit(hash[i])) {
      return false;
    }
  }
  return true;
}

OUString AboutDialog::GetVersionString() {
  OUString sVersion = CuiResId("%ABOUTBOXPRODUCTVERSION%ABOUTBOXPRODUCTVERSIONSUFFIX");

#ifdef _WIN64
  sVersion += " (x64)";
#elif defined(_WIN32)
  sVersion += " (x86)";
#endif

#if HAVE_FEATURE_COMMUNITY_FLAVOR
  sVersion += " / LibreOffice Community";
#endif

  return sVersion;
}

OUString AboutDialog::GetBuildString()
{
  OUString sBuildId(utl::Bootstrap::getBuildIdData(""));
  SAL_WARN_IF(sBuildId.isEmpty(), "cui.dialogs", "No BUILDID in bootstrap file");

  return sBuildId;
}

OUString AboutDialog::GetLocaleString(const bool bLocalized) {

  OUString sLocaleStr;

  rtl_Locale *pLocale;
  osl_getProcessLocale(&pLocale);
  if (pLocale && pLocale->Language) {
    if (pLocale->Country && rtl_uString_getLength(pLocale->Country) > 0)
      sLocaleStr = OUString::unacquired(&pLocale->Language) + "_" +
                   OUString::unacquired(&pLocale->Country);
    else
      sLocaleStr = OUString(pLocale->Language);
    if (pLocale->Variant && rtl_uString_getLength(pLocale->Variant) > 0)
      sLocaleStr += OUString(pLocale->Variant);
  }

  sLocaleStr = Application::GetSettings().GetLanguageTag().getBcp47() + " (" +
               sLocaleStr + ")";

  OUString aUILocaleStr =
      Application::GetSettings().GetUILanguageTag().getBcp47();
  OUString sUILocaleStr;
  if (bLocalized)
     sUILocaleStr = CuiResId(RID_SVXSTR_ABOUT_UILOCALE);
  else
     sUILocaleStr = Translate::get(RID_SVXSTR_ABOUT_UILOCALE, Translate::Create("cui", LanguageTag("en-US")));

  if (sUILocaleStr.indexOf("$LOCALE") == -1) {
    SAL_WARN("cui.dialogs", "translated uilocale string in translations "
                            "doesn't contain $LOCALE placeholder");
    sUILocaleStr += " $LOCALE";
  }
  sUILocaleStr = sUILocaleStr.replaceAll("$LOCALE", aUILocaleStr);

  return sLocaleStr + "; " + sUILocaleStr;
}

OUString AboutDialog::GetMiscString() {

  OUString sMisc;

  bool const extra = EXTRA_BUILDID[0] != '\0';
  // extracted from the 'if' to avoid Clang -Wunreachable-code
  if (extra) {
    sMisc = EXTRA_BUILDID "\n";
  }

  OUString aCalcMode = "Calc: "; // Calc calculation mode

#if HAVE_FEATURE_OPENCL
  bool bOpenCL = openclwrapper::GPUEnv::isOpenCLEnabled();
  if (bOpenCL)
    aCalcMode += "CL";
#else
  const bool bOpenCL = false;
#endif

  static const bool bThreadingProhibited =
      std::getenv("SC_NO_THREADED_CALCULATION");
  bool bThreadedCalc = officecfg::Office::Calc::Formula::Calculation::
      UseThreadedCalculationForFormulaGroups::get();

  if (!bThreadingProhibited && !bOpenCL && bThreadedCalc) {
    if (!aCalcMode.endsWith(" "))
      aCalcMode += " ";
    aCalcMode += "threaded";
  }

  sMisc += aCalcMode;

  return sMisc;
}

OUString AboutDialog::GetCopyrightString() {
  OUString sVendorTextStr(CuiResId(RID_SVXSTR_ABOUT_VENDOR));
  OUString aCopyrightString =
      sVendorTextStr + "\n" + CuiResId(RID_SVXSTR_ABOUT_COPYRIGHT) + "\n";

  if (utl::ConfigManager::getProductName() == "LibreOffice")
    aCopyrightString += CuiResId(RID_SVXSTR_ABOUT_BASED_ON);
  else
    aCopyrightString += CuiResId(RID_SVXSTR_ABOUT_DERIVED);

  return aCopyrightString;
}

// special labels to comply with previous version info
// untranslated English for QA
IMPL_LINK_NOARG(AboutDialog, HandleClick, weld::Button &, void) {
  css::uno::Reference<css::datatransfer::clipboard::XClipboard> xClipboard =
      css::datatransfer::clipboard::SystemClipboard::create(
          comphelper::getProcessComponentContext());

  OUString sInfo = "Version: " + m_pVersionLabel->get_label() + "\n" // version
                   "Build ID: " + GetBuildString() + "\n" + // build id
                   Application::GetHWOSConfInfo(0,false) + "\n" // env+UI
                   "Locale: " + GetLocaleString(false) + "\n" + // locale
                   GetMiscString(); // misc

  vcl::unohelper::TextDataObject::CopyStringTo(sInfo, xClipboard);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */