#!/bin/bash
#
# Node tool.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program.  If not, see
# <http://www.gnu.org/licenses/>.

# Get a list of puppet node files
function hydra_node_puppet_files {
  if [ -d "$PUPPET/config/node/" ]; then
    #FILES="$PUPPET/config/node/*"
    FILES="`ls -1 $PUPPET/config/node/ | grep -v example.org | xargs`"
  fi
}

# Return node names from puppet config
function hydra_nodes_puppet_names {
  for file in $FILES; do
    basename $file .yaml
  done
}

# Return nodes from puppet config
function hydra_nodes_puppet {
  # Get initial file list
  hydra_node_puppet_files

  # Get nodes
  if [ ! -z "$CLASS" ]; then
    hydra_nodes_puppet_names | while read node; do
      find $PUPPET/config -name "$node.yaml"
    done | while read candidate; do
      if grep -e "$CLASS" $candidate | grep -qe "^nodo::role"; then
        basename $candidate .yaml
      fi
    done
  else
    hydra_nodes_puppet_names
  fi
}

# Return nodes from ansible config
function hydra_nodes_ansible {
  if [ -z "$CLASS" ]; then
    CLASS="all"
  fi

  hydra $HYDRA ansible $CLASS --list-hosts 2> /dev/null | grep -v "^  hosts (" | sed -e 's/^    //'
}

# Load
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load

# Command line arguments
CLASS="$1"

# Dispatch
if ! [ -z "$PUPPET" ] && [ "$BACKEND" != "ansible" ]; then
  hydra_nodes_puppet
elif [ -d "$HYDRA_FOLDER/ansible" ]; then
  hydra_nodes_ansible
else
  echo "No PUPPET parameter defined at $HYDRA preferences or ansible config available."
  exit 1
fi