#!/bin/bash

# variables
GITHUB_REPO=qtile/qtile
VERSION=${VERSION:-latest}

BUILD=1

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

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

ARCH=$(uname -m)

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

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

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 $TMP/$PKGNAM/

case $VERSION in
    trunk)
        PKGVERSION="r$(git rev-list --count HEAD)_$(git log -1 --format=%h)"
        ;;
    latest)
        PKGVERSION=$(git describe --tags --abbrev=0)
        git checkout "$VERSION"
        ;;
    *)
        PKGVERSION="$VERSION"
        git checkout "$VERSION"
        ;;
esac

# installation
python3 ./setup.py install --root=$PKG

cat <<EOF > $PKG$PREFIX/bin/start_qtile.sh
#!/bin/bash

#set -e

LOGFILE=~/.wsession-errors
true > \$LOGFILE
exec &> \$LOGFILE

set -x
echo "$PKGNAM Starting: \$( date )"

# Uncomment if mouse pointer is invisible
#export WLR_NO_HARDWARE_CURSORS=1

unset QT_QPA_PLATFORM

export QT_QPA_PLATFORMTHEME=qt5ct
export MOZ_ENABLE_WAYLAND=1
export XDG_CURRENT_DESKTOP=sway
export XDG_PICTURES_DIR=~/.wallpapers

export XDG_RUNTIME_DIR=/tmp/xdg-runtime-\$(id -u)

mkdir -p \$XDG_RUNTIME_DIR
chmod 0700 \$XDG_RUNTIME_DIR

# avoid wlr error
unset DISPLAY

exec dbus-run-session qtile start -b wayland
EOF
chmod +x $PKG$PREFIX/bin/start_qtile.sh

mkdir -p $PKG$PREFIX/share/wayland-sessions/
cp resources/qtile-wayland.desktop $PKG$PREFIX/share/wayland-sessions/

mkdir -p $PKG$PREFIX/share/xsessions/
cp resources/qtile.desktop $PKG$PREFIX/share/xsessions/
mkdir -p $PKG/etc/X11/xinit/
cat <<EOF > $PKG/etc/X11/xinit/xinitrc.$PKGNAM
#!/bin/sh

userresources=\$HOME/.Xresources
usermodmap=\$HOME/.Xmodmap
sysresources=/etc/X11/xinit/.Xresources
sysmodmap=/etc/X11/xinit/.Xmodmap

# Merge in defaults and keymaps
if [ -f \$sysresources ]; then
    xrdb -merge \$sysresources
fi

if [ -f \$sysmodmap ]; then
    xmodmap \$sysmodmap
fi

if [ -f \$userresources ]; then
    xrdb -merge \$userresources
fi

if [ -f \$usermodmap ]; then
    xmodmap \$usermodmap
fi

# Start qtile
if [ -z "\$DESKTOP_SESSION" -a -x /usr/bin/ck-launch-session ]; then
 exec ck-launch-session dbus-launch --exit-with-session qtile start
else
 exec dbus-launch --exit-with-session qtile start
fi
EOF

sed -i 's|Exec=qtile start -b wayland|Exec=/usr/bin/start_qtile.sh|' $PKG$PREFIX/share/wayland-sessions/qtile-wayland.desktop

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

######################
# EMBED DEPENDENCIES #
######################
# qtile-extras
EMBED_EXTRAS=${EMBED_EXTRAS:-"yes"}
if [ "$EMBED_EXTRAS" = "yes" ]; then
    EXTRAS_PKGNAM=qtile-extras
    EXTRAS_GITHUB_REPO=elParaguayo/qtile-extras
    EXTRAS_VERSION=${EXTRAS_VERSION:-$VERSION}
    EXTRAS_REPOSITORY=/home/installs/SlackBuilds/_repositories/$EXTRAS_PKGNAM
    [ ! -e "$EXTRAS_REPOSITORY" ] && git clone https://github.com/${EXTRAS_GITHUB_REPO}.git "$EXTRAS_REPOSITORY"
    cd "$EXTRAS_REPOSITORY" || exit 1
    git reset --hard HEAD
    git pull --all


    cp -R $EXTRAS_REPOSITORY $TMP/
    cd $TMP/qtile-extras/ || exit 1
    case $EXTRAS_VERSION in
        trunk)
            EXTRAS_VERSION="r$(git rev-list --count HEAD)_$(git log -1 --format=%h)"
            ;;
        latest)
            EXTRAS_VERSION=$(git describe --tags --abbrev=0)
            git checkout "$EXTRAS_VERSION"
            ;;
        *)
            git checkout "$EXTRAS_VERSION"
            ;;
    esac
    PKGNAM="${PKGNAM}+extras"
    PKGVERSION="${PKGVERSION}+${EXTRAS_VERSION}"

    # installation
    python3 -m build --wheel
    python3 -m installer --destdir $PKG --prefix /usr dist/*.whl

    mkdir -p $PKG$PREFIX/doc/qtile-extras
    cp CHANGELOG LICENSE ./*.md $PKG$PREFIX/doc/qtile-extras/
fi

# 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------------------------------------------------------|
$PKGNAM: $PKGNAM (A tiling window manager written and configured in Python)
$PKGNAM:
$PKGNAM: A full-featured, hackable tiling window manager written and
$PKGNAM: configured in Python
$PKGNAM: $([ "$EMBED_EXTRAS" = "yes" ] && echo "(includes qtile-extras)")
$PKGNAM:
$PKGNAM:
$PKGNAM:
$PKGNAM:
$PKGNAM: $([ "$EMBED_EXTRAS" = "yes" ] && echo https://github.com/${EXTRAS_GITHUB_REPO})
$PKGNAM: https://qtile.org
EOF

# empaquetage
rm -f $PKG/{,usr/}lib$(uname -m | grep -o 64)/*.la
/sbin/makepkg --linkadd y --chown n --prepend $OUTPUT/$PKGNAM-$PKGVERSION-$ARCH-$BUILD$TAG.txz