#!/bin/bash

# Slackbuild for vbam

# Currently maintained by B. Watson <yalhcru@gmail.com>.
# Previously maintained by Dugan Chen <email removed>.
# Written by JK Wood <email removed>.

# Slackbuild is released under the Dog-on-Fire License:
# If use of this script causes your dog to catch on fire,
# you agree to send me five dollars.  Or a picture
# of the dog on fire.
# Otherwise, you're on your own.  I've tested the script
# on my own computer, and it hasn't broken anything.
# So if it does it on your computer, that falls in
# the realm of "Not my problem."
#
# Of course, if you'll send a bug report to the above
# email address, I may be able to see what you did
# wrong and prevent it from happening in the future.
# In which case, I may just send YOU five dollars.

# Modified by the SlackBuilds.org project.

# 20191129 bkw: updated for 2.1.4.
# 20180702 bkw: updated for 2.1.0.
# 20180612 bkw: updated for 2.0.2.
# 20171219 bkw: updated for 2.0.1.
# 20170302 bkw: use long-format github URL

# 20170126 bkw:
# - New maintainer, remove old maintainers' email addresses.
# - Update for 2.0.0beta3. This adds SDL2 and SFML as deps.
#   Actually I could make SFML optional, it's only used for emulating
#   the GBA link cable. If anyone *really* wants to do this, add
#   -DENABLE_LINK=OFF to the cmake command. Not going to add it as
#   an option unless someone requests it.
# - Install binary in /usr/games, not /usr/bin.
# - Use correct wx-config, even if /usr/bin/wx-config symlink points
#   to 2.8 instead of 3.0.
# - Get rid of Windows-only doc.
# - Binary & source name has changed to visualboyadvance-m, keep the
#   old vbam name as symlinks.
# - Correct README, plus cosmetic reformatting.

PRGNAM=vbam
VERSION=${VERSION:-2.1.4}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

SRCVER="$VERSION"
SRCNAM="visualboyadvance-m"

# Set to ON to enable FFMPEG A/V recording.
FFMPEG=${FFMPEG:-OFF}

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

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
  ASM=ON # x86 ASM optimizations are available.
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
  ASM=ON
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
  ASM=OFF
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
  ASM=OFF
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 /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+

# if both wx(Python|GTK) 2 and 3 are installed, /usr/bin/wx-config
# is a symlink to the config for whichever was installed last. Avoid
# confusion, force the correct version.
WXCONF=${WXCONF:-/usr/lib$LIBDIRSUFFIX/wx/config/gtk2-unicode-3.0}

# upstream cleverly parses their own ChangeLog to get the version number
# that gets compiled into the binary. They un-cleverly failed to follow
# their own formatting rules for v2.0.2, meaning the 2.0.2 executable
# says 2.0.1 in its window title. So:
sed -i '/\[2\.0\.2\]/s,Bug fix release,-,' CHANGELOG.md

mkdir -p build
cd build
  cmake \
    -DwxWidgets_CONFIG_EXECUTABLE=$WXCONF \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DENABLE_ASM_CORE=${ASM} \
    -DENABLE_ASM_SCALERS=${ASM} \
    -DENABLE_FFMPEG=${FFMPEG} \
    -DCMAKE_BUILD_TYPE=Release ..
  make
  sed -i \
      -e 's,/usr/share/man,/usr/man,g' \
      -e 's,/usr/bin,/usr/games,g' \
      cmake_install.cmake
  make install DESTDIR=$PKG
cd ..

strip $PKG/usr/games/$SRCNAM
ln -s $SRCNAM $PKG/usr/games/$PRGNAM

gzip $PKG/usr/man/man6/$SRCNAM.6
ln -s $SRCNAM.6.gz $PKG/usr/man/man6/$PRGNAM.6.gz

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
rm -f doc/ReadMe.MFC.txt # this is for Windows only
cp -a doc/* $PKG/usr/doc/$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:-tgz}