import

#!/bin/sh -e
#
# Script to import code from the Atmel LWM zipfiles
#
# Copyright (C) 2014, Matthijs Kooijman <matthijs@stdin.nl>
#
# This file is licensed under the 2-clause BSD license:
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
# WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

usage() {
	echo <<EOF
Usage: $0 SRCECTORY

	Imports source files from the given directory, which should be
	the top level directory from the zipfile provided by Atmel.
EOF
}

if [ "$#" != 1 ]; then
	echo Need exactly one argument
	usage
	exit 1
fi

SRC=$1
TARGET=$(cd $(dirname $0); pwd)
if ! [ -d "$SRC" ]; then
	echo Not a directory: $SRC
	usage
	exit 1
fi

for d in nwk phy hal sys; do
	if ! [ -d "$SRC/$d" ]; then
		echo $SRC does not look like a valid Atmel LWM directory, $SRC/$d missing
		exit 1
	fi
done

copy() {
	FROM="$1"
	TO="$2"


	if [ -d "$TO" ]; then
		# Remove any old files
		rm -f "$TO"/*
	else
		mkdir -p "$TO"
	fi

	cp "$FROM/src"/* "$TO"
	cp "$FROM/inc"/* "$TO"

	dos2unix --quiet "$TO"/*.h "$TO"/*.c
	sed -i -r 's%^#include ["<](phy|sys|nwk|hal)(.*)[">]$%#include "../\1/\1\2"%' "$TO"/*.h "$TO"/*.c
	# Add extern "C" to header files to allow including them from C++
	sed -i -r '1i #ifdef __cplusplus\nextern "C" {\n#endif' "$TO"/*.h
	sed -i -r '$a #ifdef __cplusplus\n}\n#endif' "$TO"/*.h
}

copy "$SRC/sys" "$TARGET/src/lwm/sys"
copy "$SRC/nwk" "$TARGET/src/lwm/nwk"

# For now, import just the atmegarfr2 code. We don't really need the
# others and util the Arduino IDE allows to configure libraries from a
# sketch, selecting the actual code to use isn't very easy anyway.
copy "$SRC/phy/atmegarfr2" "$TARGET/src/lwm/phy"

# We skip the hal directory, since the functions defined there should be
# manually defined to work on the Arduino platform. Note that the files
# in hal/drivers are only used by the examples in apps, not by the rest
# of the library.

# Edit sysConfig.h to include a config.h from the root of this library.
# This should allow editing the config.h, without the risk of a sketch
# accidentally including it or this script overwriting it.
sed -i -r 's%^#include "config.h"%#include "../../../config.h"%' "$TARGET/src/lwm/sys/sysConfig.h"

# sysTypes.h and phy.c assume that one of the HAL_ and PHY_ constants
# are defined on the compiler commandline. Since the Arduino IDE doesn't
# offer anything for this currently, just insert an include of config.h
# to the top of these files. This really isn't very pretty, though.
sed -i -r '1i #include "../../../config.h"' "$TARGET/src/lwm/sys/sysTypes.h"
sed -i -r '1i #include "../../../config.h"' "$TARGET/src/lwm/phy/phy.c"

cp "$SRC/license.txt" "$TARGET"
# license.txt contains curly quotes in a window-specific encoding, just
# convert to utf8.
iconv -f cp1252 -t utf8 "$TARGET/license.txt" --output "$TARGET/license.txt"
dos2unix --quiet "$TARGET/license.txt"