#!/usr/bin/env bash
set -xe

# Specify options for apt
APT_OPTIONS="${APT_OPTIONS:-}"
# Install additional packages using apt
ADDITIONAL_PACKAGES=${ADDITIONAL_PACKAGES:-}
# Call the default type "voyager", for docker it's "dockervoyager"
DEPLOYMENT_TYPE="${DEPLOYMENT_TYPE:-voyager}"
# Can be for example "dockervoyager" or voyager
VOYAGER_CLASS="${VOYAGER_CLASS:-voyager}"

# Assumes we've already been untarred

# First, install any updates from the apt repo that may be needed
# Install the key through a pipe
wget -qO - https://zulip.com/dist/keys/zulip-ppa.asc | apt-key add -
cat >/etc/apt/sources.list.d/zulip.list <<EOF
deb http://ppa.launchpad.net/tabbott/zulip/ubuntu trusty main
deb-src http://ppa.launchpad.net/tabbott/zulip/ubuntu trusty main
EOF

apt-get update
apt-get -y dist-upgrade $APT_OPTIONS
apt-get install -y puppet git python $ADDITIONAL_PACKAGES

mkdir -p /etc/zulip

echo -e "[machine]\npuppet_classes = zulip::$VOYAGER_CLASS\ndeploy_type = voyager" > /etc/zulip/zulip.conf
/root/zulip/scripts/zulip-puppet-apply -f

# These server restarting bits should be moveable into puppet-land, ideally
apt-get -y upgrade
# Don't start services when deploying in docker aka dockervoyager
if [ "$DEPLOYMENT_TYPE" != "dockervoyager" ]; then
    if [ -e "/etc/init.d/nginx" ]; then
        # Check nginx was configured properly now that we've installed it.
        # Most common failure mode is certs not having been installed.
        nginx -t
        service nginx restart
    fi
    /root/zulip/scripts/setup/generate_secrets.py
    if ! rabbitmqctl status >/dev/null; then
        set +x
        echo; echo "RabbitMQ seems to not have started properly after the installation process."
        echo "Often, this can be caused by misconfigured /etc/hosts in virtualized environments"
        echo "See https://github.com/zulip/zulip/issues/53#issuecomment-143805121"
        echo "for more information"
        echo
        set -x
        exit 1
    fi
fi
cp -a /root/zulip/zproject/local_settings_template.py /etc/zulip/settings.py
ln -nsf /etc/zulip/settings.py /root/zulip/zproject/local_settings.py
if [ "$DEPLOYMENT_TYPE" != "dockervoyager" ]; then
    /root/zulip/scripts/setup/configure-rabbitmq

    /root/zulip/scripts/setup/postgres-init-db
else
    echo; echo "Skipping service starts, chosen Deployment Type is \'$DEPLOYMENT_TYPE\'."
fi

deploy_path=$(/root/zulip/zulip_tools.py make_deploy_path)
mv /root/zulip "$deploy_path"
ln -nsf /home/zulip/deployments/next /root/zulip
ln -nsf "$deploy_path" /home/zulip/deployments/next
ln -nsf "$deploy_path" /home/zulip/deployments/current
ln -nsf /etc/zulip/settings.py "$deploy_path"/zproject/local_settings.py
if [ "$DEPLOYMENT_TYPE" == "dockervoyager" ]; then
    # We generate the static files later in the entrypoint.sh we don't have the
    # static files right now, so just create the folder to fix the error with "cp ..."
    mkdir -p "$deploy_path"/prod-static/serve
fi
cp -rT "$deploy_path"/prod-static/serve /home/zulip/prod-static
chown -R zulip:zulip /home/zulip /var/log/zulip /etc/zulip/settings.py
# Allow this to fail, if there is no supervisor running in a docker install
chown -f zulip:zulip /var/run/supervisor.sock || :

cd /home/zulip/deployments/current

set +x
cat <<EOF

 Installation complete!

 Now edit /etc/zulip/settings.py and fill in the mandatory values.

 Once you've done that, please run:

 su zulip -c /home/zulip/deployments/current/scripts/setup/initialize-database

 To configure the initial database.
EOF