#!/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 (INCLUDING, 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.
#
#
############################################################ 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

f_index_menusel_keyword $BSDCFG_LIBE/$APP_DIR/INDEX "$pgm" ipgm &&
	pgm="${ipgm:-$pgm}"

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

# dialog_menu_main
#
# Display the dialog(1)-based application main menu.
#
dialog_menu_main()
{
	local prompt="$msg_saver_menu_text"
	local menu_list="
		'1 $msg_none'    '$msg_none_saver_desc'
		'2 $msg_blank'   '$msg_blank_desc'
		'3 $msg_beastie' '$msg_beastie_desc'
		'4 $msg_daemon'  '$msg_daemon_desc'
		'5 $msg_dragon'  '$msg_dragon_desc'
		'6 $msg_fade'    '$msg_fade_desc'
		'7 $msg_fire'    '$msg_fire_desc'
		'8 $msg_green'   '$msg_green_desc'
		'9 $msg_logo'    '$msg_logo_desc'
		'a $msg_rain'    '$msg_rain_desc'
		'b $msg_snake'   '$msg_snake_desc'
		'c $msg_star'    '$msg_star_desc'
		'd $msg_warp'    '$msg_warp_desc'
		'$msg_timeout'   '$msg_timeout_desc'
	" # END-QUOTE
	local defaultitem= # Calculated below
	local hline="$hline_choose_a_screen_saver"

	local height width rows
	eval f_dialog_menu_size height width rows \
	                        \"\$DIALOG_TITLE\"     \
	                        \"\$DIALOG_BACKTITLE\" \
	                        \"\$prompt\"           \
	                        \"\$hline\"            \
	                        $menu_list

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

	local menu_choice
	menu_choice=$( eval $DIALOG \
		--title \"\$DIALOG_TITLE\"         \
		--backtitle \"\$DIALOG_BACKTITLE\" \
		--hline \"\$hline\"                \
		--ok-label \"\$msg_ok\"            \
		--cancel-label \"\$msg_cancel\"    \
		--default-item \"\$defaultitem\"   \
		--menu \"\$prompt\"                \
		$height $width $rows               \
		$menu_list                         \
		2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
	)
	local retval=$?
	f_dialog_menutag_store -s "$menu_choice"
	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
#
dialog_menu_main || f_die
f_dialog_menutag_fetch mtag

case "$mtag" in
"$msg_timeout") # Set the screen saver timeout interval
	f_dialog_title "$msg_value_required"
	f_dialog_input blanktime "$msg_enter_timeout_period" \
	               "$( f_sysrc_get blanktime )" &&
		f_eval_catch "$0" f_sysrc_set \
			'f_sysrc_set blanktime "%s"' "$blanktime" || f_die
	f_dialog_title_restore
	exit $SUCCESS
esac

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

if [ "$saver_to_set" ]; then
	f_eval_catch "$0" f_sysrc_set \
		'f_sysrc_set saver "%s"' "$saver_to_set" || f_die
	break
else
	f_die 1 "$msg_unknown_saver"
fi

exit $SUCCESS

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