/*
 * Import Process Delete
 * Copyright (C) 2020 Memoriav
 *
 * 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 <https://www.gnu.org/licenses/>.
 */

package ch.memobase

import java.text.SimpleDateFormat

import ch.memobase.models.Report
import org.apache.kafka.clients.consumer.ConsumerRecord

import scala.collection.JavaConverters._

trait MsgFilter {

  private val dateFormatter = new SimpleDateFormat("YYYY-MM-dd'T'HH:mm:ss.SSS")

  type FilterFun = ConsumerRecord[String, String] => Boolean

  val sessionIdFilter: String => FilterFun =
    sessionId => rec =>
      rec.headers()
        .headers("sessionId")
        .asScala
        .map(header => new String(header.value()))
        .exists(v => v == sessionId)

  val recordSetIdFilter: String => FilterFun =
    recordSetId => rec =>
      rec.headers()
        .headers("recordSetId")
        .asScala
        .map(header => new String(header.value()))
        .exists(v => v == recordSetId)

  val institutionIdFilter: String => FilterFun =
    institutionId => rec =>
      rec.headers()
        .headers("institutionId")
        .asScala
        .map(header => new String(header.value()))
        .exists(v => v == institutionId)

  val createRecordIdFilter: String => FilterFun =
    recordId => rec =>
      Report(rec.value()).id == recordId

  val createdAfterFilter: String => FilterFun =
    timestamp => rec => {
      val recordTimestamp = Report(rec.value()).timestamp
      recordTimestamp == timestamp ||
        dateFormatter.parse(timestamp).after(dateFormatter.parse(recordTimestamp))
    }

  val createdBeforeFilter: String => FilterFun =
    timestamp => rec => {
      val recordTimestamp = Report(rec.value()).timestamp
      recordTimestamp == timestamp ||
        dateFormatter.parse(timestamp).before(dateFormatter.parse(recordTimestamp))
    }

}