#!/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.
#
# $FreeBSD$
#
############################################################ 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

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

############################################################ CONFIGURATION

#
# List of keymap names
#
KEYMAP_NAMES="
	belgian                  brazil_cp850             brazil_iso
	brazil_iso_accent        bulgarian_bds            bulgarian_phonetic
	central_european_iso     croatian_iso             czech_iso_accent
	danish_cp865             danish_iso               estonian_cp850
	estonian_iso             estonian_iso_15          finnish_cp850
	finnish_iso              french_iso               french_iso_accent
	french_iso_macbook       german_cp850             german_iso
	greek_101                greek_104                greek_elot
	hungarian_101            hungarian_102            icelandic
	icelandic_accent         italian                  japanese_106
	latin_american           latin_american_accent    norway_iso
	polish_iso               portuguese               portuguese_accent
	russia_koi8_r            slovak                   slovenian
	spanish                  spanish_accent           swedish_cp850
	swedish_iso              swiss_french_cp850       swiss_french_iso
	swiss_french_iso_accent  swiss_german_cp850       swiss_german_iso
	swiss_german_iso_accent  uk_cp850                 uk_iso
	ukrainian_koi8_u         ukrainian_koi8_u_koi8_r  usa_capslock_ctrl
	usa_dvorak               usa_dvorak_left          usa_dvorak_right
	usa_emacs                usa_iso                  usa_unix
" # END-QUOTE

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

# dialog_menu_main
#
# Display the dialog(1)-based application main menu.
#
dialog_menu_main()
{
	local prompt="$msg_keymap_menu_text"
	local menu_list defaultitem= # Calculated below
	local hline="$hline_choose_a_keyboard_map"

	#
	# Export variables for awk(1) ENVIRON visibility
	#
	local name
	for name in $KEYMAP_NAMES; do
		export msg_$name msg_${name}_desc
	done

	#
	# Generate a sorted list of keymaps. If the first letter of the keymap
	# name is unique (case-insensitive) then it is used as the tag to allow
	# the user to jump to that entry.
	#
	menu_list=$(
		for name in $KEYMAP_NAMES; do
			eval echo \"\$msg_$name\" msg_$name
		done | sort | awk 'BEGIN { prefix = "" }
		{
			cur_prefix = tolower(substr(ENVIRON[$NF], 1, 1))
			printf "'\''"
			if ( prefix != cur_prefix )
				prefix = cur_prefix
			else
				printf " "
			printf "%s'\'' '\''%s'\''\n",
			       ENVIRON[$NF], ENVIRON[$NF"_desc"]
		}'
	)

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

	case "$( f_sysrc_get keymap )" in
	be.iso)                defaultitem="$msg_belgian"                 ;;
	br275.cp850)           defaultitem="$msg_brazil_cp850"            ;;
	br275.iso)             defaultitem="$msg_brazil_iso"              ;;
	br275.iso.acc)         defaultitem="$msg_brazil_iso_accent"       ;;
	bg.bds.ctrlcaps)       defaultitem="$msg_bulgarian_bds"           ;;
	bg.phonetic.ctrlcaps)  defaultitem="$msg_bulgarian_phonetic"      ;;
	ce.iso2)               defaultitem="$msg_central_european_iso"    ;;
	hr.iso)                defaultitem="$msg_croatian_iso"            ;;
	cs.latin2.qwertz)      defaultitem="$msg_czech_iso_accent"        ;;
	danish.cp865)          defaultitem="$msg_danish_cp865"            ;;
	danish.iso)            defaultitem="$msg_danish_iso"              ;;
	estonian.cp850)        defaultitem="$msg_estonian_cp850"          ;;
	estonian.iso)          defaultitem="$msg_estonian_iso"            ;;
	estonian.iso15)        defaultitem="$msg_estonian_iso_15"         ;;
	finnish.cp850)         defaultitem="$msg_finnish_cp850"           ;;
	finnish.iso)           defaultitem="$msg_finnish_iso"             ;;
	fr.iso)                defaultitem="$msg_french_iso"              ;;
	fr.iso.acc)            defaultitem="$msg_french_iso_accent"       ;;
	fr.macbook.acc)        defaultitem="$msg_french_iso_macbook"      ;;
	german.cp850)          defaultitem="$msg_german_cp850"            ;;
	german.iso)            defaultitem="$msg_german_iso"              ;;
	gr.us101.acc)          defaultitem="$msg_greek_101"               ;;
	el.iso07)              defaultitem="$msg_greek_104"               ;;
	gr.elot.acc)           defaultitem="$msg_greek_elot"              ;;
	hu.iso2.101keys)       defaultitem="$msg_hungarian_101"           ;;
	hu.iso2.102keys)       defaultitem="$msg_hungarian_102"           ;;
	icelandic.iso)         defaultitem="$msg_icelandic"               ;;
	icelandic.iso.acc)     defaultitem="$msg_icelandic_accent"        ;;
	it.iso)                defaultitem="$msg_italian"                 ;;
	jp.106)                defaultitem="$msg_japanese_106"            ;;
	latinamerican)         defaultitem="$msg_latin_american"          ;;
	latinamerican.iso.acc) defaultitem="$msg_latin_american_accent"   ;;
	norwegian.iso)         defaultitem="$msg_norway_iso"              ;;
	pl_PL.ISO8859-2)       defaultitem="$msg_polish_iso"              ;;
	pt.iso)                defaultitem="$msg_portuguese"              ;;
	pt.iso.acc)            defaultitem="$msg_portuguese_accent"       ;;
	ru.koi8-r)             defaultitem="$msg_russia_koi8_r"           ;;
	sk.iso2)               defaultitem="$msg_slovak"                  ;;
	si.iso)                defaultitem="$msg_slovenian"               ;;
	spanish.iso)           defaultitem="$msg_spanish"                 ;;
	spanish.iso.acc)       defaultitem="$msg_spanish_accent"          ;;
	swedish.cp850)         defaultitem="$msg_swedish_cp850"           ;;
	swedish.iso)           defaultitem="$msg_swedish_iso"             ;;
	swissfrench.cp850)     defaultitem="$msg_swiss_french_cp850"      ;;
	swissfrench.iso)       defaultitem="$msg_swiss_french_iso"        ;;
	swissfrench.iso.acc)   defaultitem="$msg_swiss_french_iso_accent" ;;
	swissgerman.cp850)     defaultitem="$msg_swiss_german_cp850"      ;;
	swissgerman.iso)       defaultitem="$msg_swiss_german_iso"        ;;
	swissgerman.iso.acc)   defaultitem="$msg_swiss_german_iso_accent" ;;
	uk.cp850)              defaultitem="$msg_uk_cp850"                ;;
	uk.iso)                defaultitem="$msg_uk_iso"                  ;;
	ua.koi8-u)             defaultitem="$msg_ukrainian_koi8_u"        ;;
	ua.koi8-u.shift.alt)   defaultitem="$msg_ukrainian_koi8_u_koi8_r" ;;
	us.pc-ctrl)            defaultitem="$msg_usa_capslock_ctrl"       ;;
	us.dvorak)             defaultitem="$msg_usa_dvorak"              ;;
	us.dvorakl)            defaultitem="$msg_usa_dvorak_left"         ;;
	us.dvorakr)            defaultitem="$msg_usa_dvorak_right"        ;;
	us.emacs)              defaultitem="$msg_usa_emacs"               ;;
	us.iso)                defaultitem="$msg_usa_iso"                 ;;
	us.unix)               defaultitem="$msg_usa_unix"                ;;
	esac

	# The defaultitem may have to be indented to match the menu_list
	if [ "$defaultitem" ]; then
		( eval set -- $menu_list
		  while [ $# -gt 0 ]; do
		  	[ "$defaultitem" = "$1" ] && break
		  	[ " $defaultitem" = "$1" ] && exit 0
		  	shift 2 # tag/item
		  done
		  exit 1 # No modification needed
		) && defaultitem=" $defaultitem"
	fi

	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 "$msg_system_console_keymap"
f_dialog_backtitle "${ipgm:+bsdconfig }$pgm"
f_mustberoot_init

#
# Launch application main menu
#
while :; do
	dialog_menu_main || f_die
	f_dialog_menutag_fetch mtag

	#
	# Reverse the users choice into the variable name
	#
	keymap_name=
	mtag="${mtag# }" # remove single leading-space if-present
	for name in $KEYMAP_NAMES; do
		debug= f_getvar msg_$name msg
		[ "$msg" = "$mtag" ] && keymap_name="$name" break
	done

	[ "$keymap_name" ] || continue

	keymap_to_set=
	case "$keymap_name" in
	belgian)                 keymap_to_set="be.iso"                ;;
	brazil_cp850)            keymap_to_set="br275.cp850"           ;;
	brazil_iso)              keymap_to_set="br275.iso"             ;;
	brazil_iso_accent)       keymap_to_set="br275.iso.acc"         ;;
	bulgarian_bds)           keymap_to_set="bg.bds.ctrlcaps"       ;;
	bulgarian_phonetic)      keymap_to_set="bg.phonetic.ctrlcaps"  ;;
	central_european_iso)    keymap_to_set="ce.iso2"               ;;
	croatian_iso)            keymap_to_set="hr.iso"                ;;
	czech_iso_accent)        keymap_to_set="cs.latin2.qwertz"      ;;
	danish_cp865)            keymap_to_set="danish.cp865"          ;;
	danish_iso)              keymap_to_set="danish.iso"            ;;
	estonian_cp850)          keymap_to_set="estonian.cp850"        ;;
	estonian_iso)            keymap_to_set="estonian.iso"          ;;
	estonian_iso_15)         keymap_to_set="estonian.iso15"        ;;
	finnish_cp850)           keymap_to_set="finnish.cp850"         ;;
	finnish_iso)             keymap_to_set="finnish.iso"           ;;
	french_iso)              keymap_to_set="fr.iso"                ;;
	french_iso_accent)       keymap_to_set="fr.iso.acc"            ;;
	french_iso_macbook)      keymap_to_set="fr.macbook.acc"        ;;
	german_cp850)            keymap_to_set="german.cp850"          ;;
	german_iso)              keymap_to_set="german.iso"            ;;
	greek_101)               keymap_to_set="gr.us101.acc"          ;;
	greek_104)               keymap_to_set="el.iso07"              ;;
	greek_elot)              keymap_to_set="gr.elot.acc"           ;;
	hungarian_101)           keymap_to_set="hu.iso2.101keys"       ;;
	hungarian_102)           keymap_to_set="hu.iso2.102keys"       ;;
	icelandic)               keymap_to_set="icelandic.iso"         ;;
	icelandic_accent)        keymap_to_set="icelandic.iso.acc"     ;;
	italian)                 keymap_to_set="it.iso"                ;;
	japanese_106)            keymap_to_set="jp.106"                ;;
	latin_american)          keymap_to_set="latinamerican"         ;;
	latin_american_accent)   keymap_to_set="latinamerican.iso.acc" ;;
	norway_iso)              keymap_to_set="norwegian.iso"         ;;
	polish_iso)              keymap_to_set="pl_PL.ISO8859-2"       ;;
	portuguese)              keymap_to_set="pt.iso"                ;;
	portuguese_accent)       keymap_to_set="pt.iso.acc"            ;;
	russia_koi8_r)           keymap_to_set="ru.koi8-r"             ;;
	slovak)                  keymap_to_set="sk.iso2"               ;;
	slovenian)               keymap_to_set="si.iso"                ;;
	spanish)                 keymap_to_set="spanish.iso"           ;;
	spanish_accent)          keymap_to_set="spanish.iso.acc"       ;;
	swedish_cp850)           keymap_to_set="swedish.cp850"         ;;
	swedish_iso)             keymap_to_set="swedish.iso"           ;;
	swiss_french_cp850)      keymap_to_set="swissfrench.cp850"     ;;
	swiss_french_iso)        keymap_to_set="swissfrench.iso"       ;;
	swiss_french_iso_accent) keymap_to_set="swissfrench.iso.acc"   ;;
	swiss_german_cp850)      keymap_to_set="swissgerman.cp850"     ;;
	swiss_german_iso)        keymap_to_set="swissgerman.iso"       ;;
	swiss_german_iso_accent) keymap_to_set="swissgerman.iso.acc"   ;;
	uk_cp850)                keymap_to_set="uk.cp850"              ;;
	uk_iso)                  keymap_to_set="uk.iso"                ;;
	ukrainian_koi8_u)        keymap_to_set="ua.koi8-u"             ;;
	ukrainian_koi8_u_koi8_r) keymap_to_set="ua.koi8-u.shift.alt"   ;;
	usa_capslock_ctrl)       keymap_to_set="us.pc-ctrl"            ;;
	usa_dvorak)              keymap_to_set="us.dvorak"             ;;
	usa_dvorak_left)         keymap_to_set="us.dvorakl"            ;;
	usa_dvorak_right)        keymap_to_set="us.dvorakr"            ;;
	usa_emacs)               keymap_to_set="us.emacs"              ;;
	usa_iso)                 keymap_to_set="us.iso"                ;;
	usa_unix)                keymap_to_set="us.unix"               ;;
	esac

	if [ "$keymap_to_set" ]; then
		f_eval_catch "$0" f_sysrc_set \
			'f_sysrc_set keymap "%s"' "$keymap_to_set" || f_die
		break
	else
		f_die 1 "$msg_unknown_keymap"
	fi
done

exit $SUCCESS

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