package com.appetize.remotesms;

import android.content.pm.PackageManager;
import android.graphics.drawable.Animatable;
import android.os.Bundle;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

import com.pengrad.telegrambot.Callback;
import com.pengrad.telegrambot.TelegramBot;
import com.pengrad.telegrambot.model.Message;
import com.pengrad.telegrambot.model.Update;
import com.pengrad.telegrambot.request.GetUpdates;
import com.pengrad.telegrambot.request.SendMessage;
import com.pengrad.telegrambot.response.GetUpdatesResponse;
import com.pengrad.telegrambot.response.SendResponse;

import java.io.IOException;
import java.util.List;
import java.util.Random;

public class AddDevice extends AppCompatActivity {
    private int page_no;
    private long chat_id;
    private final String code = randCode(4, 4);
    FrameLayout p1;
    FrameLayout p2;
    Button btn_nxt;
    Button btn_back;
    SubscriptionManager subscriptionManager;
    CheckBox[] boxes;
    TelegramBot bot;
    List<SubscriptionInfo> sims;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_add_device);
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
            return insets;
        });
        page_no = 0;
        p1 = (FrameLayout) findViewById(R.id.p1);
        p2 = (FrameLayout) findViewById(R.id.p2);
        btn_nxt = (Button) findViewById(R.id.btn_nxt);
        btn_back = (Button) findViewById(R.id.btn_back);

        ((TextView) findViewById(R.id.conn_code)).setText(code);
        bot = new TelegramBot(this.getString(R.string.bot_token));

        subscriptionManager = SubscriptionManager.from(this);
        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
            // TODO: Consider calling
            //    ActivityCompat#requestPermissions
            // here to request the missing permissions, and then overriding
            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
            //                                          int[] grantResults)
            // to handle the case where the user grants the permission. See the documentation
            // for ActivityCompat#requestPermissions for more details.
            return;
        }
        sims = subscriptionManager.getActiveSubscriptionInfoList();
        Log.d("subscription", "onCreate: "+ sims.get(0).getSubscriptionId());
        LinearLayout ll = findViewById(R.id.ll_sims);
        new Thread(new Runnable() {
            @Override
            public void run() {
                boxes = new CheckBox[sims.size()];
                for(int i = 0; i < sims.size(); i++){
                    boxes[i] = new CheckBox(AddDevice.this);
                    boxes[i].setText("SIM " + sims.get(i).getNumber());
                    int finalI = i;
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            ll.addView(boxes[finalI]);
                        }
                    });
                }
            }
        }).start();
    }

    public void back(View view) {
        switch (page_no){
            case 0:
                finish();
                break;
            case 1:
                page_no = 0;
                p1.setVisibility(View.VISIBLE);
                Animation a1 = AnimationUtils.loadAnimation(this, R.anim.slide_in_left);
                p1.startAnimation(a1);

                Animation a2 = AnimationUtils.loadAnimation(this,R.anim.slide_out_right);
                a2.setAnimationListener(new Animation.AnimationListener() {
                    @Override
                    public void onAnimationStart(Animation animation) {

                    }

                    @Override
                    public void onAnimationEnd(Animation animation) {
                        p2.setVisibility(View.INVISIBLE);
                    }

                    @Override
                    public void onAnimationRepeat(Animation animation) {

                    }
                });
                p2.startAnimation(a2);
                ((Button)findViewById(R.id.btn_nxt)).setText(R.string.next);
                ((Button)findViewById(R.id.btn_back)).setText(R.string.cancel);
                break;
        }
    }

    public void nxt(View view) {
        switch (page_no){
            case 0:
                page_no=1;
                Animation a1 = AnimationUtils.loadAnimation(this, R.anim.slide_out_left);
                a1.setAnimationListener(new Animation.AnimationListener() {
                    @Override
                    public void onAnimationStart(Animation animation) {

                    }

                    @Override
                    public void onAnimationEnd(Animation animation) {
                        p1.setVisibility(View.INVISIBLE);
                    }

                    @Override
                    public void onAnimationRepeat(Animation animation) {

                    }
                });
                p1.startAnimation(a1);

                p2.setVisibility(View.VISIBLE);
                Animation a2 = AnimationUtils.loadAnimation(this,R.anim.slide_in_right);
                p2.startAnimation(a2);
                btn_nxt.setText(R.string.finish);
                btn_back.setText(R.string.back);
                break;
            case 1:
                StringBuilder backsims = new StringBuilder();
                for(int i=0; i < boxes.length; i++){
                    if(boxes[i].isChecked()){
                        if(!backsims.toString().isEmpty())
                            backsims.append('#');
                        backsims.append(sims.get(i).getSubscriptionId());
                    }
                }
                dbViewmodel dbv = new dbViewmodel(this);
                Rule rule = new Rule();
                rule.name = ((TextView)findViewById(R.id.txt_blk_name)).getText().toString();
                rule.sims = backsims.toString();
                rule.chat_id = chat_id;
                dbv.add_rule(rule);
                SendMessage request = new SendMessage(chat_id, "Congratulations!\nYour Telegram account is now verified as a SMS receiver account of your target device. From now on, all the incoming SMSs will be forwarded here to you. ;)");
                bot.execute(request);
                finish();
                break;
        }
    }
    static String randCode(int length, int section){
        StringBuilder buffer = new StringBuilder((length*section)+section-1);
        for(int i = 1; i<=section; i++){
            for(int j=0;j<length;j++){
                int randomInt = new Random().nextInt(9);
                buffer.append(String.valueOf(randomInt));
            }
            if(i < section)
                buffer.append('-');
        }
        return buffer.toString();
    }
    public void updateChatID(long chatID){
        chat_id = chatID;
        TextView chid = findViewById(R.id.chat_id);
        chid.setText("Chat ID: " + String.valueOf(chatID));
        chid.setVisibility(View.VISIBLE);
        ((Button)findViewById(R.id.btn_nxt)).setEnabled(true);
    }
    public void verify(View view) {
        GetUpdates getUpdates = new GetUpdates().limit(100).offset(0).timeout(0);
        bot.execute(getUpdates, new Callback<GetUpdates, GetUpdatesResponse>() {
            @Override
            public void onResponse(GetUpdates request, GetUpdatesResponse response) {
                List<Update> updates = response.updates();
                boolean verified = false;
                for (Update update : updates){
                    if(update.message().text().equals(code)){
                        verified = true;
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                updateChatID(update.message().chat().id());
                                Toast.makeText(AddDevice.this, "Verified", Toast.LENGTH_LONG).show();
                            }
                        });
                    }
                }
                if(!verified){
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            Toast.makeText(AddDevice.this, "Could not verify", Toast.LENGTH_SHORT).show();
                        }
                    });
                }
            }

            @Override
            public void onFailure(GetUpdates request, IOException e) {
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(AddDevice.this, "Could not verify", Toast.LENGTH_SHORT).show();
                    }
                });
            }
        });
    }
}