#!/bin/bash

# Slackware build script for rstudio-desktop

# Copyright 2018 Ekin Akoglu, Erdemli/Mersin, Turkey <ekinakoglu@gmail.com>
# Copyright 2022 Isaac Yu <isaacyu1@isaacyu1.com>
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=rstudio-desktop
SRCNAM=rstudio
VERSION=${VERSION:-2022.07.2+576}
SRCVER=${SRCVER:-$(echo $VERSION | sed 's/+/-/g')}
GITCOMMIT_VER=e7373ef
NODE_VER=${NODE_VER:-16.14.0}
PANDOCVER=current
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM-$SRCVER
tar xvf $CWD/$SRCNAM-$SRCVER.tar.gz
cd $SRCNAM-$SRCVER
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# patches 
patch -p1 < $CWD/pandoc_version.patch     # Do not use outdated pandoc version number
patch -p1 < $CWD/disable_quarto.patch     # cmake ignores -DQUARTO_ENABLED for some reason

cd dependencies/common
mkdir -p pandoc/$PANDOCVER

ln -sfT /usr/share/myspell/dicts dictionaries
ln -sfT /usr/share/mathjax2 mathjax-27
ln -sfT /usr/bin/pandoc pandoc/$PANDOCVER/pandoc

mkdir -p node
cd node && tar xvf $CWD/node-v$NODE_VER-linux-x64.tar.gz
cd ../
mv node/node-v$NODE_VER-linux-x64 node/$NODE_VER
export PATH=$TMP/$SRCNAM-$SRCVER/dependencies/common/node/$NODE_VER/bin:$PATH     # use bundled node
cd $TMP/$SRCNAM-$SRCVER/src/gwt/panmirror/src/editor

# Prevent creation of cache files in /usr/local/share/
env YARN_DISABLE_SELF_UPDATE_CHECK=true \
  YARN_CACHE_FOLDER=$TMP/$SRCNAM-$SRCVER/cache/yarn \
  yarn install --ignore-engines

# Fix links for src/cpp/session/CMakeLists.txt
cd $TMP/$SRCNAM-$SRCVER/dependencies
ln -sfT common/dictionaries dictionaries
ln -sfT common/mathjax-27 mathjax-27
ln -sfT common/pandoc pandoc

cd $TMP/$SRCNAM-$SRCVER

# Environmental variables (RStudio version numbers, architecture, etc.)
VERSION_AWK=${VERSION_AWK:-$(echo $VERSION | sed 's/+/\.+/g')}
export RSTUDIO_VERSION_MAJOR=$(echo $VERSION_AWK | awk -F '.' '{print $1}')
export RSTUDIO_VERSION_MINOR=$(echo $VERSION_AWK | awk -F '.' '{print $2}')
export RSTUDIO_VERSION_PATCH=$(echo $VERSION_AWK | awk -F '.' '{print $3}')
export RSTUDIO_VERSION_SUFFIX=$(echo $VERSION_AWK | awk -F '.' '{print $4}')
export GIT_COMMIT=$GITCOMMIT_VER
export PACKAGE_OS=$(uname -om)

# Ensure that RStudio builds successfully on multilib systems
QT5_CORE=-DQt5Core_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Core
QT5_DBUS=-DQt5DBus_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5DBus
QT5_GUI=-DQt5Gui_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Gui
QT5_NETWORK=-DQt5Network_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Network
QT5_OPENGL=-DQt5OpenGL_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5OpenGL
QT5_POSITIONING=-DQt5Positioning_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Positioning
QT5_PRINTSUPPORT=-DQt5PrintSupport_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5PrintSupport
QT5_QMLMODELS=-DQt5QmlModels_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5QmlModels
QT5_QML=-DQt5Qml_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Qml
QT5_QUICKWIDGETS=-DQt5QuickWidgets_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5QuickWidgets
QT5_QUICK=-DQt5Quick_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Quick
QT5_SENSORS=-DQt5Sensors_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Sensors
QT5_SQL=-DQt5Sql_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Sql
QT5_SVG=-DQt5Svg_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Svg
QT5_WEBCHANNEL=-DQt5WebChannel_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5WebChannel
QT5_WEBENGINECORE=-DQt5WebEngineCore_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5WebEngineCore
QT5_WEBENGINEWIDGETS=-DQt5WebEngineWidgets_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5WebEngineWidgets
QT5_WEBENGINE=-DQt5WebEngine_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5WebEngine
QT5_WIDGETS=-DQt5Widgets_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Widgets
QT5_XMLPATTERNS=-DQt5XmlPatterns_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5XmlPatterns
QT5_XML=-DQt5Xml_DIR:PATH=/usr/lib${LIBDIRSUFFIX}/cmake/Qt5Xml

MULTILIB=($QT5_CORE $QT5_DBUS $QT5_GUI $QT5_NETWORK $QT5_NETWORK $QT5_OPENGL \
	  $QT5_POSITIONING $QT5_PRINTSUPPORT $QT5_QMLMODELS $QT5_QML $QT5_QUICKWIDGETS \
          $QT5_QUICK $QT5_SENSORS $QT5_SQL $QT5_SVG $QT5_WEBCHANNEL $QT5_WEBENGINECORE \
          $QT5_WEBENGINEWIDGETS $QT5_WEBENGINE $QT5_WIDGETS $QT5_XMLPATTERNS $QT5_XML)

mkdir -p build
cd build
  cmake -S "$TMP/$SRCNAM-$SRCVER" \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DRSTUDIO_TARGET=Desktop \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX=/usr/lib/rstudio \
    -DRSTUDIO_USE_SYSTEM_BOOST=yes \
    -DRSTUDIO_USE_SYSTEM_YAML_CPP=yes \
    -DQT_QMAKE_EXECUTABLE=/usr/bin/qmake-qt5 \
    -DBoost_NO_BOOST_CMAKE=ON \
    -DQUARTO_ENABLED=FALSE \
    -DRSTUDIO_USE_SYSTEM_SOCI=yes \
    -DRSTUDIO_BUNDLE_QT=FALSE \
    ${MULTILIB[@]}
  make
  make install DESTDIR=$PKG
cd ..

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/bin
(
  cd $PKG/usr/bin
  ln -sf ../lib/rstudio/bin/rstudio rstudio
)

# Update symlinks to be relative
ln -sfrT /usr/share/myspell/dicts $PKG/usr/lib/rstudio/resources/dictionaries
ln -sfrT /usr/share/mathjax2 $PKG/usr/lib/rstudio/resources/mathjax-27
ln -sfrT /usr/bin/pandoc $PKG/usr/lib/rstudio/bin/pandoc/pandoc

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  $PKG/usr/lib/rstudio/{COPYING,INSTALL,NOTICE,README.md,SOURCE} \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE