RewardsFragment.java

package com.example.glucocare;

import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.RecyclerView;

import com.google.firebase.FirebaseApp;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.firestore.DocumentReference;
import com.google.firebase.firestore.DocumentSnapshot;
import com.google.firebase.firestore.FirebaseFirestore;
import com.google.firebase.firestore.QueryDocumentSnapshot;
import com.google.firebase.firestore.QuerySnapshot;
import com.google.firebase.firestore.SetOptions;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

/**
 * A simple {@link Fragment} subclass.
 * Use the {@link RewardsFragment#newInstance} factory method to
 * create an instance of this fragment.
 *
 */
public class RewardsFragment extends Fragment {

    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;

    private RecyclerView recyclerView;

    private int couponsEarned = 0;
    private boolean couponEarned = false;
    private LogAdapter logAdapter;

    ImageView bronzeMedalImageView;
    ImageView silverMedalImageView;
    ImageView goldMedalImageView;
    private int logsToday = 0;

    Button bronzeDiscountBtn, silverDiscountBtn, goldDiscountBtn, rewardPer500PointsBtn;

    Calendar calendar;
    int currentDay, lastDay;

    TextView bronzeText, silverText, goldText;

    TextView totalLogsText, totalLogsTodayText, scoreText, rewardPer500PointsText;

    FirebaseFirestore db;

    Long userScore;

    // Add this member variable
    private DatabaseReference userScoreRef;
    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @param param1 Parameter 1.
     * @param param2 Parameter 2.
     * @return A new instance of fragment RewardsFragment.
     */
    // TODO: Rename and change types and number of parameters
    public static RewardsFragment newInstance(String param1, String param2) {
        RewardsFragment fragment = new RewardsFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    public RewardsFragment() {
        // Required empty public constructor
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
        FirebaseApp.initializeApp(getContext());
        userScoreRef = FirebaseDatabase.getInstance().getReference().child("user_scores");
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_rewards, container, false);
        db = FirebaseFirestore.getInstance();

        // Get the currently logged-in user ID
        String currentUserId = getCurrentUserId();

        // Add the code snippet to check for a new day
        calendar = Calendar.getInstance();
        currentDay = calendar.get(Calendar.DAY_OF_MONTH);
        SharedPreferences settings = getContext().getSharedPreferences("PREFS", 0);
        lastDay = settings.getInt("day", 0);

        if (lastDay != currentDay) {
            // The app is launched on a new day, perform actions here

            // For example, you might want to reset the logsToday variable to 0
            logsToday = 0;

            // Update the lastDay value in SharedPreferences to the current day
            SharedPreferences.Editor editor = settings.edit();
            editor.putInt("day", currentDay);
            editor.apply();
        }

        // Call the method to fetch the total number of blood sugar logs for the current user
        fetchTotalBloodSugarLogs(currentUserId);
        fetchUserScoreAndUpdateUI(currentUserId);
        scoreText = rootView.findViewById(R.id.scoreText);
        totalLogsText = rootView.findViewById(R.id.totalLogsText);
        totalLogsTodayText = rootView.findViewById(R.id.totalLogsTodayText);

        bronzeMedalImageView = rootView.findViewById(R.id.bronzeMedal);
        silverMedalImageView = rootView.findViewById(R.id.silverMedal);
        goldMedalImageView = rootView.findViewById(R.id.goldMedal);

        bronzeDiscountBtn = rootView.findViewById(R.id.bronzeCouponBtn);
        silverDiscountBtn = rootView.findViewById(R.id.silverCouponBtn);
        goldDiscountBtn = rootView.findViewById(R.id.goldCouponBtn);

        rewardPer500PointsBtn = rootView.findViewById(R.id.rewardPer500PointsBtn);
        rewardPer500PointsBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                showCouponAfterMedalsReward();
            }
        });

        rewardPer500PointsText = rootView.findViewById(R.id.rewardPer500PointsText);

        bronzeDiscountBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) { showBronzeCouponReward(); }
        });
        silverDiscountBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) { showSilverCouponReward(); }
        });
        goldDiscountBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) { showGoldCouponReward(); }
        });

        bronzeText = rootView.findViewById(R.id.bronzeText);
        silverText = rootView.findViewById(R.id.silverText);
        goldText = rootView.findViewById(R.id.goldText);

        updateMedalImages();

        return rootView;
    }

    private void fetchTotalBloodSugarLogs(String currentUserId) {
        String currentDate = new SimpleDateFormat("dd-MM-yyyy", Locale.getDefault()).format(new Date());

        // Total
        db.collection("bloodSugar")
                .whereEqualTo("userId", currentUserId)
                .get()
                .addOnCompleteListener(task -> {
                    if (task.isSuccessful()) {
                        int totalLogs = 0;

                        for (QueryDocumentSnapshot document : task.getResult()) {
                            totalLogs++;
                            // Check if the log is for today
                            String logDate = document.getString("date");
                            if (logDate != null && logDate.equals(currentDate)) {
                                logsToday++;
                            }
                        }

                        totalLogsText.setText("Total logs: " + totalLogs);
                        totalLogsTodayText.setText("Total logs today: " + logsToday);
                    }
                });
    }
    private void fetchUserScoreAndUpdateUI(String currentUserId) {
        // Reference to the user's document in the "userScores" collection
        DocumentReference userScoreDocRef = db.collection("userScores").document(currentUserId);

        userScoreDocRef.get()
                .addOnCompleteListener(task -> {
                    if (task.isSuccessful()) {
                        DocumentSnapshot document = task.getResult();
                        if (document.exists()) {
                            userScore = document.getLong("score");
                            boolean isBronzeUnlocked = document.getBoolean("bronzeMedal");
                            boolean isSilverUnlocked = document.getBoolean("silverMedal");
                            boolean isGoldUnlocked = document.getBoolean("goldMedal");

                            // Update the UI with the user's score and medal states
                            scoreText.setText("Score: " + userScore);

                            if (isBronzeUnlocked) {
                                unlockBronzeMedal();
                            } else {
                                lockBronzeMedal();
                            }

                            if (isSilverUnlocked) {
                                unlockSilverMedal();
                            } else {
                                lockSilverMedal();
                            }

                            if (isGoldUnlocked) {
                                unlockGoldMedal();
                            } else {
                                lockGoldMedal();
                            }
                        } else {
                            // Handle the case when the document doesn't exist
                            updateUserScoreInFirestore(currentUserId, 0);
                        }
                    } else {
                        // Handle errors here
                        Log.e("Firestore", "Error fetching document: " + task.getException());
                    }
                });
    }

    // Method to add or update the user's score in Firestore
    private void updateUserScoreInFirestore(String userId, long initialScore) {
        // Reference to the user's document in the "userScores" collection
        DocumentReference userScoreDocRef = db.collection("userScores").document(userId);

        // Create a map with the data you want to set (e.g., score and medals)
        Map<String, Object> userData = new HashMap<>();
        userData.put("score", initialScore); // Replace "score" with the actual field name
        userData.put("bronzeMedal", userScore >= 200); // Check if the user unlocked the bronze medal
        userData.put("silverMedal", userScore >= 500); // Check if the user unlocked the silver medal
        userData.put("goldMedal", userScore >= 2000); // Check if the user unlocked the gold medal

        // Use SetOptions to specify that the document should be created if it doesn't exist
        SetOptions options = SetOptions.merge(); // Use merge to update the document if it exists
        fetchUserScoreAndUpdateUI(userId);

        userScoreDocRef.set(userData, options)
                .addOnCompleteListener(task -> {
                    if (task.isSuccessful()) {
                        Log.d("Firestore", "Document successfully added or updated.");
                    } else {
                        // Handle errors here
                        Log.e("Firestore", "Error adding or updating document: " + task.getException());
                    }
                });
    }

    // Method to get the currently logged-in user ID
    private String getCurrentUserId() {
        FirebaseAuth auth = FirebaseAuth.getInstance();
        if (auth.getCurrentUser() != null) {
            return auth.getCurrentUser().getUid();
        } else {
            // Return an empty string or handle the case when the user is not logged in
            return "";
        }
    }

    //        Medals

    private void setMedalState(String medalName, boolean unlocked) {
        SharedPreferences sharedPreferences = requireContext().getSharedPreferences("Medals", Context.MODE_PRIVATE);
        SharedPreferences.Editor editor = sharedPreferences.edit();
        editor.putBoolean(medalName, unlocked);
        editor.apply();
    }


    private void updateMedalImages() {
        if (isAdded()) {
            SharedPreferences sharedPreferences = requireContext().getSharedPreferences("Medals", Context.MODE_PRIVATE);

            boolean isBronzeUnlocked = sharedPreferences.getBoolean("bronzeMedal", false);
            boolean isSilverUnlocked = sharedPreferences.getBoolean("silverMedal", false);
            boolean isGoldUnlocked = sharedPreferences.getBoolean("goldMedal", false);

            if (!isBronzeUnlocked) {
                if (userScore != null && userScore >= 200) { // Check if the user unlocked the bronze medal
                    unlockBronzeMedal();
                    setMedalState("bronzeMedal", true); // Update medal state
                } else {
                    lockBronzeMedal();
                }
            } else {
                unlockBronzeMedal();
            }

            if (!isSilverUnlocked) {
                if (userScore != null && userScore >= 500) { // Check if the user unlocked the silver medal
                    unlockSilverMedal();
                    setMedalState("silverMedal", true); // Update medal state
                } else {
                    lockSilverMedal();
                }
            } else {
                unlockSilverMedal();
            }

            if (!isGoldUnlocked) {
                if (userScore != null && userScore >= 2000) { // Check if the user unlocked the gold medal
                    unlockGoldMedal();
                    setMedalState("goldMedal", true); // Update medal state
                } else {
                    lockGoldMedal();
                }
            } else {
                unlockGoldMedal();
            }
        }
    }

    public void showBronzeCouponReward() {
        Dialog myDialog = new Dialog(getContext());
        myDialog.setContentView(R.layout.coupon_bronze_reward);
        Button closeButton = myDialog.findViewById(R.id.closeButton);
        closeButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                myDialog.dismiss();
            }
        });
        myDialog.show();
    }

    private void unlockBronzeMedal() {
        bronzeMedalImageView.setImageResource(R.drawable.bronze_unlocked);
        bronzeText.setVisibility(View.INVISIBLE);
        bronzeDiscountBtn.setVisibility(View.VISIBLE);
    }

    private void lockBronzeMedal() {
        bronzeMedalImageView.setImageResource(R.drawable.bronze_locked);
        bronzeText.setVisibility(View.VISIBLE);
        bronzeDiscountBtn.setVisibility(View.INVISIBLE);
    }

    public void showSilverCouponReward() {
        Dialog myDialog = new Dialog(getContext());
        myDialog.setContentView(R.layout.coupon_silver_reward);
        Button closeButton = myDialog.findViewById(R.id.closeButton);
        closeButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                myDialog.dismiss();
            }
        });
        myDialog.show();
    }

    private void unlockSilverMedal() {
        silverMedalImageView.setImageResource(R.drawable.silver_unlocked);
        silverText.setVisibility(View.INVISIBLE);
        silverDiscountBtn.setVisibility(View.VISIBLE);
        bronzeDiscountBtn.setVisibility(View.INVISIBLE);
    }

    private void lockSilverMedal() {
        silverMedalImageView.setImageResource(R.drawable.silver_locked);
        silverText.setVisibility(View.VISIBLE);
        silverDiscountBtn.setVisibility(View.INVISIBLE);
    }

    public void showGoldCouponReward() {
        Dialog myDialog = new Dialog(getContext());
        myDialog.setContentView(R.layout.coupon_gold_reward);
        Button closeButton = myDialog.findViewById(R.id.closeButton);
        closeButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                myDialog.dismiss();
            }
        });
        myDialog.show();
    }

    private void unlockGoldMedal() {
        goldMedalImageView.setImageResource(R.drawable.gold_unlocked);
        goldText.setVisibility(View.INVISIBLE);
        goldDiscountBtn.setVisibility(View.VISIBLE);
        silverDiscountBtn.setVisibility(View.INVISIBLE);
        bronzeDiscountBtn.setVisibility(View.INVISIBLE);
        rewardPer500PointsText.setVisibility(View.VISIBLE);
        Long remainingPoints = 500 - (userScore % 500);

        if ((remainingPoints == 500) || (userScore >= 2500) && (isCouponEarned() == true)) {
            rewardPer500PointsText.setText("Claim your coupon!");
            rewardPer500PointsBtn.setVisibility(View.VISIBLE);
        } else {
            rewardPer500PointsText.setText("There are " + remainingPoints + " points left to get a coupon");
            rewardPer500PointsBtn.setVisibility(View.INVISIBLE);
        }
    }

    private void lockGoldMedal() {
        goldMedalImageView.setImageResource(R.drawable.gold_locked);
        goldText.setVisibility(View.VISIBLE);
        goldDiscountBtn.setVisibility(View.INVISIBLE);
        rewardPer500PointsText.setVisibility(View.INVISIBLE);
        rewardPer500PointsBtn.setVisibility(View.INVISIBLE);
    }

    private boolean isCouponEarned() {
        SharedPreferences settings = getContext().getSharedPreferences("PREFS", 0);
        return settings.getBoolean("couponEarned", false);
    }

    public void showCouponAfterMedalsReward() {
        Dialog myDialog = new Dialog(getContext());
        myDialog.setContentView(R.layout.coupon_after_medals_reward);
        Long remainingPoints = 500 - (userScore % 500);
        // Customize the coupon dialog as needed, e.g., display the €10 coupon code

        Button closeButton = myDialog.findViewById(R.id.closeButton);

        closeButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                myDialog.dismiss();
                // Update UI to hide the coupon button until the next 500 points
                rewardPer500PointsBtn.setVisibility(View.INVISIBLE);
                rewardPer500PointsText.setText("There are " + remainingPoints + " points left to get a coupon");
            }
        });

        myDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
            @Override
            public void onCancel(DialogInterface dialogInterface) {
                // Update UI to hide the coupon button until the next 500 points
                rewardPer500PointsBtn.setVisibility(View.INVISIBLE);
                rewardPer500PointsText.setText("There are " + remainingPoints + " points left to get a coupon");
            }
        });

        myDialog.show();
    }
}