API connection for registration, login, logout, restaurants list, restaurants map

UI/AndroidApp/flavoursWithoutBorders/app/src/main/java/gr/auth/databases/flavours/activities/LoginActivity.java

@@ -1,20 +1,37 @@
 package gr.auth.databases.flavours.activities;
 
 import android.content.Intent;
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.view.View;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.EditText;
+import android.widget.Toast;
 
+import androidx.appcompat.widget.AppCompatButton;
 import gr.auth.databases.flavours.R;
 import gr.auth.databases.flavours.activities.main.MainActivity;
 import gr.auth.databases.flavours.base.BaseActivity;
 
 public class LoginActivity extends BaseActivity {
+    private AppCompatButton loginButton;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_login);
 
+        if (!sessionManager.isLoginScreenDefault()) {
+            //Go to main
+            Intent intent = new Intent(LoginActivity.this, MainActivity.class);
+            startActivity(intent);
+            finish();
+            return; //Avoid executing the code below
+        }
+
+        final EditText usernameInput = findViewById(R.id.login_username);
+        final EditText passwordInput = findViewById(R.id.login_password);
+
         findViewById(R.id.login_btn_sign_up).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
@@ -24,13 +41,49 @@ public class LoginActivity extends BaseActivity {
             }
         });
 
-        findViewById(R.id.login_btn_login).setOnClickListener(new View.OnClickListener() {
+        loginButton = findViewById(R.id.login_btn_login);
+        loginButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                Intent intent = new Intent(view.getContext(), MainActivity.class);
+                LoginTask loginTask = new LoginTask();
+                loginTask.execute(usernameInput.getText().toString(), passwordInput.getText().toString());
+            }
+        });
+    }
+
+    private class LoginTask extends AsyncTask<String, Void, Integer> {
+        @Override
+        protected void onPreExecute() { //Show a progress dialog until done
+            loginButton.setEnabled(false);
+
+            View view = getCurrentFocus();
+            if (view != null) {
+                InputMethodManager imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
+                imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
+            }
+        }
+
+        @Override
+        protected Integer doInBackground(String... params) {
+            return sessionManager.login(params[0], params[1]);
+        }
+
+        @Override
+        protected void onPostExecute(Integer result) { //Handle attempt result
+            Toast.makeText(getApplicationContext(),
+                    "Welcome, " + sessionManager.getUsername() + "!", Toast.LENGTH_LONG)
+                    .show();
+
+            Intent intent = new Intent(getBaseContext(), MainActivity.class);
             startActivity(intent);
             finish();
         }
-        });
+
+        @Override
+        protected void onCancelled() {
+            super.onCancelled();
+            loginButton.setEnabled(true); //Re-enable login button
+        }
+
     }
 }

UI/AndroidApp/flavoursWithoutBorders/app/src/main/java/gr/auth/databases/flavours/activities/SignUpActivity.java

@@ -4,21 +4,28 @@ import android.annotation.SuppressLint;
 import android.app.DatePickerDialog;
 import android.app.Dialog;
 import android.content.Intent;
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.inputmethod.InputMethodManager;
 import android.widget.DatePicker;
 import android.widget.EditText;
+import android.widget.Toast;
 
 import java.util.Calendar;
 import java.util.Objects;
 
 import androidx.annotation.NonNull;
+import androidx.appcompat.widget.AppCompatButton;
 import androidx.fragment.app.DialogFragment;
 import gr.auth.databases.flavours.R;
+import gr.auth.databases.flavours.activities.main.MainActivity;
 import gr.auth.databases.flavours.base.BaseActivity;
 
 public class SignUpActivity extends BaseActivity {
+    private EditText emailInput, usernameInput, passwordInput, birthdayInput;
+    private AppCompatButton signupButton;
 
     @SuppressLint("ClickableViewAccessibility")
     @Override
@@ -35,7 +42,10 @@ public class SignUpActivity extends BaseActivity {
             }
         });
 
-        EditText birthdayInput = findViewById(R.id.sign_up_birthday);
+        emailInput = findViewById(R.id.sign_up_email);
+        usernameInput = findViewById(R.id.sign_up_username);
+        passwordInput = findViewById(R.id.sign_up_password);
+        birthdayInput = findViewById(R.id.sign_up_birthday);
         birthdayInput.setOnTouchListener(new View.OnTouchListener() {
             @Override
             public boolean onTouch(View view, MotionEvent motionEvent) {
@@ -46,6 +56,18 @@ public class SignUpActivity extends BaseActivity {
                 return false;
             }
         });
+
+        signupButton = findViewById(R.id.sign_up_btn_sign_up);
+        signupButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                SignupTask signupTask = new SignupTask();
+                signupTask.execute(emailInput.getText().toString(),
+                        usernameInput.getText().toString(),
+                        passwordInput.getText().toString(),
+                        birthdayInput.getText().toString());
+            }
+        });
     }
 
     public static class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
@@ -69,4 +91,40 @@ public class SignUpActivity extends BaseActivity {
             birthdayInput.setText(getResources().getString(R.string.sign_up_birthday_placeholder, year, month + 1, day));
         }
     }
+
+    private class SignupTask extends AsyncTask<String, Void, Integer> {
+        @Override
+        protected void onPreExecute() { //Show a progress dialog until done
+            signupButton.setEnabled(false);
+
+            View view = getCurrentFocus();
+            if (view != null) {
+                InputMethodManager imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
+                imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
+            }
+        }
+
+        @Override
+        protected Integer doInBackground(String... params) {
+            return sessionManager.signup(params[0], params[1], params[2], params[3]);
+        }
+
+        @Override
+        protected void onPostExecute(Integer result) { //Handle attempt result
+            Toast.makeText(getApplicationContext(),
+                    "Welcome, " + sessionManager.getUsername() + "!", Toast.LENGTH_LONG)
+                    .show();
+
+            Intent intent = new Intent(getBaseContext(), MainActivity.class);
+            startActivity(intent);
+            finish();
+        }
+
+        @Override
+        protected void onCancelled() {
+            super.onCancelled();
+            signupButton.setEnabled(true); //Re-enable login button
+        }
+
+    }
 }

UI/AndroidApp/flavoursWithoutBorders/app/src/main/java/gr/auth/databases/flavours/activities/main/MainActivity.java

@@ -2,7 +2,9 @@ package gr.auth.databases.flavours.activities.main;
 
 import android.content.DialogInterface;
 import android.content.Intent;
+import android.os.AsyncTask;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -11,6 +13,9 @@ import android.widget.EditText;
 
 import com.google.android.material.floatingactionbutton.FloatingActionButton;
 
+import org.json.JSONArray;
+import org.json.JSONObject;
+
 import java.util.ArrayList;
 
 import androidx.annotation.NonNull;
@@ -28,10 +33,17 @@ import gr.auth.databases.flavours.activities.AddRestaurantActivity;
 import gr.auth.databases.flavours.activities.main.fragments.MainListFragment;
 import gr.auth.databases.flavours.activities.main.fragments.MainMapFragment;
 import gr.auth.databases.flavours.base.BaseActivity;
+import gr.auth.databases.flavours.model.Restaurant;
+import okhttp3.HttpUrl;
+import okhttp3.Request;
+import okhttp3.Response;
 
 public class MainActivity extends BaseActivity {
+    private static final HttpUrl restaurantsUrl = HttpUrl.parse("http://83.212.109.171:8181/api/restaurant/");
     private static final int NUM_PAGES = 2;
 
+    private ArrayList<Restaurant> restaurants = new ArrayList<>();
+
     private ViewPager viewPager;
     private MenuItem menuMapItem;
     private FloatingActionButton FAB;
@@ -88,6 +100,9 @@ public class MainActivity extends BaseActivity {
 
         PagerAdapter pagerAdapter = new MainPagerAdapter(getSupportFragmentManager());
         viewPager.setAdapter(pagerAdapter);
+
+        MainTask mainTask = new MainTask();
+        mainTask.execute();
     }
 
     @Override
@@ -223,6 +238,44 @@ public class MainActivity extends BaseActivity {
         return super.onOptionsItemSelected(item);
     }
 
+    /*private void setupViewPager(ViewPager viewPager) {
+        RestaurantPagerAdapter adapter = new RestaurantPagerAdapter(getSupportFragmentManager());
+        adapter.addFrag(DrinkInfoFragment.newInstance(64), "INFO");
+        adapter.addFrag(DrinkIngredientsFragment.newInstance(64), "INGREDIENTS");
+        adapter.addFrag(DrinkRatingsFragment.newInstance(64), "RATINGS");
+        viewPager.setAdapter(adapter);
+    }
+
+    private class MainPagerAdapter extends FragmentPagerAdapter {
+        private final List<Fragment> mFragmentList = new ArrayList<>();
+        private final List<String> mFragmentTitleList = new ArrayList<>();
+
+        MainPagerAdapter(FragmentManager manager) {
+            super(manager);
+        }
+
+        @NonNull
+        @Override
+        public Fragment getItem(int position) {
+            return mFragmentList.get(position);
+        }
+
+        @Override
+        public int getCount() {
+            return mFragmentList.size();
+        }
+
+        void addFrag(Fragment fragment, String title) {
+            mFragmentList.add(fragment);
+            mFragmentTitleList.add(title);
+        }
+
+        @Override
+        public CharSequence getPageTitle(int position) {
+            return mFragmentTitleList.get(position);
+        }
+    }*/
+
     private class MainPagerAdapter extends FragmentStatePagerAdapter {
         MainPagerAdapter(FragmentManager fm) {
             super(fm);
@@ -232,9 +285,9 @@ public class MainActivity extends BaseActivity {
         @Override
         public Fragment getItem(int position) {
             if (position == 0) {
-                return new MainListFragment();
+                return MainListFragment.newInstance(restaurants);
             } else {
-                return new MainMapFragment();
+                return MainMapFragment.newInstance(restaurants);
             }
         }
 
@@ -243,4 +296,53 @@ public class MainActivity extends BaseActivity {
             return NUM_PAGES;
         }
     }
+
+    private class MainTask extends AsyncTask<Void, Void, Integer> {
+        private static final String JSON_TAG_RESTAURANT_ID = "restaurant_id";
+        private static final String JSON_TAG_RESTAURANT_NAME = "restaurant_name";
+        private static final String JSON_TAG_RESTAURANT_CATEGORY = "restaurant_category";
+        private static final String JSON_TAG_RESTAURANT_LONGITUDE = "restaurant_longitude";
+        private static final String JSON_TAG_RESTAURANT_LATITUDE = "restaurant_latitude";
+        private static final String JSON_TAG_RESTAURANT_OPENING = "restaurant_opening";
+        private static final String JSON_TAG_RESTAURANT_CLOSING = "restaurant_closing";
+
+        @Override
+        protected void onPreExecute() { //Show a progress dialog until done
+        }
+
+        @Override
+        protected Integer doInBackground(Void... params) {
+            //Builds the signup request
+            Request request = new Request.Builder()
+                    .url(restaurantsUrl)
+                    .build();
+
+            try {
+                //Makes request & handles response
+                Response response = client.newCall(request).execute();
+
+                String result = response.body().string();
+                JSONArray jsonRestaurants = new JSONArray(result);
+
+                for (int restaurantIndex = 0; restaurantIndex < jsonRestaurants.length(); ++restaurantIndex) {
+                    JSONObject jsonRestaurant = jsonRestaurants.getJSONObject(restaurantIndex);
+                    restaurants.add(new Restaurant(
+                            jsonRestaurant.getInt(JSON_TAG_RESTAURANT_ID),
+                            jsonRestaurant.getString(JSON_TAG_RESTAURANT_NAME),
+                            jsonRestaurant.getString(JSON_TAG_RESTAURANT_CATEGORY),
+                            jsonRestaurant.getDouble(JSON_TAG_RESTAURANT_LONGITUDE),
+                            jsonRestaurant.getDouble(JSON_TAG_RESTAURANT_LATITUDE),
+                            jsonRestaurant.getString(JSON_TAG_RESTAURANT_OPENING),
+                            jsonRestaurant.getString(JSON_TAG_RESTAURANT_CLOSING)));
+                }
+                return 1;
+            } catch (Exception e) {
+                return 2;
+            }
+        }
+
+        @Override
+        protected void onPostExecute(Integer result) { //Handle attempt result
+        }
+    }
 }

UI/AndroidApp/flavoursWithoutBorders/app/src/main/java/gr/auth/databases/flavours/activities/main/MainAdapter.java

@@ -2,12 +2,15 @@ package gr.auth.databases.flavours.activities.main;
 
 import android.content.Context;
 import android.content.Intent;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import java.util.ArrayList;
+
 import androidx.annotation.NonNull;
 import androidx.cardview.widget.CardView;
 import androidx.recyclerview.widget.RecyclerView;
@@ -17,9 +20,9 @@ import gr.auth.databases.flavours.model.Restaurant;
 
 public class MainAdapter extends RecyclerView.Adapter<MainAdapter.RestaurantViewHolder> {
     private Context context;
-    private Restaurant[] restaurants;
+    private ArrayList<Restaurant> restaurants;
 
-    public MainAdapter(Context context, Restaurant[] restaurants) {
+    public MainAdapter(Context context, ArrayList<Restaurant> restaurants) {
         this.context = context;
         this.restaurants = restaurants;
     }
@@ -42,40 +45,42 @@ public class MainAdapter extends RecyclerView.Adapter<MainAdapter.RestaurantView
                 context.startActivity(intent);
             }
         });
-        holder.name.setText(restaurants[position].getName());
+        holder.name.setText(restaurants.get(position).getName());
         holder.workingHours.setText(context.getString(R.string.main_row_working_hours_placeholder,
-                restaurants[position].getOpeningTime().substring(0, 5),
-                restaurants[position].getClosingTime().substring(0, 5)));
+                restaurants.get(position).getOpeningTime().substring(0, 5),
+                restaurants.get(position).getClosingTime().substring(0, 5)));
 
-        if (restaurants[position].getType().equals("restaurant")) {
+        switch (restaurants.get(position).getType()) {
+            case "restaurant":
                 holder.typeImage.setImageResource(R.drawable.restaurant_marker);
                 holder.typeText.setText(context.getResources().getString(R.string.main_restaurant_type));
-        }
-        if (restaurants[position].getType().equals("bar")) {
+                break;
+            case "bar":
                 holder.typeImage.setImageResource(R.drawable.bar_marker);
                 holder.typeText.setText(context.getResources().getString(R.string.main_bar_type));
-        }
-        if (restaurants[position].getType().equals("cafeteria")) {
+                break;
+            case "cafeteria":
                 holder.typeImage.setImageResource(R.drawable.cafeteria_marker);
                 holder.typeText.setText(context.getResources().getString(R.string.main_cafeteria_type));
-        }
-        if (restaurants[position].getType().equals("pub")) {
+                break;
+            case "pub":
                 holder.typeImage.setImageResource(R.drawable.pub_marker);
                 holder.typeText.setText(context.getResources().getString(R.string.main_pub_type));
-        }
-        if (restaurants[position].getType().equals("fast_food")) {
+                break;
+            case "fast_food":
                 holder.typeImage.setImageResource(R.drawable.fast_food_marker);
                 holder.typeText.setText(context.getResources().getString(R.string.main_fast_food_type));
-        }
-        if (restaurants[position].getType().equals("ethnic")) {
+                break;
+            case "ethnic":
                 holder.typeImage.setImageResource(R.drawable.restaurant_marker);
                 holder.typeText.setText(context.getResources().getString(R.string.main_ethnic_type));
+                break;
         }
     }
 
     @Override
     public int getItemCount() {
-        return restaurants.length;
+        return restaurants.size();
     }
 
     static class RestaurantViewHolder extends RecyclerView.ViewHolder {

UI/AndroidApp/flavoursWithoutBorders/app/src/main/java/gr/auth/databases/flavours/activities/main/fragments/MainListFragment.java

@@ -5,6 +5,8 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import java.util.ArrayList;
+
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 import androidx.recyclerview.widget.LinearLayoutManager;
@@ -14,7 +16,24 @@ import gr.auth.databases.flavours.activities.main.MainAdapter;
 import gr.auth.databases.flavours.model.Restaurant;
 
 public class MainListFragment extends Fragment {
-    private Restaurant[] restaurants = new Restaurant[13];
+    private static final String RESTAURANTS_TAG = "RESTAURANTS_TAG";
+
+    private ArrayList<Restaurant> restaurants;
+
+    public static MainListFragment newInstance(ArrayList<Restaurant> restaurants) {
+        MainListFragment fragment = new MainListFragment();
+        Bundle args = new Bundle();
+        args.putParcelableArrayList(RESTAURANTS_TAG, restaurants);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        assert getArguments() != null;
+        this.restaurants = getArguments().getParcelableArrayList(RESTAURANTS_TAG);
+    }
 
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
@@ -25,20 +44,6 @@ public class MainListFragment extends Fragment {
         LinearLayoutManager layoutManager = new LinearLayoutManager(getContext());
         recyclerView.setLayoutManager(layoutManager);
 
-        restaurants[0] = new Restaurant("U Fleků", "pub", "18:00:00", "04:00:00");
-        restaurants[1] = new Restaurant("Σ σύγχρονα εστιατόρια", "restaurant", "12:00:00", "22:00:00");
-        restaurants[2] = new Restaurant("U Fleků Garden", "pub", "18:00:00", "02:00:00");
-        restaurants[3] = new Restaurant("McDonald\'s", "fast_food", "12:00:00", "23:59:00");
-        restaurants[4] = new Restaurant("Grill 15", "fast_food", "12:00:00", "01:30:00");
-        restaurants[5] = new Restaurant("Butterflies and Hurricanes", "cafeteria", "08:00:00", "20:00:00");
-        restaurants[6] = new Restaurant("The Hoppy Pub", "pub", "17:30:00", "01:30:00");
-        restaurants[7] = new Restaurant("Belleville sin patron", "bar", "12:00:00", "02:00:00");
-        restaurants[8] = new Restaurant("Αιθερόπλοο", "pub", "08:00:00", "02:00:00");
-        restaurants[9] = new Restaurant("Οδυσσέας", "restaurant", "12:30:00", "18:00:00");
-        restaurants[10] = new Restaurant("Pulp", "bar", "09:00:00", "23:59:00");
-        restaurants[11] = new Restaurant("McDonald\'s", "fast_food", "12:00:00", "23:59:00");
-        restaurants[12] = new Restaurant("Γιαννούλα", "restaurant", "13:30:00", "01:00:00");
-
         MainAdapter mainAdapter = new MainAdapter(getContext(), restaurants);
         recyclerView.setAdapter(mainAdapter);
 

UI/AndroidApp/flavoursWithoutBorders/app/src/main/java/gr/auth/databases/flavours/activities/main/fragments/MainMapFragment.java

@@ -1,6 +1,7 @@
 package gr.auth.databases.flavours.activities.main.fragments;
 
 import android.os.Bundle;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -13,12 +14,33 @@ import com.google.android.gms.maps.model.BitmapDescriptorFactory;
 import com.google.android.gms.maps.model.LatLng;
 import com.google.android.gms.maps.model.MarkerOptions;
 
+import java.util.ArrayList;
+
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 import gr.auth.databases.flavours.R;
+import gr.auth.databases.flavours.model.Restaurant;
 
 public class MainMapFragment extends Fragment implements OnMapReadyCallback {
     private MapView gMapView = null;
+    private static final String RESTAURANTS_TAG = "RESTAURANTS_TAG";
+
+    private ArrayList<Restaurant> restaurants;
+
+    public static MainMapFragment newInstance(ArrayList<Restaurant> restaurants) {
+        MainMapFragment fragment = new MainMapFragment();
+        Bundle args = new Bundle();
+        args.putParcelableArrayList(RESTAURANTS_TAG, restaurants);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        assert getArguments() != null;
+        this.restaurants = getArguments().getParcelableArrayList(RESTAURANTS_TAG);
+    }
 
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
@@ -89,72 +111,49 @@ public class MainMapFragment extends Fragment implements OnMapReadyCallback {
     @Override
     public void onMapReady(GoogleMap googleMap) {
         // Add markers and move the camera
-        LatLng uFleku = new LatLng(40.6357, 22.9367);
-        LatLng sSyxronaEstiatoria = new LatLng(40.6173, 22.9597);
-        LatLng uFlekuGarden = new LatLng(40.6354, 22.937);
-        LatLng mcDonalds = new LatLng(40.6463, 22.9206);
-        LatLng grill15 = new LatLng(40.6215, 22.961);
-        LatLng butterfliesAndHurricanes = new LatLng(40.6147, 22.9609);
-        LatLng theHoppyPub = new LatLng(40.6279, 22.9489);
-        LatLng bellevilleSinPatron = new LatLng(40.6337, 22.9518);
-        LatLng aitheroploo = new LatLng(40.6144, 22.9598);
-        LatLng odysseas = new LatLng(40.6369, 22.9534);
-        LatLng pulp = new LatLng(40.6321, 22.9479);
-        LatLng mcDonalds2 = new LatLng(40.5745, 22.9715);
-        LatLng gianoula = new LatLng(40.64, 22.9468);
+        for (Restaurant restaurant : restaurants) {
+            LatLng restaurantPosition = new LatLng(restaurant.getLongitude(), restaurant.getLatitude());
 
+            switch (restaurant.getType()) {
+                case "restaurant":
                     googleMap.addMarker(new MarkerOptions()
-                .position(uFleku)
-                .title("U Fleků")
-                .icon(BitmapDescriptorFactory.fromResource(R.drawable.pub_marker)));
-        googleMap.addMarker(new MarkerOptions()
-                .position(sSyxronaEstiatoria)
-                .title("Σ σύγχρονα εστιατόρια")
+                            .position(restaurantPosition)
+                            .title(restaurant.getName())
                             .icon(BitmapDescriptorFactory.fromResource(R.drawable.restaurant_marker)));
+                    break;
+                case "bar":
                     googleMap.addMarker(new MarkerOptions()
-                .position(uFlekuGarden)
-                .title("U Fleků Garden")
-                .icon(BitmapDescriptorFactory.fromResource(R.drawable.pub_marker)));
-        googleMap.addMarker(new MarkerOptions()
-                .position(mcDonalds)
-                .title("McDonald\'s")
-                .icon(BitmapDescriptorFactory.fromResource(R.drawable.fast_food_marker)));
-        googleMap.addMarker(new MarkerOptions()
-                .position(grill15)
-                .title("Grill 15")
-                .icon(BitmapDescriptorFactory.fromResource(R.drawable.fast_food_marker)));
+                            .position(restaurantPosition)
+                            .title(restaurant.getName())
+                            .icon(BitmapDescriptorFactory.fromResource(R.drawable.bar_marker)));
+                    break;
+                case "cafeteria":
                     googleMap.addMarker(new MarkerOptions()
-                .position(butterfliesAndHurricanes)
-                .title("Butterflies and Hurricanes")
+                            .position(restaurantPosition)
+                            .title(restaurant.getName())
                             .icon(BitmapDescriptorFactory.fromResource(R.drawable.cafeteria_marker)));
+                    break;
+                case "pub":
                     googleMap.addMarker(new MarkerOptions()
-                .position(theHoppyPub)
-                .title("The Hoppy Pub")
+                            .position(restaurantPosition)
+                            .title(restaurant.getName())
                             .icon(BitmapDescriptorFactory.fromResource(R.drawable.pub_marker)));
+                    break;
+                case "fast_food":
                     googleMap.addMarker(new MarkerOptions()
-                .position(bellevilleSinPatron)
-                .title("Belleville sin patron")
-                .icon(BitmapDescriptorFactory.fromResource(R.drawable.bar_marker)));
-        googleMap.addMarker(new MarkerOptions()
-                .position(aitheroploo)
-                .title("Αιθερόπλοο")
-                .icon(BitmapDescriptorFactory.fromResource(R.drawable.pub_marker)));
-        googleMap.addMarker(new MarkerOptions()
-                .position(odysseas)
-                .title("Οδυσσέας")
-                .icon(BitmapDescriptorFactory.fromResource(R.drawable.restaurant_marker)));
-        googleMap.addMarker(new MarkerOptions()
-                .position(pulp)
-                .title("Pulp")
-                .icon(BitmapDescriptorFactory.fromResource(R.drawable.bar_marker)));
-        googleMap.addMarker(new MarkerOptions()
-                .position(mcDonalds2)
-                .title("McDonald\'s")
+                            .position(restaurantPosition)
+                            .title(restaurant.getName())
                             .icon(BitmapDescriptorFactory.fromResource(R.drawable.fast_food_marker)));
+                    break;
+                case "ethnic":
                     googleMap.addMarker(new MarkerOptions()
-                .position(gianoula)
-                .title("Γιαννούλα")
-                .icon(BitmapDescriptorFactory.fromResource(R.drawable.restaurant_marker)));
-        googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(grill15, 12.0f));
+                            .position(restaurantPosition)
+                            .title(restaurant.getName())
+                            .icon(BitmapDescriptorFactory.fromResource(R.drawable.pub_marker)));
+                    break;
+            }
+        }
+
+        googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(40.6215, 22.961), 12.0f));
     }
 }

UI/AndroidApp/flavoursWithoutBorders/app/src/main/java/gr/auth/databases/flavours/base/BaseActivity.java

@@ -4,6 +4,7 @@ import android.Manifest;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
+import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
 import android.view.View;
@@ -203,7 +204,7 @@ public abstract class BaseActivity extends AppCompatActivity {
                 .withOnAccountHeaderListener(new AccountHeader.OnAccountHeaderListener() {
                     @Override
                     public boolean onProfileChanged(View view, IProfile profile, boolean current) {
-                        //if (sessionManager.isLoggedIn()) {
+                        if (sessionManager.isLoggedIn()) {
                             Intent intent = new Intent(BaseActivity.this, ProfileActivity.class);
                             Bundle extras = new Bundle();
                             extras.putInt(BUNDLE_USER_ID, sessionManager.getUserId());
@@ -211,10 +212,9 @@ public abstract class BaseActivity extends AppCompatActivity {
                             intent.setFlags(FLAG_ACTIVITY_NEW_TASK);
                             startActivity(intent);
                             return false;
-                        //TODO
-                        /*} else
-                            startLoginActivity();*/
-                        //return true;
+                        } else
+                            startLoginActivity();
+                        return true;
                     }
                 })
                 .build();
@@ -242,8 +242,8 @@ public abstract class BaseActivity extends AppCompatActivity {
                         } else if (drawerItem.equals(LOG_ID)) {
                             if (!sessionManager.isLoggedIn()) //When logged out or if user is guest
                                 startLoginActivity();
-                            /*else
-                                new LogoutTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);*/
+                            else
+                                new LogoutTask().execute();
                         }
 
                         drawer.closeDrawer();
@@ -313,4 +313,17 @@ public abstract class BaseActivity extends AppCompatActivity {
         Intent intent = new Intent(BaseActivity.this, LoginActivity.class);
         startActivity(intent);
     }
+
+    private class LogoutTask extends AsyncTask<Void, Void, Integer> {
+        protected Integer doInBackground(Void... voids) {
+            return sessionManager.logout();
+        }
+
+        protected void onPreExecute() {
+        }
+
+        protected void onPostExecute(Integer result) {
+            updateDrawer();
+        }
+    }
 }

UI/AndroidApp/flavoursWithoutBorders/app/src/main/java/gr/auth/databases/flavours/base/BaseApplication.java

@@ -21,7 +21,7 @@ public class BaseApplication extends Application {
     private OkHttpClient client;
     private SessionManager sessionManager;
 
-    private static final String SHARED_PREFS = "ThmmySharedPrefs";
+    private static final String SHARED_PREFS = "FlavoursSharedPrefs";
 
     private static float dpWidth;
 

UI/AndroidApp/flavoursWithoutBorders/app/src/main/java/gr/auth/databases/flavours/model/Restaurant.java

@@ -1,8 +1,11 @@
 package gr.auth.databases.flavours.model;
 
+import android.os.Parcel;
+import android.os.Parcelable;
+
 import androidx.annotation.Nullable;
 
-public class Restaurant {
+public class Restaurant implements Parcelable {
     public enum RestaurantType {
         CAFETERIA(0), PUB(1), BAR(2), RESTAURANT(3), FAST_FOOD(4), ETHNIC(5), UNSUPPORTED(-1);
 
@@ -56,15 +59,25 @@ public class Restaurant {
         }
     }
 
+    private final int id;
     private final String name, type, openingTime, closingTime;
+    private final double longitude, latitude;
 
-    public Restaurant(String name, String type, String openingTime, String closingTime) {
+    public Restaurant(int id, String name, String type, double longitude, double latitude,
+                      String openingTime, String closingTime) {
+        this.id = id;
         this.name = name;
         this.type = type;
+        this.longitude = longitude;
+        this.latitude = latitude;
         this.openingTime = openingTime;
         this.closingTime = closingTime;
     }
 
+    public int getId() {
+        return id;
+    }
+
     public String getName() {
         return name;
     }
@@ -73,6 +86,14 @@ public class Restaurant {
         return type;
     }
 
+    public double getLongitude() {
+        return longitude;
+    }
+
+    public double getLatitude() {
+        return latitude;
+    }
+
     public String getOpeningTime() {
         return openingTime;
     }
@@ -80,4 +101,40 @@ public class Restaurant {
     public String getClosingTime() {
         return closingTime;
     }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flags) {
+        out.writeInt(id);
+        out.writeString(name);
+        out.writeString(type);
+        out.writeDouble(longitude);
+        out.writeDouble(latitude);
+        out.writeString(openingTime);
+        out.writeString(closingTime);
+    }
+
+    public static final Parcelable.Creator<Restaurant> CREATOR = new Parcelable.Creator<Restaurant>() {
+        public Restaurant createFromParcel(Parcel in) {
+            return new Restaurant(in);
+        }
+
+        public Restaurant[] newArray(int size) {
+            return new Restaurant[size];
+        }
+    };
+
+    private Restaurant(Parcel in) {
+        id = in.readInt();
+        name = in.readString();
+        type = in.readString();
+        longitude = in.readDouble();
+        latitude = in.readDouble();
+        openingTime = in.readString();
+        closingTime = in.readString();
+    }
 }

UI/AndroidApp/flavoursWithoutBorders/app/src/main/java/gr/auth/databases/flavours/session/SessionManager.java

@@ -1,6 +1,7 @@
 package gr.auth.databases.flavours.session;
 
 import android.content.SharedPreferences;
+import android.util.Log;
 
 import com.franmontiel.persistentcookiejar.PersistentCookieJar;
 import com.franmontiel.persistentcookiejar.persistence.SharedPrefsCookiePersistor;
@@ -44,8 +45,9 @@ public class SessionManager {
     }
 
     //Generic constants
-    public static final HttpUrl indexUrl = HttpUrl.parse("https://www.thmmy.gr/smf/index.php?theme=4");
-    private static final HttpUrl loginUrl = HttpUrl.parse("https://www.thmmy.gr/smf/index.php?action=login2");
+    private static final HttpUrl loginUrl = HttpUrl.parse("http://83.212.109.171:8181/api/rest-auth/login/");
+    private static final HttpUrl signupUrl = HttpUrl.parse("http://83.212.109.171:8181/api/rest-auth/registration/");
+    private static final HttpUrl logoutUrl = HttpUrl.parse("http://83.212.109.171:8181/api/rest-auth/logout/");
 
     // Client & Cookies
     private final OkHttpClient client;
@@ -57,7 +59,6 @@ public class SessionManager {
     private static final String USERNAME = "Username";
     private static final String USER_ID = "UserID";
     private static final String USER_TYPE = "USER_TYPE";
-    private static final String LOGOUT_LINK = "LogoutLink";
     private static final String LOGGED_IN = "LoggedIn";
     private static final String LOGIN_SCREEN_AS_DEFAULT = "LoginScreenAsDefault";
 
@@ -73,63 +74,78 @@ public class SessionManager {
     public int login(String... strings) {
         //Builds the login request for each case
         Request request;
-        if (strings.length == 2) {
         clearSessionData();
 
-            String loginName = strings[0];
+        String username = strings[0];
         String password = strings[1];
 
         RequestBody formBody = new FormBody.Builder()
-                    .add("user", loginName)
-                    .add("passwrd", password)
-                    .add("cookielength", "-1") //-1 is forever
+                .add("username", username)
+                .add("password", password)
                 .build();
         request = new Request.Builder()
                 .url(loginUrl)
                 .post(formBody)
                 .build();
-        } else {
-            request = new Request.Builder()
-                    .url(loginUrl)
-                    .build();
-        }
+
 
         try {
             //Makes request & handles response
             Response response = client.newCall(request).execute();
 
-            if (validateRetrievedCookies()) {
-                setPersistentCookieSession();   //Store cookies
+            setPersistentCookieSession(loginUrl);   //Store cookies
 
             //Edit SharedPreferences, save session's data
             SharedPreferences.Editor editor = sharedPrefs.edit();
             setLoginScreenAsDefault(false);
             editor.putBoolean(LOGGED_IN, true);
-                editor.putString(USERNAME, "Username");
+            editor.putString(USERNAME, username);
             editor.putInt(USER_ID, 10);
             editor.putInt(USER_TYPE, UserType.USER.getId());
             editor.apply();
-
             return 0;
-            } else {
-                //Investigates login failure
-                /*if (error.size() > 0) { //Wrong username
-                    return WRONG_USER;
+        } catch (Exception e) {
+            return 2;
         }
-
-                if (error.size() > 0) { //Wrong password
-                    return WRONG_PASSWORD;
     }
 
-                if (error.size() > 0) { //User is banned
-                    return BANNED_USER;
-                }*/
+    public int signup(String... strings) {
+        //Builds the signup request
+        Request request;
+
+        clearSessionData();
 
-                //Other error e.g. session was reset server-side
-                clearSessionData(); //Clear invalid saved data
-                return 1;
-            }
-            //Handles exceptions
+        String email = strings[0];
+        String username = strings[1];
+        String password = strings[2];
+        String birthday = strings[3];
+
+        RequestBody formBody = new FormBody.Builder()
+                .add("email", email)
+                .add("username", username)
+                .add("password1", password)
+                .add("password2", password)
+                .build();
+        request = new Request.Builder()
+                .url(signupUrl)
+                .post(formBody)
+                .build();
+
+        try {
+            //Makes request & handles response
+            Response response = client.newCall(request).execute();
+
+            setPersistentCookieSession(signupUrl);   //Store cookies
+
+            //Edit SharedPreferences, save session's data
+            SharedPreferences.Editor editor = sharedPrefs.edit();
+            setLoginScreenAsDefault(false);
+            editor.putBoolean(LOGGED_IN, true);
+            editor.putString(USERNAME, username);
+            editor.putInt(USER_ID, 10);
+            editor.putInt(USER_TYPE, UserType.USER.getId());
+            editor.apply();
+            return 0;
         } catch (Exception e) {
             return 2;
         }
@@ -149,7 +165,7 @@ public class SessionManager {
 
     public int logout() {
         Request request = new Request.Builder()
-                .url(sharedPrefs.getString(LOGOUT_LINK, "LogoutLink"))
+                .url(logoutUrl)
                 .build();
 
         try {
@@ -177,15 +193,6 @@ public class SessionManager {
         return UserType.fromInteger(sharedPrefs.getInt(USER_TYPE, -1));
     }
 
-    public Cookie getThmmyCookie() {
-        List<Cookie> cookieList = cookieJar.loadForRequest(indexUrl);
-        for (Cookie cookie : cookieList) {
-            if (cookie.name().equals("THMMYgrC00ki3"))
-                return cookie;
-        }
-        return null;
-    }
-
     public boolean isLoggedIn() {
         return sharedPrefs.getBoolean(LOGGED_IN, false);
     }
@@ -194,18 +201,8 @@ public class SessionManager {
         return sharedPrefs.getBoolean(LOGIN_SCREEN_AS_DEFAULT, true);
     }
 
-    private boolean validateRetrievedCookies() {
-        List<Cookie> cookieList = cookieJar.loadForRequest(indexUrl);
-        for (Cookie cookie : cookieList) {
-            if (cookie.name().equals("THMMYgrC00ki3"))
-                return true;
-        }
-        return false;
-    }
-
-    // Call validateRetrievedCookies() first
-    private void setPersistentCookieSession() {
-        List<Cookie> cookieList = cookieJar.loadForRequest(indexUrl);
+    private void setPersistentCookieSession(HttpUrl forUrl) {
+        List<Cookie> cookieList = cookieJar.loadForRequest(forUrl);
         Cookie.Builder builder = new Cookie.Builder();
         builder.name(cookieList.get(1).name())
                 .value(cookieList.get(1).value())