#!/bin/sh
## This file should be automatically sourced by the login manager. We source it
## manually from shell rc files to make sure it works in TTY as well

## Preliminary definitions.

## Note that it is important for MANPATH to have an empty entry to keep
## searching in the default db path. Same for INFOPATH, which should have an
## empty entry at the end, otherwise Emacs will not use standard locations. For
## security reasons (and bad programming assumptions) you should always append
## entries to PATH, not prepend them.
appendpath () {
	[ $# -eq 2 ] && PATHVAR=$2 || PATHVAR=PATH
	[ -d "$1" ] || return
	eval echo \$$PATHVAR | grep -q "\(:\|^\)$1\(:\|$\)" && return
	eval export $PATHVAR="\$$PATHVAR:$1"
}
prependpath () {
	[ $# -eq 2 ] && PATHVAR=$2 || PATHVAR=PATH
	[ -d "$1" ] || return
	eval echo \$$PATHVAR | grep -q "\(:\|^\)$1\(:\|$\)" && return
	eval export $PATHVAR="$1:\$$PATHVAR"
}

################################################################################

## Mask
## Result for 027 is: rwxr-x---
umask 027

## TeXlive
TEXDIR="${TEXDIR:-/usr/local/texlive}"
if [ -d "${TEXDIR}" ]; then
	TEXYEAR=$(/bin/ls -1r "${TEXDIR}" | grep -m1 "[0-9]\{4\}")
	TEXDISTRO=$(uname -m)-$(uname | awk '{print tolower($0)}')
	TEXFOLDER="${TEXDIR}/${TEXYEAR}/bin/${TEXDISTRO}"
	if [ -d "${TEXFOLDER}" ]; then
		appendpath $TEXFOLDER
		prependpath ${TEXDIR}/${TEXYEAR}/texmf/doc/info INFOPATH

		## BSD uses 'manpath' utility, so MANPATH variable may be empty.
		if [ "$(uname -o)" = "GNU/Linux" ]; then
			prependpath ${TEXDIR}/${TEXYEAR}/texmf/doc/man MANPATH
		fi
	fi
	unset TEXYEAR
	unset TEXDISTRO
	unset TEXFOLDER
fi
unset TEXDIR
export BIBINPUTS=~/personal/bibliography

## Plan9 (base)
PLAN9DIR="/opt/plan9"
if [ -d "$PLAN9DIR" ]; then
	## No need to add to path if /etc/profile.d/plan9.sh does it already.
	# appendpath "$PLAN9DIR/bin"
	if [ "$(uname -o)" = "GNU/Linux" ]; then
		appendpath "$PLAN9DIR/share/man" MANPATH
	fi
fi
unset PLAN9DIR

## Less config. -R is needed for lesspipe colorization.
# export LESS=' -R '
## Make 'less' more friendly for non-text input files, see lesspipe(1).
command -v lesspipe >/dev/null 2>&1 && eval "$(lesspipe)"
## Remove less history.
LESSHISTFILE='-'

## Manpage.
export MANPAGER="less -s"
export MANWIDTH=80
## The following options are useful for FreeBSD default 'less' command which has
## an empty prompt. Sadly this gets messy with 'apropos'.
# export MANPAGER="less -sP '?f%f .?m(file %i of %m) .?ltlines %lt-%lb?L/%L. .byte %bB?s/%s. ?e(END) :?pB%pB\%..%t'"


## Time display (with ls command for example)
## TODO: BSD version?
export TIME_STYLE=+"|%Y-%m-%d %H:%M:%S|"

## SSH-Agent
if command -v ssh-agent >/dev/null 2>&1 && [ -z "$SSH_AGENT_PID" ]; then
	 eval "$(ssh-agent)"
	 ## Kill ssh-agent on session end. Console login only.
	 command -v sessionclean >/dev/null 2>&1 && trap 'sessionclean' 0
fi

if [ "$(uname -o)" = "GNU/Linux" ] ; then
	## Startup error log.
	## dmesg
	log_dmesg="$(dmesg | grep -i error)"
	[ -n "$log_dmesg" ] && echo "$log_dmesg" > "$HOME/errors-dmesg.log" || rm -f "$HOME/errors-dmesg.log"
	## systemd
	if command -v systemctl >/dev/null 2>&1; then
		count="$(systemctl show | awk -F= '$1=="NFailedUnits" {print $2; exit}')"
		if [ $count -ne 0 ]; then
			systemctl -l --failed > "$HOME/errors-systemd.log"
		else
			rm -f "$HOME/errors-systemd.log"
		fi
	fi

	## Set sound volume.
	amixer 2>/dev/null | grep -q PCM && amixer set PCM 100%

	## External device auto-mounting.
	## If already started, the new process will replace the old one.
	if command -v udiskie >/dev/null 2>&1; then
		udiskie &
	fi
fi

## Set TEMP dir if you want to override /tmp for some applications that check
## for this variable. Usually not a good idea since some applications will write
## junk files in it.
# [ -d "$HOME/temp" ] && export TEMP="$HOME/temp"

## Wine DLL override. This removes the annoying messages for Mono and Gecko.
export WINEDLLOVERRIDES="mscoree,mshtml="

## Go
if [ -d "$HOME/go" ]; then
	export GOPATH=~/go:~/.go-tools
	appendpath "$HOME/.go-tools/bin"
	appendpath "$HOME/go/bin"
	command -v godoc >/dev/null 2>&1 && godoc -http :6060 -play 2>/dev/null &
fi

## fzf
if command -v fzf >/dev/null 2>&1; then
	export FZF_DEFAULT_OPTS="\
--reverse \
--inline-info \
--height=40% \
--cycle \
--extended \
--multi \
--select-1 \
--exit-0 \
--bind=alt-a:toggle-all \
--bind=alt-b:page-up \
--bind=alt-f:page-down \
--bind=alt-h:unix-line-discard \
--bind=alt-i:toggle-up \
--bind=alt-j:down \
--bind=alt-k:up \
--bind=alt-l:accept \
--bind=alt-space:toggle-down \
--bind=alt-z:toggle-preview \
--bind=ctrl-a:select-all \
--bind=ctrl-k:kill-line \
"

	export FZF_ALT_C_OPTS="--preview='preview {}'"
	export FZF_BCD_OPTS=$FZF_ALT_C_OPTS
	export FZF_CDHIST_OPTS=$FZF_ALT_C_OPTS
	export FZF_CTRL_R_OPTS="--reverse --sort"
	## Multiple previews might not show up when the --height is less then 100%
	## since the 'preview' script only considers the total number of lines in the
	## terminal window (not in the preview window).
	export FZF_CTRL_T_OPTS="--bind=alt-l:'execute(rifle {+})' --preview='preview {+}'"
	if [ "$(uname -o)" = "GNU/Linux" ]; then
		## Append '/' to folder names. GNU find required.
		export FZF_CTRL_T_COMMAND="command find -L \$dir -mindepth 1 \\( -path \$dir'*/\\.*' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
-o -type f -print \
-o -type d -printf '%p/\n' \
-o -type l -print 2> /dev/null | sed 's#^\./##'"
	fi
fi

## pacman abs
if command -v asp >/dev/null 2>&1; then
	export ASPROOT="$HOME/.cache/asp"
fi

################################################################################

## Last PATH entries.
appendpath "/usr/lib/surfraw"
appendpath "${HOME}/personal/games/launchers"
appendpath "${HOME}/.scripts"
prependpath "${HOME}/personal/hackpool"

## Default text editor
## 'em' is a custom wrapper for emacsclient. See '.scripts/em'.
## VISUAL is given priority by some programs like Mutt. This way we can separate
## editors that wait from those that don't.
for i in em emacs vim vi nano; do
	command -v $i >/dev/null 2>&1 && export EDITOR=$i && break
done
GIT_EDITOR="$EDITOR"
VISUAL="$EDITOR"
[ "$GIT_EDITOR" = em ] && GIT_EDITOR=emc
[ "$VISUAL" = em ] && VISUAL=emw
export GIT_EDITOR
export VISUAL

################################################################################

## Hook. Should be sourced last
[ -f ~/.profile_hook ] && . ~/.profile_hook
## Hook example
#
# appendpath "${HOME}/local/usr/bin"
# prependpath "${HOME}/local/usr/share/info" INFOPATH
# prependpath "${HOME}/local/usr/share/man" MANPATH
#
# appendpath "$HOME/local/usr/include" C_INCLUDE_PATH
# appendpath "$HOME/local/usr/include" CPLUS_INCLUDE_PATH
# appendpath "$HOME/local/usr/lib" LIBRARY_PATH
# export CPPFLAGS=-I$HOME/local/usr/include
# export LDFLAGS=-L$HOME/local/usr/lib
#
# appendpath "${HOME}/local/usr/lib/pkgconfig" PKG_CONFIG_PATH
#
# appendpath "${HOME}/local/usr/lib/" LD_LIBRARY_PATH
# appendpath "$HOME/local/usr/lib/python2.7/dist-packages/" PYTHONPATH
# export LUA_CPATH="$HOME/local/usr/lib/lib?.so;$(lua -e "print(package.cpath)")"
#
# umask 077

## End: Source .bashrc. The rc file should guard against non-interactive shells.
[ "$(ps -o comm= $$)" != bash ] && return
[ -f ~/.bashrc ] && . ~/.bashrc