#!/bin/bash -xe
#   Copyright  2016-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
#   Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the License. A copy of the License is located at
#
#   http://aws.amazon.com/apache2.0/
#
#   or in the "license" file accompanying this file. This file 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.

BUILDER_DIR="/tmp/builder/"

. $BUILDER_DIR/CONFIG

function wait_for_cloudinit() {
    echo "Waiting for cloud init to finish bootstrapping.."
    until [ -f /var/lib/cloud/instance/boot-finished ]; do
        echo "Still bootstrapping.. sleeping. "
        sleep 3;
    done
}

function run_command {
    echo "Running script [$1]"
    chmod +x $1
    (cd $BUILDER_DIR/setup-scripts; BUILDER_DIR=$BUILDER_DIR $1 )
    if [ $? -ne "0" ]; then
        echo "Exiting. Failed to execute [$1]"
        exit 1
    fi
}

function install_jq() {
    ##### INSTALL JQ TO HELP IN OUR HOOKS LATER ON #####
    echo "Installing jq"
    cd /tmp
    wget https://github.com/stedolan/jq/releases/download/jq-1.5/jq-linux64
    chmod +x jq-linux64
    mv jq-linux64 jq
    mv jq /usr/local/bin/
}

function setup_beanstalk_base() {
    echo "Creating base directories for platform."
    mkdir -p $BEANSTALK_DIR/deploy/appsource/
    mkdir -p /var/app/staging
    mkdir -p /var/app/current
    mkdir -p /var/log/nginx/healthd/
    mkdir -p /var/log/tomcat/
    yum install unzip
}

function sync_platform_uploads() {
    ##### COPY THE everything in platform-uploads to / ####
    echo "Setting up platform hooks"
    rsync -ar $BUILDER_DIR/platform-uploads/ /
}

function prepare_platform_base() {
    install_jq
    setup_beanstalk_base
    sync_platform_uploads
}

function run_setup_scripts() {
    for entry in $( ls $BUILDER_DIR/setup-scripts/*.sh | sort ) ; do
        run_command $entry
    done
}

function cleanup() {
    echo "Done all customization of packer instance. Cleaning up"
    rm -rf $BUILDER_DIR
}

function set_permissions() {
    echo "Setting permissions in /opt/elasticbeanstalk"
    find /opt/elasticbeanstalk -type d -exec chmod 755 {} \; -print
    chown -R root:root /opt/elasticbeanstalk/
    echo "Setting permissions for shell scripts"
    find /opt/elasticbeanstalk/ -name "*.sh" -exec chmod 755 {} \; -print
    echo "setting permissions done."
}

echo "Running packer builder script"

wait_for_cloudinit
prepare_platform_base
run_setup_scripts
set_permissions
cleanup