#!/bin/bash
#
# functions - puppet-openstack-integration specific functions
#

# Install external Puppet modules with r10k
# Uses the following variables:
#
# - ``SCRIPT_DIR`` must be set to script path
# - ``GEM_BIN_DIR`` must be set to Gem bin directory
install_external() {
  PUPPETFILE=${SCRIPT_DIR}/Puppetfile1 r10k -v DEBUG puppetfile install
}

# Install Puppet OpenStack modules with zuul-cloner
# Uses the following variables:
#
# - ``PUPPETFILE_DIR`` must be set to Puppet modules directory
# - ``SCRIPT_DIR`` must be set to script path
# - ``ZUUL_BRANCH`` must be set to Zuul branch. Fallback to 'master'.
# - ``CEPH_VERSION`` can be set to override Ceph version.
install_openstack() {
  # Periodic jobs run without ref on master
  ZUUL_BRANCH=${ZUUL_BRANCH:-master}

  if [ "$ZUUL_PROJECT" != "openstack/puppet-ceph" ] && [ -n "$CEPH_VERSION" ]; then
    if [ "$CEPH_VERSION" == "mimic" ]; then
      ZUUL_BRANCH="master"
    else
      ZUUL_BRANCH="stable/$CEPH_VERSION"
    fi
  fi

  cat > clonemap.yaml <<EOF
clonemap:
  - name: '(.*?)/puppet-(.*)'
    dest: '$PUPPETFILE_DIR/\2'
EOF

  local project_names=$(awk '{ if ($1 == ":git") print $3 }' \
    ${SCRIPT_DIR}/Puppetfile0 | tr -d "'," | cut -d '/' -f 4- | xargs
  )
  project_names="${project_names} openstack/puppet-openstack-integration"
  /usr/zuul-env/bin/zuul-cloner -m clonemap.yaml \
    --cache-dir /opt/git \
    --zuul-branch $ZUUL_BRANCH \
    git://git.openstack.org $project_names

  # Because openstack-integration can't be a class name.
  # https://projects.puppetlabs.com/issues/5268
  mv $PUPPETFILE_DIR/openstack-integration $PUPPETFILE_DIR/openstack_integration
}

# Install all Puppet modules with r10k
# Uses the following variables:
#
# - ``SCRIPT_DIR`` must be set to script path
install_all() {
  # When installing from local source, we want to install the current source
  # we're working from.
  PUPPETFILE=${SCRIPT_DIR}/Puppetfile r10k -v DEBUG puppetfile install
  cp -a ${SCRIPT_DIR} ${PUPPETFILE_DIR}/openstack_integration
}

# Install Puppet OpenStack modules and dependencies by using
# zuul-cloner or r10k.
# Uses the following variables:
#
# - ``PUPPETFILE_DIR`` must be set to Puppet modules directory
# - ``SCRIPT_DIR`` must be set to script path
# - ``ZUUL_BRANCH`` must be set to Zuul branch
install_modules() {
  # If zuul-cloner is there, have it install modules using zuul refs
  if [ -e /usr/zuul-env/bin/zuul-cloner ] ; then
    csplit ${SCRIPT_DIR}/Puppetfile /'External modules'/ \
      --prefix ${SCRIPT_DIR}/Puppetfile \
      --suffix '%d'
    install_external
    install_openstack
  else
    install_all
  fi
}

# This is only executed from install_modules_unit.sh because we have
# some modules that is only required for puppet6 unit testing.
# Uses the following variables:
#
# - ``PUPPETFILE_DIR`` must be set to Puppet modules directory
# - ``SCRIPT_DIR`` must be set to script path
# - ``ZUUL_BRANCH`` must be set to Zuul branch
install_modules_unit() {
  # If zuul-cloner is there, have it install modules using zuul refs
  if [ -e /usr/zuul-env/bin/zuul-cloner ] ; then
    csplit ${SCRIPT_DIR}/Puppetfile /'External modules'/ \
      --prefix ${SCRIPT_DIR}/Puppetfile \
      --suffix '%d'
    cat ${SCRIPT_DIR}/Puppetfile_unit >> ${SCRIPT_DIR}/Puppetfile1
    install_external
    install_openstack
  else
    cat ${SCRIPT_DIR}/Puppetfile_unit >> ${SCRIPT_DIR}/Puppetfile
    install_all
  fi
}

# Write out basic hiera configuration
#
# Uses the following variables:
# - ``SCRIPT_DIR`` must be set to the dir that contains a /hiera folder to use
# - ``HIERA_CONFIG`` must be set to the hiera config file location
#
configure_hiera() {
  cat <<EOF >$HIERA_CONFIG
---
:backends:
  - yaml
:yaml:
  :datadir: "${SCRIPT_DIR}/hiera"
:hierarchy:
  - "%{::operatingsystem}"
  - "%{::osfamily}"
  - common
EOF
}

is_fedora() {
    if [ -f /etc/os-release ]; then
        source /etc/os-release
        test "$ID" = "fedora" -o "$ID" = "centos"
    else
        return 1
    fi
}

uses_debs() {
    # check if apt-get is installed, valid for debian based
    type "apt-get" 2>/dev/null
}

if type "dnf" 2>/dev/null;then
    export YUM=dnf
else
    export YUM=yum
fi

print_header() {
    if [ -n "$(set | grep xtrace)" ]; then
      set +x
      local enable_xtrace='yes'
    fi
    local msg=$1
    printf '%.0s-' {1..80}; echo
    printf '| %-76s |\n' "${msg}"
    printf '%.0s-' {1..80}; echo
    if [ -n "${enable_xtrace}" ]; then
      set -x
    fi
}

install_puppet() {
    if uses_debs; then
        print_header 'Setup (Debian based)'
        if [ "${MANAGE_REPOS}" == "true" ] ; then
            if [ $PUPPET_MAJ_VERSION == 4 ]; then
                local PUPPET_APT_POOL="PC1"
            else
                local PUPPET_APT_POOL="puppet${PUPPET_MAJ_VERSION}"
            fi
            PUPPET_CODENAME=$(lsb_release -s -c)
            if [ $PUPPET_CODENAME == "bionic" ]; then
                # For some reason this directory does not exist in Bionic
                $SUDO mkdir -p /etc/apt/sources.list.d
            fi
            echo "deb ${NODEPOOL_PUPPETLABS_MIRROR} ${PUPPET_CODENAME} ${PUPPET_APT_POOL}" | $SUDO tee /etc/apt/sources.list.d/puppetlabs.list
            $SUDO apt-key add files/GPG-KEY-puppetlabs
            $SUDO apt-key add files/GPG-KEY-ceph
            $SUDO apt-get update
        fi
        $SUDO apt-get install -y ${PUPPET_PKG}
    elif is_fedora; then
        print_header 'Setup (RedHat based)'
        # EPEL does not work fine with RDO, we need to make sure EPEL is really disabled
        if rpm --quiet -q epel-release; then
            $SUDO rpm -e epel-release
        fi

        if [ "${MANAGE_REPOS}" == "true" ] ; then
            if [ $PUPPET_MAJ_VERSION == 4 ]; then
                local PUPPET_YUM_SUFFIX="/el/7/PC1/x86_64/"
            else
                local PUPPET_YUM_SUFFIX="/puppet${PUPPET_MAJ_VERSION}/el/7/x86_64/"
            fi
            $SUDO rpm --import files/GPG-KEY-puppetlabs
            $SUDO rpm --import files/GPG-KEY-puppet
            $SUDO bash -c "cat << EOF > /etc/yum.repos.d/puppetlabs.repo
[puppetlabs-products]
name=Puppet Labs Products El 7 - x86_64
baseurl=${NODEPOOL_PUPPETLABS_MIRROR}${PUPPET_YUM_SUFFIX}
gpgkey=file:///etc/pki/rpm-gpg/GPG-KEY-puppetlabs
       file:///etc/pki/rpm-gpg/GPG-KEY-puppet
enabled=1
gpgcheck=1
EOF"
        fi
        $SUDO $YUM install -y ${PUPPET_PKG}
    fi
}

function run_puppet() {
    local manifest=$1
    $SUDO $PUPPET_FULL_PATH apply $PUPPET_ARGS fixtures/${manifest}.pp
    local res=$?
    return $res
}

function catch_selinux_alerts() {
    if is_fedora; then
        $SUDO sealert -a /var/log/audit/audit.log
        if $SUDO grep -iq 'type=AVC' /var/log/audit/audit.log; then
            echo "AVC detected in /var/log/audit/audit.log"
            # TODO: figure why latest rabbitmq deployed with SSL tries to write in SSL pem file.
            # https://bugzilla.redhat.com/show_bug.cgi?id=1341738
            if $SUDO grep -iqE 'denied.*system_r:rabbitmq_t' /var/log/audit/audit.log; then
                echo "non-critical RabbitMQ AVC, ignoring it now."
            # FIXME(ykarel) catch_selinux_alerts not work with non ssl scenarios(no rabbitmq alert),
            # currently running scenario-py3 without ssl because glance py3 has issues when
            # running with eventlet + ssl: https://bugs.launchpad.net/glance/+bug/1769006
            elif [[ "$SCENARIO" = "scenario-py3" ]]; then
                echo "non ssl scenario-py3, ignoring it now."
            else
                echo "Please file a bug on https://bugzilla.redhat.com/enter_bug.cgi?product=Red%20Hat%20OpenStack&component=openstack-selinux showing sealert output."
                exit 1
            fi
        else
            echo 'No AVC detected in /var/log/audit/audit.log'
        fi
    fi
}

function timestamp_puppet_log() {
    $SUDO mv ${WORKSPACE}/puppet.log ${WORKSPACE}/puppet-$(date +%Y%m%d_%H%M%S).log
}

function catch_puppet_failures() {
    $SUDO grep -wiE '(Error|\(err\))' ${WORKSPACE}/puppet.log
}