#!/bin/sh
#-
# Copyright (c) 2012-2013 Devin Teske
# All Rights Reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
############################################################ INCLUDES

BSDCFG_SHARE="/usr/share/bsdconfig"
. $BSDCFG_SHARE/common.subr || exit 1
f_dprintf "%s: loading includes..." "$0"
f_include $BSDCFG_SHARE/dialog.subr
f_include $BSDCFG_SHARE/mustberoot.subr
f_include $BSDCFG_SHARE/sysrc.subr

BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="080.console"
f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr

ipgm=$( f_index_menusel_keyword $BSDCFG_LIBE/$APP_DIR/INDEX "$pgm" )
[ $? -eq $SUCCESS -a "$ipgm" ] && pgm="$ipgm"

############################################################ FUNCTIONS

# dialog_menu_main
#
# Display the dialog(1)-based application main menu.
#
dialog_menu_main()
{
	local menu_list size defaultitem=
	local hline="$hline_choose_a_screen_saver"
	local prompt="$msg_saver_menu_text"

	menu_list="
		'1 $msg_blank'   '$msg_blank_desc'
		'2 $msg_beastie' '$msg_beastie_desc'
		'3 $msg_daemon'  '$msg_daemon_desc'
		'4 $msg_dragon'  '$msg_dragon_desc'
		'5 $msg_fade'    '$msg_fade_desc'
		'6 $msg_fire'    '$msg_fire_desc'
		'7 $msg_green'   '$msg_green_desc'
		'8 $msg_logo'    '$msg_logo_desc'
		'9 $msg_rain'    '$msg_rain_desc'
		'a $msg_snake'   '$msg_snake_desc'
		'b $msg_star'    '$msg_star_desc'
		'c $msg_warp'    '$msg_warp_desc'
		'd $msg_none'    '$msg_none_saver_desc'
		'$msg_timeout'   '$msg_timeout_desc'
	" # END-QUOTE

	size=$( eval f_dialog_menu_size \
	        	\"\$DIALOG_TITLE\"     \
	        	\"\$DIALOG_BACKTITLE\" \
	                \"\$prompt\"           \
	        	\"\$hline\"            \
	        	$menu_list             )

	case "$( f_sysrc_get saver )" in
	blank)       defaultitem="1 $msg_blank"  ;;
	beastie)     defaultitem="2 $msg_beastie";;
	daemon)      defaultitem="3 $msg_daemon" ;;
	dragon)      defaultitem="4 $msg_dragon" ;;
	fade)        defaultitem="5 $msg_fade"   ;;
	fire)        defaultitem="6 $msg_fire"   ;;
	green)       defaultitem="7 $msg_green"  ;;
	logo)        defaultitem="8 $msg_logo"   ;;
	rain)        defaultitem="9 $msg_rain"   ;;
	snake)       defaultitem="a $msg_snake"  ;;
	star)        defaultitem="b $msg_star"   ;;
	warp)        defaultitem="c $msg_warp"   ;;
	[Nn][Oo]|'') defaultitem="d $msg_none"   ;;
	esac

	local dialog_menu
	dialog_menu=$( eval $DIALOG \
		--title \"\$DIALOG_TITLE\"         \
		--backtitle \"\$DIALOG_BACKTITLE\" \
		--hline \"\$hline\"                \
		--ok-label \"\$msg_ok\"            \
		--cancel-label \"\$msg_cancel\"    \
		--default-item \"\$defaultitem\"   \
		--menu \"\$prompt\" $size          \
		$menu_list                         \
		2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
	)
	local retval=$?
	setvar DIALOG_MENU_$$ "$dialog_menu"
	return $retval
}

############################################################ MAIN

# Incorporate rc-file if it exists
[ -f "$HOME/.bsdconfigrc" ] && f_include "$HOME/.bsdconfigrc"

#
# Process command-line arguments
#
while getopts h$GETOPTS_STDARGS flag; do
	case "$flag" in
	h|\?) f_usage $BSDCFG_LIBE/$APP_DIR/USAGE "PROGRAM_NAME" "$pgm";;
	esac
done
shift $(( $OPTIND - 1 ))

#
# Initialize
#
f_dialog_title "$msg_system_console_screen_saver"
f_dialog_backtitle "${ipgm:+bsdconfig }$pgm"
f_mustberoot_init

#
# Launch application main menu
#
while :; do
	dialog_menu_main
	retval=$?
	mtag=$( f_dialog_menutag )

	[ $retval -eq 0 ] || f_die

	case "$mtag" in
	"1 $msg_blank") # Simply blank the screen
		f_sysrc_set saver "blank" || f_die
		break ;;
	"2 $msg_beastie") # "BSD Daemon" animated screen saver (graphics)
		f_sysrc_set saver "beastie" || f_die
		break ;;
	"3 $msg_daemon") # "BSD Daemon" animated screen saver (text)
		f_sysrc_set saver "daemon" || f_die
		break ;;
	"4 $msg_dragon") # Dragon screensaver (graphics)
		f_sysrc_set saver "dragon" || f_die
		break ;;
	"5 $msg_fade") # Fade out effect screen saver
		f_sysrc_set saver "fade" || f_die
		break ;;
	"6 $msg_fire") # Flames effect screen saver
		f_sysrc_set saver "fire" || f_die
		break ;;
	"7 $msg_green") # "Green" power saving mode (if supported by monitor)
		f_sysrc_set saver "green" || f_die
		break ;;
	"8 $msg_logo") # FreeBSD "logo" animated screen saver (graphics)
		f_sysrc_set saver "logo" || f_die
		break ;;
	"9 $msg_rain") # Rain drops screen saver
		f_sysrc_set saver "rain" || f_die
		break ;;
	"a $msg_snake") # Draw a FreeBSD "snake" on your screen
		f_sysrc_set saver "snake" || f_die
		break ;;
	"b $msg_star") # A "twinkling stars" effect
		f_sysrc_set saver "star" || f_die
		break ;;
	"c $msg_warp") # A "stars warping" effect
		f_sysrc_set saver "warp" || f_die
		break ;;
	"d $msg_none") # Disable the screensaver
		f_sysrc_set saver "NO" || f_die
		break ;;
	"$msg_timeout") # Set the screen saver timeout interval
		f_dialog_title "$msg_value_required"
		blanktime=$( f_dialog_input "$msg_enter_timeout_period" \
		                            "$( f_sysrc_get blanktime )"
		           ) && f_sysrc_set blanktime "$blanktime"
		f_dialog_title_restore
		;;
	esac
done

exit $SUCCESS

################################################################################
# END
################################################################################