#! /bin/sh
#############################################################################
#
# $Id$
#
# MODULE:   	GRASS Initialization
# AUTHOR(S):	Justin Hickey - Thailand - jhickey@hpcc.nectec.or.th
#               William Kyngesburye - kyngchaos@kyngchaos.com
# PURPOSE:  	The source file for this shell script is in
#   	    	macosx/app/grass.sh.in and is the grass startup script for
#               the Mac OS X application build.
# COPYRIGHT:    (C) 2000-2005 by the GRASS Development Team
#
#               This program is free software under the GNU General Public
#   	    	License (>=v2). Read the file COPYING that comes with GRASS
#   	    	for details.
#
#############################################################################

# Mac app only startup shell - complete rewrite for starting from a GRASS.app
# in Mac OS X.  Sets defaults for unset env, adds some Mac-only config.

trap "echo 'User break!' ; exit" 2 3 9 15

# dummy for now - just saying we're starting GRASS.app on OSX
GRASS_OS_STARTUP="Mac.app"
export GRASS_OS_STARTUP

GISBASE=`dirname "$0"`
export GISBASE
grass_ver=`cut -d . -f 1-2 "$GISBASE/etc/VERSIONNUMBER"`

GISBASE_USER="$HOME/Library/GRASS/$grass_ver"
GISBASE_SYSTEM="/Library/GRASS/$grass_ver"

# for extra utils
# hack - ideally user should have these in their PATH, but make sure here
PATH="@GDAL_BIN_PATH@:@PROJ_BIN_PATH@:$PATH"
export PATH

# add some OS X style app support paths, and create user one if missing.
mkdir -p "$GISBASE_USER/Modules/bin"
if [ "$GRASS_ADDON_PATH" ] ; then
	GRASS_ADDON_PATH="$GRASS_ADDON_PATH:$GISBASE_USER/Modules/bin:$GISBASE_SYSTEM/Modules/bin"
else
	GRASS_ADDON_PATH="$GISBASE_USER/Modules/bin:$GISBASE_SYSTEM/Modules/bin"
fi
export GRASS_ADDON_PATH

mkdir -p "$GISBASE_USER/Modules/etc"
if [ "$GRASS_ADDON_ETC" ] ; then
	GRASS_ADDON_ETC="$GRASS_ADDON_ETC:$GISBASE_USER/Modules/etc:$GISBASE_SYSTEM/Modules/etc"
else
	GRASS_ADDON_ETC="$GISBASE_USER/Modules/etc:$GISBASE_SYSTEM/Modules/etc"
fi
export GRASS_ADDON_ETC

mkdir -p "$GISBASE_USER/Modules/lib"
if [ "$DYLD_LIBRARY_PATH" ] ; then
	DYLD_LIBRARY_PATH="$GISBASE_USER/Modules/lib:$GISBASE_SYSTEM/Modules/lib:$DYLD_LIBRARY_PATH"
else
	DYLD_LIBRARY_PATH="$GISBASE_USER/Modules/lib:$GISBASE_SYSTEM/Modules/lib"
fi
export DYLD_LIBRARY_PATH

mkdir -p "$GISBASE_USER/Modules/docs/html"

# rebuild addon html index and gui menus
"$GISBASE/etc/build_html_user_index.sh" "$GISBASE"
"$GISBASE/etc/build_gui_user_menu.sh"

# user fontcap files
if [ ! "$GRASS_FONT_CAP" ] ; then
	GRASS_FONT_CAP="$GISBASE_USER/Modules/etc/fontcap"
fi
export GRASS_FONT_CAP

# default xterm Terminal emulator
# note: only app startup defaults this way, CLI build still defaults to xterm
if [ ! "$GRASS_XTERM" ] ; then
	GRASS_XTERM="$GISBASE/etc/grass-xterm-mac"
	export GRASS_XTERM
fi

# determine current term application (when grass.sh is run directly by the user)
# use osascript so we can get name of term app, not shell process
USERTERM=`osascript -e 'tell application "System Events" to item 1 of (get name of processes whose frontmost is true)'`
if [ ! "$USERTERM" ] ; then
	USERTERM="Terminal"
fi

### X11 stuff

# start X11 if not running
# some users may be annoyed by this, but X11 required for some stuff for now
if [ -d "/Applications/Utilities/X11.app" ] ; then
	# no need to start Leopard X11.app
	if [ ! -d "/usr/X11" ] ; then
		# check if running anyways, even though not necessary with "open"
		if [ ! "`ps -axc | grep 'X11$'`" ] ; then
			open /Applications/Utilities/X11.app
		fi
	fi
fi

# make sure X11 is in PATH
pathX11=`echo "$PATH" | grep '/usr/X11\(R6\)\?/bin'`
if [ ! "$pathX11" ] ; then
	if [ -d "/usr/X11" ] ; then
		PATH="$PATH:/usr/X11/bin"
		export PATH
	elif [ -d "/usr/X11R6" ] ; then
		PATH="$PATH:/usr/X11R6/bin"
		export PATH
	fi
fi

# default to internal X11 Tcl/Tk
@TCLTK_INTERNAL@if [ ! "$GRASS_TCLSH" ] ; then
	GRASS_TCLSH="$GISBASE/bin/tclsh@TCLTKVER@"
	export GRASS_TCLSH
	GRASS_WISH="$GISBASE/bin/wish@TCLTKVER@"
	export GRASS_WISH
	# internal - force osxaqua off
	unset osxaqua
	# override TCL_LIBRARY to internal
	TCL_LIBRARY="$GISBASE/lib/tcl@TCLTKVER@"
	export TCL_LIBRARY
	TK_LIBRARY="$GISBASE/lib/tk@TCLTKVER@"
	export TK_LIBRARY
@TCLTK_INTERNAL@fi

# make sure there is a DISPLAY set
if [ ! "$DISPLAY" ] ; then
	DISPLAY=:0.0
	export DISPLAY
fi

### end X11 block

# if gisrc has text startup, switch back to Terminal (gotta duplicate some init.sh stuff)
# eventually, when TclTk optional, can run appropriate apps per GUI here (ie X11)
GISRCRC="$HOME/.grassrc6"
if [ ! "$GRASS_GUI" ] ; then
	if [ -f "$GISRCRC" ] ; then
		GRASS_GUI=`awk '/GRASS_GUI/ {print $2}' "$GISRCRC"`
	fi
	if [ ! "$GRASS_GUI" ] ; then
		GRASS_GUI="tcltk"
	fi
fi
if [ "$GRASS_GUI" = "text" ] ; then
	osascript -e "tell application \"$USERTERM\" to activate"
fi

exec "$GISBASE/etc/Init.sh" "$@"