Лаб 3: проблема с соответствием версий, коммит - подушка безопасности

app/build.gradle.kts

@@ -1,6 +1,7 @@
 plugins {
     id("com.android.application")
     id("org.jetbrains.kotlin.android")
+    id ("kotlin-kapt")
 }
 
 android {
@@ -18,6 +19,9 @@ android {
         vectorDrawables {
             useSupportLibrary = true
         }
+        kapt {
+            arguments {arg("room.schemaLocation", "$projectDir/schemas")}
+        }
     }
 
     buildTypes {
@@ -68,4 +72,8 @@ dependencies {
     debugImplementation("androidx.compose.ui:ui-test-manifest")
 
     implementation("androidx.navigation:navigation-compose:2.7.3")
+
+    implementation ("androidx.room:room-runtime:2.5.0") // Библиотека "Room"
+    kapt ("androidx.room:room-compiler:2.5.0") // Кодогенератор
+    implementation ("androidx.room:room-ktx:2.5.0")
 }

app/src/main/java/com/example/mobileapp/dao/CategoryDao.kt

@@ -0,0 +1,24 @@
+package com.example.mobileapp.dao
+import androidx.room.*
+import com.example.mobileapp.models.*
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface CategoryDao {
+    @Insert
+    suspend fun insert(category: Category)
+    @Update
+    suspend fun update(category: Category)
+    @Delete
+    suspend fun delete(category: Category)
+
+    @Query("select * from category")
+    fun getAll() : Flow<List<Category>>
+    @Query("select * from category where category.id = :id")
+    fun getById(id: Int) : Flow<Category>
+    @Query("select * from category where category.name = :name")
+    fun getByName(name: String) : Flow<CategoryWithProducts>
+
+    @Query("select * from category")
+    fun getCatgoryWithProducts() : Flow<List<CategoryWithProducts>>
+}

app/src/main/java/com/example/mobileapp/dao/OrderDao.kt

@@ -0,0 +1,27 @@
+package com.example.mobileapp.dao
+import androidx.room.*
+import com.example.mobileapp.models.*
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface OrderDao {
+    @Insert
+    suspend fun insert(order: Order)
+    @Update
+    suspend fun update(order: Order)
+    @Delete
+    suspend fun delete(order: Order)
+
+    @Query("select * from 'order'")
+    fun getAll() : Flow<List<OrderWithProducts>>
+    @Query("select * from 'order' where 'order.id' =:id")
+    fun getById(id: Int): Flow<List<OrderWithProducts>>
+    @Query("select * from 'order' where ('order.user_id' =:userId and 'order.status_id' != 1 and 'order.status_id' != 4)")
+    fun getByUserId(userId: Int): Flow<List<OrderWithProducts>>
+
+    @Query("select * from 'order' where ('order.user_id' =:userId and 'order.status_id' = 1)")
+    fun getCartByUserId(userId: Int): Flow<OrderWithProducts>
+
+    @Query("select * from 'order' where ('order.status_id' != 1 and 'order.status_id' != 4)")
+    fun getOrdersToWork(): Flow<List<OrderWithProducts>>
+}

app/src/main/java/com/example/mobileapp/dao/OrderProductDao.kt

@@ -0,0 +1,9 @@
+package com.example.mobileapp.dao
+import androidx.room.*
+import com.example.mobileapp.models.OrderProduct
+
+@Dao
+interface OrderProductDao {
+    @Insert
+    suspend fun insert(order: OrderProduct)
+}

app/src/main/java/com/example/mobileapp/dao/ProductDao.kt

@@ -0,0 +1,19 @@
+package com.example.mobileapp.dao
+import androidx.room.*
+import com.example.mobileapp.models.Product
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface ProductDao {
+    @Insert
+    suspend fun insert(product: Product)
+    @Update
+    suspend fun update(product: Product)
+    @Delete
+    suspend fun delete(product: Product)
+
+    @Query("select * from product")
+    fun getAll() : Flow<List<Product>>
+    @Query("select * from product where product.id = :id")
+    fun getById(id: Int): Flow<Product>
+}

app/src/main/java/com/example/mobileapp/dao/RoleDao.kt

@@ -0,0 +1,26 @@
+package com.example.mobileapp.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import androidx.room.Update
+import com.example.mobileapp.models.*
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface RoleDao {
+    @Insert
+    suspend fun insert(role: Role)
+    @Update
+    suspend fun update(role: Role)
+    @Delete
+    suspend fun delete(role: Role)
+
+    @Query("select * from role")
+    fun getAll() : Flow<List<Role>>
+    @Query("select * from role where role.id = :id")
+    fun getById(id: Int) : Flow<Role>
+    @Query("select * from role where role.name = :name")
+    fun getByName(name: String) : Flow<Role>
+}

app/src/main/java/com/example/mobileapp/dao/StatusDao.kt

@@ -0,0 +1,25 @@
+package com.example.mobileapp.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import androidx.room.Update
+import com.example.mobileapp.models.Role
+import com.example.mobileapp.models.Status
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface StatusDao {
+    @Insert
+    suspend fun insert(status: Status)
+    @Update
+    suspend fun update(status: Status)
+    @Delete
+    suspend fun delete(status: Status)
+
+    @Query("select * from status")
+    fun getAll() : Flow<List<Status>>
+    @Query("select * from status where status.id = :id")
+    fun getById(id: Int) : Flow<Status>
+}

app/src/main/java/com/example/mobileapp/dao/UserDao.kt

@@ -0,0 +1,20 @@
+package com.example.mobileapp.dao
+import androidx.room.*
+import com.example.mobileapp.models.User
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface UserDao {
+    @Insert
+    suspend fun insert(user: User)
+    @Update
+    suspend fun update(user: User)
+    @Delete
+    suspend fun delete(user: User)
+
+    @Query("select * from user order by login collate nocase asc")
+    fun getAll() : Flow<List<User>>
+
+    @Query("select * from user where user.id = :id")
+    fun getById(id: Int): User
+}

app/src/main/java/com/example/mobileapp/db/AppDatabase.kt

@@ -0,0 +1,158 @@
+package com.example.mobileapp.db
+import android.content.Context
+import androidx.room.*
+import androidx.sqlite.db.SupportSQLiteDatabase
+import com.example.mobileapp.dao.*
+import com.example.mobileapp.models.*
+import kotlinx.coroutines.*
+
+@Database(
+    entities =
+    [
+        Role::class,
+        Status::class,
+        Category::class,
+        User::class,
+        Order::class,
+        Product::class,
+        OrderProduct::class,
+    ],
+    version = 1,
+    exportSchema = false
+)
+abstract class AppDatabase : RoomDatabase() {
+    abstract fun roleDao() : RoleDao
+    abstract fun statusDao() : StatusDao
+    abstract fun categoryDao() : CategoryDao
+    abstract fun userDao() : UserDao
+    abstract fun productDao() : ProductDao
+    abstract fun orderDao() : OrderDao
+    abstract fun orderProductDao() : OrderProductDao
+
+    companion object {
+        private const val DB_NAME: String = "mobileapp-db"
+
+        @Volatile
+        private var INSTANCE: AppDatabase? = null
+
+        private suspend fun populateDatabase() {
+            INSTANCE?.let { database ->
+
+                //region Roles
+                val roleDao = database.roleDao()
+                roleDao.insert(Role(1, "admin"))
+                roleDao.insert(Role(2, "worker"))
+                roleDao.insert(Role(3, "user"))
+                //endregion
+
+                //region Statuses
+                val statusDao = database.statusDao()
+                statusDao.insert(Status(1, "Корзина"))
+                statusDao.insert(Status(2, "Принят"))
+                statusDao.insert(Status(3, "Готов"))
+                statusDao.insert(Status(4, "Выдан"))
+                //endregion
+
+                //region Categories
+                val categoryDao = database.categoryDao()
+                categoryDao.insert(Category(1, "Бургеры"))
+                categoryDao.insert(Category(2, "Картошка"))
+                categoryDao.insert(Category(3, "Напитки"))
+                //endregion
+
+                //region Users
+                val userDao = database.userDao()
+                userDao.insert(User(1, "admin", "admin", 1))
+                userDao.insert(User(2, "worker", "worker", 2))
+                userDao.insert(User(3, "user", "user", 3))
+                //endregion
+
+                //region Products
+                val productDao = database.productDao()
+                //Бургеры
+                productDao.insert(Product(1, "Бургер1", 1, 150))
+                productDao.insert(Product(2, "Бургер2", 1, 300))
+                productDao.insert(Product(3, "Бургер3", 1, 450))
+                //Картошка
+                productDao.insert(Product(4, "Картошка1", 2, 50))
+                productDao.insert(Product(5, "Картошка2", 2, 100))
+                productDao.insert(Product(6, "Картошка3", 2, 150))
+                //Напитки
+                productDao.insert(Product(7, "Напиток1", 3, 100))
+                productDao.insert(Product(8, "Напиток2", 3, 200))
+                productDao.insert(Product(9, "Напиток3", 3, 300))
+                //endregion
+
+                //region Orders
+                val orderDao = database.orderDao()
+                //Корзины
+                orderDao.insert(Order(1,1,400,1))
+                orderDao.insert(Order(2,2,600,1))
+                orderDao.insert(Order(3,3,1800,1))
+                //Заказы
+                orderDao.insert(Order(4,1,250,3))
+                orderDao.insert(Order(5,1,400,2))
+                orderDao.insert(Order(6,2,750,3))
+                orderDao.insert(Order(7,2,550,2))
+                orderDao.insert(Order(8,3,400,3))
+                orderDao.insert(Order(9,3,250,2))
+                //endregion
+
+                //region OrderProducts
+                val orderProductDao = database.orderProductDao()
+                //Корзины
+                //1
+                orderProductDao.insert(OrderProduct(1,1,2))
+                orderProductDao.insert(OrderProduct(1,7,1))
+                //2
+                orderProductDao.insert(OrderProduct(2,2,1))
+                orderProductDao.insert(OrderProduct(2,5,1))
+                orderProductDao.insert(OrderProduct(2,8,1))
+                //3
+                orderProductDao.insert(OrderProduct(3,3,2))
+                orderProductDao.insert(OrderProduct(3,6,2))
+                orderProductDao.insert(OrderProduct(3,9,2))
+                //Заказы
+                //1
+                orderProductDao.insert(OrderProduct(4,1,1))
+                orderProductDao.insert(OrderProduct(4,7,1))
+                //2
+                orderProductDao.insert(OrderProduct(5,2,1))
+                orderProductDao.insert(OrderProduct(5,5,1))
+                //3
+                orderProductDao.insert(OrderProduct(6,2,1))
+                orderProductDao.insert(OrderProduct(6,3,1))
+                //4
+                orderProductDao.insert(OrderProduct(7,3,1))
+                orderProductDao.insert(OrderProduct(7,7,1))
+                //5
+                orderProductDao.insert(OrderProduct(8,2,1))
+                orderProductDao.insert(OrderProduct(8,7,1))
+                //6
+                orderProductDao.insert(OrderProduct(9,4,1))
+                orderProductDao.insert(OrderProduct(9,8,1))
+                //endregion
+            }
+        }
+
+        fun getInstance(appContext: Context): AppDatabase {
+            return INSTANCE ?: synchronized(this) {
+                Room.databaseBuilder(
+                    appContext,
+                    AppDatabase::class.java,
+                    DB_NAME
+                )
+                    .addCallback(object : Callback() {
+                        override fun onCreate(db: SupportSQLiteDatabase) {
+                            super.onCreate(db)
+                            CoroutineScope(Dispatchers.IO).launch {
+                                populateDatabase()
+                            }
+                        }
+                    })
+                    .build()
+                    .also { INSTANCE = it }
+            }
+        }
+    }
+}

app/src/main/java/com/example/mobileapp/models/Cart.kt

@@ -1,17 +0,0 @@
-package com.example.mobileapp.models
-
-data class Cart(
-    val id: Int,
-    val userId: Int,
-    val price: Int?,
-)
-
-fun getCarts(): List<Cart> {
-    return listOf(
-        Cart(1,1, getCartProductsByCartId(1).sumOf { getProductById(it.productId).price * it.amount }),
-    )
-}
-
-fun getCartByUserId(id: Int): Cart{
-    return getCarts().find { it.userId == id }!!
-}

app/src/main/java/com/example/mobileapp/models/CartProduct.kt

@@ -1,19 +0,0 @@
-package com.example.mobileapp.models
-
-data class CartProduct(
-    val cartId: Int,
-    val productId: Int,
-    val amount: Int,
-)
-
-fun getAllCartProducts(): List<CartProduct> {
-    return listOf(
-        CartProduct(1, 1, 2),
-        CartProduct(1, 4, 1),
-        CartProduct(1, 7, 1),
-    )
-}
-
-fun getCartProductsByCartId(id: Int): List<CartProduct> {
-    return getAllCartProducts().filter { it.cartId == id }
-}

app/src/main/java/com/example/mobileapp/models/Category.kt

@@ -1,18 +1,22 @@
 package com.example.mobileapp.models
+import androidx.room.*
 
+@Entity(tableName = "category")
 data class Category(
-    val id: Int,
+    @PrimaryKey(autoGenerate = true)
-    val title: String,
+    @ColumnInfo(name = "id")
-)
+    val id: Int?,
+    @ColumnInfo(name = "name")
+    val name: String
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as Category
+        return id == other.id
+    }
 
-fun getCategories():List<Category>{
+    override fun hashCode(): Int {
-    return listOf(
+        return id ?: -1
-        Category(1, "Бургеры"),
+    }
-        Category(2, "Картошка"),
-        Category(3, "Напитки"),
-    )
-}
-
-fun getCategoryById(id: Int):String{
-    return getCategories().find{ it.id == id }!!.title
 }

app/src/main/java/com/example/mobileapp/models/CategoryWithProducts.kt

@@ -0,0 +1,9 @@
+package com.example.mobileapp.models
+import androidx.room.*
+
+data class CategoryWithProducts(
+    @Embedded
+    val category: Category,
+    @Relation(parentColumn = "id", entityColumn = "category_id")
+    val products: List<Product>
+)

app/src/main/java/com/example/mobileapp/models/Order.kt

@@ -1,21 +1,31 @@
 package com.example.mobileapp.models
+import androidx.room.*
 
-data class Order(
+@Entity(
-    val id: Int,
+    tableName = "order",
-    val userId: Int,
+    foreignKeys = [
-    val price: Int,
+        ForeignKey(User::class, ["id"], ["user_id"])
-    val status: String
+    ]
-
 )
+data class Order(
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = "id")
+    val id: Int?,
+    @ColumnInfo(name = "user_id")
+    val userId: Int,
+    @ColumnInfo(name = "price")
+    val price: Int,
+    @ColumnInfo(name = "status_id")
+    val statusId: Int,
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as Order
+        return id == other.id
+    }
 
-fun getOrders(): List<Order> {
+    override fun hashCode(): Int {
-    return listOf(
+        return id ?: -1
-        Order(1,1, getOrderProductsByOrderId(1).sumOf { getProductById(it.productId).price * it.amount }, "Принят"),
+    }
-        Order(2,1, getOrderProductsByOrderId(2).sumOf { getProductById(it.productId).price * it.amount }, "Принят"),
-    )
-}
-
-
-fun getOrdersByUserId(id: Int): List<Order>{
-    return getOrders().filter { it.userId == id }
 }

app/src/main/java/com/example/mobileapp/models/OrderProduct.kt

@@ -1,22 +1,12 @@
 package com.example.mobileapp.models
+import androidx.room.*
 
+@Entity(tableName = "order_product", primaryKeys = ["order_id", "product_id"])
 data class OrderProduct(
-    val orderId: Int,
+    @ColumnInfo(name = "order_id", index = true)
-    val productId: Int,
+    var orderId: Int,
-    val amount: Int,
+    @ColumnInfo(name = "product_id", index = true)
+    var productId: Int,
+    @ColumnInfo(name = "amount")
+    val amount: Int
 )
-
-fun getAllOrderProducts(): List<OrderProduct> {
-    return listOf(
-        OrderProduct(1, 1, 2),
-        OrderProduct(1, 4, 1),
-        OrderProduct(1, 7, 1),
-        OrderProduct(2, 1, 2),
-        OrderProduct(2, 4, 1),
-        OrderProduct(2, 7, 1),
-    )
-}
-
-fun getOrderProductsByOrderId(id: Int): List<OrderProduct> {
-    return getAllOrderProducts().filter { it.orderId == id }
-}

app/src/main/java/com/example/mobileapp/models/OrderProductWithProduct.kt

@@ -0,0 +1,9 @@
+package com.example.mobileapp.models
+import androidx.room.*
+
+data class OrderProductWithProduct(
+    @Embedded
+    val orderProduct: OrderProduct,
+    @Relation(entity = Product::class, parentColumn = "product_id", entityColumn = "id")
+    val product: Product
+)

app/src/main/java/com/example/mobileapp/models/OrderWithProducts.kt

@@ -0,0 +1,9 @@
+package com.example.mobileapp.models
+import androidx.room.*
+
+data class OrderWithProducts(
+    @Embedded
+    val order: Order,
+    @Relation(entity = OrderProduct::class, parentColumn = "id", entityColumn = "order_id")
+    val orderWithProducts: List<OrderProductWithProduct>
+)

app/src/main/java/com/example/mobileapp/models/Product.kt

@@ -1,32 +1,26 @@
 package com.example.mobileapp.models
+import androidx.room.*
 
+@Entity(tableName = "product")
 data class Product(
-    val id: Int,
+    @PrimaryKey(autoGenerate = true)
-    val picture: String,
+    @ColumnInfo(name = "id")
-    val title: String,
+    val id: Int?,
-    val category: Int,
+    @ColumnInfo(name = "name")
-    val price: Int,
+    val name: String,
-)
+    @ColumnInfo(name = "category_id")
+    val categoryId: Int,
+    @ColumnInfo(name = "price")
+    val price: Int
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as Product
+        return id == other.id
+    }
 
-
+    override fun hashCode(): Int {
-fun getProducts() :List<Product> {
+        return id ?: -1
-    return listOf(
+    }
-        Product(1, "Бургер", "Бургер1", 1,150),
-        Product(2, "Бургер", "Бургер2", 1,300),
-        Product(3, "Бургер", "Бургер3", 1,450),
-        Product(4, "Картошка", "Картошка1", 2,100),
-        Product(5, "Картошка", "Картошка2", 2,200),
-        Product(6, "Картошка", "Картошка3", 2,300),
-        Product(7, "Пепси", "Пепси1", 3,50),
-        Product(8, "Пепси", "Пепси2", 3,100),
-        Product(9, "Пепси", "Пепси3", 3,150),
-    )
-}
-
-fun getProductsByCategoryId(id: Int) :List<Product> {
-    return getProducts().filter { it.category == id }
-}
-
-fun getProductById(id: Int) : Product {
-    return getProducts().find{ it.id == id }!!
 }

app/src/main/java/com/example/mobileapp/models/Role.kt

@@ -0,0 +1,22 @@
+package com.example.mobileapp.models
+import androidx.room.*
+
+@Entity(tableName = "role")
+data class Role(
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = "id")
+    val id: Int?,
+    @ColumnInfo(name = "name")
+    val name: String
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as Role
+        return id == other.id
+    }
+
+    override fun hashCode(): Int {
+        return id ?: -1
+    }
+}

app/src/main/java/com/example/mobileapp/models/Roles.kt

@@ -1,30 +0,0 @@
-package com.example.mobileapp.models
-
-enum class Roles(val roleId: Int) {
-    admin(0),
-    worker(1),
-    user(2);
-
-    companion object{
-        fun fromId(id: Int): Roles? {
-            return values().find { it.roleId == id }
-        }
-    }
-}
-
-data class Role(
-    val id: Int,
-    val title: String,
-)
-
-fun getRoles():List<Role>{
-    return listOf(
-        Role(1, "admin"),
-        Role(2, "worker"),
-        Role(3, "user"),
-    )
-}
-
-fun getRoleById(id: Int):String{
-    return getRoles().find{ it.id == id }!!.title
-}

app/src/main/java/com/example/mobileapp/models/Status.kt

@@ -0,0 +1,22 @@
+package com.example.mobileapp.models
+import androidx.room.*
+
+@Entity(tableName = "status")
+data class Status(
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = "id")
+    val id: Int?,
+    @ColumnInfo(name = "name")
+    val name: String
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as Status
+        return id == other.id
+    }
+
+    override fun hashCode(): Int {
+        return id ?: -1
+    }
+}

app/src/main/java/com/example/mobileapp/models/User.kt

@@ -1,20 +1,26 @@
 package com.example.mobileapp.models
+import androidx.room.*
 
+@Entity(tableName = "user")
 data class User(
-    val id: Int,
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = "id")
+    val id: Int?,
+    @ColumnInfo(name = "login")
     val login: String,
+    @ColumnInfo(name = "password")
     val password: String,
-    val role: Roles
+    @ColumnInfo(name = "role_id")
-)
+    val roleId: Int
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as User
+        return id == other.id
+    }
 
-fun getAllUsers():List<User>{
+    override fun hashCode(): Int {
-    return listOf(
+        return id ?: -1
-        User(1, "admin", "admin", Roles.admin),
+    }
-        User(2, "worker", "worker", Roles.worker),
-        User(3, "user", "user", Roles.user),
-    )
-}
-
-fun currentUser():User{
-    return getAllUsers()[0]
 }

app/src/main/java/com/example/mobileapp/navigation/AppNavigation.kt

@@ -13,9 +13,13 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Scaffold
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
 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
@@ -23,8 +27,8 @@ import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.currentBackStackEntryAsState
 import androidx.navigation.compose.rememberNavController
-import com.example.mobileapp.models.Roles
+import com.example.mobileapp.db.AppDatabase
-import com.example.mobileapp.models.currentUser
+import com.example.mobileapp.models.User
 import com.example.mobileapp.screens.AuthorizationScreen
 import com.example.mobileapp.screens.CartScreen
 import com.example.mobileapp.screens.CreateProductScreen
@@ -36,6 +40,9 @@ import com.example.mobileapp.screens.OrderScreen
 import com.example.mobileapp.screens.ProfileScreen
 import com.example.mobileapp.screens.RegistrationScreen
 import com.example.mobileapp.screens.UsersScreen
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.withContext
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -84,12 +91,23 @@ fun CustomNavigationBar(navController: NavController) {
             .background(Color(212, 206, 203))
     ) {
         var listOfNavItems : List<NavItem>? = null
-
+        val user = remember { mutableStateOf(User(-1, "", "", -1)) }
-        when (currentUser().role.name) {
+        val context = LocalContext.current
-            Roles.admin.name -> listOfNavItems = listOfAdminNavItems
+        LaunchedEffect(Unit) {
-            Roles.worker.name -> listOfNavItems = listOfWorkerNavItems
+            withContext(Dispatchers.IO) {
-            Roles.user.name -> listOfNavItems = listOfUserNavItems
+                user.value = AppDatabase.getInstance(context).userDao().getById(1)
+                (AppDatabase.getInstance(context).roleDao().getByName("admin")).collect{
+                    if (it.id == user.value.roleId) { listOfNavItems = listOfAdminNavItems }
                 }
+                (AppDatabase.getInstance(context).roleDao().getByName("worker")).collect{
+                    if (it.id == user.value.roleId) { listOfNavItems = listOfWorkerNavItems }
+                }
+                (AppDatabase.getInstance(context).roleDao().getByName("user")).collect{
+                    if (it.id == user.value.roleId) { listOfNavItems = listOfUserNavItems }
+                }
+            }
+        }
+
 
         listOfNavItems?.forEachIndexed { index, navItem ->
             OutlinedButton(
@@ -105,7 +123,7 @@ fun CustomNavigationBar(navController: NavController) {
                 border = BorderStroke(4.dp, Color(222,161,69)),
                 shape = RoundedCornerShape(
                     topStart = if (index == 0) 30.dp else 0.dp,
-                    topEnd = if (index == listOfNavItems.size - 1) 30.dp else 0.dp
+                    topEnd = if (index == listOfNavItems!!.size - 1) 30.dp else 0.dp
                 ),
                 colors = ButtonDefaults.outlinedButtonColors(Color(255,186,83)),
 

app/src/main/java/com/example/mobileapp/screens/CartScreen.kt

@@ -1,5 +1,6 @@
 package com.example.mobileapp.screens
 
+import android.annotation.SuppressLint
 import androidx.compose.foundation.BorderStroke
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
@@ -19,11 +20,14 @@ import androidx.compose.material3.Card
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 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.res.painterResource
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
@@ -32,11 +36,14 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.example.mobileapp.R
-import com.example.mobileapp.models.currentUser
+import com.example.mobileapp.db.AppDatabase
-import com.example.mobileapp.models.getCartByUserId
+import com.example.mobileapp.models.CategoryWithProducts
-import com.example.mobileapp.models.getCartProductsByCartId
+import com.example.mobileapp.models.Order
-import com.example.mobileapp.models.getProductById
+import com.example.mobileapp.models.OrderWithProducts
 import com.example.mobileapp.widgets.Header
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
 @Composable
 fun CartScreen(){
@@ -49,6 +56,7 @@ fun CartScreen(){
     }
 }
 
+@SuppressLint("CoroutineCreationDuringComposition")
 @Composable
 fun CartCard(){
     Column(
@@ -76,15 +84,24 @@ fun CartCard(){
                     .padding(top = 10.dp),
                 textAlign = TextAlign.Center,
             )
-            val cart = getCartByUserId(currentUser().id)
+            val cartWithProducts = remember { mutableStateOf(OrderWithProducts(Order(-1, -1, -1, -1), listOf())) }
-            val cartProducts = getCartProductsByCartId(cart.id)
+            val context = LocalContext.current
+            val scope = rememberCoroutineScope()
+
+            LaunchedEffect(Unit) {
+                withContext(Dispatchers.IO) {
+                    AppDatabase.getInstance(context).orderDao().getCartByUserId(1).collect { data ->
+                        cartWithProducts.value = data
+                    }
+                }
+            }
 
             LazyColumn(
                 modifier = Modifier
                     .fillMaxWidth()
             ) {
-                items(cartProducts){ cartProduct ->
+                items(cartWithProducts.value.orderWithProducts){ cartProduct ->
-                    val amount = remember { mutableStateOf(TextFieldValue(cartProduct.amount.toString())) }
+                    val amount = remember { mutableStateOf(TextFieldValue(cartProduct.orderProduct.amount.toString())) }
                     Card(
                         shape = RoundedCornerShape(20.dp),
                         border = BorderStroke(3.dp, Color(222,161,69)),
@@ -99,7 +116,13 @@ fun CartCard(){
                             verticalAlignment = Alignment.CenterVertically,
                             horizontalArrangement = Arrangement.SpaceEvenly,
                         ){
-                            if (getProductById(cartProduct.productId).picture == "Бургер"){
+                            val category = remember { mutableStateOf("")}
+                            scope.launch {
+                                AppDatabase.getInstance(context).categoryDao().getById(cartProduct.product.categoryId).collect { data ->
+                                    category.value = data.name
+                                }
+                            }
+                            if (category.value == "Бургер"){
                                 Image(
                                     painterResource(
                                         id = R.drawable.burger
@@ -110,7 +133,7 @@ fun CartCard(){
                                         .padding(5.dp),
                                 )
                             }
-                            if (getProductById(cartProduct.productId).picture == "Картошка"){
+                            if (category.value == "Картошка"){
                                 Image(
                                     painterResource(
                                         id = R.drawable.potato
@@ -121,7 +144,7 @@ fun CartCard(){
                                         .padding(5.dp),
                                 )
                             }
-                            if (getProductById(cartProduct.productId).picture == "Пепси"){
+                            if (category.value == "Напитки"){
                                 Image(
                                     painterResource(
                                         id = R.drawable.pepsi
@@ -138,14 +161,14 @@ fun CartCard(){
                                 verticalArrangement = Arrangement.SpaceAround
                             ) {
                                 Text(
-                                    text = getProductById(cartProduct.productId).title,
+                                    text = cartProduct.product.name,
                                     color = Color.Black,
                                     fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                                     fontSize = 17.sp,
                                     textAlign = TextAlign.Center,
                                 )
                                 Text(
-                                    text = getProductById(cartProduct.productId).price.toString() + " р.",
+                                    text = cartProduct.product.price.toString() + " р.",
                                     color = Color.Black,
                                     fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                                     fontSize = 17.sp,
@@ -221,7 +244,7 @@ fun CartCard(){
                     verticalAlignment = Alignment.CenterVertically,
                 ){
                     Text(
-                        text = "Итого: " + cart.price.toString() + " р.",
+                        text = "Итого: " + cartWithProducts.value.order.price.toString() + " р.",
                         color = Color.Black,
                         fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                         fontSize = 20.sp,

app/src/main/java/com/example/mobileapp/screens/CreateProductScreen.kt

@@ -2,10 +2,7 @@ package com.example.mobileapp.screens
 
 import androidx.compose.foundation.BorderStroke
 import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
@@ -25,24 +22,28 @@ import androidx.compose.material3.TextField
 import androidx.compose.material3.TextFieldDefaults
 import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 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.font.Font
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.input.TextFieldValue
 import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.example.mobileapp.R
-import com.example.mobileapp.models.getCategories
+import com.example.mobileapp.db.AppDatabase
 import com.example.mobileapp.widgets.Header
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 
 @Composable
 fun CreateProductScreen(){
@@ -83,9 +84,20 @@ fun CreateProductCard(){
                     .padding(top = 10.dp),
                 textAlign = TextAlign.Center,
             )
-            val picture = remember { mutableStateOf(TextFieldValue("")) }
+            val categoryList = remember { mutableStateListOf<String>() }
+            var expanded by remember { mutableStateOf(false) }
             val title = remember { mutableStateOf(TextFieldValue("")) }
             val price = remember { mutableStateOf(TextFieldValue("")) }
+            val context = LocalContext.current
+            LaunchedEffect(Unit) {
+                withContext(Dispatchers.IO) {
+                    AppDatabase.getInstance(context).categoryDao().getAll().collect { data ->
+                        categoryList.clear()
+                        categoryList.addAll(data.map { it.name })
+                    }
+                }
+            }
+            var selectedCategory by remember { mutableStateOf(categoryList[0]) }
 
             Card(
                 shape = RoundedCornerShape(20.dp),
@@ -96,25 +108,6 @@ fun CreateProductCard(){
                 Column (
                     modifier = Modifier.background(Color.White)
                 ) {
-                    OutlinedTextField(
-                        value = picture.value,
-                        onValueChange = {picture.value = it},
-                        placeholder = { Text(text = "Фото", fontSize = 20.sp, color = Color.LightGray) },
-                        singleLine = true,
-
-                        shape = RoundedCornerShape(20.dp),
-                        textStyle = TextStyle(fontSize = 20.sp),
-                        colors = TextFieldDefaults.outlinedTextFieldColors(
-                            textColor = Color.Black,
-                            disabledTextColor = Color.Transparent,
-                            containerColor = Color.White,
-                            focusedBorderColor = Color(222,161,69),
-                            unfocusedBorderColor = Color(222,161,69),
-                        ),
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .padding(top = 20.dp, start = 20.dp, end = 20.dp),
-                    )
                     OutlinedTextField(
                         value = title.value,
                         onValueChange = {title.value = it},
@@ -139,9 +132,6 @@ fun CreateProductCard(){
                         border = BorderStroke(1.dp, Color(222,161,69)),
                         modifier = Modifier.fillMaxWidth().padding(top = 20.dp, start = 20.dp, end = 20.dp),
                     ){
-                        val dataList = getCategories().map { it.title }
-                        var expanded by remember { mutableStateOf(false) }
-                        var selectedItem by remember { mutableStateOf(dataList[0]) }
                         MaterialTheme(
                             colorScheme = lightColorScheme(
                                 surfaceVariant= Color.White,
@@ -159,7 +149,7 @@ fun CreateProductCard(){
                                     modifier = Modifier
                                         .menuAnchor().fillMaxWidth(),
                                     readOnly = true,
-                                    value = selectedItem,
+                                    value = selectedCategory,
                                     onValueChange = {},
                                     label = { Text("Категория") },
                                     trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(expanded = expanded) },
@@ -171,11 +161,11 @@ fun CreateProductCard(){
                                         expanded = false
                                     },
                                 ) {
-                                    dataList.forEach { selectionOption ->
+                                    categoryList.forEach { selectionOption ->
                                         DropdownMenuItem(
                                             text = { Text(selectionOption) },
                                             onClick = {
-                                                selectedItem = selectionOption
+                                                selectedCategory = selectionOption
                                                 expanded = false
                                             },
                                             contentPadding = ExposedDropdownMenuDefaults.ItemContentPadding,

app/src/main/java/com/example/mobileapp/screens/EditMenuScreen.kt

@@ -20,9 +20,13 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 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.res.painterResource
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
@@ -31,10 +35,12 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.navigation.NavController
 import com.example.mobileapp.R
-import com.example.mobileapp.models.getCategories
+import com.example.mobileapp.db.AppDatabase
-import com.example.mobileapp.models.getProductsByCategoryId
+import com.example.mobileapp.models.CategoryWithProducts
 import com.example.mobileapp.navigation.Screens
 import com.example.mobileapp.widgets.Header
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 
 @Composable
 fun EditMenuScreen(navController: NavController){
@@ -64,14 +70,25 @@ fun EditMenuCard(navController: NavController){
 
             horizontalAlignment = Alignment.CenterHorizontally,
         ) {
-            val categories = getCategories()
+            val categoryWithProducts = remember { mutableListOf<CategoryWithProducts>()}
+            val context = LocalContext.current
+            val scope = rememberCoroutineScope()
+
+            LaunchedEffect(Unit) {
+                withContext(Dispatchers.IO) {
+                    AppDatabase.getInstance(context).categoryDao().getCatgoryWithProducts().collect { data ->
+                        categoryWithProducts.addAll(data)
+                    }
+                }
+            }
+
             LazyColumn(
                 modifier = Modifier
                     .fillMaxSize()
             ) {
-                items(categories){ category ->
+                items(categoryWithProducts){ item ->
                     Text(
-                        text = category.title,
+                        text = item.category.name,
                         color = Color.Black,
                         fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                         fontSize = 34.sp,
@@ -81,9 +98,7 @@ fun EditMenuCard(navController: NavController){
                         textAlign = TextAlign.Center,
                     )
 
-                    val products = getProductsByCategoryId(category.id)
+                    item.products.forEach{ product ->
-
-                    products.forEach{ product ->
                         Card(
                             shape = RoundedCornerShape(20.dp),
                             border = BorderStroke(3.dp, Color(222,161,69)),
@@ -98,7 +113,7 @@ fun EditMenuCard(navController: NavController){
                                 verticalAlignment = Alignment.CenterVertically,
                                 horizontalArrangement = Arrangement.SpaceEvenly,
                             ){
-                                if (product.picture == "Бургер"){
+                                if (item.category.name == "Бургеры"){
                                     Image(
                                         painterResource(
                                             id = R.drawable.burger
@@ -109,7 +124,7 @@ fun EditMenuCard(navController: NavController){
                                             .padding(5.dp),
                                     )
                                 }
-                                if (product.picture == "Картошка"){
+                                if (item.category.name == "Картошка"){
                                     Image(
                                         painterResource(
                                             id = R.drawable.potato
@@ -120,7 +135,7 @@ fun EditMenuCard(navController: NavController){
                                             .padding(5.dp),
                                     )
                                 }
-                                if (product.picture == "Пепси"){
+                                if (item.category.name == "Напитки"){
                                     Image(
                                         painterResource(
                                             id = R.drawable.pepsi
@@ -137,7 +152,7 @@ fun EditMenuCard(navController: NavController){
                                     verticalArrangement = Arrangement.SpaceAround
                                 ) {
                                     Text(
-                                        text = product.title,
+                                        text = product.name,
                                         color = Color.Black,
                                         fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                                         fontSize = 17.sp,

app/src/main/java/com/example/mobileapp/screens/EditProductScreen.kt

@@ -22,13 +22,16 @@ import androidx.compose.material3.TextField
 import androidx.compose.material3.TextFieldDefaults
 import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 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.font.Font
 import androidx.compose.ui.text.font.FontFamily
@@ -37,10 +40,10 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.example.mobileapp.R
-import com.example.mobileapp.models.getCategories
+import com.example.mobileapp.db.AppDatabase
-import com.example.mobileapp.models.getCategoryById
-import com.example.mobileapp.models.getProductById
 import com.example.mobileapp.widgets.Header
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 
 @Composable
 fun EditProductScreen(id: Int){
@@ -81,12 +84,28 @@ fun EditProductCard(id: Int){
                     .padding(top = 10.dp),
                 textAlign = TextAlign.Center,
             )
-            val product = getProductById(id)
+            val context = LocalContext.current
-
+            val categoryList = remember { mutableStateListOf<String>() }
-            val picture = remember { mutableStateOf(TextFieldValue(product.picture)) }
+            var selectedCategory by remember { mutableStateOf("") }
-            val title = remember { mutableStateOf(TextFieldValue(product.title)) }
+            var expanded by remember { mutableStateOf(false) }
-            val price = remember { mutableStateOf(TextFieldValue(product.price.toString())) }
+            val title = remember { mutableStateOf(TextFieldValue("")) }
+            val price = remember { mutableStateOf(TextFieldValue("")) }
+            LaunchedEffect(Unit) {
+                withContext(Dispatchers.IO) {
+                    AppDatabase.getInstance(context).productDao().getById(id).collect {data ->
+                        title.value = TextFieldValue(data.name)
+                        price.value = TextFieldValue(data.price.toString())
 
+                        AppDatabase.getInstance(context).categoryDao().getById(data.categoryId).collect {
+                            selectedCategory = it.name
+                        }
+                    }
+                    AppDatabase.getInstance(context).categoryDao().getAll().collect { data ->
+                        categoryList.clear()
+                        categoryList.addAll(data.map { it.name })
+                    }
+                }
+            }
             Card(
                 shape = RoundedCornerShape(20.dp),
                 border = BorderStroke(3.dp, Color(222,161,69)),
@@ -96,25 +115,6 @@ fun EditProductCard(id: Int){
                 Column (
                     modifier = Modifier.background(Color.White)
                 ) {
-                    OutlinedTextField(
-                        value = picture.value,
-                        onValueChange = {picture.value = it},
-                        placeholder = { Text(text = "Фото", fontSize = 20.sp, color = Color.LightGray) },
-                        singleLine = true,
-
-                        shape = RoundedCornerShape(20.dp),
-                        textStyle = TextStyle(fontSize = 20.sp),
-                        colors = TextFieldDefaults.outlinedTextFieldColors(
-                            textColor = Color.Black,
-                            disabledTextColor = Color.Transparent,
-                            containerColor = Color.White,
-                            focusedBorderColor = Color(222,161,69),
-                            unfocusedBorderColor = Color(222,161,69),
-                        ),
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .padding(top = 20.dp, start = 20.dp, end = 20.dp),
-                    )
                     OutlinedTextField(
                         value = title.value,
                         onValueChange = {title.value = it},
@@ -139,9 +139,6 @@ fun EditProductCard(id: Int){
                         border = BorderStroke(1.dp, Color(222,161,69)),
                         modifier = Modifier.fillMaxWidth().padding(top = 20.dp, start = 20.dp, end = 20.dp),
                     ){
-                        val dataList = getCategories().map { it.title }
-                        var expanded by remember { mutableStateOf(false) }
-                        var selectedItem by remember { mutableStateOf(getCategoryById(product.category)) }
                         MaterialTheme(
                             colorScheme = lightColorScheme(
                                 surfaceVariant= Color.White,
@@ -159,7 +156,7 @@ fun EditProductCard(id: Int){
                                     modifier = Modifier
                                         .menuAnchor().fillMaxWidth(),
                                     readOnly = true,
-                                    value = selectedItem,
+                                    value = selectedCategory,
                                     onValueChange = {},
                                     label = { Text("Категория") },
                                     trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(expanded = expanded) },
@@ -171,11 +168,11 @@ fun EditProductCard(id: Int){
                                         expanded = false
                                     },
                                 ) {
-                                    dataList.forEach { selectionOption ->
+                                    categoryList.forEach { selectionOption ->
                                         DropdownMenuItem(
                                             text = { Text(selectionOption) },
                                             onClick = {
-                                                selectedItem = selectionOption
+                                                selectedCategory = selectionOption
                                                 expanded = false
                                             },
                                             contentPadding = ExposedDropdownMenuDefaults.ItemContentPadding,

app/src/main/java/com/example/mobileapp/screens/MenuScreen.kt

@@ -19,9 +19,14 @@ import androidx.compose.material3.Card
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 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.res.painterResource
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
@@ -29,9 +34,12 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.example.mobileapp.R
-import com.example.mobileapp.models.getCategories
+import com.example.mobileapp.db.AppDatabase
-import com.example.mobileapp.models.getProductsByCategoryId
+import com.example.mobileapp.models.Category
+import com.example.mobileapp.models.CategoryWithProducts
 import com.example.mobileapp.widgets.Header
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 
 @Composable
 fun MenuScreen(){
@@ -61,14 +69,27 @@ fun MenuCard(){
 
             horizontalAlignment = Alignment.CenterHorizontally,
         ) {
-            val categories = getCategories()
+            val categoryWithProducts = remember { mutableListOf<CategoryWithProducts>()}
+            val context = LocalContext.current
+            val scope = rememberCoroutineScope()
+
+            LaunchedEffect(Unit) {
+                withContext(Dispatchers.IO) {
+                    AppDatabase.getInstance(context).categoryDao().getCatgoryWithProducts().collect { data ->
+                        categoryWithProducts.addAll(data)
+                    }
+                }
+            }
+
+
+
             LazyColumn(
                 modifier = Modifier
                     .fillMaxSize()
             ) {
-                items(categories){ category ->
+                items(categoryWithProducts){ item ->
                     Text(
-                        text = category.title,
+                        text = item.category.name,
                         color = Color.Black,
                         fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                         fontSize = 34.sp,
@@ -78,9 +99,7 @@ fun MenuCard(){
                         textAlign = TextAlign.Center,
                     )
 
-                    val products = getProductsByCategoryId(category.id)
+                    item.products.forEach{ product ->
-
-                    products.forEach{ product ->
                         Card(
                             shape = RoundedCornerShape(20.dp),
                             border = BorderStroke(3.dp, Color(222,161,69)),
@@ -95,7 +114,7 @@ fun MenuCard(){
                                 verticalAlignment = Alignment.CenterVertically,
                                 horizontalArrangement = Arrangement.SpaceEvenly,
                             ){
-                                if (product.picture == "Бургер"){
+                                if (item.category.name == "Бургеры"){
                                     Image(
                                         painterResource(
                                             id = R.drawable.burger
@@ -106,7 +125,7 @@ fun MenuCard(){
                                             .padding(5.dp),
                                     )
                                 }
-                                if (product.picture == "Картошка"){
+                                if (item.category.name == "Картошка"){
                                     Image(
                                         painterResource(
                                             id = R.drawable.potato
@@ -117,7 +136,7 @@ fun MenuCard(){
                                             .padding(5.dp),
                                     )
                                 }
-                                if (product.picture == "Пепси"){
+                                if (item.category.name == "Напитки"){
                                     Image(
                                         painterResource(
                                             id = R.drawable.pepsi
@@ -134,7 +153,7 @@ fun MenuCard(){
                                     verticalArrangement = Arrangement.SpaceAround
                                 ) {
                                     Text(
-                                        text = product.title,
+                                        text = product.name,
                                         color = Color.Black,
                                         fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                                         fontSize = 17.sp,

app/src/main/java/com/example/mobileapp/screens/OrderScreen.kt

@@ -1,5 +1,6 @@
 package com.example.mobileapp.screens
 
+import android.annotation.SuppressLint
 import androidx.compose.foundation.BorderStroke
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
@@ -17,20 +18,27 @@ import androidx.compose.material3.Card
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 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.font.Font
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.example.mobileapp.R
-import com.example.mobileapp.models.currentUser
+import com.example.mobileapp.db.AppDatabase
-import com.example.mobileapp.models.getOrderProductsByOrderId
+import com.example.mobileapp.models.Order
-import com.example.mobileapp.models.getOrdersByUserId
+import com.example.mobileapp.models.OrderWithProducts
-import com.example.mobileapp.models.getProductById
 import com.example.mobileapp.widgets.Header
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
 @Composable
 fun OrderScreen(){
@@ -43,6 +51,7 @@ fun OrderScreen(){
     }
 }
 
+@SuppressLint("CoroutineCreationDuringComposition")
 @Composable
 fun OrderCard(){
     Column(
@@ -71,14 +80,29 @@ fun OrderCard(){
                 textAlign = TextAlign.Center,
             )
 
-            val orders = getOrdersByUserId(currentUser().id)
+            val ordersWithProducts = remember { mutableListOf<OrderWithProducts> () }
+            val context = LocalContext.current
+            val scope = rememberCoroutineScope()
+
+            LaunchedEffect(Unit) {
+                withContext(Dispatchers.IO) {
+                    AppDatabase.getInstance(context).orderDao().getOrdersToWork().collect { data ->
+                        ordersWithProducts.addAll(data)
+                    }
+                }
+            }
 
             LazyColumn(
                 modifier = Modifier
                     .fillMaxWidth()
             ) {
-                items(orders){ order ->
+                items(ordersWithProducts){ order ->
-                    val orderProducts = getOrderProductsByOrderId(order.id)
+                    val status = remember { mutableStateOf("")}
+                    scope.launch {
+                        AppDatabase.getInstance(context).statusDao().getById(order.order.statusId).collect { data ->
+                            status.value = data.name
+                        }
+                    }
                     Card(
                         shape = RoundedCornerShape(20.dp),
                         border = BorderStroke(3.dp, Color(222,161,69)),
@@ -93,7 +117,7 @@ fun OrderCard(){
                             horizontalArrangement = Arrangement.SpaceEvenly,
                         ){
                             Text(
-                                text = "№" + order.id.toString(),
+                                text = "№" + order.order.id,
                                 color = Color.Black,
                                 fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                                 fontSize = 34.sp,
@@ -101,7 +125,7 @@ fun OrderCard(){
                             )
 
                             Text(
-                                text = "Статус: " + order.status,
+                                text = "Статус: " + status,
                                 color = Color.Black,
                                 fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                                 fontSize = 20.sp,
@@ -117,7 +141,7 @@ fun OrderCard(){
                             horizontalArrangement = Arrangement.SpaceAround,
                         ){
                             Column {
-                                orderProducts.forEach{ orderProduct ->
+                                order.orderWithProducts.forEach{ orderProduct ->
                                     Row(
                                         modifier = Modifier
                                             .background(Color.White),
@@ -125,7 +149,7 @@ fun OrderCard(){
                                         horizontalArrangement = Arrangement.Center,
                                     ){
                                         Text(
-                                            text = getProductById(orderProduct.productId).title + " x" + orderProduct.amount.toString(),
+                                            text = orderProduct.product.name + " x" + orderProduct.orderProduct.amount.toString(),
                                             color = Color.Gray,
                                             fontFamily = FontFamily(Font(R.font.nunito_bold)),
                                             fontSize = 20.sp,
@@ -134,7 +158,7 @@ fun OrderCard(){
                                     }
                                 }
                             }
-
+                            if (order.order.statusId == 2){
                                 OutlinedButton(
                                     onClick = {
                                         /*TODO*/
@@ -151,6 +175,24 @@ fun OrderCard(){
                                     )
                                 }
                             }
+                            if (order.order.statusId == 3){
+                                OutlinedButton(
+                                    onClick = {
+                                        /*TODO*/
+                                    },
+                                    border = BorderStroke(4.dp, Color(222,161,69)),
+                                    shape = RoundedCornerShape(20.dp),
+                                    colors = ButtonDefaults.outlinedButtonColors(Color(255,186,83)),
+                                ) {
+                                    Text(
+                                        text = "Выдать",
+                                        fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
+                                        fontSize = 30.sp,
+                                        color = Color.White
+                                    )
+                                }
+                            }
+                        }
                     }
                 }
             }

app/src/main/java/com/example/mobileapp/screens/ProfileScreen.kt

@@ -1,5 +1,6 @@
 package com.example.mobileapp.screens
 
+import android.annotation.SuppressLint
 import androidx.compose.foundation.BorderStroke
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
@@ -17,9 +18,14 @@ import androidx.compose.material3.Card
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 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.font.Font
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.style.TextAlign
@@ -27,12 +33,13 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.navigation.NavController
 import com.example.mobileapp.R
-import com.example.mobileapp.models.currentUser
+import com.example.mobileapp.db.AppDatabase
-import com.example.mobileapp.models.getOrderProductsByOrderId
+import com.example.mobileapp.models.OrderWithProducts
-import com.example.mobileapp.models.getOrdersByUserId
-import com.example.mobileapp.models.getProductById
 import com.example.mobileapp.navigation.Screens
 import com.example.mobileapp.widgets.Header
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
 @Composable
 fun ProfileScreen(navController: NavController){
@@ -45,6 +52,7 @@ fun ProfileScreen(navController: NavController){
     }
 }
 
+@SuppressLint("CoroutineCreationDuringComposition")
 @Composable
 fun ProfileCard(navController: NavController){
     Column(
@@ -95,14 +103,23 @@ fun ProfileCard(navController: NavController){
                 textAlign = TextAlign.Center,
             )
 
-            val orders = getOrdersByUserId(currentUser().id)
+            val ordersWithProducts = remember { mutableListOf<OrderWithProducts> () }
+            val context = LocalContext.current
+            val scope = rememberCoroutineScope()
+
+            LaunchedEffect(Unit) {
+                withContext(Dispatchers.IO) {
+                    AppDatabase.getInstance(context).orderDao().getByUserId(1).collect { data ->
+                        ordersWithProducts.addAll(data)
+                    }
+                }
+            }
 
             LazyColumn(
                 modifier = Modifier
                     .fillMaxWidth()
             ) {
-                items(orders){ order ->
+                items(ordersWithProducts){ order ->
-                    val orderProducts = getOrderProductsByOrderId(order.id)
                     Card(
                         shape = RoundedCornerShape(20.dp),
                         border = BorderStroke(3.dp, Color(222,161,69)),
@@ -117,22 +134,27 @@ fun ProfileCard(navController: NavController){
                             horizontalArrangement = Arrangement.SpaceEvenly,
                         ){
                             Text(
-                                text = "№" + order.id.toString(),
+                                text = "№" + order.order.id.toString(),
                                 color = Color.Black,
                                 fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                                 fontSize = 34.sp,
                                 textAlign = TextAlign.Center,
                             )
-
+                            val status = remember { mutableStateOf("")}
+                            scope.launch {
+                                AppDatabase.getInstance(context).statusDao().getById(order.order.statusId).collect { data ->
+                                    status.value = data.name
+                                }
+                            }
                             Text(
-                                text = "Статус: " + order.status,
+                                text = "Статус: " + status.value,
                                 color = Color.Black,
                                 fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),
                                 fontSize = 20.sp,
                                 textAlign = TextAlign.Center,
                             )
                         }
-                        orderProducts.forEach{ orderProduct ->
+                        order.orderWithProducts.forEach{ orderProduct ->
                             Row(
                                 modifier = Modifier
                                     .fillMaxWidth()
@@ -141,7 +163,7 @@ fun ProfileCard(navController: NavController){
                                 horizontalArrangement = Arrangement.Center,
                             ){
                                 Text(
-                                    text = getProductById(orderProduct.productId).title + " " + getProductById(orderProduct.productId).price.toString() + "р. x" + orderProduct.amount.toString(),
+                                    text = orderProduct.product.name + " " + orderProduct.product.price.toString() + "р. x" + orderProduct.orderProduct.amount.toString(),
                                     color = Color.Gray,
                                     fontFamily = FontFamily(Font(R.font.nunito_bold)),
                                     fontSize = 20.sp,
@@ -157,7 +179,7 @@ fun ProfileCard(navController: NavController){
                             horizontalArrangement = Arrangement.Start,
                         ){
                             Text(
-                                text = "К оплате: " + order.price.toString() + " р.",
+                                text = "К оплате: " + order.order.price.toString() + " р.",
                                 modifier = Modifier.padding(start = 20.dp),
                                 color = Color.Black,
                                 fontFamily = FontFamily(Font(R.font.nunito_extrabold_italic)),

app/src/main/java/com/example/mobileapp/screens/UsersScreen.kt

@@ -1,5 +1,6 @@
 package com.example.mobileapp.screens
 
+import android.annotation.SuppressLint
 import androidx.compose.foundation.BorderStroke
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
@@ -28,13 +29,17 @@ import androidx.compose.material3.TextField
 import androidx.compose.material3.TextFieldDefaults
 import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 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.res.painterResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.Font
@@ -45,12 +50,12 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.example.mobileapp.R
-import com.example.mobileapp.models.currentUser
+import com.example.mobileapp.db.AppDatabase
-import com.example.mobileapp.models.getAllUsers
+import com.example.mobileapp.models.User
-import com.example.mobileapp.models.getCategories
-import com.example.mobileapp.models.getRoleById
-import com.example.mobileapp.models.getRoles
 import com.example.mobileapp.widgets.Header
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
 @Composable
 fun UsersScreen() {
@@ -63,7 +68,7 @@ fun UsersScreen() {
     }
 }
 
-@Preview
+@SuppressLint("CoroutineCreationDuringComposition")
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun UsersCard(){
@@ -92,7 +97,18 @@ fun UsersCard(){
                     .padding(top = 10.dp),
                 textAlign = TextAlign.Center,
             )
-            val users = getAllUsers()
+            val users = remember { mutableListOf<User> () }
+            val context = LocalContext.current
+            val scope = rememberCoroutineScope()
+            LaunchedEffect(Unit) {
+                withContext(Dispatchers.IO) {
+                    AppDatabase.getInstance(context).userDao().getAll().collect { data ->
+                        users.addAll(data)
+                    }
+                }
+            }
+
+
             LazyColumn(
                 modifier = Modifier
                     .fillMaxSize()
@@ -130,9 +146,18 @@ fun UsersCard(){
                                     border = BorderStroke(1.dp, Color(222,161,69)),
                                     modifier = Modifier.fillMaxWidth().padding(bottom = 10.dp),
                                 ){
-                                    val dataList = getRoles().map { it.title }
+                                    val roleList = remember { mutableStateListOf<String>() }
                                     var expanded by remember { mutableStateOf(false) }
-                                    var selectedItem by remember { mutableStateOf (dataList[0]) }
+                                    var selectedRole by remember { mutableStateOf("") }
+
+                                    scope.launch {
+                                        AppDatabase.getInstance(context).roleDao().getAll().collect { data ->
+                                            roleList.addAll(data.map {it.name})
+                                        }
+                                        AppDatabase.getInstance(context).roleDao().getById(user.roleId).collect { data ->
+                                            selectedRole = data.name
+                                        }
+                                    }
                                     MaterialTheme(
                                         colorScheme = lightColorScheme(
                                             surfaceVariant= Color.White,
@@ -150,7 +175,7 @@ fun UsersCard(){
                                                 modifier = Modifier
                                                     .menuAnchor().fillMaxWidth(),
                                                 readOnly = true,
-                                                value = selectedItem,
+                                                value = selectedRole,
                                                 onValueChange = {},
                                                 trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(expanded = expanded) },
                                             )
@@ -161,11 +186,11 @@ fun UsersCard(){
                                                     expanded = false
                                                 },
                                             ) {
-                                                dataList.forEach { selectionOption ->
+                                                roleList.forEach { selectionOption ->
                                                     DropdownMenuItem(
                                                         text = { Text(selectionOption) },
                                                         onClick = {
-                                                            selectedItem = selectionOption
+                                                            selectedRole = selectionOption
                                                             expanded = false
                                                         },
                                                         contentPadding = ExposedDropdownMenuDefaults.ItemContentPadding,