#!/bin/bash
set -eu
set -o pipefail

REG_ACTIVATION_KEY="$(os-apply-config --key rh_registration.activation_key --type raw --key-default '')"
REG_AUTO_ATTACH="$(os-apply-config --key rh_registration.auto_attach --type raw --key-default 'true')"
REG_BASE_URL="$(os-apply-config --key rh_registration.base_url --type raw --key-default '')"
REG_ENVIRONMENT="$(os-apply-config --key rh_registration.environment --type raw --key-default '')"
REG_FORCE="$(os-apply-config --key rh_registration.force --type raw --key-default '')"
REG_MACHINE_NAME="$(os-apply-config --key rh_registration.machine_name --type raw --key-default '')"
REG_ORG="$(os-apply-config --key rh_registration.org --type raw --key-default '')"
REG_PASSWORD="$(os-apply-config --key rh_registration.password --type raw --key-default '')"
REG_POOL_ID="$(os-apply-config --key rh_registration.poolid --type raw --key-default '')"
REG_RELEASE="$(os-apply-config --key rh_registration.release --type raw --key-default '')"
REG_REPOS="$(os-apply-config --key rh_registration.repos --type raw --key-default '')"
REG_SAT_URL="$(os-apply-config --key rh_registration.satellite_url --type raw --key-default '')"
REG_SERVER_URL="$(os-apply-config --key rh_registration.server_url --type raw --key-default '')"
REG_SERVICE_LEVEL="$(os-apply-config --key rh_registration.service_level --type raw --key-default '')"
REG_USER="$(os-apply-config --key rh_registration.user --type raw --key-default '')"
REG_TYPE="$(os-apply-config --key rh_registration.type --type raw --key-default '')"
REG_METHOD="$(os-apply-config --key rh_registration.method --type raw --key-default '')"

opts=
attach_opts=
repos="repos --enable rhel-7-server-rpms"
satellite_repo="rhel-7-server-rh-common-beta-rpms"
if [ -n "${REG_AUTO_ATTACH:-}" ]; then
    opts="$opts --auto-attach"

    if [ -n "${REG_SERVICE_LEVEL:-}" ]; then
        opts="$opts --servicelevel $REG_SERVICE_LEVEL"
    fi

    if [ -n "${REG_RELEASE:-}" ]; then
        opts="$opts --release=$REG_RELEASE"
    fi
else
    if [ -n "${REG_SERVICE_LEVEL:-}" ]; then
        echo "WARNING: REG_SERVICE_LEVEL set without REG_AUTO_ATTACH."
    fi

    if [ -n "${REG_RELEASE:-}" ]; then
        echo "WARNING: REG_RELEASE set without REG_AUTO_ATTACH."
    fi

    if [ -n "${REG_POOL_ID:-}" ]; then
        attach_opts="$attach_opts --pool=$REG_POOL_ID"
    fi
fi

if [ -n "${REG_BASE_URL:-}" ]; then
    opts="$opts --baseurl=$REG_BASE_URL"
fi

if [ -n "${REG_ENVIRONMENT:-}" ]; then
    opts="$opts --env=$REG_ENVIRONMENT"
fi

if [ -n "${REG_FORCE:-}" ]; then
    opts="$opts --force"
fi

if [ -n "${REG_SERVER_URL:-}" ]; then
    opts="$opts --serverurl=$REG_SERVER_URL"
fi

if [ -n "${REG_ACTIVATION_KEY:-}" ]; then
    opts="$opts --activationkey=$REG_ACTIVATION_KEY"

    if [ -z "${REG_ORG:-}" ]; then
        echo "WARNING: REG_ACTIVATION_KEY set without REG_ORG."
    fi
else
    if [ -n "${REG_PASSWORD:-}" ]; then
        opts="$opts --password $REG_PASSWORD"
    fi

    if [ -n "${REG_USER:-}" ]; then
        opts="$opts --username $REG_USER"
    fi
fi

if [ -n "${REG_MACHINE_NAME:-}" ]; then
    opts="$opts --name $REG_MACHINE_NAME"
fi

if [ -n "${REG_ORG:-}" ]; then
    opts="$opts --org $REG_ORG"
fi

if [ -n "${REG_REPOS:-}" ]; then
    for repo in $REG_REPOS; do
        repos="$repos --enable $repo"
    done
fi

if [ -n "${REG_TYPE:-}" ]; then
    opts="$opts --type=$REG_TYPE"
fi

case "${REG_METHOD:-}" in
    portal)
        subscription-manager register $opts
        if [ -z "${REG_AUTO_ATTACH:-}" ]; then
            subscription-manager attach $attach_opts
        fi
        subscription-manager $repos
        ;;
    satellite)
        repos="$repos --enable ${satellite_repo}"
        rpm -Uvh "$REG_SAT_URL/pub/katello-ca-consumer-latest.noarch.rpm" || true
        subscription-manager register $opts
        subscription-manager $repos
        yum install -y katello-agent || true # needed for errata reporting to satellite6
        katello-package-upload
        # beta-rpms repo only needed to support the katello-ca rpm above.
        subscription-manager repos --disable ${satellite_repo}
        ;;
    *)
        echo "WARNING: only 'portal' and 'satellite' are valid values for REG_METHOD."
        exit 0 # keeps the stack from failing if you don't set a value in REG_METHOD
esac