#!/bin/sh

#
#  Here we get the $XCINVERSION, $ENV and $PREPATH from environment variable.
#
conf=config.status
showmenu=$1
predefined_ostype=`ls script/os_def`

pwd=`pwd`
if [ "`basename $pwd`" = script ]; then
    cd ..
fi

get_ostype()
{
    the_ostype=`uname`
    if [ "$the_ostype" = 'SunOS' ]; then
	the_release=`uname -a | awk '{print $3}' | sed 's/\(.\).*/\1/'`
	the_ostype="$the_ostype$the_release"
	unset the_release
    fi
}

get_word()
{
    file=$1
    word=$2

    grep "$word=" $file | sed "s/$word=\(.*\)/\1/"
    unset file word
}

load_configure()
{
    cf=$1
    OS=`get_word $cf OS`
    CFLAGS=`get_word $cf CFLAGS`
    CC=`get_word $cf CC`
    XINC=`get_word $cf XINC`
    XLIB=`get_word $cf XLIB`

    INSTALL_XCIN=`get_word $cf INSTALL_XCIN`
    INSTALL_INPTABS=`get_word $cf INSTALL_INPTABS`
    INSTALL_DOCS=`get_word $cf INSTALL_DOCS`
    INSTALL_UTILS=`get_word $cf INSTALL_UTILS`
    
    PATH_XCIN_PREFIX=`get_word $cf PATH_XCIN_PREFIX`
    PATH_XCIN_BIN=`get_word $cf PATH_XCIN_BIN`
    PATH_XCIN_DIR=`get_word $cf PATH_XCIN_DIR`
    PATH_XCIN_MAN=`get_word $cf PATH_XCIN_MAN`

    OPT_XCIN_CFONT=`get_word $cf OPT_XCIN_CFONT`
    OPT_XCIN_EFONT=`get_word $cf OPT_XCIN_EFONT`
    OPT_UTIL_CIN2TAB=`get_word $cf OPT_UTIL_CIN2TAB`
    OPT_UTIL_TSINTOOLS=`get_word $cf OPT_UTIL_TSINTOOLS`
    OPT_INPTAB_SRC=`get_word $cf OPT_INPTAB_SRC`
    OPT_INPTAB_PHONE=`get_word $cf OPT_INPTAB_PHONE`
    OPT_INPTAB_PINYIN=`get_word $cf OPT_INPTAB_PINYIN`
    OPT_INPTAB_CJ=`get_word $cf OPT_INPTAB_CJ`
    OPT_INPTAB_ZBOSH=`get_word $cf OPT_INPTAB_ZBOSH`
    OPT_INPTAB_CANTON=`get_word $cf OPT_INPTAB_CANTON`
    OPT_INPTAB_AR30=`get_word $cf OPT_INPTAB_AR30`
    unset cf
}

load_os_def()
{
    osdef="script/os_def/$1"
    if [ -f "$osdef" ]; then
        OS=`get_word $osdef OS`
        CFLAGS=`get_word $osdef CFLAGS`
        CC=`get_word $osdef CC`
        XINC=`get_word $osdef XINC`
        XLIB=`get_word $osdef XLIB`
    fi
    OS=$1
    unset osdef
}


##########################################################################
##########################################################################

myecho() {
    echo "$1\c"
}
if [ -z "`echo -n test | grep n`" ]; then 
    ECHO='echo -n'
else
    ECHO='myecho'
fi

print_menu()
{
    clear
    cat << EOF
<<< Welcome to Configuration Program of $XCINVERSION >>>

[E]Environment: $OS
    [C]C Compiler: $CC
    [F]CFLAGS: $CFLAGS
    [I]X Include: $XINC    
    [L]X Library: $XLIB
Packages:
    [X]Xcin -------------------  <$INSTALL_XCIN>
       Options: C_Font=$OPT_XCIN_CFONT 
                E_Font=$OPT_XCIN_EFONT
    [T]Input Tables -----------  <${INSTALL_INPTABS}>
       Options: Src=<$OPT_INPTAB_SRC> Tab: $opt_inptabs
    [U]Utilities --------------  <${INSTALL_UTILS}>
       Options: $opt_utils
    [D]Documentations ---------  <${INSTALL_DOCS}>
Paths:
    [0]Prefix:		 $PATH_XCIN_PREFIX
    [1]Binaries:         $PATH_XCIN_BIN
    [2]Xcin main path:   $PATH_XCIN_DIR
    [3]Xcin manual path: $PATH_XCIN_MAN
[H]Help;   [S]Save and Continue;   [O]Save the OS Def;   [Q]Quit and Stop;

EOF
    $ECHO 'Your choice [ECFILXTDU0123HSOQ]: '
}


##########################################################################
##########################################################################

set_opt_inptabs()
{
    opt_inptabs=""
    if [ "$OPT_INPTAB_PHONE" = yes ]; then
	opt_inptabs="${opt_inptabs}phone "
    fi
    if [ "$OPT_INPTAB_PINYIN" = yes ]; then
	opt_inptabs="${opt_inptabs}pinyin "
    fi
    if [ "$OPT_INPTAB_CJ" = yes ]; then
	opt_inptabs="${opt_inptabs}cj "
    fi
    if [ "$OPT_INPTAB_ZBOSH" = yes ]; then
	opt_inptabs="${opt_inptabs}zbosh "
    fi
    if [ "$OPT_INPTAB_CANTON" = yes ]; then
	opt_inptabs="${opt_inptabs}canton "
    fi
    if [ "$OPT_INPTAB_AR30" = yes ]; then
	opt_inptabs="${opt_inptabs}ar30 "
    fi
}

set_opt_utils()
{
    opt_utils=""
    if [ "$OPT_UTIL_CIN2TAB" = yes ]; then
	opt_utils="${opt_utils}cin2tab "
    fi
    if [ "$OPT_UTIL_TSINTOOLS" = yes ]; then
	opt_utils="${opt_utils}tsintools "
    fi
}


##########################################################################
##########################################################################

set_yes_no()
{
    read opt
    case "$opt" in
    y|Y)    echo yes
	    ;;
    n|N)    echo no
	    ;;
    esac
}

change_yes_no()
{
    if [ "$1" = yes ]; then
	echo no
    else
	echo yes
    fi
}

set_xcin_menu()
{
    while [ 1 ]; do
	cat << EOF
Options: [0]C_Font=$OPT_XCIN_CFONT
         [1]E_Font=$OPT_XCIN_EFONT
         [M]Main menu
EOF
	$ECHO "Please select one [01M]: "
	read opt
	case "$opt" in
	0)  $ECHO "Please input the Chinese font name: "
	    read opt
	    OPT_XCIN_CFONT=$opt
	    ;;
	1)  $ECHO "Please input the English font name: "
	    read opt
	    OPT_XCIN_EFONT=$opt
	    ;;
	m|M)break
	    ;;
	esac
    done
    unset opt
}

set_inptab_menu()
{
    while [ 1 ]; do
	cat << EOF
Options: [0]Install the source of the inptab (.cin): <$OPT_INPTAB_SRC>
         [1]Phone:     <$OPT_INPTAB_PHONE>
         [2]Pin-Yin:   <$OPT_INPTAB_PINYIN>
         [3]ChangJei:  <$OPT_INPTAB_CJ>
         [4]zmd-Bosh:  <$OPT_INPTAB_ZBOSH>
         [5]Cantonese: <$OPT_INPTAB_CANTON>
         [6]Array30: <$OPT_INPTAB_AR30>
         [M]Main menu
EOF
	$ECHO "Please select one [01M]: "
	read opt
	case "$opt" in
	0)  OPT_INPTAB_SRC=`change_yes_no $OPT_INPTAB_SRC`
	    ;;
	1)  OPT_INPTAB_PHONE=`change_yes_no $OPT_INPTAB_PHONE`
	    ;;
	2)  OPT_INPTAB_PINYIN=`change_yes_no $OPT_INPTAB_PINYIN`
	    ;;
	3)  OPT_INPTAB_CJ=`change_yes_no $OPT_INPTAB_CJ`
	    ;;
	4)  OPT_INPTAB_ZBOSH=`change_yes_no $OPT_INPTAB_ZBOSH`
	    ;;
	5)  OPT_INPTAB_CANTON=`change_yes_no $OPT_INPTAB_CANTON`
	    ;;
	6)  OPT_INPTAB_CANTON=`change_yes_no $OPT_INPTAB_AR30`
	    ;;
	m|M)break
	    ;;
	esac
    done	
    unset opt
}

set_util_menu()
{
    while [ 1 ]; do
	cat << EOF
Options: [0]cin2tab: input table convertor --------- <$OPT_UTIL_CIN2TAB>
         [1]tsintools: tsin manage tools ----------- <$OPT_UTIL_TSINTOOLS>
         [M]Main menu
EOF
	$ECHO "Please select one [01M]: "
	read opt
	case "$opt" in
	0)  OPT_UTIL_CIN2TAB=`change_yes_no $OPT_UTIL_CIN2TAB`
	    ;;
	1)  OPT_UTIL_TSINTOOLS=`change_yes_no $OPT_UTIL_TSINTOOLS`
	    ;;
	m|M)break
	    ;;
	esac
    done
    unset opt
}

set_prefix()
{
    PATH_XCIN_PREFIX=$1
    PATH_XCIN_BIN=$PATH_XCIN_PREFIX/X11R6/bin
    PATH_XCIN_DIR=$PATH_XCIN_PREFIX/lib/xcin
    PATH_XCIN_MAN=$PATH_XCIN_PREFIX/X11R6/man
}

##########################################################################
##########################################################################

save_config_status()
{
    cat > config.status << EOF
OS=$OS
CC=$CC
CFLAGS=$CFLAGS
XINC=$XINC
XLIB=$XLIB

INSTALL_XCIN=$INSTALL_XCIN
INSTALL_INPTABS=$INSTALL_INPTABS
INSTALL_DOCS=$INSTALL_DOCS
INSTALL_UTILS=$INSTALL_UTILS

PATH_XCIN_PREFIX=$PATH_XCIN_PREFIX
PATH_XCIN_BIN=$PATH_XCIN_BIN
PATH_XCIN_DIR=$PATH_XCIN_DIR
PATH_XCIN_MAN=$PATH_XCIN_MAN

OPT_XCIN_CFONT=$OPT_XCIN_CFONT
OPT_XCIN_EFONT=$OPT_XCIN_EFONT
OPT_UTIL_CIN2TAB=$OPT_UTIL_CIN2TAB
OPT_UTIL_TSINTOOLS=$OPT_UTIL_TSINTOOLS
OPT_INPTAB_SRC=$OPT_INPTAB_SRC
OPT_INPTAB_PHONE=$OPT_INPTAB_PHONE
OPT_INPTAB_PINYIN=$OPT_INPTAB_PINYIN
OPT_INPTAB_CJ=$OPT_INPTAB_CJ
OPT_INPTAB_ZBOSH=$OPT_INPTAB_ZBOSH
OPT_INPTAB_CANTON=$OPT_INPTAB_CANTON
OPT_INPTAB_AR30=$OPT_INPTAB_AR30
EOF
}

save_os_def()
{
    cat > script/os_def/$OS << EOF
OS=$OS
CC=$CC
CFLAGS=$CFLAGS
XINC=$XINC
XLIB=$XLIB
EOF
}

##########################################################################
##########################################################################

#
#  Main program
#
if [ -f $conf ]; then
    load_configure $conf
else
    load_configure script/$conf
fi

if [ ! -z "$ENV" ]; then
    load_os_def $ENV
else
    get_ostype
    if [ -f script/os_def/$the_ostype ]; then
	load_os_def $the_ostype
    fi
fi
if [ ! -z "$PREPATH" ]; then
    set_prefix $PREPATH
fi

if [ "$showmenu" = 0 ]; then
    save_config_status
    exit 0
fi
    

set_opt_inptabs
set_opt_utils
while [ 1 ]; do
    print_menu
    read cmd

    case "$cmd" in
    e | E)
	echo "The pre-defined OS type are: "
	echo "    "$predefined_ostype
	echo " "
	$ECHO "Please input the OS type: "
	read cmd
	load_os_def $cmd
	;;
    c | C)
	$ECHO "Please input the name of the C Compiler: "
	read cmd
	CC=$cmd
	;;
    f | F)
	$ECHO "Please input the C Flags: "
	read cmd
	CFLAGS=$cmd
	;;
    i | I)
	$ECHO "Please input the X Include Path: "
	read cmd
	XINC=$cmd
	;;
    l | L)
	$ECHO "Please input the X Library Path: "
	read cmd
	XLIB=$cmd
	;;
    x | X)
	$ECHO "Do you want to install xcin [y/n]? "
	INSTALL_XCIN=`set_yes_no`
        if [ "$INSTALL_XCIN" = yes ]; then
	    set_xcin_menu
        fi
	;;
    t | T)
	$ECHO "Do you want to install input tables [y/n]? "
	INSTALL_INPTABS=`set_yes_no`
	if [ "$INSTALL_INPTABS" = yes ]; then
	    set_inptab_menu
	    set_opt_inptabs
	fi
	;;
    d | D)
	$ECHO "Do you want to install the documentataions [y/n]? "
	INSTALL_DOCS=`set_yes_no`
	;;
    u | U)
	$ECHO "Do you want to install the utilities [y/n]? "
	INSTALL_UTILS=`set_yes_no`
	if [ "$INSTALL_UTILS" = yes ]; then
	    set_util_menu
	    set_opt_utils
	fi
	;;
    0)
	$ECHO "Please input the prefix path: "
	read opt
	set_prefix $opt
	;;
    1)
	$ECHO "Please input the binaries path: "
	read opt
	PATH_XCIN_BIN=$opt
	;;
    2)
	$ECHO "Please input the xcin main path: "
	read opt
	PATH_XCIN_DIR=$opt
	;;
    3)
	$ECHO "Please input the xcin manual path: "
	read opt
	PATH_XCIN_MAN=$opt
	;;
    h | H)
	more script/config.help
	;;
    s | S)
	save_config_status
	break
	;;
    o | O)
	save_os_def
	;;
    q | Q)
	exit 1
	;;
    esac
done

exit 0