package com.example.germanverbsapp;

import com.google.android.gms.ads.MobileAds;
import com.google.android.gms.ads.initialization.InitializationStatus;
import com.google.android.gms.ads.initialization.OnInitializationCompleteListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;

import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.content.pm.ActivityInfo;
import android.content.res.Resources;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import android.content.Intent;
import android.view.View;

import androidx.appcompat.app.AppCompatActivity;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import android.app.AlertDialog;
import android.content.DialogInterface;

public class MainActivity extends AppCompatActivity {
    private AdView mAdView;




    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        MobileAds.initialize(this, new OnInitializationCompleteListener() {
            @Override
            public void onInitializationComplete(InitializationStatus initializationStatus) {
            }
        });
        mAdView = findViewById(R.id.adView);
        AdRequest adRequest = new AdRequest.Builder().build();
        mAdView.loadAd(adRequest);


        final Resources res = getResources();
        final String[] verbsArray = res.getStringArray(R.array.verbsArray); //for the spinner
        final Spinner spinner = findViewById(R.id.spinner);
        final ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.verbsArray, android.R.layout.simple_spinner_item);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(adapter);




        SharedPreferences prefs = getSharedPreferences("prefs", MODE_PRIVATE);
        boolean firstStart = prefs.getBoolean("firstStart", true);
        if (firstStart == true) {
            showStartDialog();
        }


        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {

                EditText inputEditText = findViewById(R.id.inputEditText);

                if (position != 0) {
                    inputEditText.setText(spinner.getSelectedItem().toString());
                }
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        });
    }


    String userInput;
    String outputTextVerb;
    String outputTextMeaning;

    String outputTextL1;
    String outputTextL2;
    String outputTextL3;
    String outputTextL4;
    String outputTextL5;
    String outputTextL6;
    String outputTextL7;

    String outputTextR1;
    String outputTextR2;
    String outputTextR3;
    String outputTextR4;
    String outputTextR5;
    String outputTextR6;
    String outputTextR7;

    final TextView textView3 = findViewById(R.id.textView3);




        public void sendSecondActivity(View view){

            textView3.setText("This worked.");

            Intent intent = new Intent(MainActivity.this, SearchResultActivity.class);
            startActivity(intent);


            Resources res = getResources();
            String[] verbsArray = res.getStringArray(R.array.verbsArray); //for the spinner
            Spinner spinner = findViewById(R.id.spinner);
            ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.verbsArray, android.R.layout.simple_spinner_item);

            spinner.setSelection(adapter.getPosition(userInput));

            BufferedReader textReader = null;
            String scanned, userInput, userInputAst, userInputSpace;
            EditText inputEditText = (EditText) findViewById(R.id.inputEditText);

            userInput = inputEditText.getText().toString();
            inputEditText.getText().toString();
            userInputAst = "*" + userInput;
            userInputSpace = " " + userInput;

            label1:
            try {
                textReader = new BufferedReader(new InputStreamReader(getAssets().open("verbs.txt")));
                textReader.mark(25000);

                textReader.reset();

                for (int i = 0; i < 3000; i++) {
                    textReader.mark(500);
                    for (int j = 1; j <= 16; j++) {
                        scanned = textReader.readLine();
                        if (userInputAst.equals(scanned) || userInput.equals(scanned) || scanned.contains(userInputSpace)) {
                            if (userInput.equals("Present:") || userInput.equals("Imperfect:")) {
                                spinner.setSelection(0);
                                break label1;
                            }
                            textReader.reset();

                            String verbAst = textReader.readLine();
                            String verb = verbAst.replace("*", "");

                            if (scanned.equals("*****")) {
                                spinner.setSelection(0);
                                outputTextMeaning = "A valid irregular verb was not entered.";
                                break label1;
                            }

                            //if the user input matches a valid verb, the below is carried out
                            outputTextVerb = verb;
                            outputTextMeaning = textReader.readLine();

                            outputTextL1 = textReader.readLine();
                            outputTextL2 = textReader.readLine();
                            outputTextL3 = textReader.readLine();
                            outputTextL4 = textReader.readLine();
                            outputTextL5 = textReader.readLine();
                            outputTextL6 = textReader.readLine();
                            outputTextL7 = textReader.readLine();

                            outputTextR1 = textReader.readLine();
                            outputTextR2 = textReader.readLine();
                            outputTextR3 = textReader.readLine();
                            outputTextR4 = textReader.readLine();
                            outputTextR5 = textReader.readLine();
                            outputTextR6 = textReader.readLine();
                            outputTextR7 = textReader.readLine();

                            spinner.setSelection(adapter.getPosition(verb));


                            break label1;
                        }


                    }
                }

            } catch (IOException e) {
                System.out.println(e.getMessage());
            }
        }








    private void showStartDialog(){
        new AlertDialog.Builder(this)
                .setTitle("Welcome")
                .setMessage("To use this app, either use the scroll bar or search for an irregular verb. You can search for an infinitive or search for a conjugated verb e.g. 'du isst'.")
                .setPositiveButton("Ok!", new DialogInterface.OnClickListener(){
                    @Override
                    public void onClick(DialogInterface dialog, int which){
                        dialog.dismiss();
                    }
                })
                .create().show();
        SharedPreferences prefs = getSharedPreferences("prefs", MODE_PRIVATE);
        SharedPreferences.Editor editor = prefs.edit();
        editor.putBoolean("firstStart", false);
        editor.apply();
    }

}

//basically set it back to how it was before and then if reader reads '*****' set reader back to top (perhaps using .reset after setting .mark before it begins reading file, and then go on from there