#!/bin/bash
 ###########################################################################
# Copyright 2017 IoT.bzh
#
# author: Sebastien Douheret <sebastien@iot.bzh>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
###########################################################################

. $(dirname "$0")/_env-init.sh

usage() {
    echo "Usage: $(basename $0) [-h|--help] [-f|--file <sdk-filename>] [-u|--url <https_url>] [--force] [--no-clean]"
	exit 1
}

TMPDIR=""
SDK_FILE=""
URL=""
do_cleanup=true
do_force=false
while [ $# -ne 0 ]; do
    case $1 in
        -f|--file)
            shift
            SDK_FILE=$1
            ;;
        --force)
            do_force=true
            ;;
        -u|--url)
            shift
            URL=$1
            ;;
        -no-clean)
            do_cleanup=false
            ;;
        -h|--help)
            usage
            ;;
        *)
            echo "Invalid argument: $1"
            usage
            ;;
    esac
    shift
done

[ "$SDK_FILE" = "" ] && [ "$URL" = "" ] && { echo "--file or --url option must be set"; exit 1; }

# Create SDK root dir if needed
[ ! -d ${SDK_ROOT_DIR} ] && mkdir -p ${SDK_ROOT_DIR}
cd ${SDK_ROOT_DIR} || exit 1

# Cleanup
trap "cleanExit" 0 1 2 15
cleanExit ()
{
    if ($do_cleanup); then
        [[ -d ${TMPDIR} ]] && rm -rf ${TMPDIR}
    fi
}

# Download sdk
if [ "$URL" != "" ]; then
    TMPDIR=$(mktemp -d)
    SDK_FILE=${TMPDIR}/$(basename ${URL})
    echo "Downloading $(basename ${SDK_FILE}) ..."
    wget --no-check-certificate "$URL" -O "${SDK_FILE}" || exit 1
fi

# Retreive default install dir to extract version
offset=$(grep -na -m1 "^MARKER:$" "${SDK_FILE}" | cut -d':' -f1)
eval $(head -n $offset "${SDK_FILE}" | grep ^DEFAULT_INSTALL_DIR= )

PROFILE=$(basename $(dirname $DEFAULT_INSTALL_DIR))
VERSION=$(basename $DEFAULT_INSTALL_DIR)
ARCH=$(echo "$SDK_FILE" | sed -r 's/.*crosssdk-(.*)-toolchain.*/\1/')

[ "$PROFILE" = "" ] && { echo "PROFILE is not set"; exit 1; }
[ "$VERSION" = "" ] && { echo "VERSION is not set"; exit 1; }
[ "$ARCH" = "" ] && { echo "ARCH is not set"; exit 1; }

DESTDIR=${SDK_ROOT_DIR}/${PROFILE}/${VERSION}/${ARCH}

[ -d ${DESTDIR} ] && [ "$do_force" != "true" ] && { echo "SDK already installed in $DESTDIR"; exit 1; }

# Cleanup previous install
rm -rf ${DESTDIR} && mkdir -p ${DESTDIR} || exit 1

# Install sdk
chmod +x ${SDK_FILE}
${SDK_FILE} -y -d ${DESTDIR}