#!/bin/bash

# variables
GITHUB_REPO=alacritty/alacritty-theme
VERSION=${VERSION:-trunk} # or VERSION=trunk

BUILD=${BUILD:-3}

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

PRGNAM=$(basename "$CWD")
PKG=$TMP/pkg-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

ARCH=${ARCH:-$(uname -m)}

REPOSITORY=${REPOSITORY:-/var/cache/SlackBuilds.gwh/$PRGNAM}
PREFIX=${PREFIX:-/usr}

# nettoyage préalable
rm -fr "$PKG" "${TMP:?}/$PRGNAM"

mkdir -p "$PKG"

# mise en place
cd $TMP || exit 1
[ ! -e "$REPOSITORY" ] && git clone https://github.com/${GITHUB_REPO}.git "$REPOSITORY"
cd "$REPOSITORY" || exit 1
git pull --all

cp -R "$REPOSITORY" $TMP/
cd "$TMP/$PRGNAM" || exit 1
[ "$VERSION" == "latest" ] && VERSION=$(git tag --sort=-version:refname | head -n1)
[ "$VERSION" == "" ] && VERSION=trunk
[ "$VERSION" == "trunk" ] && VERSION="git_r$(git rev-list --count HEAD)_$(git log -1 --format=%h)" || git checkout "$VERSION"

mkdir -p "$PKG$PREFIX/share/"
mv themes "$PKG$PREFIX/share/$PRGNAM"

# move doc/ to the appropriate location
mkdir -p "$PKG$PREFIX/doc/$PRGNAM"
mv ./* "$PKG$PREFIX/doc/$PRGNAM/"


mkdir -p "$PKG$PREFIX/bin"
cat <<EOF > "$PKG$PREFIX/bin/alacritty-theme-chooser.sh"
#!/bin/bash

ALACRITTY_CONFIG_DIR=~/.config/alacritty
ALACRITTY_THEMES_DIR=$PREFIX/share/$PRGNAM

if [ ! -e "\$ALACRITTY_CONFIG_DIR"/alacritty.toml ]; then
   echo "Alacritty config file "\$ALACRITTY_CONFIG_DIR"/alacritty.toml is missing"
   exit 1
fi

if ! \$(grep -q "theme.toml" "\$ALACRITTY_CONFIG_DIR"/alacritty.toml); then
   echo "You need this line in your \$ALACRITTY_CONFIG_DIR/alacritty.toml :"
   echo "    import = [ \"~/.config/alacritty/theme.toml\" ]"
   exit 1
fi

apply() {
    THEME_NAME=\${1:-Cobalt2}

    [ -e "\$ALACRITTY_THEMES_DIR/\$THEME_NAME.toml" ] || exit 1
    ln -sf "\$ALACRITTY_THEMES_DIR/\$THEME_NAME.toml" "\$ALACRITTY_CONFIG_DIR"/theme.toml
    touch "\$ALACRITTY_CONFIG_DIR"/alacritty.toml
}

list() {
    find "\$ALACRITTY_THEMES_DIR" -name \*.toml | sort | rev | cut -d/ -f1 | rev | sed 's|.toml\$||'
}

menu() {
    let i = 0
    THEMES=() # define working array
    while read -r line; do # process file by file
        let i=\$i+1
        THEMES+=(\$i "\$line")
    done < <( list )
    THEME=\$(dialog --title "List file of directory /home" --menu "Chose one" 24 80 17 "\${THEMES[@]}" 3>&2 2>&1 1>&3) # show dialog and store output
    RESULT=\$?
    clear
    if [ \$RESULT -eq 0 ]; then # Exit with OK
        apply "\${THEMES[\$((THEME * 2 -1))]}"
    fi
}

case "\$1" in
    apply)
        apply "\$2"
        ;;
    list)
        list
        ;;
    help|h|-h|--help)
        echo "Usage: \$0 (menu | list | apply <theme>)"
        ;;

    *)
        menu
        ;;
esac
EOF
chmod +x "$PKG$PREFIX/bin/alacritty-theme-chooser.sh"

# correction
cd "$PKG" || exit 1
chown -R root:root ./*

# 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 (Themes for Alacritty and a helper script)
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: https://github.com/${GITHUB_REPO}
EOF

# empaquetage
/sbin/makepkg --linkadd y --chown n --prepend "$OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.txz"