#!/bin/sh

PREFIX=%%PREFIX%%
EMACSDIR=%%EMACSDIR%%
ELISPDIR=%%ELISPDIR%%
SAMPLEDIR=%%SAMPLEDIR%%

AWK=%%AWK%%
CAT=%%CAT%%
CP=%%CP%%
ECHO=%%ECHO%%
MKDIR="%%MKDIR%%"
RM=%%RM%%
SED=%%SED%%
TOUCH=%%TOUCH%%
DIALOG=/usr/bin/dialog

select()
{
	local Language key
	Language="\
Choose a language when you write mails.\n\
    (Now is \"${language}\" selected.)"
	${DIALOG} --title "Choose the Language" \
	--hline "Select Items and Quit when finished" \
	--menu "${Language}" -1 -1 2 \
	English		"English" \
	Japanese	"japanese" \
		2>	/tmp/menu.$$
	retval=$?
	key=`${CAT} /tmp/menu.$$|${SED} -e 's/\"//g'`
	${RM} -f /tmp/menu.$$
	case $retval in
		0) if [ -z ${key} ]; then return; fi ;;
		1) return ;;
		255) return ;;
	esac
	language=${key}
#	echo citation:key=${key},dot_emacs=${dot_emacs}>>/tmp/temp
}

input_data()
# argument No.1 ($1) : Key words (string)
# argument No.2 ($2) : Variable for the Key words (string)
# argument No.3 ($3) : unit for the variable (string)
{
	local key
#	echo '$1='$1
#	echo '$2='$2
#	echo '$3='$3
#	exit 1
#	echo '${nameserver}='${mail_address}
#	eval echo '${'$2'}'
	eval key='${'$2'}'
#	echo key=${key}
#	exit 1
	if [ ! -z ${key} ]; then
		${DIALOG} --title "Confirm $1" \
		--hline "Press Yes/No" \
		--yesno "$1 $3 has set \"${key}\". Is this OK?" -1 -1
		retval=$?
		if [ X"${retval}" = "X0" -o X"${retval}" = "X255" ]; then  return; fi
	fi
	${DIALOG} --title "Set $1 $3" \
	--hline "Write $1 $3" \
	--inputbox "Specify $1 $3" -1 -1 \
		2>  /tmp/input.$$
	eval $2=`${CAT} /tmp/input.$$`
	${RM} -f /tmp/input.$$
}

options()
{
	local Options keys del_keys
	Options="\
Please select Mew functions that you want to. To select a function, \n\
use the arrow keys to move to it and press [SPACE]. To de-select it, \n\
press [SPACE] again.  Select OK or Cancel to leave this menu."
	del_keys="Highlight Citation Cite_Change Sign_Change"
	${DIALOG} --title "Select Mew functions" \
	--hline "" \
	--checklist "${Options}" -1 -1 4 \
	Highlight	"highlight body for Mew(Japanese)" ${options_Highlight} \
	Citation	"Citation with the mail." ${options_Citation} \
	Cite_Change	"Change citation English <--> Japanese." ${options_Cite_Change} \
	Sign_Change	"Change signature English <--> Japanese." ${options_Sign_Change} \
		2> /tmp/checklist.$$
	retval=$?
	keys=`${CAT} /tmp/checklist.$$|${SED} -e 's/\"//g'`
	${RM} -f /tmp/checklist.$$
	case $retval in
		1)   return ;;
		255) return ;;
	esac
	dot_emacs=""
#	echo keys=$keys
	for k in ${keys}; do
		del_keys=`${ECHO} ${del_keys}|${SED} -e "s/ *${k}//g"`
#		echo del_keys=${del_keys}
#		echo k=$k
		case ${k} in
		Highlight)
			dot_emacs="${dot_emacs} dot.emacs-highlight-body.el"
			options_Highlight=ON
			;;
		Citation)
			citation
#			echo options:key=${k},dot_emacs=${dot_emacs}>>/tmp/temp
			options_Citation=ON
			;;
		Cite_Change)
			dot_emacs="${dot_emacs} dot.emacs-cite-change.el"
			options_Cite_Change=ON
			;;
		Sign_Change)
			dot_emacs="${dot_emacs} dot.emacs-signature-change.el"
			options_Sign_Change=ON
			;;
		esac
	done
#	exit 1
	for k in ${del_keys}; do
#		echo k=$k
		case ${k} in
		Highlight)
			dot_emacs=`${ECHO} ${dot_emacs}|${SED} -e "s/ *dot\.emacs-highlight-body\.el//"`
			options_Highlight=OFF
			;;
		Citation)
			options_Citation=OFF
			;;
		Cite_Change)
			dot_emacs=`${ECHO} ${dot_emacs}|${SED} -e "s/ *dot\.emacs-cite-change\.el//"`
			options_Cite_Change=OFF
			;;
		Sign_Change)
			dot_emacs=`${ECHO} ${dot_emacs}|${SED} -e "s/ *dot\.emacs-signature-change\.el//"`
			options_Sign_Change=OFF
			;;
		esac
	done
#	echo dot_emacs=${dot_emacs}
#	echo del_keys=${del_keys}
#	exit 1
}

citation()
{
	dot_emacs=`${ECHO} ${dot_emacs}|${SED} -e "s/ *dot\.emacs-cite.[a-z]*//g"`
	case ${language} in
	English)
		dot_emacs="${dot_emacs} dot.emacs-cite.el"
		;;
	Japanese)
		dot_emacs="${dot_emacs} dot.emacs-cite.ja.el"
		;;
	esac
#	echo citation:key=${key},dot_emacs=${dot_emacs}>>/tmp/temp
}

case ${TERM} in
emacs)
	${ECHO} "Here is \"Emacs\" shell. Try on other terminal."
	exit 1
	;;
esac

version="%%VERSION%%"
#version="1.92"

SEDCMD='${SED}
	-e "s,%%prefix%%,${PREFIX},g"
	-e "s,%%emacsdir%%,${EMACSDIR},g"
	-e "s,%%elispdir%%,${ELISPDIR},g"
	-e "s,%%version%%,${version},g"
	-e "s,%%nameserver%%,${nameserver},g"
	-e "s,%%mail_address%%,${mail_address},g"
	-e "s,%%domain_name%%,${domain_name},g"
	-e "s,%%default_domain_name%%,${default_domain_name},g"
	-e "s,%%signature%%,${signature},g"'

###
# Check ~/.backup directory exist.
#
${MKDIR} ${HOME}/.backup

###
# Backup all files.
#
${CP} ${HOME}/${dot_emacs_file} ${HOME}/.backup/${dot_emacs_file}.$$
${CP} ${HOME}/.im/Config ${HOME}/.backup/Config.$$

###
# Check ~/.im/Config file exist.
#
if [ ! -f ${HOME}/.im/Config ]; then
	${ECHO} "${HOME}/.im/Config: Not found. Do imsetup first."
	exit 1
else
	mail_address=`${AWK} '/^Address=/{sub(/^Address=/,"");print}' ${HOME}/.im/Config`
	domain_name=`${AWK} '/^FromDomain=/{sub(/^FromDomain=/,"");print}' ${HOME}/.im/Config`
	default_domain_name=`${AWK} '/^ToDomain=/{sub(/^ToDomain=/,"");print}' ${HOME}/.im/Config`
	if [ X"${mail_address}" = "X%%mail_address%%" ]; then
		mail_address=""
	else
		${CP} ${HOME}/.im/Config ${HOME}/.backup/Config
		${SED} -e 's/^\(Address=\).*$/\1%%mail_address%%/' \
			< ${HOME}/.backup/Config > ${HOME}/.im/Config
	fi
	if [ X"${domain_name}" = "X%%domain_name%%" ]; then
		domain_name=""
	else
		${CP} ${HOME}/.im/Config ${HOME}/.backup/Config
		${SED} -e 's/^\(FromDomain=\).*$/\1%%domain_name%%/' \
			< ${HOME}/.backup/Config > ${HOME}/.im/Config
	fi
	if [ X"${default_domain_name}" = "X%%default_domain_name%%" ]; then
		default_domain_name=""
	else
		${CP} ${HOME}/.im/Config ${HOME}/.backup/Config
		${SED} -e 's/^\(ToDomain=\).*$/\1%%default_domain_name%%/' \
			< ${HOME}/.backup/Config > ${HOME}/.im/Config
	fi
fi

###
# Copy "aliases" if none
#
if [ ! -f ${HOME}/.im/Aliases ]; then	
	${CP} ${SAMPLEDIR}/Aliases ${HOME}/.im
fi

###
# Set user environment : nameserver, signature
#
options_Highlight=OFF
options_Citation=OFF
options_Cite_Change=OFF
options_Sign_Change=OFF
language=English
dot_emacs_file=.emacs

PreSet="\
This is the main menu of the Mew configuration pre-settings. Please \n\
select one of the options below by using the arrow keys or typing the \n\
first character of the option name you intend to set. Invoke an option \n\
by pressing [ENTER] or [TAB-ENTER] to exit the settings."

answer=None
while [ ! X"${answer}" = "XQuit" ]; do
	${DIALOG} --title "Pre-set Mew configurations" \
	--hline "To select an item press [Enter] on the item" \
	--menu "${PreSet}" -1 -1 3 \
	Language	"Determine language in use on Mew" \
	DotEmacs	"Choose dot.emacs files being to use" \
	Quit		"Quit this menu" \
		2>	/tmp/menu.$$
	retval=$?
	answer=`${CAT} /tmp/menu.$$|${SED} -e 's/\"//g'`
	${RM} -f /tmp/menu.$$
	case $retval in
		0) if [ -z ${answer} ]; then ${ECHO} "Nothing selected"; contiue; fi ;;
		1) break ;;
		255) break ;;
	esac
	case ${answer} in
		Language)
			select
			;;
		DotEmacs)
			input_data "Emacs dot.emacs file name" "dot_emacs_file" ""
			;;
		Quit)
			answer=Quit
			;;
	esac
done

#echo language=${language}
#echo dot_emacs_file=${dot_emacs_file}
#exit 1

MainMenu="\
This is the main menu of the Mew configuration settings. Please select \n\
one of the options below by using the arrow keys or typing the first \n\
character of the option name you intend to set. Invoke an option by \n\
pressing [ENTER] or [TAB-ENTER] to exit the settings."

answer=None
while [ ! X"${answer}" = "XQuit" ]; do
	${DIALOG} --title "Set Mew configurations" \
	--hline "Select Items and Quit when finished" \
	--menu "${MainMenu}" -1 -1 6 \
	NameServer	"Name server Domain name" \
	MailAddress	"Your mail address (with FQDN)" \
	DomainName	"Your domain name" \
	DefaultDomain	"Default domain name in abbrivation" \
	Options		"Various options on using Mew" \
	Quit		"Quit this menu" \
		2>	/tmp/menu.$$
	retval=$?
	answer=`${CAT} /tmp/menu.$$`
	${RM} -f /tmp/menu.$$
	case $retval in
		0)	if [ -z ${answer} ]; then
				${ECHO} "Nothing selected"
				exit 1
			fi
			;;
		1)	${ECHO} "Cancel pressed."
			exit 1
			;;
		255)	${ECHO} "ESC pressed."
			exit 1
			;;
	esac
	case ${answer} in
		NameServer)
			input_data "Name Server" "nameserver" ""
			;;
		MailAddress)
			input_data "Mail Address" "mail_address" ""
			;;
		DomainName)
			input_data "Domain Name" "domain_name" ""
			;;
		DefaultDomain)
			input_data "Default Domain Name" "default_domain_name" ""
			;;
		Options)
#			options
			;;
		Quit)
			answer=Quit
			;;
	esac
done

#echo 'nameserver='${nameserver}
#echo 'mail_address='${mail_address}
#echo 'domain_name='${domain_name}
#echo 'defaut_domain_name='${default_domain_name}

#exit 1

###
# Custumize startup files with selected options.
#
dot_emacs="dot.emacs.el ${dot_emacs}"
eval ${SEDCMD} < ${HOME}/.im/Config > ${HOME}/.backup/Config

###
# Add Mew startup setting to ~/.emacs
#
if [ -f ${dot_emacs_file} ]; then
    ${SED} -e '/^;;;* Mew ;*$/,/^;;; *Mew end$/d' < ${HOME}/${dot_emacs_file} \
	> ${HOME}/.backup/${dot_emacs_file}
else
    ${ECHO} "Create new \"dot.emacs\" file: ${dot_emacs_file}"
fi

#echo 'dot_emacs='${dot_emacs}
for f in ${dot_emacs}; do
	${CAT} ${SAMPLEDIR}/dot.emacs/${f} |\
		eval ${SEDCMD} >> ${HOME}/.backup/${dot_emacs_file}
done
${ECHO} ";;;                                                       Mew end" \
	>> ${HOME}/.backup/${dot_emacs_file}
${CP} ${HOME}/.backup/${dot_emacs_file} ${HOME}/${dot_emacs_file}

###
# Copy im Config file  to ~/.im
#
${CP} ${HOME}/.backup/Config ${HOME}/.im/Config