# --- SDE-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
# 
# Filename: package/.../sysfiles/functions.in.txt
# Copyright (C) 2006 The OpenSDE Project
# 
# More information can be found in the files COPYING and README.
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- SDE-COPYRIGHT-NOTE-END ---

# http://en.wikipedia.org/wiki/ANSI_escape_code
#

ECHO='echo -e'
ESC='\e'	# 033
BELL='\a'	# 07

ART_SUCCESS=" :-)"
ART_FAILURE=" :-("
ART_NEXT=" v "

COLOR_TITLE="$ESC[36m"		# cyan
COLOR_NORMAL="$ESC[0m"		# default (no attributes)
COLOR_SUCCESS="$ESC[32m"	# green
COLOR_FAILURE="$ESC[31m"	# red

MOVE_EOL="$ESC[222G"		# 222 columns to the right... kind-of-eol
MOVE_UP="$ESC[1A"		# 1 line up (eat last \n)

# ${#foo} works on bash, dash and pdksh, not on ash
MOVE_LEFT_STATUS="$ESC[${#ART_SUCCESS}D"	# move left the length of $ART_SUCCESS
MOVE_LEFT_NEXT="$ESC[${#ART_NEXT}D"		# move left the length of $ART_NEXT

title() {
	local x=1 columns=
	columns=$( if ! stty size -F /dev/tty; then
		stty size -F /dev/console
	fi 2> /dev/null | cut -d' ' -f2 )
	[ -n "$columns" ] || columns=80

	# fill with dots with an "arrow" pointing down at the end.
	for (( x=1; x<columns; x++ )); do
		$ECHO -n '.'
	done
	$ECHO -n "$MOVE_LEFT_NEXT$ART_NEXT\r"
	
	# and the title
	$ECHO "$COLOR_TITLE$* $COLOR_NORMAL"
	error=0
}

status() {
	$ECHO -n "$MOVE_UP$MOVE_EOL$MOVE_LEFT_STATUS"
	if [ $error -eq 0 ]; then
		$ECHO "$COLOR_SUCCESS$ART_SUCCESS$COLOR_NORMAL"
	else
		$ECHO "$BELL$COLOR_FAILURE$ART_FAILURE$COLOR_NORMAL"
	fi
}

check() {
	$* || error=$?
}

action() {
	title "$1"
	shift
	$* || error=$?
	status
}