#!/bin/bash

# variables
GITHUB_REPO=swaywm/sway
VERSION=${VERSION:-"latest"}
BUILD=4

TAG=gwh
OUTPUT=/tmp
TMP=/tmp/$TAG
CWD=$(pwd)

PRGNAM=$(basename $CWD)
PKG=$TMP/pkg-$PRGNAM

ARCH=$(uname -m)

REPOSITORY=/home/installs/SlackBuilds/_repositories/$PRGNAM
PREFIX=/usr

# nettoyage préalable
rm -fr $PKG $TMP/$PRGNAM

mkdir -p $PKG

# mise en place
[ ! -e $REPOSITORY ] && git clone https://github.com/${GITHUB_REPO} $REPOSITORY
cd $REPOSITORY
git pull --all

cp -R $REPOSITORY $TMP/

cd $TMP/$PRGNAM/
case $VERSION in
    trunk)
        VERSION="git_$(git log -1 --format=%h_%ad --date=format:%Y.%m.%d)"
        ;;
    latest)
        VERSION=$(git for-each-ref --sort=taggerdate --format '%(tag)' | tail -n1)
        git checkout $VERSION
        ;;
    *)
        git checkout $VERSION
        ;;
esac

for p in $CWD/patches/*.patch; do
    git am $p
done

# Slackware ships meson 0.59.4 and won't move to 0.60.x for the time being
# sed -i 's|0.60|0.59|' meson.build # -current now has 0.62.x

meson setup \
      --prefix /usr \
      --mandir /usr/man/ \
      -Dsd-bus-provider=libelogind \
      -Dstrip=true \
      -Ddefault-wallpaper=true \
      -Dswaybar=true \
      -Dxwayland=enabled \
      -Dtray=enabled \
      -Dgdk-pixbuf=enabled \
      -Dswaynag=true \
      -Dbash-completions=true \
      -Dzsh-completions=true \
      -Dfish-completions=true \
      build/

ninja -C build/
cd build/
meson install --destdir=$PKG
cd ../

# https://github.com/swaywm/sway/wiki/Running-Sway-without-systemd
chmod +s $PKG$PREFIX/bin/sway

cat <<EOF > $PKG$PREFIX/bin/start_sway.sh
#!/bin/bash
set -e

export QT_QPA_PLATFORMTHEME=qt5ct
export QT_QPA_PLATFORM=wayland-egl
export QT_WAYLAND_FORCE_DPI=physical
export QT_WAYLAND_DISABLE_WINDOWDECORATION=1
export QT_AUTO_SCREEN_SCALE_FACTOR=0
export QT_AUTO_SCREEN_SCALE_FACTOR=0
#export QT_FONT_DPI=161
export QT_SCALE_FACTOR=2

export SAL_USE_VCLPLUGIN=gtk3

export MOZ_ENABLE_WAYLAND=1
export MOZ_DBUS_REMOTE=1

export _JAVA_AWT_WM_NONREPARENTING=1

export GDK_BACKEND=wayland
export CLUTTER_BACKEND=wayland

#export XDG_CURRENT_DESKTOP=sway
export XDG_CURRENT_DESKTOP=Unity # for waybar's tray
export XDG_SESSION_TYPE=wayland

export NO_AT_BRIDGE=1
export \$(gnome-keyring-daemon --start --components=ssh)

# java fix
export _JAVA_AWT_WM_NONREPARENTING=1

export ECORE_EVAS_ENGINE=wayland_egl
export ELM_ENGINE=wayland_egl

# SDL [https://www.reddit.com/r/swaywm/comments/s8kiz6/common_swaywayland_fixes_for_steam_games/]
export SDL_DYNAMIC_API=/usr/lib64/libSDL2.so
export SDL_VIDEODRIVER=wayland

#[ -e \$HOME/.profile ] && . \$HOME/.profile

unset DISPLAY

export XDG_RUNTIME_DIR=/tmp/xdg-runtime-\$(id -u)
mkdir -p \$XDG_RUNTIME_DIR
chmod 0700 \$XDG_RUNTIME_DIR

export LIBSEAT_BACKEND=logind

# Décommenter s'il n'y a pas de curseur souris visible
#export WLR_NO_HARDWARE_CURSORS=1

export SWAYSOCK=/run/user/\$(id -u)/sway-ipc.\$(id -u).\$(pgrep -x sway).sock
exec dbus-run-session sway
EOF
chmod +x $PKG$PREFIX/bin/start_sway.sh

sed -i 's|Exec=sway|Exec=/usr/bin/start_sway.sh|' $PKG$PREFIX/share/wayland-sessions/sway.desktop

mkdir -p $PKG$PREFIX/doc/$PRGNAM
cp LICENSE *.md $PKG$PREFIX/doc/$PRGNAM/

# correction
cd $PKG
chown -R root:root *
[ -d $PKG$PREFIX/man ] && find $PKG$PREFIX/man -name "*.?" -type f -exec gzip -9 {} \;

# embaumement
mkdir -p $PKG/install

cat <<EOF > $PKG/install/slack-desc
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.  Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in.  You must
# make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':'.

     |-----handy-ruler------------------------------------------------------|
$PRGNAM: $PRGNAM (i3-compatible Wayland compositor)
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: https://github.com/${GITHUB_REPO}
EOF

# empaquetage
rm -f $PKG/{,usr/}lib$(uname -m | grep -o 64)/*.la
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$(echo $VERSION | tr - _)-$ARCH-$BUILD$TAG.txz