// Copyright (C) 2019 GerritForge Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.gerritforge.analytics.support.ops
import java.time.{Instant, LocalDateTime, ZoneId}

object IndexNameGenerator {
  def timeBasedIndexName(indexName: String, instant: Instant): String = {
    val now: Long = instant.toEpochMilli
    val dateWithStrFormat: String =
      LocalDateTime
        .ofInstant(Instant.ofEpochMilli(now), ZoneId.systemDefault())
        .format(AnalyticsDateTimeFormatter.yyyy_MM_dd)

    s"${indexName}_${dateWithStrFormat}_$now"
  }
}