package com.jarifjak.smsstart;

import androidx.appcompat.app.AppCompatActivity;

import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.util.Log;
import android.view.View;
import android.widget.Toast;

import com.jarifjak.smsstart.databinding.ActivityMainBinding;
import com.karumi.dexter.Dexter;
import com.karumi.dexter.MultiplePermissionsReport;
import com.karumi.dexter.PermissionToken;
import com.karumi.dexter.listener.PermissionDeniedResponse;
import com.karumi.dexter.listener.PermissionGrantedResponse;
import com.karumi.dexter.listener.PermissionRequest;
import com.karumi.dexter.listener.multi.MultiplePermissionsListener;
import com.karumi.dexter.listener.single.DialogOnDeniedPermissionListener;
import com.karumi.dexter.listener.single.PermissionListener;

import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Objects;

public class MainActivity extends AppCompatActivity {

    private ActivityMainBinding binding;
    HashMap<Integer, HashMap<String, Object>> carriersInfo = new LinkedHashMap<>();
    int activeSubscriptionId;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        binding = ActivityMainBinding.inflate(getLayoutInflater());
        setContentView(binding.getRoot());

        Objects.requireNonNull(getSupportActionBar()).hide();

        init();
    }

    private void init() {

        setPermission();
        getAndSetSimInfo();
        setListener();
    }


    private void sendBulkSMS(String inputNumber, String msg) {

        String[] numbers = inputNumber.split(", ");

        new Thread(() -> {

            for (String number : numbers) {

                Log.d("TAG", "run: \n\n\n\n" + number);

                try {

                    SmsManager smsManager = null;

                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {

                        smsManager = SmsManager.getSmsManagerForSubscriptionId(activeSubscriptionId);

                    } else {

                        smsManager = SmsManager.getDefault();
                    }


                    smsManager.sendTextMessage(number,null, msg, null, null);

                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {

                            Toast.makeText(getApplicationContext(),"Message Sent",Toast.LENGTH_LONG).show();
                        }
                    });

                } catch (Exception e) {

                    Toast.makeText(getApplicationContext(),"Some fields are Empty",Toast.LENGTH_LONG).show();
                }

                try {

                    Thread.sleep(1000);

                } catch (InterruptedException e) {

                    e.printStackTrace();
                }
            }
        }).start();
    }

    private void getAndSetSimInfo() {

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {

            SubscriptionManager subscriptionManager = SubscriptionManager.from(getApplicationContext());

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

                if (checkSelfPermission(Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
                    return;
                }
            }

            List<SubscriptionInfo> subscriptionInfoList = subscriptionManager.getActiveSubscriptionInfoList();

            int id = 0;

            if (subscriptionInfoList != null && subscriptionInfoList.size() > 0) {

                for (SubscriptionInfo subscriptionInfo : subscriptionInfoList) {

                    if (id == 0) {

                        activeSubscriptionId = subscriptionInfo.getSubscriptionId();

                    }

                    int subscriptionId = subscriptionInfo.getSubscriptionId();
                    String number = subscriptionInfo.getNumber();
                    String carrierName = (String) subscriptionInfo.getCarrierName();

                    HashMap<String, Object> carrierInfo = new LinkedHashMap<>();
                    carrierInfo.put("subscriptionId", subscriptionId);
                    carrierInfo.put("carrierName", carrierName);
                    carrierInfo.put("number", number);

                    carriersInfo.put(id, carrierInfo);

                    if (id == 0) {

                        binding.sim1Radio.setText(carrierName);

                    } else {

                        binding.sim2Radio.setText(carrierName);

                    }

                    id++;

                }
            }
        }
    }

    private void setListener() {

        binding.sendButton.setOnClickListener(v -> {

            String number = Objects.requireNonNull(binding.numberTV.getText()).toString();
            String msg= Objects.requireNonNull(binding.smsTV.getText()).toString();

            sendBulkSMS(number, msg);

        });

        binding.sim1Radio.setOnClickListener(v -> activeSubscriptionId = (int) carriersInfo.get(0).get("subscriptionId"));

        binding.sim2Radio.setOnClickListener(v -> activeSubscriptionId = (int) carriersInfo.get(1).get("subscriptionId"));

    }

    private void setPermission() {

        Dexter.withContext(this)
                .withPermissions(Manifest.permission.SEND_SMS,
                        Manifest.permission.READ_PHONE_STATE)
                .withListener(new MultiplePermissionsListener() {
                    @Override
                    public void onPermissionsChecked(MultiplePermissionsReport multiplePermissionsReport) {

                        Toast.makeText(MainActivity.this,
                                multiplePermissionsReport.areAllPermissionsGranted() ? "Granted ALl" : "Denied", Toast.LENGTH_SHORT).show();
                    }

                    @Override
                    public void onPermissionRationaleShouldBeShown(List<PermissionRequest> list, PermissionToken permissionToken) {

                    }

                }).check();

    }

}