package safeluck.drive.evaluation.DB;

import android.content.Context;
import android.util.Log;

import androidx.annotation.NonNull;
import androidx.work.WorkRequest;
import androidx.work.Worker;
import androidx.work.WorkerParameters;
import androidx.work.impl.model.WorkSpec;

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.google.gson.stream.JsonReader;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Set;
import java.util.UUID;

/**
 * MyApplication2
 * Created by lzw on 2019/11/25. 13:11:57
 * 邮箱：632393724@qq.com
 * All Rights Saved! Chongqing AnYun Tech co. LTD
 */
public class SeedDatabaseWorker extends Worker {

    private static final String TAG = "SeedDatabaseWorker";

    public SeedDatabaseWorker(@NonNull Context context, @NonNull WorkerParameters workerParams) {
        super(context, workerParams);
    }

    @NonNull
    @Override
    public Result doWork() {
        Log.i(TAG, "doWork: "+Thread.currentThread().getId());
        try {
            InputStream inputStream = getApplicationContext().getAssets().open("students_file.json");
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
            JsonReader jsonReader = new JsonReader(inputStreamReader);

            Gson gson = new Gson();
            Type type = new TypeToken<List<Student>>(){}.getType();

           List<Student> mstus=gson.fromJson(jsonReader,   type);
           WorkRoomDataBase.getWorkRoomDataBase(getApplicationContext()).getstudentDao().insertAll(mstus);
        } catch (IOException e) {
            e.printStackTrace();
            return Result.failure();
        }
        return Result.success();
    }
}