et

#!/usr/bin/env bash
set -euo pipefail

if [ $# -ge 2 ]; then
  action=$1

  if [ "$action" == "index" ]; then
      command=$2
    if [ "$command" == create ]; then
      index_version=${3:-0}
      base_dir=${4:-index}
      es_url=${5:-http://localhost:9200}


      echo "PUT $es_url/$index_version"
      curl -X PUT -H "Content-Type: application/json" -d "@$base_dir/$index_version/index.json" "$es_url/$index_version/?pretty"

      echo "PUT $es_url/$index_version/_mapping/?pretty"
      curl -X PUT -H "Content-Type: application/json" -d "@$base_dir/$index_version/mapping.json" "$es_url/$index_version/_mapping/movie?pretty"
    fi

    if [ "$command" == "delete" ]; then
      index_version=${3:-0}
      es_url=${4:-http://localhost:9200}

      echo "DELETE $es_url/$index_version"
      curl -X DELETE "$es_url/$index_version/?pretty"
    fi

    if [ "$command" == "alias" ]; then
      alias=$3
      add=$4
      remove=${5-}
      es_url=${6:-http://localhost:9200}

      if [ -z ${remove} ]; then
        payload="
        {
            \"actions\": [
                { \"add\": {
                    \"alias\": \"$alias\",
                    \"index\": \"$add\"
                }}
            ]
        }
    "
      else
        payload="
        {
            \"actions\": [
                { \"add\": {
                    \"alias\": \"$alias\",
                    \"index\": \"$add\"
                }},
                { \"remove\": {
                    \"alias\": \"$alias\",
                    \"index\": \"$remove\"
                }}
            ]
        }
    "
      fi
      echo "$payload"
      curl -X POST -H "Content-Type: application/json" "$es_url/_aliases?pretty" -d"$payload"
    fi
  fi
  if [ "$action" == "reindex" ]; then
      from=$2
      to=$3
      es_url=${4:-http://localhost:9200}

      curl -X POST "$es_url/_reindex?pretty" -H "Content-type: application/json" -d "{
        \"source\": {\"index\": \"$from\"},
        \"dest\": {\"index\": \"$to\"}
    }"
  fi
else
    echo "-- Elasticsearch Tool --"
    echo "et index create name_of_my_index [ index_basedir ] [ elasticsearch url ]"
    echo "et index delete name_of_my_index [ elasticsearch url]"
    echo "et index alias alias_name index_name [ name_of_index_to_remove_alias ] [ elasticsearch url]"
fi