/*
 * sftp-reader
 * 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 org.memobase

import java.io.File
import kotlin.system.exitProcess
import org.apache.logging.log4j.LogManager
import org.memobase.settings.SettingsLoader
import org.memobase.sftp.SftpClient

class App {
    companion object {
        private val log = LogManager.getLogger("SftpReader")
        @JvmStatic fun main(args: Array<String>) {
            try {
                val settings = SettingsLoader(
                    listOf("directory"),
                    useProducerConfig = true,
                    readSftpSettings = true
                )
                Producer(settings.kafkaProducerSettings, settings.outputTopic).use { producer ->
                    SftpClient(settings.sftpSettings).use { sftp ->
                        val validator = FileValidation(sftp)

                        val files = sftp.listFiles(settings.appSettings.getProperty("directory")).map { File(it) }

                        for (file in files) {
                            val validationResult = validator.validate(file)
                            producer.sendMessage(validationResult.second.id, validationResult.first)
                            producer.sendReport(validationResult.second)
                        }
                    }
                }
            } catch (ex: Exception) {
                ex.printStackTrace()
                log.error("Stopping application due to error: " + ex.message)
                exitProcess(1)
            }
        }
    }
}