#!/bin/sh

#
#	em
#	Script to edit MH mail messages
#	Copyright (C) 1999 Frederick Barnes
#
#	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., 675 Mass Ave, Cambridge, MA 02139, USA.
#


if [ -f $HOME/.mh_profile ]
then
	unset MAILPATH
	MAILPATH=`cat $HOME/.mh_profile | grep '^[pP]ath:' | awk '{print($2)}'`
	if [ "$MAILPATH" = "" ]
	then
		echo "no Path entry in $HOME/.mh_profile"
		exit 1
	fi
else
	echo "No .mh_profile file"
	exit 1
fi

if [ -f $HOME/$MAILPATH/context ]
then
	CUR_FOLDER=`cat $HOME/$MAILPATH/context | grep '^Current-Folder' | awk '{print($2)}'`
else
	echo "No MH context in $HOME/$MAILPATH/context"
	exit 1
fi

unset CUR_MESG
while [ "$#" != "0" ]
do
	echo $1 | grep '^\+' > /dev/null
	if [ "$?" = "0" ]
	then
		CUR_FOLDER=`echo $1 | awk -F+ '{print($2)}'`
		shift
		continue
	fi
	echo $1 | grep '^-' > /dev/null
	if [ "$?" = "0" ]
	then
		echo "Options not supported yet..  go away"
		shift
		continue
	fi
	CUR_MESG=$1
	shift
done

if [ "$CUR_FOLDER" = "" ]
then
	echo "No folder specified"
	exit 1
fi
if [ ! -d $HOME/$MAILPATH/$CUR_FOLDER ]
then
	echo "$CUR_FOLDER is not an MH folder"
	exit 1
fi

if [ "$CUR_MESG" = "" ]
then
	# We can have a go at extracting from the .mh_sequences file
	CUR_MESG=`cat $HOME/$MAILPATH/$CUR_FOLDER/.mh_sequences | grep '^cur' | awk '{print($2)}'`
fi

if [ "$CUR_MESG" = "" ]
then
	# Might be a funny one stored in $MAILPATH
	CUR_MESG=`cat $HOME/$MAILPATH/context | grep '^atr-cur-.*/'$MAILPATH'/'$CUR_FOLDER':' | awk '{print($2)}'`
	if [ "$CUR_MESG" = "" ]
	then
		echo "No current message"
		exit 1
	fi
fi

/bin/sh -c "$EDITOR $HOME/$MAILPATH/$CUR_FOLDER/$CUR_MESG"