package groupone.green_red.boihaat.fragment;

import android.app.Fragment;
import android.app.FragmentTransaction;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.design.widget.Snackbar;
import android.support.v7.widget.AppCompatButton;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TextView;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;

import groupone.green_red.boihaat.R;
import groupone.green_red.boihaat.activity.DrawerActivity;
import groupone.green_red.boihaat.app.AppConfig;
import groupone.green_red.boihaat.app.RequestInterface;
import groupone.green_red.boihaat.app.ServerRequest;
import groupone.green_red.boihaat.app.ServerResponse;
import groupone.green_red.boihaat.models.User;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;


public class LoginFragment extends Fragment implements View.OnClickListener {

    private EditText et_email, et_password;
    private ProgressBar progress;
    private SharedPreferences pref;


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.fragment_login, container, false);
        initViews(view);
        return view;
    }

    private void initViews(View view) {

        pref = getActivity().getPreferences(0);

        AppCompatButton btn_login = view.findViewById(R.id.btn_login);
        TextView tv_register = view.findViewById(R.id.tv_register);
        et_email = view.findViewById(R.id.et_email);
        et_password = view.findViewById(R.id.et_password);

        progress = view.findViewById(R.id.progress);

        btn_login.setOnClickListener(this);
        tv_register.setOnClickListener(this);
    }

    @SuppressWarnings("ConstantConditions")
    @Override
    public void onClick(View v) {

        switch (v.getId()) {

            case R.id.tv_register:
                goToRegister();
                break;

            case R.id.btn_login:
                String email = et_email.getText().toString();
                String password = et_password.getText().toString();

                if (!email.isEmpty() && !password.isEmpty()) {

                    progress.setVisibility(View.VISIBLE);
                    loginProcess(email, password);

                } else {

                    Snackbar.make(getView(), "Fields are empty !", Snackbar.LENGTH_LONG).show();
                }
                break;

        }
    }

    private void loginProcess(String email, String password) {


        Gson gson = new GsonBuilder()
                .setLenient()
                .create();

        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(AppConfig.BASE_URL)
                .addConverterFactory(GsonConverterFactory.create(gson))
                .build();

        RequestInterface requestInterface = retrofit.create(RequestInterface.class);

        User user = new User();
        user.setEmail(email);
        user.setPassword(password);
        ServerRequest request = new ServerRequest();
        request.setOperation(AppConfig.LOGIN_OPERATION);
        request.setUser(user);
        Call<ServerResponse> response = requestInterface.operation(request);

        response.enqueue(new Callback<ServerResponse>() {
            @SuppressWarnings("ConstantConditions")
            @Override
            public void onResponse(Call<ServerResponse> call, retrofit2.Response<ServerResponse> response) {

                ServerResponse resp = response.body();
                Snackbar.make(getView(), resp.getMessage(), Snackbar.LENGTH_LONG).show();

                if (resp.getResult().equals(AppConfig.SUCCESS)) {
                    SharedPreferences.Editor editor = pref.edit();
                    editor.putBoolean(AppConfig.IS_LOGGED_IN, true);
                    editor.putString(AppConfig.EMAIL, resp.getUser().getEmail());
                    editor.putString(AppConfig.NAME, resp.getUser().getName());
                    editor.putString(AppConfig.UNIQUE_ID, resp.getUser().getUnique_id());
                    editor.apply();
                    goToHome();

                }
                progress.setVisibility(View.INVISIBLE);
            }

            @SuppressWarnings("ConstantConditions")
            @Override
            public void onFailure(Call<ServerResponse> call, Throwable t) {

                progress.setVisibility(View.INVISIBLE);
                Log.d(AppConfig.TAG, "failed");
                Snackbar.make(getView(), t.getLocalizedMessage(), Snackbar.LENGTH_LONG).show();

            }
        });
    }

    private void goToRegister() {

        Fragment register = new RegisterFragment();
        FragmentTransaction ft = getFragmentManager().beginTransaction();
        ft.replace(R.id.frame, register);
        ft.addToBackStack(null);
        ft.commit();
    }

    private void goToHome() {
        Intent intentHome = new Intent(getActivity(), DrawerActivity.class);
        startActivity(intentHome);
        getActivity().overridePendingTransition(0, 0);
//
//        Fragment profile = new ProfileFragment();
//        FragmentTransaction ft = getFragmentManager().beginTransaction();
//        ft.replace(R.id.fragment_frame, profile);
//        ft.commit();
    }
}