LocalLogger.kt

import android.os.Environment
import android.util.Log
import java.io.BufferedWriter
import java.io.File
import java.io.FileWriter
import java.io.IOException

object LocalLogger {
    // USAGE: LocalLogger.INSTANCE.log(TAG, "------ updateProduct() -----");
    lateinit var logFile: File

    fun getFile() {
        val directory = File(Environment.getExternalStorageDirectory(), "shoppers/logs")
        val directoriesCreated = directory.exists() || directory.mkdirs()

        if (directoriesCreated) {
            logFile = File(directory, "local-logger.txt")

            if (!logFile.exists()) {
                val fileCreated = logFile.createNewFile()
                if (!fileCreated) {
                    throw NoFileException()
                }
            }
        } else {
            throw NoFileException()
        }
    }

    fun log(className: String, text: String) {
        getFile()
        writeToFile("$className : $text")
    }

    private fun writeToFile(data: String) {
        try {
            val fileWriter = BufferedWriter(FileWriter(logFile, true))
            fileWriter.write(data + "\n")
            fileWriter.close()
        } catch (e: IOException) {
            Log.e("Exception", "File write failed: $e")
        }

    }
}


class NoFileException : Exception()