package me.bello.brandking;

import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonParser;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;

import me.bello.brandking.data.QuestionData;
import me.bello.brandking.utils.IntentTools;
import me.bello.brandking.utils.PreferenceTools;
import me.bello.brandking.view.MyWebView;

public class MainActivity extends AppCompatActivity implements View.OnClickListener, RadioGroup.OnCheckedChangeListener {
    private Context mContext;

    private RelativeLayout progressBar;
    private TextView _typeText;
    private TextView _numText;
    private TextView _baiduText, _rightText, _wrongText, _preText, _nextText;
    private TextView _questionText;
    private RadioGroup _optionRadioGroup;
    private RadioButton _option1Text;
    private RadioButton _option2Text;
    private RadioButton _option3Text;
    private RadioButton _option4Text;

    public static ArrayList<QuestionData> questionListData = new ArrayList<>();
    private int key;
    private int finish = 0;
    private int rightNum = 0;
    private int wrongNum = 0;
    private String rightIDs = "", wrongIDs = "";

    private MyHandler mHandler = new MyHandler();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mContext = MainActivity.this;

        setContentView(R.layout.activity_main);
        initUI();
        new Thread(new Runnable() {
            @Override
            public void run() {
                getDatas();
            }
        }).start();

    }

    @Override
    protected void onResume() {
        super.onResume();

        finish = PreferenceTools.getInt(mContext, PreferenceTools.FINISH, 0);
        rightNum = PreferenceTools.getInt(mContext, PreferenceTools.RIGHT_NUM, 0);
        wrongNum = PreferenceTools.getInt(mContext, PreferenceTools.WRONG_NUM, 0);
        rightIDs = PreferenceTools.getString(mContext, PreferenceTools.RIGHT_ID, "");
        wrongIDs = PreferenceTools.getString(mContext, PreferenceTools.WRONG_ID, "");

    }

    private void initUI() {
        progressBar = findViewById(R.id.progress_bar);
        _typeText = (TextView) findViewById(R.id.type_text);
        _typeText.setOnClickListener(this);
        _numText = (TextView) findViewById(R.id.num_text);
        _baiduText = findViewById(R.id.baidu_text);
        _baiduText.setOnClickListener(this);
        _rightText = findViewById(R.id.right_text);
        _wrongText = findViewById(R.id.wrong_text);
        _wrongText.setOnClickListener(this);
        _preText = findViewById(R.id.pre_text);
        _preText.setOnClickListener(this);
        _nextText = findViewById(R.id.next_text);
        _nextText.setOnClickListener(this);

        _questionText = (TextView) findViewById(R.id.question_text);

        _optionRadioGroup = (RadioGroup) findViewById(R.id.option_radio_group);
        _optionRadioGroup.setOnCheckedChangeListener(this);

        _option1Text = (RadioButton) findViewById(R.id.option_1_btn);
        _option2Text = (RadioButton) findViewById(R.id.option_2_btn);
        _option3Text = (RadioButton) findViewById(R.id.option_3_btn);
        _option4Text = (RadioButton) findViewById(R.id.option_4_btn);
    }

    private void getDatas() {
        try {

            InputStream raw = getResources().openRawResource(R.raw.quizzes);
            String qStr = inputStream2String(raw);

            JsonArray jsonArray = new JsonParser().parse(qStr).getAsJsonArray();
            for (JsonElement obj : jsonArray) {
                QuestionData cse = new Gson().fromJson(obj, QuestionData.class);
                questionListData.add(cse);
            }

            mHandler.sendEmptyMessage(0);

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 重新加载新题
     */
    private void resetUI() {
        setRadioGroupStatus(_optionRadioGroup, true);
        _option1Text.setBackgroundResource(R.drawable.press_option_bg);
        _option2Text.setBackgroundResource(R.drawable.press_option_bg);
        _option3Text.setBackgroundResource(R.drawable.press_option_bg);
        _option4Text.setBackgroundResource(R.drawable.press_option_bg);

        QuestionData data = questionListData.get(finish);
        _typeText.setText(data.getSchool() + " / " + data.getType());
        _numText.setText((finish + 1) + " / " + questionListData.size());
        _rightText.setText(rightNum + "");
        _wrongText.setText(wrongNum + "");

        _questionText.setText(data.getQuiz());
        _option1Text.setText(data.getOptions()[0]);
        _option2Text.setText(data.getOptions()[1]);
        _option3Text.setText(data.getOptions()[2]);
        _option4Text.setText(data.getOptions()[3]);
        key = data.getAnswer();

    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            //科目筛选
            case R.id.type_text:

                break;

            //百度搜索
            case R.id.baidu_text:
                Bundle bundle = new Bundle();
                bundle.putString("search", "https://www.baidu.com/s?wd=" + questionListData.get(finish).getQuiz());
                IntentTools.setIntent(mContext, MyWebView.class, bundle, false);
                break;

            //错题集
            case R.id.wrong_text:
                IntentTools.setIntent(mContext, ErrorActivity.class, null, false);
                break;

            //上一题
            case R.id.pre_text:
                if (finish == 0)
                    return;

                finish--;
                PreferenceTools.setInt(mContext, PreferenceTools.FINISH, finish);
                resetUI();
                break;

            //下一题
            case R.id.next_text:
                if (finish == questionListData.size() - 1)
                    return;

                finish++;
                PreferenceTools.setInt(mContext, PreferenceTools.FINISH, finish);
                resetUI();
                break;

        }
    }

    @Override
    public void onCheckedChanged(RadioGroup radioGroup, int i) {
        switch (i) {
            case R.id.option_1_btn:
                sendAnswer(1);
                break;

            case R.id.option_2_btn:
                sendAnswer(2);
                break;

            case R.id.option_3_btn:
                sendAnswer(3);
                break;

            case R.id.option_4_btn:
                sendAnswer(4);
                break;
        }
    }

    /**
     * 答题并保存记录
     *
     * @param i
     */
    private void sendAnswer(int i) {
        String questionId = questionListData.get(finish).get_id();

        setRadioGroupStatus(_optionRadioGroup, false);
        if (i == key) {
            showOptionBtnSelect(i, true);
            //如果不存在就开始保存
            if (!rightIDs.contains(questionId)) {
                rightIDs += questionId + ",";
                PreferenceTools.setString(mContext, PreferenceTools.RIGHT_ID, rightIDs);
                rightNum++;
                PreferenceTools.setInt(mContext, PreferenceTools.RIGHT_NUM, rightNum);

                //保存后删除错误里的数据
                if (wrongIDs.contains(questionId)) {
                    wrongIDs = wrongIDs.replace(questionId + ",", "");
                    PreferenceTools.setString(mContext, PreferenceTools.WRONG_ID, wrongIDs);
                    wrongNum--;
                    PreferenceTools.setInt(mContext, PreferenceTools.WRONG_NUM, wrongNum);
                }
            }
        } else {
            showOptionBtnSelect(i, false);
            showOptionBtnSelect(key, true);
            //如果不存在就开始保存
            if (!wrongIDs.contains(questionId)) {
                wrongIDs += questionId + ",";
                PreferenceTools.setString(mContext, PreferenceTools.WRONG_ID, wrongIDs);
                wrongNum++;
                PreferenceTools.setInt(mContext, PreferenceTools.WRONG_NUM, wrongNum);
                //保存后删除正确里的数据
                if (rightIDs.contains(questionId)) {
                    rightIDs = rightIDs.replace(questionId + ",", "");
                    PreferenceTools.setString(mContext, PreferenceTools.RIGHT_ID, rightIDs);
                    rightNum--;
                    PreferenceTools.setInt(mContext, PreferenceTools.RIGHT_NUM, rightNum);
                }
            }
        }

        if (finish != questionListData.size() - 1) {
            finish++;
            PreferenceTools.setInt(mContext, PreferenceTools.FINISH, finish);

            mHandler.sendEmptyMessageDelayed(0, 1000);
        } else {
            Toast.makeText(mContext, "最后一题", Toast.LENGTH_SHORT).show();
        }
    }

    private void showOptionBtnSelect(int i, boolean isRight) {
        switch (i) {
            case 1:
                if (isRight) {
                    _option1Text.setBackgroundResource(R.drawable.shape_option_green);
                } else {
                    _option1Text.setBackgroundResource(R.drawable.shape_option_red);
                }
                break;

            case 2:
                if (isRight) {
                    _option2Text.setBackgroundResource(R.drawable.shape_option_green);
                } else {
                    _option2Text.setBackgroundResource(R.drawable.shape_option_red);
                }
                break;

            case 3:
                if (isRight) {
                    _option3Text.setBackgroundResource(R.drawable.shape_option_green);
                } else {
                    _option3Text.setBackgroundResource(R.drawable.shape_option_red);
                }
                break;

            case 4:
                if (isRight) {
                    _option4Text.setBackgroundResource(R.drawable.shape_option_green);
                } else {
                    _option4Text.setBackgroundResource(R.drawable.shape_option_red);
                }
                break;
        }


    }


    public void setRadioGroupStatus(RadioGroup testRadioGroup, boolean isChecked) {
        for (int i = 0; i < testRadioGroup.getChildCount(); i++) {
            testRadioGroup.getChildAt(i).setEnabled(isChecked);
            testRadioGroup.getChildAt(i).setClickable(isChecked);
        }
        testRadioGroup.clearCheck();
    }


    public static String inputStream2String(InputStream is) throws IOException {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        int i = -1;
        while ((i = is.read()) != -1) {
            baos.write(i);
        }
        return baos.toString();
    }

    class MyHandler extends Handler {
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            progressBar.setVisibility(View.GONE);
            resetUI();
        }
    }
}