#!/bin/bash

# variables
GITHUB_REPO=hyprwm/Hyprland
VERSION=${VERSION:-"latest"}

BUILD=1

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" || exit 1
git pull --all

cp -R "$REPOSITORY" $TMP/

cd "$TMP/$PRGNAM/" || exit 1
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 "$PKGVERSION"
        ;;
    *)
        git checkout "$PKGVERSION"
        ;;
esac
PKGNAM=${PRGNAM}



######################
# EMBED DEPENDENCIES #
######################
git submodule update --init --recursive

# libliftoff
EMBED_LIBLIFTOFF=${EMBED_LIBLIFTOFF:-"yes"}
if [ "$EMBED_LIBLIFTOFF" = "yes" ]; then
    LIBLIFTOFF_VERSION=${LIBLIFTOFF_VERSION:-$VERSION}
    LIBLIFTOFF_REPOSITORY=/home/installs/SlackBuilds/_repositories/libliftoff
    [ ! -e "$LIBLIFTOFF_REPOSITORY" ] && git clone https://gitlab.freedesktop.org/emersion/libliftoff.git "$LIBLIFTOFF_REPOSITORY"
    cd "$LIBLIFTOFF_REPOSITORY" || exit 1
    git reset --hard HEAD
    git pull --all

    mkdir -p "$TMP/$PRGNAM"/subprojects/
    cp -a "$LIBLIFTOFF_REPOSITORY" "$TMP/$PRGNAM"/subprojects/libliftoff
    cd "$TMP/$PRGNAM"/subprojects/libliftoff || exit 1
    case $LIBLIFTOFF_VERSION in
        trunk)
            # LIBLIFTOFF_VERSION="git_r$(git log -1 --format=%h_%ad --date=format:%Y.%m.%d)"
            LIBLIFTOFF_VERSION="r$(git rev-list --count HEAD)_$(git log -1 --format=%h)"
            ;;
        latest)
            LIBLIFTOFF_VERSION=$(git describe --tags --abbrev=0)
            git checkout "$LIBLIFTOFF_VERSION"
            ;;
        *)
            git checkout "$LIBLIFTOFF_VERSION"
            ;;
    esac
    PKGNAM="${PKGNAM}+libliftoff"
    PKGVERSION="${PKGVERSION}+${LIBLIFTOFF_VERSION}"
fi

# libdisplay-info
EMBED_LIBDISPLAYINFO=${EMBED_LIBDISPLAYINFO:-"yes"}
if [ "$EMBED_LIBDISPLAYINFO" = "yes" ]; then
    LIBDISPLAYINFO_VERSION=${LIBDISPLAYINFO_VERSION:-$VERSION}
    LIBDISPLAYINFO_REPOSITORY=/home/installs/SlackBuilds/_repositories/libdisplay-info
    [ ! -e "$LIBDISPLAYINFO_REPOSITORY" ] && git clone https://gitlab.freedesktop.org/emersion/libdisplay-info.git "$LIBDISPLAYINFO_REPOSITORY"
    cd "$LIBDISPLAYINFO_REPOSITORY" || exit 1
    git reset --hard HEAD
    git pull --all

    mkdir -p "$TMP/$PRGNAM"/subprojects/
    cp -a "$LIBDISPLAYINFO_REPOSITORY" "$TMP/$PRGNAM"/subprojects/libdisplay-info
    cd "$TMP/$PRGNAM"/subprojects/libdisplay-info || exit 1
    case $LIBDISPLAYINFO_VERSION in
        trunk)
            # LIBDISPLAYINFO_VERSION="git_r$(git log -1 --format=%h_%ad --date=format:%Y.%m.%d)"
            LIBDISPLAYINFO_VERSION="r$(git rev-list --count HEAD)_$(git log -1 --format=%h)"
            ;;
        latest)
            LIBDISPLAYINFO_VERSION=$(git describe --tags --abbrev=0)
            git checkout "$LIBDISPLAYINFO_VERSION"
            ;;
        *)
            git checkout "$LIBDISPLAYINFO_VERSION"
            ;;
    esac
    PKGNAM="${PKGNAM}+libdisplay_info"
    PKGVERSION="${PKGVERSION}+${LIBDISPLAYINFO_VERSION}"
fi


# Back to compiling
cd "$TMP/$PRGNAM/" || exit 1

meson setup \
      --prefix /usr \
      --mandir /usr/man/ \
      -Dxwayland=enabled \
      build/

ninja -C build/
cd build/ || exit 1
meson install --destdir="$PKG"
cd ../

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

# correction
cd "$PKG" || exit 1
chown -R root:root ./*
[ -d "$PKG$PREFIX/man" ] && find "$PKG$PREFIX/man" -name "*.?" -type f -exec gzip -9 {} \;

# Don't package wlroots includes or .so link as we don't want to interfere with SBo's wlroots
find "$PKG$PREFIX/lib$(uname -m | grep -o 64)/" -type l -exec rm {} \;
rm -r "$PKG$PREFIX/lib$(uname -m | grep -o 64)/pkgconfig/"
rm -r "$PKG$PREFIX/include/"

# 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 (a dynamic tiling Wayland compositor)
$PRGNAM:
$PRGNAM: Hyprland is a dynamic tiling Wayland compositor based on wlroots
$PRGNAM: that doesn't sacrifice on its looks.
$PRGNAM:
$PRGNAM: It supports multiple layouts, fancy effects, has a very flexible
$PRGNAM: IPC model allowing for a lot of customization, and more.
$PRGNAM:
$PRGNAM:
$PRGNAM: https://hyprland.org/
$PRGNAM: https://github.com/${GITHUB_REPO}
EOF

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