working on network and UI

2024-10-29 03:28:26 +03:00 · 2024-10-29 03:28:26 +03:00 · a0d96da9e4
parent 3d4f86085e
commit a0d96da9e4
15 changed files with 442 additions and 102 deletions
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@ -50,13 +50,16 @@ dependencies {
    implementation(libs.androidx.activity)
    implementation(libs.androidx.legacy.support.v4)
    implementation(libs.androidx.fragment)
+    implementation(libs.androidx.material3.android)
    testImplementation(libs.junit)
    implementation(libs.volley)
    androidTestImplementation(libs.androidx.junit)
    implementation(libs.zxing.android.embedded)
    implementation("com.google.zxing:core:3.4.1")
    androidTestImplementation(libs.androidx.espresso.core)
-
+    implementation("com.google.android.material:material:1.3.0-alpha03")
+    implementation(libs.androidx.security.crypto)
+    implementation(libs.okhttp)
    // Barcode scanning API
    implementation (libs.barcode.scanning)

--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -48,6 +48,14 @@
                android:name=".activities.FindBarcodelessAbstractProduct"
                android:exported="false"
                android:theme="@style/Theme.BarcodeScannerForEmployees"/>
+        <activity
+                android:name=".activities.MainActivity"
+                android:exported="false"
+                android:theme="@style/Theme.BarcodeScannerForEmployees"/>
+        <activity
+                android:name=".activities.LoginActivity"
+                android:exported="false"
+                android:theme="@style/Theme.BarcodeScannerForEmployees"/>
        <activity
                android:name=".activities.FullscreenActivity"
                android:configChanges="orientation|keyboardHidden|screenSize"
@ -70,7 +78,7 @@
        </provider>

        <activity
-                android:name=".activities.MainActivity"
+                android:name=".activities.NavigatorActivity"
                android:exported="true"
                android:theme="@style/Theme.BarcodeScannerForEmployees">
            <intent-filter>
--- a/app/src/main/java/org/foxarmy/barcodescannerforemployees/Net.kt
+++ b/app/src/main/java/org/foxarmy/barcodescannerforemployees/Net.kt
@ -0,0 +1,127 @@
+package org.foxarmy.barcodescannerforemployees
+
+import android.util.Log
+import okhttp3.*
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.MediaType.Companion.toMediaTypeOrNull
+import okhttp3.RequestBody.Companion.asRequestBody
+import org.foxarmy.barcodescannerforemployees.dataclasses.AbstractProduct
+import java.io.File
+import kotlin.concurrent.thread
+
+class Net {
+
+    fun requestProductFromOnlineDB(barcode: String): String {
+        var response = ""
+        thread {
+            val url = "https://ean-online.ru/match.php"
+
+            val client = OkHttpClient()
+
+            val formBody = FormBody.Builder()
+            formBody.add("barcode", barcode)
+            val body = formBody.build()
+            val request = Request.Builder()
+                .url(url)
+                .post(body)
+                .addHeader("referer", "https://ean-online.ru")
+                .build()
+
+            response = client.newCall(request).execute().body!!.string()
+        }.join()
+
+        return if (response == "") {
+            "Not found 404"
+        } else {
+            response
+        }
+    }
+
+    fun registerAccount(server: String, username: String, password: String): String {
+        var token = ""
+        lateinit var response: Response
+        thread {
+            val client = OkHttpClient()
+
+            val formBody = FormBody.Builder()
+            formBody.add("username", username)
+            formBody.add("password", password)
+            val body = formBody.build()
+
+            val request = Request.Builder()
+                .url("https://$server/api/user/register")
+                .post(body)
+                .addHeader("content-type", "application/x-www-form-urlencoded")
+                .build()
+
+            response = client.newCall(request).execute()
+        }.join()
+
+        return when (response.code) {
+            200 -> {
+                login(server, username, password)
+            }
+            400 -> {
+                "Such username exists"
+            }
+            else -> {
+                "Unknown error"
+            }
+        }
+    }
+
+    fun login(server: String, username: String, password: String): String {
+        lateinit var response: Response
+        thread {
+            val client = OkHttpClient()
+
+            val formBody = FormBody.Builder()
+            formBody.add("username", username)
+            formBody.add("password", password)
+            val body = formBody.build()
+
+            val requestLogin = Request.Builder()
+                .url("https://$server/api/user/login")
+                .post(body)
+                .addHeader("content-type", "application/x-www-form-urlencoded")
+                .build()
+            response = client.newCall(requestLogin).execute()
+        }.join()
+
+        return response.body!!.string()
+    }
+
+    fun uploadAbstractProduct(server: String, groupId: Int, abstractProduct: AbstractProduct, imageFile: File, token: String): String {
+        lateinit var response: Response
+
+        thread {
+            val client = OkHttpClient()
+
+            val body = MultipartBody.Builder()
+            body.setType("multipart/form-data".toMediaType())
+            body.addFormDataPart("file", imageFile.name, imageFile.asRequestBody("image/png".toMediaTypeOrNull()))
+            body.addFormDataPart("groupId", groupId.toString())
+            body.addFormDataPart("localId", abstractProduct.id.toString())
+            body.addFormDataPart("barcode", abstractProduct.barcode)
+            body.addFormDataPart("name", abstractProduct.name)
+            body.addFormDataPart("net_weight", abstractProduct.netWeight.toString())
+            body.addFormDataPart("image_filename", abstractProduct.imageHash)
+            body.addFormDataPart("category", abstractProduct.category.toString())
+            body.addFormDataPart("unit", abstractProduct.unit.toString())
+
+            val requestBody = body.build()
+
+            val request = Request.Builder()
+                .url("https://$server/api/abstractproduct/create")
+                .post(requestBody)
+                .addHeader("Authorization", "Bearer $token")
+                .build()
+
+            response = client.newCall(request).execute()
+        }.join()
+
+        val responseText = response.body!!.string()
+
+        return responseText
+    }
+}
--- a/app/src/main/java/org/foxarmy/barcodescannerforemployees/Requester.kt
+++ b/app/src/main/java/org/foxarmy/barcodescannerforemployees/Requester.kt
@ -1,40 +0,0 @@
-package org.foxarmy.barcodescannerforemployees
-
-import android.content.Context
-import android.widget.Toast
-import com.android.volley.toolbox.StringRequest
-import com.android.volley.toolbox.Volley
-
-class Requester constructor(var siteName: String, var endpoint: String) {
-    var response = ""
-
-    fun request(context: Context, barcode: String) {
-        val url = "${siteName}/${endpoint}"
-
-        val volleyQueue = Volley.newRequestQueue(context)
-        val stringRequest = object: StringRequest(
-            Method.POST, url, { resp ->
-            run {
-                response =
-                if (resp == "") {
-                    "Not found 404"
-                } else {
-                    resp
-                }
-            }
-        },
-            {
-                Toast.makeText(context, "Cannot make request", Toast.LENGTH_LONG).show()
-            }
-        ) {
-            override fun getHeaders(): Map<String, String> {
-                return mapOf("referer" to "$siteName/")
-            }
-
-            public override fun getParams(): MutableMap<String, String> {
-                return mutableMapOf("barcode" to barcode)
-            }
-        }
-        volleyQueue.add(stringRequest)
-    }
-}
--- a/app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/AddAbstractProductActivity.kt
+++ b/app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/AddAbstractProductActivity.kt
@ -14,15 +14,19 @@ import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.content.ContextCompat
 import androidx.core.widget.addTextChangedListener
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.MasterKeys
 import com.journeyapps.barcodescanner.ScanContract
 import com.journeyapps.barcodescanner.ScanIntentResult
 import com.journeyapps.barcodescanner.ScanOptions
+import okhttp3.internal.http.hasBody
 import org.foxarmy.barcodescannerforemployees.*
 import org.foxarmy.barcodescannerforemployees.dataclasses.AbstractProduct
 import java.io.File
 import java.nio.file.Files
 import java.nio.file.StandardCopyOption
 import kotlin.concurrent.thread
+import kotlin.math.abs

 class AddAbstractProductActivity : AppCompatActivity() {
    private lateinit var imageView: ImageView
@ -147,7 +151,21 @@ class AddAbstractProductActivity : AppCompatActivity() {
                    arrayOf(abstractProduct!!.id.toString())
                )
            } else if (action == "new" || action == "new_from_barcode"){
-                db.insert(AbstractProductContract.AbstractProductEntry.TABLE_NAME, null, values)
+                val id = db.insert(AbstractProductContract.AbstractProductEntry.TABLE_NAME, null, values)
+                val n = Net()
+                val abstractProduct = AbstractProduct(id.toInt(), barcode, productName, netWeight.toString().toDouble(), pictureFile.nameWithoutExtension, categorySpinner.selectedItemPosition, unitTypeSpinner.selectedItemPosition)
+                val masterKeyAlias = MasterKeys.getOrCreate(MasterKeys.AES256_GCM_SPEC)
+
+                val sharedPreferences = EncryptedSharedPreferences.create(
+                    // passing a file name to share a preferences
+                    "sensitive",
+                    masterKeyAlias,
+                    applicationContext,
+                    EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+                    EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+                )
+                val token = sharedPreferences.getString("token", "")
+                val response = n.uploadAbstractProduct("bsfe.foxarmy.org", 1, abstractProduct, File(pictureFile.absolutePath), token!!);
            }

            finish()
@ -165,8 +183,10 @@ class AddAbstractProductActivity : AppCompatActivity() {

    fun performRequest(barcode: String) {
        barcodeText.setText(this.barcode)
-        val requester = Requester("https://ean-online.ru", "match.php")
-        requester.request(this, barcode)
+        val net = Net();
+        val result = net.requestProductFromOnlineDB(barcode)
+        Log.d("QWERTYUIOP", "Result of request: $result")
+
        var abstractProduct: AbstractProduct

        if (DBStorageController(this).findAbstractProductByBarcode(
@ -194,10 +214,7 @@ class AddAbstractProductActivity : AppCompatActivity() {
        }

        thread {
-            // Я сам в ахуях какой это костыль, пока хз как фиксить, потом придумаю :))
-            while (requester.response == "") {
-            }
-            if (requester.response == "Not found 404") {
+            if (result == "Not found 404") {
                runOnUiThread {
                    Toast.makeText(this, getString(R.string.no_product_in_online_database), Toast.LENGTH_LONG)
                        .show()
@ -207,8 +224,7 @@ class AddAbstractProductActivity : AppCompatActivity() {
                return@thread
            }

-            abstractProduct = Parser().parse(requester.response)
-            requester.response = ""
+            abstractProduct = Parser().parse(result)
            runOnUiThread {
                productNameText.text = abstractProduct.name
                netWeightText.text = abstractProduct.netWeight.toString()
--- a/app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/LoginActivity.kt
+++ b/app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/LoginActivity.kt
@ -0,0 +1,76 @@
+package org.foxarmy.barcodescannerforemployees.activities
+
+import android.content.Intent
+import android.os.Bundle
+import android.widget.Toast
+import androidx.appcompat.app.AppCompatActivity
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.MasterKeys
+import org.foxarmy.barcodescannerforemployees.Net
+import org.foxarmy.barcodescannerforemployees.R
+import org.foxarmy.barcodescannerforemployees.databinding.ActivityLoginBinding
+
+class LoginActivity : AppCompatActivity() {
+
+    private lateinit var binding: ActivityLoginBinding;
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        binding = ActivityLoginBinding.inflate(layoutInflater);
+        setContentView(binding.root)
+
+        val masterKeyAlias = MasterKeys.getOrCreate(MasterKeys.AES256_GCM_SPEC)
+
+        val sharedPreferences = EncryptedSharedPreferences.create(
+            // passing a file name to share a preferences
+            "sensitive",
+            masterKeyAlias,
+            applicationContext,
+            EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+            EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+        )
+
+        binding.loginButton.setOnClickListener {
+            val server = binding.serverTextEdit.text.toString()
+            val username = binding.usernameTextEdit.text.toString()
+            val password = binding.passwordTextEdit.text.toString()
+
+            val n = Net()
+
+            val response = n.login(server, username, password)
+
+            if (response == "Wrong password") {
+                Toast.makeText(this, getString(R.string.wrong_password), Toast.LENGTH_SHORT).show()
+            } else {
+                sharedPreferences.edit().putString("token", response).apply()
+                val intent = Intent(this, MainActivity::class.java)
+                startActivity(intent)
+                finish()
+            }
+        }
+
+        binding.registerButton.setOnClickListener {
+            val server = binding.serverTextEdit.text.toString()
+            val username = binding.usernameTextEdit.text.toString()
+            val password = binding.passwordTextEdit.text.toString()
+
+            val n = Net()
+
+            val response = n.registerAccount(server, username, password);
+
+            if (response == "Such username exists") {
+                Toast.makeText(this, getString(R.string.username_already_exists), Toast.LENGTH_SHORT).show();
+            } else {
+                sharedPreferences.edit().putString("token", response).apply()
+                val intent = Intent(this, MainActivity::class.java)
+                startActivity(intent)
+                finish()
+            }
+
+        }
+
+
+    }
+
+}
--- a/app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/MainActivity.kt
+++ b/app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/MainActivity.kt
@ -69,6 +69,7 @@ class MainActivity : AppCompatActivity() {
                    extras.putParcelable("product", null)
                    addProductIntent.putExtras(extras)
                    ContextCompat.startActivity(this, addProductIntent, extras)
+
                }
            }
        }
--- a/app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/NavigatorActivity.kt
+++ b/app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/NavigatorActivity.kt
@ -0,0 +1,38 @@
+package org.foxarmy.barcodescannerforemployees.activities
+
+import android.app.Activity
+import android.content.Intent
+import android.os.Bundle
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.MasterKeys
+
+class NavigatorActivity : Activity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        var intent = Intent(this, LoginActivity::class.java)
+
+        if (isAuthenticated()) {
+            intent = Intent(this, MainActivity::class.java);
+        }
+
+        startActivity(intent);
+        finish();
+    }
+
+    fun isAuthenticated(): Boolean {
+        val masterKeyAlias = MasterKeys.getOrCreate(MasterKeys.AES256_GCM_SPEC)
+
+        val sharedPreferences = EncryptedSharedPreferences.create(
+            // passing a file name to share a preferences
+            "sensitive",
+            masterKeyAlias,
+            applicationContext,
+            EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+            EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+        )
+
+        val jwt = sharedPreferences.getString("token", "")
+        return jwt != ""
+    }
+}
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                                                   xmlns:app="http://schemas.android.com/apk/res-auto"
+                                                   xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
+                                                   android:layout_height="match_parent">
+
+    <Button
+            android:text="@string/register"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" android:id="@+id/registerButton"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/loginButton" app:layout_constraintHorizontal_bias="0.15"
+            app:layout_constraintBottom_toTopOf="@+id/offlineButton" android:layout_marginBottom="64dp"/>
+    <Button
+            android:text="@string/login"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" android:id="@+id/loginButton"
+            app:layout_constraintStart_toEndOf="@+id/registerButton" app:layout_constraintEnd_toEndOf="parent"
+            android:layout_marginStart="2dp"
+            app:layout_constraintHorizontal_bias="0.1" app:layout_constraintBottom_toTopOf="@+id/offlineButton"
+            android:layout_marginBottom="64dp"/>
+    <Button
+            android:text="@string/offline"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" android:id="@+id/offlineButton"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent" app:layout_constraintBottom_toBottomOf="parent"
+            android:layout_marginBottom="300dp"/>
+    <EditText
+            android:layout_width="wrap_content"
+            android:layout_height="50dp"
+            android:inputType="text"
+            android:ems="10"
+            android:id="@+id/usernameTextEdit"
+            app:layout_constraintStart_toStartOf="parent" app:layout_constraintEnd_toEndOf="parent"
+            android:hint="@string/username" app:layout_constraintBottom_toTopOf="@+id/passwordTextEdit"
+            android:layout_marginBottom="16dp"/>
+    <EditText
+            android:layout_width="wrap_content"
+            android:layout_height="50dp"
+            android:inputType="textPassword"
+            android:ems="10"
+            android:id="@+id/passwordTextEdit"
+            android:hint="@string/password" app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent" app:layout_constraintBottom_toTopOf="@+id/registerButton"
+            android:layout_marginBottom="24dp"/>
+    <EditText
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:inputType="text"
+            android:ems="10"
+            android:id="@+id/serverTextEdit"
+            app:layout_constraintStart_toStartOf="parent" app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintBottom_toTopOf="@+id/usernameTextEdit" android:layout_marginBottom="16dp"
+            android:hint="@string/server" android:text="bsfe.foxarmy.org"/>
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@ -1,61 +1,74 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.coordinatorlayout.widget.CoordinatorLayout
+<androidx.drawerlayout.widget.DrawerLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
-        android:fitsSystemWindows="true"
-        tools:context=".activities.MainActivity">
+        tools:context=".activities.MainActivity"
+        android:fitsSystemWindows="true">

-    <androidx.constraintlayout.widget.ConstraintLayout
+    <FrameLayout
            android:layout_width="match_parent"
-            android:layout_height="match_parent" android:id="@+id/storageLayout">
+            android:layout_height="match_parent">

-    </androidx.constraintlayout.widget.ConstraintLayout>
-    <com.google.android.material.appbar.AppBarLayout
-            android:layout_height="wrap_content"
-            android:layout_width="match_parent"
-            android:fitsSystemWindows="true"
-    >
-
-        <com.google.android.material.appbar.MaterialToolbar
-                android:id="@+id/toolbar"
+        <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
-                android:layout_height="?attr/actionBarSize"/>
+                android:layout_height="match_parent" android:id="@+id/storageLayout">

-        <com.google.android.material.tabs.TabLayout
-                android:id="@+id/tab_tablayout"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                app:tabIndicatorColor="#FFF"
-                app:tabIndicatorHeight="3dp"
-                app:tabMode="fixed" />
+            <com.google.android.material.appbar.AppBarLayout
+                    android:layout_height="wrap_content"
+                    android:layout_width="match_parent"
+                    android:fitsSystemWindows="true"
+                    android:id="@+id/appBarLayout">

-    </com.google.android.material.appbar.AppBarLayout>
+                <com.google.android.material.appbar.MaterialToolbar
+                        android:id="@+id/toolbar"
+                        android:layout_width="match_parent"
+                        android:layout_height="?attr/actionBarSize"/>

-<!--    <include layout="@layout/content_storage"/>-->
-    <androidx.viewpager.widget.ViewPager
-            android:id="@+id/tab_viewpager"
-            android:layout_width="match_parent"
+                <com.google.android.material.tabs.TabLayout
+                        android:id="@+id/tab_tablayout"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        app:tabIndicatorColor="#FFF"
+                        app:tabIndicatorHeight="3dp"
+                        app:tabMode="fixed"/>
+
+            </com.google.android.material.appbar.AppBarLayout>
+            <androidx.viewpager.widget.ViewPager
+                    android:id="@+id/tab_viewpager"
+                    android:layout_width="0dp"
+                    android:layout_height="777dp"
+                    app:layout_behavior="@string/appbar_scrolling_view_behavior" android:layout_gravity="bottom"
+                    android:layout_marginTop="2dp"
+                    app:layout_constraintTop_toBottomOf="@+id/appBarLayout"
+                    app:layout_constraintStart_toStartOf="parent" android:layout_marginStart="6dp"
+                    app:layout_constraintEnd_toEndOf="parent" android:layout_marginEnd="6dp"/>
+            <com.google.android.material.floatingactionbutton.FloatingActionButton
+                    android:id="@+id/new_element_fab"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="bottom|end"
+                    app:srcCompat="@android:drawable/ic_input_add"
+                    app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent"
+                    android:layout_marginEnd="16dp" android:layout_marginBottom="16dp"/>
+            <com.google.android.material.floatingactionbutton.FloatingActionButton
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:clickable="true" app:srcCompat="@android:drawable/ic_menu_my_calendar"
+                    android:id="@+id/expiryCalendarFab" android:layout_gravity="bottom|end"
+                    app:layout_constraintBottom_toTopOf="@+id/new_element_fab" android:layout_marginBottom="16dp"
+                    app:layout_constraintEnd_toEndOf="parent" android:layout_marginEnd="16dp"/>
+        </androidx.constraintlayout.widget.ConstraintLayout>
+    </FrameLayout>
+
+    <!--    <include layout="@layout/content_storage"/>-->
+
+    <com.google.android.material.navigation.NavigationView
+            android:layout_width="wrap_content"
            android:layout_height="match_parent"
-            android:layout_marginTop="5dp"
-            app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+            android:layout_gravity="start"
+            app:menu="@menu/drawer_menu" />

-    <com.google.android.material.floatingactionbutton.FloatingActionButton
-            android:id="@+id/new_element_fab"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="bottom|end"
-            android:layout_marginEnd="@dimen/fab_margin"
-            android:layout_marginBottom="16dp"
-            app:srcCompat="@android:drawable/ic_input_add"/>
-    <com.google.android.material.floatingactionbutton.FloatingActionButton
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:clickable="true" app:srcCompat="@android:drawable/ic_menu_my_calendar"
-            android:id="@+id/expiryCalendarFab" android:layout_gravity="bottom|end"
-            tools:layout_editor_absoluteY="742dp" tools:layout_editor_absoluteX="337dp"
-            android:layout_marginBottom="84dp" android:layout_marginRight="16dp"/>
-
-</androidx.coordinatorlayout.widget.CoordinatorLayout>
+</androidx.drawerlayout.widget.DrawerLayout>
--- a/app/src/main/res/menu/drawer_menu.xml
+++ b/app/src/main/res/menu/drawer_menu.xml
@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:tools="http://schemas.android.com/tools">
+
+    <item
+            android:id="@+id/nav_account"
+            android:title="@string/my_account" />
+
+    <item
+            android:id="@+id/nav_settings"
+            android:title="@string/settings" />
+
+    <item
+            android:id="@+id/nav_logout"
+            android:title="@string/my_groups" />
+</menu>
--- a/app/src/main/res/menu/menu_main.xml
+++ b/app/src/main/res/menu/menu_main.xml
@ -3,7 +3,7 @@
      xmlns:tools="http://schemas.android.com/tools"
      tools:context="org.foxarmy.barcodescannerforemployees.activities.MainActivity">
    <item android:id="@+id/action_settings"
-          android:title="@string/action_settings"
+          android:title="@string/settings"
          android:orderInCategory="100"
          app:showAsAction="never"/>
    <item android:id="@+id/action_delete" android:title="@string/delete_menu"/>
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
    <string name="app_name">СканнерШтрихкодовДляРаботников</string>
-    <string name="action_settings">Настройки</string>
+    <string name="settings">Настройки</string>
    <string name="first_fragment_label">Добавить продукт</string>
    <string name="second_fragment_label">Продукты</string>
    <string name="scan_label">Сканировать</string>
@ -87,6 +87,16 @@
        ошибка сканирования или введите данные вручную
    </string>
    <string name="abstract_product_request">Пожалуйста, отсканируйте штрихкод, чтобы добавить продукт</string>
-    <string name="no_barcode">No barcode present</string>
-    <string name="no_barcode_button">No barcode</string>
+    <string name="no_barcode">Нет штрихкода</string>
+    <string name="no_barcode_button">Без штрихкода</string>
+    <string name="register">Зарегистрироваться</string>
+    <string name="login">Войти</string>
+    <string name="offline">Оффлайн</string>
+    <string name="username">Имя пользователя</string>
+    <string name="password">Пароль</string>
+    <string name="username_already_exists">Имя пользователя занято</string>
+    <string name="wrong_password">Неправильный пароль</string>
+    <string name="server">Сервер</string>
+    <string name="my_account">Мой аккаунт</string>
+    <string name="my_groups">Мои группы</string>
 </resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -1,6 +1,6 @@
 <resources>
    <string name="app_name">BarcodeScannerForEmployees</string>
-    <string name="action_settings">Settings</string>
+    <string name="settings">Settings</string>
    <string name="first_fragment_label">Add new product</string>
    <string name="second_fragment_label">Products</string>
    <string name="netWeight">Net weight</string>
@ -87,4 +87,14 @@
    <string name="abstract_product_request">Please, scan a barcode in order to add product</string>
    <string name="no_barcode">No barcode present</string>
    <string name="no_barcode_button">No barcode</string>
+    <string name="register">Register</string>
+    <string name="login">Login</string>
+    <string name="offline">Offline</string>
+    <string name="username">Username</string>
+    <string name="password">Password</string>
+    <string name="username_already_exists">Such account already exists</string>
+    <string name="wrong_password">Wrong password</string>
+    <string name="server">Server</string>
+    <string name="my_account">My account</string>
+    <string name="my_groups">My groups</string>
 </resources>
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@ -17,15 +17,19 @@ gridlayout = "1.0.0"
 activity = "1.9.2"
 legacySupportV4 = "1.0.0"
 fragment = "1.8.4"
+okhttp = "4.10.0"
 playServicesCodeScanner = "16.1.0"
+securityCrypto = "1.0.0"
 volley = "1.2.1"
 zxingAndroidEmbedded = "4.3.0"
+material3Android = "1.3.0"

 [libraries]
 androidx-camera-camera2 = { module = "androidx.camera:camera-camera2", version.ref = "cameraView" }
 androidx-camera-lifecycle = { module = "androidx.camera:camera-lifecycle", version.ref = "cameraView" }
 androidx-camera-view = { module = "androidx.camera:camera-view", version.ref = "cameraView" }
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+androidx-security-crypto = { module = "androidx.security:security-crypto", version.ref = "securityCrypto" }
 barcode-scanning = { module = "com.google.mlkit:barcode-scanning", version.ref = "barcodeScanning" }
 junit = { group = "junit", name = "junit", version.ref = "junit" }
 androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
@ -40,9 +44,11 @@ androidx-gridlayout = { group = "androidx.gridlayout", name = "gridlayout", vers
 androidx-activity = { group = "androidx.activity", name = "activity", version.ref = "activity" }
 androidx-legacy-support-v4 = { group = "androidx.legacy", name = "legacy-support-v4", version.ref = "legacySupportV4" }
 androidx-fragment = { group = "androidx.fragment", name = "fragment", version.ref = "fragment" }
+okhttp = { module = "com.squareup.okhttp3:okhttp", version.ref = "okhttp" }
 play-services-code-scanner = { module = "com.google.android.gms:play-services-code-scanner", version.ref = "playServicesCodeScanner" }
 volley = { module = "com.android.volley:volley", version.ref = "volley" }
 zxing-android-embedded = { module = "com.journeyapps:zxing-android-embedded", version.ref = "zxingAndroidEmbedded" }
+androidx-material3-android = { group = "androidx.compose.material3", name = "material3-android", version.ref = "material3Android" }

 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }