#!/bin/bash

# Slackware build script for CoolReader

# Copyright 2011-2012  Fridrich von Stauffenberg <email removed>
# Copyright 2020       B. Watson <urchlay@slackware.uk>
# 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.

# 20220218 bkw: update for v3.2.59. To get it to build, had to disable
# unrar support... which didn't exist in v3.2.57, so nobody will miss
# it, I hope. Also, wxWidgets support fails to build, so that's now
# disabled (and removed from the README).

# 20210930 bkw: update for v3.2.57. This is not the latest release, but
# 3.2.58 fails to build. Will revisit when the next release happens. If
# you can't wait that long, send me a patch (does anyone even use this?)
# - remove fribidi from DOWNLOAD, -current's is new enough now.
# - remove libunibreak from DOWNLOAD, add to REQUIRES (SBo's libunibreak
#   is now new enough to use for coolreader).
# - drop QT (qt4) GUI option since qt4's not on SBo (yet?).
# - wxGTK3 build no longer works, for GUI=wx require wxPython 2.8.

# 20210222 bkw: update for v3.2.54. Upstream no longer ships libunibreak
# and fribidi source, so add them to DOWNLOAD. Replace qt4_settings_ui.diff
# with a more robust sed command. Add -fpermissive. Sigh.

# 20201102 bkw:
# - update for v3.2.50.
# - embiggen the default window size.
# - make standard (since the 1980s!) keyboard accelerators work
#   (alt-f for file menu, alt-v for view, etc), in the qt4/5 UIs.

# 20201019 bkw:
# - update for v3.2.49, new homepage.
# - allow for building qt4, qt5, wx UIs.
# - replace useless/inaccurate man page with our own.

# 20200126 bkw, BUILD=2:
# - take over maintenance
# - i486 => i586
# - make .desktop file validate
# - fix documetn => document typo
# - add supported filetypes to README and slack-desc
# - save/load settings (.ini file) to ~/.cr3, not /usr/share/cr3.

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

PRGNAM=coolreader
VERSION=${VERSION:-3.2.59}
BUILD=${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 [ ! -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 $PRGNAM-cr$VERSION
tar xvf $CWD/$PRGNAM-cr$VERSION.tar.gz
cd $PRGNAM-cr$VERSION
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+

# FFS, it's 2020, we don't need GUI apps hardcoded to start at
# 640x400 window size. Honestly we don't need them hardcoded at
# all, but since that's what coolreader does, pick a size that's
# bigger than a 3x5" index card on a modern screen...
sed -i 's,\(<height>\)400,\11024,' cr3qt/src/mainwindow.ui
sed -i 's,\(<width>\)600,\11280,' cr3qt/src/mainwindow.ui

# Install the docs in the right place for Slackware.
sed -i "s,share/doc/cr3,doc/$PRGNAM-$VERSION," cr3qt/CMakeLists.txt

# The settings sed for qt4 was made by loading cr3qt/src/settings.ui
# into Qt Designer and saving it again. Needed because upstream's
# using a different (older?) version of qt4.

if true; then
  # 20220218 bkw: only the qt5 UI works in 3.2.59, sorry.
  GUI=QT5
  UI=Qt5
else
  # 20220218 bkw: wxWidgets is broken (for either 2.8 or 3.0),
  # this section of code can't run, it's left for reference.
  GUI=${GUI:-QT5}
  GUI="$( echo $GUI | tr a-z A-Z )"
  case "$GUI" in
    # 20210930 bkw: Qt4 disabled for now, unless/until SBo gets a qt4 build.
    #QT)  UI=Qt4
         #sed -i '/<property name="currentText"/s,>, stdset="0">,' cr3qt/src/settings.ui
         #;;
    QT5) UI=Qt5 ;;
    WX)  # Only 2.8.x works, be specific in the slack-desc.
         UI="wxWidgets 2.8"
         SLKCFLAGS+=" $( wx-config --version=2.8 --cflags )"
         SLKLDFLAGS="$( wx-config --version=2.8 --libs )" ;;
    *)   echo "*** Unsupported GUI '$GUI', use one of: QT5 WX"
         exit 1 ;;
  esac
fi

# 20201103 bkw: Alt+F for the File menu, Alt+V for View, etc. This
# has been a UI standard since before Windows 1.0 (MS-DOS apps had it),
# and I'm not sure why upstream didn't include it. Only affects the
# Qt4/5 UIs. Incomplete: you can't press Alt+F followed by O for
# File -> Open... but you can use the arrow keys to navigate the
# menus once one of them has been opened.
sed -i 's,>\(File\|View\|Navigation\|Help\)<,>\&amp;\1<,' \
       cr3qt/src/mainwindow.ui

# This is undocumented and exists purely for my own use. It gets rid
# of the "Escape = minimize" keystroke, because I keep expecting Escape
# to exit (like 3 or 4 other document readers I use regularly).
# Only affects the Qt4/5 UIs.
if [ "${NO_ESCAPE:-no}" = "yes" ]; then
  echo "=== Activating super-secret Urchlay mode"
  echo -e 'g/>Esc<\n-1,+1d\nw\nq' | ed cr3qt/src/mainwindow.ui
fi

echo "=== Building $UI GUI"

mkdir -p build
cd build
  cmake \
    -D CMAKE_EXE_LINKER_FLAGS="$SLKLDFLAGS" \
    -D USE_UNRAR=1 \
    -D CMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -D CMAKE_CXX_FLAGS:STRING="$SLKCFLAGS -fpermissive" \
    -D CMAKE_INSTALL_PREFIX=/usr \
    -D LIB_SUFFIX=${LIBDIRSUFFIX} \
    -D CMAKE_BUILD_TYPE=Release \
    -D MAX_IMAGE_SCALE_MUL=2 \
    -D DOC_DATA_COMPRESSION_LEVEL=3 \
    -D DOC_BUFFER_SIZE=0x1400000 \
    -U USE_UNRAR \
    -D GUI=$GUI ..
  make VERBOSE=1
  make install/strip DESTDIR=$PKG
cd ..

# Upstream's man page doesn't document all the options, and incorrectly
# refers to the (nonexistent) info page. It's also hardcoded to install
# to /usr/share/man.
rm -rf $PKG/usr/share/man
mkdir -p $PKG/usr/man/man1
gzip -9c < $CWD/cr3.1 > $PKG/usr/man/man1/cr3.1.gz

# Tired of having to remember the binary's called something other than
# the package and source name.
ln -s cr3 $PKG/usr/bin/$PRGNAM
ln -s cr3.1.gz $PKG/usr/man/man1/$PRGNAM.1.gz

# This dir already exists with GUI=QT or QT5, but not WX.
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a README.md cr3gui/COPYING $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
sed "s,@UI@,$UI," $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
