niedziela wieczor

app/src/main/AndroidManifest.xml

@@ -2,8 +2,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
-    <uses-permission android:name="android.permission.INTERNET"/>
-
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
@@ -30,7 +28,8 @@
         </activity>
         <activity
             android:name=".MainActivity"
-            android:exported="true">
+            android:exported="true"
+            android:theme="@style/Theme.Material3.Light.NoActionBar">
         </activity>
     </application>
 

app/src/main/java/com/example/bsm_notatnik/Login.java

@@ -4,6 +4,7 @@ import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.Log;
@@ -20,34 +21,22 @@ import com.google.firebase.auth.AuthResult;
 import com.google.firebase.auth.FirebaseAuth;
 import com.google.firebase.auth.FirebaseUser;
 
+import java.util.Objects;
+
 public class Login extends AppCompatActivity {
 
+    private static final String SHARED_NAME_CREDENTIALS = "Credentials";
     EditText editTextEmail, editTextPassword;
     Button buttonLogin;
-    FirebaseAuth mAuth;
     ProgressBar progressBar;
     TextView textView;
 
-    // Checks if a user is already signed in
-    @Override
-    public void onStart() {
-        super.onStart();
-
-        FirebaseUser currentUser = mAuth.getCurrentUser();
-        if(currentUser != null){
-            Intent intent = new Intent(getApplicationContext(), MainActivity.class);
-            startActivity(intent);
-            finish();
-        }
-
-    }
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_login);
 
-        mAuth = FirebaseAuth.getInstance();
         editTextEmail = findViewById(R.id.username);
         editTextPassword = findViewById(R.id.password);
         buttonLogin = findViewById(R.id.btn_login);
@@ -63,43 +52,59 @@ public class Login extends AppCompatActivity {
             }
         });
 
+
+
         buttonLogin.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                progressBar.setVisibility(View.VISIBLE);
+                //progressBar.setVisibility(View.VISIBLE);
                 String email, password;
                 email = String.valueOf(editTextEmail.getText());
                 password = String.valueOf(editTextPassword.getText());
 
-                if(TextUtils.isEmpty(email)){
+                if (TextUtils.isEmpty(email)){
                     Toast.makeText(Login.this, "Enter email!", Toast.LENGTH_SHORT).show();
                     return;
                 }
-                if(TextUtils.isEmpty(password)){
+                if (TextUtils.isEmpty(password)){
                     Toast.makeText(Login.this, "Enter password!", Toast.LENGTH_SHORT).show();
                     return;
                 }
+                if (!checkIfUserExists(email)){
+                    Toast.makeText(Login.this, "No such username in database!", Toast.LENGTH_SHORT).show();
+                    editTextPassword.setText("");
+                    return;
+                }
+
+                login(email, password);
+                //progressBar.setVisibility(View.GONE);
+            }
+        });
+    }
 
 
-                mAuth.signInWithEmailAndPassword(email, password)
+    private boolean checkIfUserExists(String email){
-                        .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
+        SharedPreferences sharedPreferences = getSharedPreferences(SHARED_NAME_CREDENTIALS, MODE_PRIVATE);
-                            @Override
+        return sharedPreferences.contains("user_" + email);
-                            public void onComplete(@NonNull Task<AuthResult> task) {
+    }
-                                progressBar.setVisibility(View.GONE);
+
-                                if (task.isSuccessful()) {
+    private void login(String email, String password){
+        SharedPreferences sharedPreferences = getSharedPreferences(SHARED_NAME_CREDENTIALS, MODE_PRIVATE);
+        String passwordFromData = sharedPreferences.getString("user_" + email, "err");
+
+        if (password.equals(passwordFromData)){
             Toast.makeText(getApplicationContext(), "Login Successful", Toast.LENGTH_SHORT).show();
+
             Intent intent = new Intent(getApplicationContext(), MainActivity.class);
+            intent.putExtra("CURRENT_USER_EMAIL", email);
             startActivity(intent);
             finish();
-                                } else {
+
-                                    Toast.makeText(Login.this, "Authentication failed.",
+        }else {
-                                            Toast.LENGTH_SHORT).show();
+            Toast.makeText(getApplicationContext(), "Wrong credentials!", Toast.LENGTH_SHORT).show();
+            editTextPassword.setText("");
         }
     }
-                        });
 
 
-            }
-        });
-    }
 }

app/src/main/java/com/example/bsm_notatnik/MainActivity.java

@@ -1,51 +1,106 @@
 package com.example.bsm_notatnik;
-
+import android.content.DialogInterface;
-import androidx.appcompat.app.AppCompatActivity;
-
 import android.content.Intent;
 import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
 import android.view.View;
 import android.widget.Button;
+import android.widget.EditText;
 import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
 
-import com.google.firebase.auth.FirebaseAuth;
-import com.google.firebase.auth.FirebaseUser;
 
 public class MainActivity extends AppCompatActivity {
 
-    FirebaseAuth auth;
+    Button buttonLogout, buttonChangePassword;
-    Button logout_btn;
+
-    TextView textView;
-    //FirebaseUser user;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        //auth = FirebaseAuth.getInstance();
+        Intent intent = getIntent();
-        logout_btn = findViewById(R.id.logout_btn);
+        String currentu_username = intent.getStringExtra("CURRENT_USER_EMAIL");
-        textView = findViewById(R.id.user_details);
 
-        /*
+        buttonLogout = findViewById(R.id.btn_logout);
-        user = auth.getCurrentUser();
+        buttonChangePassword = findViewById(R.id.btn_change_password);
 
-        if (user == null){
-            Intent intent = new Intent(getApplicationContext(), Login.class);
-            startActivity(intent);
-            finish();
-        }else {
-            textView.setText(user.getEmail());
-        }*/
 
-        logout_btn.setOnClickListener(new View.OnClickListener() {
+        buttonLogout.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                //FirebaseAuth.getInstance().signOut();
+                logOut();
+            }
+        });
+
+
+        buttonChangePassword.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                showPasswordChangeDialog();
+            }
+        });
+
+    }
+
+    private void logOut(){
+        Toast.makeText(getApplicationContext(), "Logout Successful!", Toast.LENGTH_SHORT).show();
+
         Intent intent = new Intent(getApplicationContext(), Login.class);
         startActivity(intent);
         finish();
     }
-        });
+
+    private void showPasswordChangeDialog(){
+// Inflate the dialog layout
+        LayoutInflater inflater = getLayoutInflater();
+        View dialogView = inflater.inflate(R.layout.password_change_dialog, null);
+
+        // Create the AlertDialog builder
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setView(dialogView);
+        builder.setTitle("Change Password");
+
+        // Set up the positive (OK) button
+        builder.setPositiveButton("Change", new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialogInterface, int i) {
+                // Handle password change logic here
+                EditText editTextNewPassword = dialogView.findViewById(R.id.editTextNewPassword);
+                EditText editTextConfirmPassword = dialogView.findViewById(R.id.editTextConfirmPassword);
+
+                String newPassword = editTextNewPassword.getText().toString();
+                String confirmPassword = editTextConfirmPassword.getText().toString();
+
+                // Perform password change validation and logic
+                if (newPassword.equals(confirmPassword)) {
+                    // Passwords match, implement your password change logic here
+                } else {
+                    // Passwords do not match, show an error message
+                    // You can use a Toast or any other method to display the message
                 }
+            }
+        });
+
+        // Set up the negative (Cancel) button
+        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialogInterface, int i) {
+                // User canceled the password change
+            }
+        });
+
+        // Create and show the AlertDialog
+        AlertDialog alertDialog = builder.create();
+        alertDialog.show();
+    }
+
 }
+

app/src/main/java/com/example/bsm_notatnik/Register.java

@@ -2,7 +2,9 @@ package com.example.bsm_notatnik;
 
 import androidx.appcompat.app.AppCompatActivity;
 
+import android.content.Context;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.view.View;
@@ -15,13 +17,11 @@ import android.widget.Toast;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import com.google.firebase.auth.FirebaseAuth;
-import com.google.firebase.auth.FirebaseUser;
-
-
 
 public class Register extends AppCompatActivity {
 
+    private static final String SHARED_NAME_CREDENTIALS = "Credentials";
+
     EditText editTextEmail, editTextPassword;
     Button buttonReg;
     ProgressBar progressBar;
@@ -56,42 +56,76 @@ public class Register extends AppCompatActivity {
         buttonReg.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                progressBar.setVisibility(View.VISIBLE);
+                //progressBar.setVisibility(View.VISIBLE);
                 String email, password;
                 email = String.valueOf(editTextEmail.getText());
                 password = String.valueOf(editTextPassword.getText());
 
-                if(TextUtils.isEmpty(email)){
+                //checks if email field is not empty
+                if (TextUtils.isEmpty(email)){
                     Toast.makeText(Register.this, "Enter email!", Toast.LENGTH_SHORT).show();
                     return;
                 }
-                if(TextUtils.isEmpty(password)){
+                //checks if password field is not empty
+                if (TextUtils.isEmpty(password)){
                     Toast.makeText(Register.this, "Enter password!", Toast.LENGTH_SHORT).show();
                     return;
                 }
+                //checks if given username is already registered in database
+                if (checkIfUserExists(email)){
+                    editTextEmail.setText("");
+                    editTextPassword.setText("");
+                    Toast.makeText(Register.this, "Account with this username already exists!", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+                //checks if email has correct format
+                if (!validateEmail(email)){
+                    editTextPassword.setText("");
+                    Toast.makeText(Register.this, "Email format not correct!", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+                //checks password wymagania
+                if (!validatePassword(password)){
+                    Toast.makeText(Register.this, "Password to weak!", Toast.LENGTH_SHORT).show();
+                    return;
+                }
 
-                // TUTAJ ROBIE USERA
+                saveNewUser(email, password);
-
-
-
-
-
-
                 Toast.makeText(Register.this, "Konto utworzone z email: " + email + " oraz hasłem: " + password, Toast.LENGTH_SHORT).show();
-
+                editTextEmail.setText("");
-
+                editTextPassword.setText("");
-
-
             }
         });
     }
 
 
-    private boolean validateEmail(){
+    private void saveNewUser(String email, String password){
-        return true;
+        SharedPreferences sharedPreferences = getSharedPreferences(SHARED_NAME_CREDENTIALS, MODE_PRIVATE);
+        SharedPreferences.Editor editor = sharedPreferences.edit();
+        editor.putString("user_" + email, password);
+        editor.apply();
     }
 
-    private boolean validatePassword(){
+    private boolean checkIfUserExists(String email){
-        return true;
+        SharedPreferences sharedPreferences = getSharedPreferences(SHARED_NAME_CREDENTIALS, MODE_PRIVATE);
+        return sharedPreferences.contains("user_" + email);
     }
+
+    private boolean validateEmail(String email){
+        final String EMAIL_PATTERN = "^[a-zA-Z0-9_+&*-]+(?:\\.[a-zA-Z0-9_+&*-]+)*@(?:[a-zA-Z0-9-]+\\.)+[a-zA-Z]{2,7}$";
+        Pattern pattern = Pattern.compile(EMAIL_PATTERN);
+        Matcher matcher = pattern.matcher(email);
+
+        return matcher.matches();
+    }
+
+    private boolean validatePassword(String password){
+        final String PASSWORD_PATTERN = "^.{6,}$";
+        Pattern pattern = Pattern.compile(PASSWORD_PATTERN);
+        Matcher matcher = pattern.matcher(password);
+
+        return matcher.matches();
+    }
+
+
 }

app/src/main/res/drawable/rectangular_button_background.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/cardview_dark_background" />
+    <corners android:radius="8dp" />
+</shape>

app/src/main/res/layout/activity_main.xml

@@ -5,21 +5,45 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
-    android:gravity="center"
     tools:context=".MainActivity">
 
-    <TextView
+
-        android:id="@+id/user_details"
+    <LinearLayout
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:text="Hello World!"
+        android:orientation="horizontal"
-     />
+        android:padding="5dp">
 
         <Button
-        android:id="@+id/logout_btn"
+            android:id="@+id/btn_logout"
-        android:layout_width="wrap_content"
+            android:layout_width="0dp"
-        android:layout_height="wrap_content"
+            android:layout_height="match_parent"
-        android:text="@string/logout_btn_txt"
+            android:layout_weight="1"
-        />
+            android:layout_marginEnd="8dp"
+            android:padding="5dp"
+            android:background="@drawable/rectangular_button_background"
+            android:text="Log Out" />
+
+        <Button
+            android:id="@+id/btn_change_password"
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:layout_marginEnd="8dp"
+            android:padding="5dp"
+            android:background="@drawable/rectangular_button_background"
+            android:text="Change Password" />
+
+        <Button
+            android:id="@+id/btn_add_note"
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:padding="5dp"
+            android:background="@drawable/rectangular_button_background"
+            android:text="Add Note" />
+
+    </LinearLayout>
+
 
 </LinearLayout>

app/src/main/res/layout/password_change_dialog.xml

@@ -0,0 +1,28 @@
+<!-- password_change_dialog.xml -->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="16dp">
+
+    <EditText
+        android:id="@+id/editTextNewPassword"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="Enter New Password"
+        android:inputType="textPassword"/>
+
+    <EditText
+        android:id="@+id/editTextConfirmPassword"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="Confirm New Password"
+        android:inputType="textPassword"/>
+
+    <Button
+        android:id="@+id/btnChangePassword"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Change Password"/>
+
+</LinearLayout>

app/src/main/res/values-night/themes.xml

@@ -1,6 +1,6 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Base.Theme.BSMnotatnik" parent="Theme.Material3.DayNight.NoActionBar">
+    <style name="Base.Theme.BSMnotatnik" parent="Theme.AppCompat.DayNight.NoActionBar">
         <!-- Customize your dark theme here. -->
         <!-- <item name="colorPrimary">@color/my_dark_primary</item> -->
     </style>

app/src/main/res/values/themes.xml

@@ -1,9 +1,7 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Base.Theme.BSMnotatnik" parent="Theme.Material3.DayNight.NoActionBar">
+    <style name="Base.Theme.BSMnotatnik" parent="Theme.AppCompat.Light.NoActionBar">
-        <!-- Customize your light theme here. -->
+
-        <!-- <item name="colorPrimary">@color/my_light_primary</item> -->
     </style>
 
-    <style name="Theme.BSMnotatnik" parent="Base.Theme.BSMnotatnik" />
 </resources>