#!/bin/bash
# int-fiction.sh 1.0
# (c)2004 Lee Bigelow <[email protected]>
#
# A bash script to display a menu of available int-fiction games
# from a directory and pick the right interpreter to play them. Or
# just play play a game passed on the command line with the right interpreter.
# It uses whiptail or dialog to make the menu.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
# or view it online at: http://www.gnu.org/copyleft/gpl.html

IFIC_DIR="$HOME/int-fiction/"
IFSAVE_DIR="$IFIC_DIR/ifsaved/"

#####################
# This is where the graphic players would go
if [ $DISPLAY ]; then
   PLAYERS="
           zoom:[Zz][1-9]
           xnitfol:[Zz][1-9]
           glulxex:[Uu][Ll][Xx],[Bb][Ll][Bb]
           xtads:[Gg][Aa][Mm]
           hewx:[Hh][Ee][Xx]
           gtkscare:[Tt][Aa][Ff]
           "
fi

#####################
# This is where the console players go
PLAYERS=$PLAYERS"
        frotz:[Zz][0-9]
        nitfol:[Zz][1-9]
        t3run:[Tt]3
        t23run:[Tt]3,[Gg][Aa][Mm]
        glulxeterm:[Uu][Ll][Xx],[Bb][Ll][Bb]
        he:[hH][eE][xX]
        glkarun:[Aa][Cc][Dd]
        "

##################
#Check for passed gamefile or help
if [ "$#" -gt "1" ] || [ x"$@" = x"-h" ]; then
   echo "usage: $0 [gamefile]"
   echo
   echo "If passed a gamefile, it will play it with the apropriate player."
   echo "If nothing is passed it will attempt to make a menu of games"
   echo "available using whiptail."
   exit
fi
##################
# set game var to first argument passed, if relative make absolute path
if [ -f "$PWD/$1" ]; then
   game="$PWD/$1"
else
   game="$1"
fi

#####################
# check the directory where game files are located, if no gamefile passed.
if [ ! "$game" ] && [ ! -d "$IFIC_DIR" ]; then
   echo Could not find directory:
   echo $IFIC_DIR
   echo
   echo Please set up such a directory for your int-fiction story files, or
   echo edit and change the default directory this script:
   echo "$0".
   echo
   read -p "Press Enter to Exit..."
   exit
fi

#####################
# Set up and change into a save directory
[ ! -d "$IFSAVE_DIR" ] && mkdir "$IFSAVE_DIR"
if [ -d "$IFSAVE_DIR" ]; then
   cd $IFSAVE_DIR
else
   echo Error could not create IF save directory:
   echo $IFSAVE_DIR
   echo
   echo Please edit this file: $0
   echo to change the defaults
   echo
   read -p "Press Enter to Exit..."
   exit
fi

####################
# function to playgame with appropriate interp
playgame ()
{
   game="$1"
   echo game $game
   gameext="${game##*.}"
   interp=""
   for player in $PLAYERS
   do
       exts="${player##*:}"
       exts="${exts//,/ }"
       for ext in $exts
       do
           if [[ "$gameext" == $ext ]]; then
               interp="$(which ${player%%:*})"
               possible=$possible"${player%%:*} "
           fi
       done
       [ "$interp" ] && break
   done
   if [ "$interp" ]; then
       $interp "$game"
   else
       whiptail --clear --title "Error" --msgbox \
"Player for file $game not found....
===================================

For the game type \"$gameext\"
Install one of the following players:

$possible

Or edit this file \"$0\"
to include a player not listed" 0 0
   fi
}


##################
# if game passed to script play it
if [ "$game" ]; then
   playgame $game
   exit
fi

#####################
# make a list files based on interpreters.
EXTS="" # regex container for all file extensions
for player in $PLAYERS; do
   exts="${player##*:}"
   exts="${exts//,/\|}"
   EXTS=$EXTS"\|"$exts
done

files=$(find $IFIC_DIR -regex ".*\.\($EXTS\)")
if [ -z "$files" ]; then
   echo Could not find any int-fiction files in $IFIC_DIR
   read -p "Press Enter to Exit..."
   exit
fi

#####################################
#make file name list for whiptail menu and full path lookup
tag=$(echo $'\b') #needed for empty whiptail tag entry
for file in $files;
do
   gpaths=$gpaths"$file:$(basename $file) "
   gmenu=$gmenu"$(basename $file) $tag\n"
done
gmenu=$(echo -e $gmenu|sort -f)

#######################
# and now the menu loop
if which whiptail; then
   MENUPRG="whiptail"
elif which dialog; then
   MENUPRG="dialog"
else
   echo Error no menuing program found.
   echo I require the program whiptail or dialog
   echo in order to make the menu.
   echo
   echo Press Enter to exit...
   read x
   exit
fi

tempfile=$(tempfile 2>/dev/null) || tempfile=/tmp/ific$$

while true
do

   $MENUPRG --clear \
            --title "Interactive Fiction Game Selector" \
            --menu "For more games and reviews see
Baf's Guide to Interactive Fiction:
http://www.wurb.com/if/index

Select a Game to Play:" 0 0 0\
            $gmenu 2> $tempfile

   game=$(cat $tempfile)
   rm -f $tempfile

   for gpath in $gpaths; do
       if [ "${gpath##*:}" = "$game" ]; then
           game="${gpath%%:*}"
           break
       fi
   done
   if [ "$game" ]; then
       playgame "$game"
   else exit
   fi
done

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