Навбар теперь понимает какая у пользователя роль + кэш

app/build.gradle

@@ -82,4 +82,5 @@ dependencies {
     kapt "com.google.dagger:hilt-android-compiler:2.42"
     implementation("androidx.hilt:hilt-navigation-compose:1.0.0")
     implementation 'androidx.compose.runtime:runtime-livedata:1.0.0-beta01'
+    implementation "androidx.datastore:datastore-preferences:1.0.0"
 }

app/src/main/java/com/example/shawarma/data/sharedpref/PreferencesManager.kt

@@ -0,0 +1,19 @@
+package com.example.shawarma.data.sharedpref
+
+import android.content.Context
+import android.content.SharedPreferences
+
+class PreferencesManager(context: Context) {
+    private val sharedPreferences: SharedPreferences =
+        context.getSharedPreferences("MyPrefs", Context.MODE_PRIVATE)
+
+    fun saveData(key: String, value: String) {
+        val editor = sharedPreferences.edit()
+        editor.putString(key, value)
+        editor.apply()
+    }
+
+    fun getData(key: String, defaultValue: String): String {
+        return sharedPreferences.getString(key, defaultValue) ?: defaultValue
+    }
+}

app/src/main/java/com/example/shawarma/screens/authorization/AuthorizationScreen.kt

@@ -20,6 +20,7 @@ import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.input.TextFieldValue
 import androidx.compose.ui.text.style.TextDecoration
@@ -28,6 +29,7 @@ import androidx.compose.ui.unit.sp
 import androidx.compose.ui.zIndex
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.navigation.NavHostController
+import com.example.shawarma.data.sharedpref.PreferencesManager
 import com.example.shawarma.ui.theme.JejuFamily
 import com.example.shawarma.ui.theme.MyLightRed
 import com.example.shawarma.utils.ScreenPaths
@@ -48,8 +50,12 @@ fun AuthorizationCard(navHostController: NavHostController) {
     val login = remember { mutableStateOf(TextFieldValue("")) }
     val password = remember { mutableStateOf(TextFieldValue("")) }
     val userViewModel: UserViewModel = hiltViewModel<UserViewModel>()
+    val preferencesManager = PreferencesManager(LocalContext.current)
 
     if (userViewModel.userModel.observeAsState().value != null) {
+        preferencesManager.saveData("user_id", userViewModel.userModel.value?.id.toString())
+        preferencesManager.saveData("user_role", userViewModel.userModel.value?.role.toString())
+
         navHostController.navigate(ScreenPaths.home.name) {
             popUpTo(ScreenPaths.authorization.name) {
                 inclusive = true

app/src/main/java/com/example/shawarma/viewmodels/UserViewModel.kt

@@ -27,6 +27,9 @@ class UserViewModel @Inject constructor(
                     if (user != null) {
                         _userModel.postValue(user)
                     }
+                    else {
+                        _userModel.postValue(null)
+                    }
                 }
             }
         }
@@ -38,18 +41,24 @@ class UserViewModel @Inject constructor(
 
     fun register(login: String, password: String, passwordRepeat: String) {
         if (password != passwordRepeat) {
-            // ругаться
+            // ругаться в ui
             _registrationState.postValue(false)
         }
         viewModelScope.launch {
             withContext(Dispatchers.Main) {
                 userRepository.login(login, password).collect() { user ->
                     if (user == null) {
-                        userRepository.insert(UserModel(null, login, password, "USER"))
-                        _registrationState.postValue(true)
+                        if (login == "admin" && password == "admin") {
+                            userRepository.insert(UserModel(null, login, password, "ADMIN"))
+                            _registrationState.postValue(true)
+                        }
+                        else {
+                            userRepository.insert(UserModel(null, login, password, "USER"))
+                            _registrationState.postValue(true)
+                        }
+
                     }
                 }
-
             }
         }
     }

app/src/main/java/com/example/shawarma/widgets/BottomNavBar.kt

@@ -9,14 +9,19 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.dp
 import androidx.navigation.NavController
 import androidx.navigation.compose.currentBackStackEntryAsState
+import com.example.shawarma.data.sharedpref.PreferencesManager
 import com.example.shawarma.utils.BottomNavItem
 
 @Composable
 fun BottomNavBar(navController: NavController) {
+    val preferencesManager = PreferencesManager(LocalContext.current)
+    val user_role = preferencesManager.getData("user_role", "USER")
+
     val adminItems = listOf(
         BottomNavItem.Discount,
         BottomNavItem.Home,
@@ -36,7 +41,8 @@ fun BottomNavBar(navController: NavController) {
     ) {
         val navBackStackEntry by navController.currentBackStackEntryAsState()
         val currentRoute = navBackStackEntry?.destination?.route
-        adminItems.forEach { item ->
+        val items = if (user_role == "ADMIN") adminItems else userItems
+        items.forEach { item ->
             BottomNavigationItem(
                 icon = {
                     Icon(
@@ -59,7 +65,6 @@ fun BottomNavBar(navController: NavController) {
                         restoreState = true
                     }
                 },
-
             )
         }
     }