#!/bin/sh
#
# ufetch-slackware - tiny system info for slackware

## INFO

# user is already defined
host="$(hostname)"
os="$(cat /etc/slackware-version)"
kernel="$(uname -sr)"
uptime="$(uptime -p | sed 's/up //')"
packages="$(ls /var/log/packages | wc -l)"
shell="$(basename "${SHELL}")"

## UI DETECTION

parse_rcs() {
	for f in "${@}"; do
		wm="$(sed -n 's/^\s*exec\s\+\(\S\+\).*/\1/p' "$f" 2>/dev/null | head -n 1)"
		[ -n "${wm}" ] && echo "${wm}" && return
	done
}

sys_ui_type() {
	case "$syswm" in
		kde|lxde|gnome|xfce)
			echo 'DE' ;;
		*) echo 'WM' ;;
	esac
}

rcwm="$(parse_rcs "${HOME}/.xinitrc" "${HOME}/.xsession")"
syswm="$(realpath /etc/X11/xinit/xinitrc 2>/dev/null | rev | cut -d. -f1 | rev)"

ui='unknown'
uitype='UI'
if [ -n "${DE}" ]; then
	ui="${DE}"
	uitype='DE'
elif [ -n "${WM}" ]; then
	ui="${WM}"
	uitype='WM'
elif [ -n "${XDG_CURRENT_DESKTOP}" ]; then
	ui="${XDG_CURRENT_DESKTOP}"
	uitype='DE'
elif [ -n "${DESKTOP_SESSION}" ]; then
	ui="${DESKTOP_SESSION}"
	uitype='DE'
elif [ -n "${XDG_SESSION_TYPE}" ]; then
	ui="${XDG_SESSION_TYPE}"
elif [ -n "${rcwm}" ]; then
	ui="${rcwm}"
	uitype='WM'
elif [ -n "${syswm}" ]; then
	ui="${syswm}"
	uitype="$(sys_ui_type)"
fi

ui="$(basename "${ui}")"

## DEFINE COLORS

# probably don't change these
if [ -x "$(command -v tput)" ]; then
	bold="$(tput bold 2> /dev/null)"
	black="$(tput setaf 0 2> /dev/null)"
	red="$(tput setaf 1 2> /dev/null)"
	green="$(tput setaf 2 2> /dev/null)"
	yellow="$(tput setaf 3 2> /dev/null)"
	blue="$(tput setaf 4 2> /dev/null)"
	magenta="$(tput setaf 5 2> /dev/null)"
	cyan="$(tput setaf 6 2> /dev/null)"
	white="$(tput setaf 7 2> /dev/null)"
	reset="$(tput sgr0 2> /dev/null)"
fi

# you can change these
lc="${reset}${bold}${blue}"      # labels
nc="${reset}${bold}${blue}"      # user and hostname
ic="${reset}"                       # info
c0="${reset}${blue}"                # first color

cat <<EOF

${c0}     ________    ${nc}${USER}${ic}@${nc}${host}${reset}
${c0}    /  ______|   ${lc}OS:        ${ic}${os}${reset}
${c0}    | |______    ${lc}KERNEL:    ${ic}${kernel}${reset}
${c0}    \\______  \\   ${lc}UPTIME:    ${ic}${uptime}${reset}
${c0}     ______| |   ${lc}PACKAGES:  ${ic}${packages}${reset}
${c0}  | |________/   ${lc}SHELL:     ${ic}${shell}${reset}
${c0}  |____________  ${lc}${uitype}:        ${ic}${ui}${reset}

EOF
