package com.frozenframe;


import android.os.Handler;
import android.os.HandlerThread;

import com.facebook.react.bridge.ReadableMap;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

public class FileLogger {
  private static final String LOG_FOLDER_NAME = "DefrostLog";
  private static final String LOG_REACT_COMMITS = "reactCommits.txt";
  private static final String LOG_USER_EVENTS = "userLogs.txt";

  private Handler handler;
  private static HandlerThread handlerThread;

  public FileLogger() {
    if (handlerThread == null) {
      handlerThread = new HandlerThread("FileLoggerThread");
      handlerThread.start();
    }
    handler = new Handler(handlerThread.getLooper());
  }

  public void writeToLogFile(String timestamp, String message) {
    handler.post(new Runnable() {
      @Override
      public void run() {
        if (!isExternalStorageWritable()) {
          return;
        }
        File logFolder = new File(android.os.Environment.getExternalStorageDirectory(), LOG_FOLDER_NAME);
        if (!logFolder.exists()) {
          if (!logFolder.mkdirs()) {
            return;
          }
        }

        File logFile = new File(logFolder, LOG_USER_EVENTS);
        try {
          FileWriter writer = new FileWriter(logFile, true);
          writer.write(message + "," + timestamp + "\n");
          writer.flush();
          writer.close();
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
    });
  }

  public void writeToLogFile(Long timestamp, ReadableMap tree) {
    handler.post(new Runnable() {
      @Override
      public void run() {
        if (!isExternalStorageWritable()) {
          return;
        }
        File logFolder = new File(android.os.Environment.getExternalStorageDirectory(), LOG_FOLDER_NAME);
        String message = ReadableMapUtils.readableMapToJSONString(tree);
        if (!logFolder.exists()) {
          if (!logFolder.mkdirs()) {
            return;
          }
        }

        File logFile = new File(logFolder, LOG_REACT_COMMITS);
        try {
          FileWriter writer = new FileWriter(logFile, true);
          writer.write(timestamp + " $$$");
          writer.write(message + "\n");
          writer.write("---------------------\n");
          writer.flush();
          writer.close();
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
    });
  }

  private boolean isExternalStorageWritable() {
    String state = android.os.Environment.getExternalStorageState();
    return android.os.Environment.MEDIA_MOUNTED.equals(state);
  }
}