ref: blogposts

app/build.gradle.kts

@@ -89,6 +89,9 @@ base {
 
 dependencies {
     implementation(libs.androidx.material.icons.core)
+    implementation(libs.androidx.paging.common)
+    implementation(libs.androidx.paging.compose)
+    implementation(libs.androidx.paging.room)
     coreLibraryDesugaring(libs.desugar.jdk.libs)
 
     implementation(libs.androidx.core.ktx)

app/src/main/java/ru/sweetbread/unn/UNNApp.kt

@@ -10,6 +10,8 @@ import ru.sweetbread.unn.core.SessionManager
 import ru.sweetbread.unn.core.network.PortalApi
 import ru.sweetbread.unn.core.network.createHttpClient
 import ru.sweetbread.unn.db.AppDatabase
+import ru.sweetbread.unn.feature.news.NewsRepository
+import ru.sweetbread.unn.feature.profile.UserRepository
 import ru.sweetbread.unn.feature.schedule.ScheduleRepository
 import splitties.arch.room.roomDb
 
@@ -45,6 +47,16 @@ class AppContainer(context: Context) {
         fallbackToDestructiveMigration(dropAllTables = true)
     }
 
+    val userRepository = UserRepository(
+        portalApi,
+        database,
+    )
+    val newsRepository = NewsRepository(
+        portalApi,
+        database,
+        sessionManager,
+        userRepository
+    )
     val scheduleRepository = ScheduleRepository(
         api = portalApi,
         db = database,

app/src/main/java/ru/sweetbread/unn/core/db/NewsDao.kt

@@ -0,0 +1,30 @@
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
+
+package ru.sweetbread.unn.core.db
+
+import androidx.paging.PagingSource
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import kotlinx.coroutines.flow.Flow
+import ru.sweetbread.unn.core.db.entity.NewsDB
+
+@Dao
+interface NewsDao {
+    @Query("SELECT * FROM newsDB WHERE id = :id LIMIT 1")
+    suspend fun get(id: Int): NewsDB?
+
+    @Query("SELECT * FROM newsDB ORDER BY `publishedAt` DESC")
+    fun getFlow(): Flow<List<NewsDB>>
+
+    @Query("SELECT * FROM newsDB ORDER BY `publishedAt` DESC")
+    fun paging(): PagingSource<Int, NewsDB>
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insertAll(news: List<NewsDB>)
+
+    @Delete
+    suspend fun delete(unit: NewsDB)
+}

app/src/main/java/ru/sweetbread/unn/core/db/entity/News.kt

@@ -0,0 +1,33 @@
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
+
+package ru.sweetbread.unn.core.db.entity
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import ru.sweetbread.unn.feature.profile.UserRepository
+import ru.sweetbread.unn.model.News
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
+
+@Entity
+data class NewsDB(
+    @PrimaryKey val id: Int,
+    @ColumnInfo val publishedAt: String,
+    @ColumnInfo val content: String,
+    @ColumnInfo val authorId: Int
+)
+
+suspend fun NewsDB.toModel(userRepo: UserRepository): News = News(
+    id,
+    LocalDateTime.parse(publishedAt, DateTimeFormatter.ISO_DATE_TIME),
+    content,
+    userRepo.getByUserId(this.authorId),
+)
+
+fun News.toEntity(): NewsDB = NewsDB(
+    id,
+    publishedAt.format(DateTimeFormatter.ISO_DATE_TIME),
+    content,
+    author.userId
+)

app/src/main/java/ru/sweetbread/unn/core/db/entity/UserDB.kt

@@ -0,0 +1,65 @@
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
+
+package ru.sweetbread.unn.core.db.entity
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import io.ktor.util.reflect.instanceOf
+import ru.sweetbread.unn.api.AvatarSet
+import ru.sweetbread.unn.model.Student
+import ru.sweetbread.unn.model.Type
+import ru.sweetbread.unn.model.User
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
+
+@Entity
+data class UserDB(
+    @PrimaryKey val userId: Int,
+    @ColumnInfo val uns: Int?,
+    @ColumnInfo val group: String?,
+    @ColumnInfo val extId: Int?,
+    @ColumnInfo val type: Type,
+    @ColumnInfo val email: String,
+    @ColumnInfo val nameRu: String,
+    @ColumnInfo val nameEn: String,
+    @ColumnInfo val origAvatar: String,
+    @ColumnInfo val thumbAvatar: String,
+    @ColumnInfo val smallAvatar: String,
+    @ColumnInfo val updatedAt: String
+)
+
+fun User.toEntity(): UserDB = UserDB(
+    userId,
+    if (this.instanceOf(Student::class)) (this as Student).uns else null,
+    if (this.instanceOf(Student::class)) (this as Student).group else null,
+    null,
+    type,
+    email,
+    nameRu,
+    nameEn,
+    avatar.original,
+    avatar.thumbnail,
+    avatar.small,
+    LocalDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME)
+)
+
+fun UserDB.toModel(): User {
+    var user = User(
+        userId,
+        type,
+        email,
+        nameRu,
+        nameEn,
+        AvatarSet(
+            origAvatar,
+            thumbAvatar,
+            smallAvatar
+        )
+    )
+
+//    if (type == Type.student)
+//        user = Student(uns!!, user, group!!)
+
+    return user
+}

app/src/main/java/ru/sweetbread/unn/core/network/PortalAPI.kt

@@ -29,7 +29,7 @@ class PortalApi (
                 LoginResult.InvalidCredentials
             } else {
                 session.update(
-                    user = bitrix.getCurrentProfile(),
+                    user = bitrix.getCurrentUser(),
                     sessionId = id,
                     uns = login.drop(1).toInt()
                 )

app/src/main/java/ru/sweetbread/unn/core/network/endpoints.kt

@@ -19,6 +19,7 @@ import ru.sweetbread.unn.api.Lecturer
 import ru.sweetbread.unn.api.LecturerRank
 import ru.sweetbread.unn.api.ScheduleUnit
 import ru.sweetbread.unn.core.SessionManager
+import ru.sweetbread.unn.model.NewsDto
 import ru.sweetbread.unn.model.User
 import java.time.LocalDate
 import java.time.LocalDateTime
@@ -67,9 +68,10 @@ class Auth (
 
 
 /**
- * Bitrix addon for universities
- *
+ * Bitrix addon for universities.
  * Here are schedules, students and lecturers, auditorium and building
+ *
+ * РУЗ - расписание учебных занятий
  */
 class Ruzapi(
     val client: HttpClient,
@@ -181,10 +183,23 @@ class Bitrix(
     val client: HttpClient,
     val session: SessionManager
 ) {
-    suspend fun getCurrentProfile(): User {
+    suspend fun getCurrentUser(): User {
         val r = client.get("$vuzapiURL/profile/current")
+        return User.fromProfile(JSONObject(r.bodyAsText()))
+    }
+
+    suspend fun getUserByID(userId: Int): User {
+        val r = client.get("$vuzapiURL/user/$userId")
         return User(JSONObject(r.bodyAsText()))
     }
+
+    suspend fun getNews(page: Int = 1, amount: Int = 20): ArrayList<NewsDto> {
+        val r = client.get("$prtl2URL/news_.php") {
+            parameter("numpage", page)
+            parameter("perpage", amount)
+        }
+        return NewsDto.fromJsonArray(JSONArray(r.bodyAsText()))
+    }
 }
 
 //suspend fun getId(login: String): Int {

app/src/main/java/ru/sweetbread/unn/db/DB.kt

@@ -4,6 +4,9 @@ package ru.sweetbread.unn.db
 
 import androidx.room.Database
 import androidx.room.RoomDatabase
+import ru.sweetbread.unn.core.db.NewsDao
+import ru.sweetbread.unn.core.db.entity.NewsDB
+import ru.sweetbread.unn.core.db.entity.UserDB
 
 @Database(entities = [
     UserDB::class,
@@ -12,7 +15,9 @@ import androidx.room.RoomDatabase
     DisciplineDB::class,
     KindOfWorkDB::class,
     LecturerDB::class,
-    ScheduleUnitDB::class], version = 2)
+    ScheduleUnitDB::class,
+    NewsDB::class
+], version = 3)
 abstract class AppDatabase : RoomDatabase() {
     abstract fun userDao(): UserDao
     abstract fun scheduleDao(): ScheduleItemDao
@@ -21,4 +26,5 @@ abstract class AppDatabase : RoomDatabase() {
     abstract fun disciplineDao(): DisciplineDao
     abstract fun kindOfWorkDao(): KindOfWorkDao
     abstract fun lecturerDao(): LecturerDao
+    abstract fun newsDao(): NewsDao
 }

app/src/main/java/ru/sweetbread/unn/db/UserDB.kt

@@ -2,38 +2,19 @@
 
 package ru.sweetbread.unn.db
 
-import androidx.room.ColumnInfo
 import androidx.room.Dao
 import androidx.room.Delete
-import androidx.room.Entity
 import androidx.room.Insert
-import androidx.room.PrimaryKey
 import androidx.room.Query
-import ru.sweetbread.unn.model.Type
-
-@Entity
-data class UserDB(
-    @PrimaryKey val userId: Int,
-    @ColumnInfo val unnId: Int?,
-    @ColumnInfo val type: Type,
-    @ColumnInfo val email: String,
-    @ColumnInfo val nameRu: String,
-    @ColumnInfo val nameEn: String,
-    @ColumnInfo val isMale: Boolean,
-    @ColumnInfo val birthday: String,
-    @ColumnInfo val origAvatar: String,
-    @ColumnInfo val thumbAvatar: String,
-    @ColumnInfo val smallAvatar: String,
-    @ColumnInfo val expiredAt: String
-)
+import ru.sweetbread.unn.core.db.entity.UserDB
 
 @Dao
 interface UserDao {
     @Query("SELECT * FROM userDB WHERE userId = :userId LIMIT 1")
-    fun getUserById(userId: Int): UserDB?
+    suspend fun get(userId: Int): UserDB?
 
     @Insert
-    fun insert(user: UserDB)
+    suspend fun insert(user: UserDB)
 
     @Delete
     fun delete(user: UserDB)

app/src/main/java/ru/sweetbread/unn/feature/news/News.kt

@@ -0,0 +1,317 @@
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
+
+package ru.sweetbread.unn.feature.news
+
+import android.graphics.drawable.Drawable
+import android.text.Html
+import android.text.method.LinkMovementMethod
+import android.text.util.Linkify
+import android.widget.TextView
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+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.draw.clip
+import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.text.font.FontStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.viewinterop.AndroidView
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.paging.compose.collectAsLazyPagingItems
+import androidx.paging.compose.itemKey
+import coil3.ImageLoader
+import coil3.asDrawable
+import coil3.compose.AsyncImage
+import coil3.request.ImageRequest
+import ru.sweetbread.unn.core.network.portalURL
+import ru.sweetbread.unn.model.News
+import ru.sweetbread.unn.model.User
+import java.time.format.DateTimeFormatter
+import java.time.format.FormatStyle
+
+
+//val defUser = User(
+//    null,
+//    123,
+//    Type.student,
+//    "cool.email@domain.com",
+//    "Джон Сигма Омегович",
+//    "Jon Sigma Omega",
+//    true,
+//    LocalDate.now(),
+//    AvatarSet(
+//        "https://upload.wikimedia.org/wikipedia/ru/thumb/9/94/%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg/500px-%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg",
+//        "https://upload.wikimedia.org/wikipedia/ru/thumb/9/94/%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg/500px-%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg",
+//        "https://upload.wikimedia.org/wikipedia/ru/thumb/9/94/%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg/500px-%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg"
+//    )
+//)
+//
+//
+@Composable
+fun Blogposts(viewModel: NewsViewModel = viewModel(factory = NewsViewModel.Factory)) {
+    val news = viewModel.news.collectAsLazyPagingItems()
+    var extended by remember { mutableIntStateOf(0) }
+
+    LazyColumn {
+        items(
+            count = news.itemCount,
+            key = news.itemKey { it.id }
+        ) {
+            news[it]?.let { post ->
+                PostItem(
+                    Modifier
+                        .padding(8.dp)
+                        .clip(RoundedCornerShape(16.dp))
+                        .background(MaterialTheme.colorScheme.secondaryContainer)
+                        .clickable {
+                            extended = if (extended == post.id) 0 else post.id
+                        },
+                    post = post,
+                    extended == post.id
+                )
+            }
+        }
+    }
+}
+
+@Composable
+fun UserItem(modifier: Modifier = Modifier, user: User, info: String? = null) {
+    Row(
+        modifier.padding(16.dp),
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.SpaceBetween
+    ) {
+        AsyncImage(
+            modifier = Modifier
+                .padding(end = 8.dp)
+                .size(48.dp)
+                .clip(RoundedCornerShape(50)),
+            model = portalURL + user.avatar.thumbnail,
+            contentDescription = user.nameEn
+        )
+
+        Column {
+            Text(user.nameRu, fontWeight = FontWeight.Bold)
+            if (!info.isNullOrBlank())
+                Text(
+                    text = info,
+                    fontStyle = FontStyle.Italic,
+                    fontSize = MaterialTheme.typography.labelLarge.fontSize
+                )
+        }
+    }
+}
+
+@Composable
+fun PostItem(modifier: Modifier = Modifier, post: News, extended: Boolean = false) {
+    var html: String by remember { mutableStateOf("") }
+
+
+    LaunchedEffect(post) {
+        html = post.content
+    }
+
+    Column(modifier.padding(16.dp)) {
+        UserItem(user = post.author)
+
+        val textColor = MaterialTheme.colorScheme.onBackground.toArgb()
+        val linkColor = MaterialTheme.colorScheme.primary.toArgb()
+
+        AndroidView(
+            modifier = Modifier,
+            factory = {
+                TextView(it).apply {
+                    movementMethod = LinkMovementMethod.getInstance()
+                    autoLinkMask = Linkify.WEB_URLS
+                    linksClickable = true
+                    setTextColor(textColor)
+                    setLinkTextColor(linkColor)
+                }
+            },
+            update = {
+                it.maxLines = if (extended) Int.MAX_VALUE else 5
+                it.text = Html.fromHtml(
+                    html,
+                    Html.FROM_HTML_MODE_LEGACY,
+                    CoilImageGetter(it),
+                    null
+                )
+            }
+        )
+
+        HorizontalDivider(
+            modifier = Modifier.padding(vertical = 16.dp),
+            thickness = 1.dp,
+            color = MaterialTheme.colorScheme.onBackground
+        )
+
+        Text(text = post.publishedAt.format(
+            DateTimeFormatter.ofLocalizedDateTime(FormatStyle.MEDIUM)
+        ))
+    }
+}
+//
+//
+//@Preview
+//@Composable
+//fun UserItemPreview() {
+//    UNNTheme {
+//        Surface {
+//            UserItem(
+//                Modifier
+//                    .width(300.dp)
+//                    .clip(RoundedCornerShape(8.dp))
+//                    .background(MaterialTheme.colorScheme.primaryContainer),
+//                defUser,
+//                Type.student.s
+//            )
+//        }
+//    }
+//}
+//
+//@Preview
+//@Composable
+//fun PostItemPreview() {
+//    val post = Post(
+//        id = 154923,
+//        authorId = 165945,
+//        enableComments = true,
+//        numComments = 0,
+//        date = LocalDateTime.of(2024, 3, 20, 18, 55, 20),
+//        content = stringResource(id = R.string.lorem)
+//    )
+//
+//    UNNTheme {
+//        Surface {
+//            PostItem(
+//                Modifier
+//                    .clip(RoundedCornerShape(8.dp))
+//                    .background(MaterialTheme.colorScheme.primaryContainer), post
+//            )
+//        }
+//    }
+//}
+
+
+class CoilImageGetter(
+    private val textView: TextView,
+    private val maxImageWidth: Int = textView.width
+) : Html.ImageGetter {
+
+    override fun getDrawable(source: String): Drawable {
+        val urlDrawable = UrlDrawable()
+
+        if (maxImageWidth <= 0) {
+            textView.post {
+                updateImage(
+                    source,
+                    urlDrawable,
+                    textView.width
+                )
+            }
+        } else {
+            updateImage(
+                source,
+                urlDrawable,
+                maxImageWidth
+            )
+        }
+
+        return urlDrawable
+    }
+
+    private fun updateImage(
+        source: String,
+        urlDrawable: UrlDrawable,
+        maxWidth: Int
+    ) {
+        val imageLoader =
+            ImageLoader.Builder(textView.context)
+                .build()
+
+        val request =
+            ImageRequest.Builder(textView.context)
+                .data(source)
+                .target { image ->
+                    val drawable =
+                        image.asDrawable(
+                            textView.resources
+                        )
+
+                    val (width, height) =
+                        calculateScaledSize(
+                            drawable.intrinsicWidth,
+                            drawable.intrinsicHeight,
+                            maxWidth
+                        )
+
+                    drawable.setBounds(
+                        0, 0,
+                        width, height
+                    )
+
+                    urlDrawable.drawable = drawable
+
+                    urlDrawable.setBounds(
+                        0, 0,
+                        width, height
+                    )
+
+                    // заставляем TextView заново нарисовать
+                    textView.text = textView.text
+                }
+                .build()
+
+        imageLoader.enqueue(request)
+    }
+
+    private fun calculateScaledSize(
+        originalWidth: Int,
+        originalHeight: Int,
+        maxWidth: Int
+    ): Pair<Int, Int> {
+        if (originalWidth <= maxWidth) {
+            return originalWidth to originalHeight
+        }
+
+        val ratio =
+            maxWidth.toFloat() / originalWidth
+
+        return maxWidth to
+                (originalHeight * ratio).toInt()
+    }
+}
+
+class UrlDrawable() : Drawable() {
+    var drawable: Drawable? = null
+        set(value) {
+            field = value
+            invalidateSelf()
+        }
+
+    override fun draw(canvas: android.graphics.Canvas) {
+        drawable?.draw(canvas)
+    }
+
+    override fun setAlpha(alpha: Int) {}
+    override fun setColorFilter(colorFilter: android.graphics.ColorFilter?) {}
+    override fun getOpacity(): Int = android.graphics.PixelFormat.TRANSLUCENT
+}

app/src/main/java/ru/sweetbread/unn/feature/news/NewsRemoteMediator.kt

@@ -0,0 +1,89 @@
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
+
+package ru.sweetbread.unn.feature.news
+
+import android.net.http.HttpException
+import android.os.Build
+import androidx.annotation.RequiresExtension
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.LoadType
+import androidx.paging.PagingState
+import androidx.paging.RemoteMediator
+import androidx.room.withTransaction
+import kotlinx.io.IOException
+import ru.sweetbread.unn.core.db.entity.NewsDB
+import ru.sweetbread.unn.core.db.entity.toEntity
+import ru.sweetbread.unn.core.network.PortalApi
+import ru.sweetbread.unn.db.AppDatabase
+import ru.sweetbread.unn.feature.profile.UserRepository
+import ru.sweetbread.unn.model.News
+
+
+@OptIn(ExperimentalPagingApi::class)
+class NewsRemoteMediator(
+    private val db: AppDatabase,
+    private val api: PortalApi,
+    private val userRepo: UserRepository
+) : RemoteMediator<Int, NewsDB>() {
+    private var nextPage = 1
+
+    @RequiresExtension(extension = Build.VERSION_CODES.S, version = 7)
+    @OptIn(ExperimentalPagingApi::class)
+    override suspend fun load(
+        loadType: LoadType,
+        state: PagingState<Int, NewsDB>
+    ): MediatorResult {
+        val page = when (loadType) {
+            LoadType.REFRESH -> {
+                nextPage = 1
+                1
+            }
+
+            LoadType.PREPEND -> {
+                return MediatorResult.Success(
+                    endOfPaginationReached = true
+                )
+            }
+
+            LoadType.APPEND -> { nextPage }
+        }
+
+        return try {
+            val response = api.bitrix.getNews(page)
+
+            val news = response.map { dto ->
+
+                val author = userRepo.getByUserId(dto.authorId)
+
+                News(
+                    dto.id,
+                    dto.publishedAt,
+                    dto.content,
+                    author
+                )
+            }
+
+            db.withTransaction {
+//                if (loadType == LoadType.REFRESH) {
+//                    db.newsDao().clear()
+//                }
+
+                db.newsDao().insertAll(
+                    news.map { it.toEntity() }
+                )
+            }
+
+            nextPage = page + 1
+
+            MediatorResult.Success(
+                endOfPaginationReached =
+                    news.size < 20
+            )
+
+        } catch (e: IOException) {
+            MediatorResult.Error(e)
+        } catch (e: HttpException) {
+            MediatorResult.Error(e)
+        }
+    }
+}

app/src/main/java/ru/sweetbread/unn/feature/news/NewsRepository.kt

@@ -0,0 +1,48 @@
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
+
+package ru.sweetbread.unn.feature.news
+
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import androidx.paging.PagingData
+import androidx.paging.map
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import ru.sweetbread.unn.core.SessionManager
+import ru.sweetbread.unn.core.db.entity.toModel
+import ru.sweetbread.unn.core.network.PortalApi
+import ru.sweetbread.unn.db.AppDatabase
+import ru.sweetbread.unn.feature.profile.UserRepository
+import ru.sweetbread.unn.model.News
+
+class NewsRepository (
+    val api: PortalApi,
+    val db: AppDatabase,
+    val session: SessionManager,
+    val userRepository: UserRepository
+) {
+    @OptIn(ExperimentalPagingApi::class)
+    fun getNews(): Flow<PagingData<News>> = Pager(
+        config = PagingConfig(
+            pageSize = 20,
+            initialLoadSize = 20,
+            prefetchDistance = 10,
+            enablePlaceholders = false
+        ),
+        remoteMediator = NewsRemoteMediator(
+            db,
+            api,
+            userRepository
+        ),
+        pagingSourceFactory = {
+            db.newsDao().paging()
+        }
+    )
+        .flow
+        .map { pagingData ->
+            pagingData.map { entity ->
+                entity.toModel(userRepository)
+            }
+        }
+}

app/src/main/java/ru/sweetbread/unn/feature/news/NewsViewModel.kt

@@ -0,0 +1,33 @@
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
+
+package ru.sweetbread.unn.feature.news
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.viewModelScope
+import androidx.lifecycle.viewmodel.initializer
+import androidx.lifecycle.viewmodel.viewModelFactory
+import androidx.paging.cachedIn
+import ru.sweetbread.unn.UNNApp
+
+class NewsViewModel(
+    repository: NewsRepository
+) : ViewModel() {
+    val news = repository
+        .getNews()
+        .cachedIn(viewModelScope)
+
+    companion object {
+        val Factory = viewModelFactory {
+            initializer {
+                val application = checkNotNull(
+                    this[ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY]
+                ) as UNNApp
+
+                NewsViewModel(
+                    repository = application.container.newsRepository
+                )
+            }
+        }
+    }
+}

app/src/main/java/ru/sweetbread/unn/feature/profile/UserRepository.kt

@@ -0,0 +1,28 @@
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
+
+package ru.sweetbread.unn.feature.profile
+
+import android.util.Log
+import ru.sweetbread.unn.core.db.entity.toEntity
+import ru.sweetbread.unn.core.db.entity.toModel
+import ru.sweetbread.unn.core.network.PortalApi
+import ru.sweetbread.unn.db.AppDatabase
+import ru.sweetbread.unn.model.User
+
+class UserRepository (
+    val api: PortalApi,
+    val db: AppDatabase,
+) {
+    suspend fun getByUserId(id: Int): User {
+        if (id == 0) return User.getPlaceholder()
+
+        val fromDb = db.userDao().get(id)
+        if (fromDb == null) {
+            Log.d("user", "id: $id")
+            val fromApi = api.bitrix.getUserByID(id)
+            db.userDao().insert(fromApi.toEntity())
+            return fromApi
+        }
+        return fromDb.toModel()
+    }
+}

app/src/main/java/ru/sweetbread/unn/model/News.kt

@@ -0,0 +1,60 @@
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
+
+package ru.sweetbread.unn.model
+
+import org.json.JSONArray
+import org.json.JSONObject
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
+
+
+class News (
+    val id: Int,
+    val publishedAt: LocalDateTime,
+    val content: String,
+    val author: User
+)
+
+class NewsDto (
+    val id: Int,
+    val publishedAt: LocalDateTime,
+    val content: String,
+    val authorId: Int,
+    val authorLogin: String
+//    val comments: ArrayList<NewsComment>,
+//    val important: Boolean,
+//    val pinned: Boolean
+) {
+    constructor(json: JSONObject) : this (
+        json.getString("id").toInt(),
+        LocalDateTime.parse(
+            json.getString("time"),
+            DateTimeFormatter.ofPattern("dd.MM.yyyy HH:mm:ss")
+        ),
+        json.getString("fulltext"),
+        json.getJSONObject("author").getString("user_id").toInt(),
+        json.getJSONObject("author").getString("login")
+//        NewsComment.fromJsonArray(json.getJSONArray("comments")),
+//        json.getBoolean("important"),
+//        json.getBoolean("pinned")
+    )
+
+    companion object {
+        fun fromJsonArray(arr: JSONArray): ArrayList<NewsDto> {
+            val out: ArrayList<NewsDto> = arrayListOf()
+            for (i in 0 until arr.length()) {
+                out.add(NewsDto(arr.getJSONObject(i)))
+            }
+            return out
+        }
+    }
+}
+
+
+//class NewsComment() {
+//    companion object {
+//        fun fromJsonArray(json: JSONArray): ArrayList<NewsComment> {
+//
+//        }
+//    }
+//}

app/src/main/java/ru/sweetbread/unn/model/User.kt

@@ -6,47 +6,39 @@ import org.json.JSONObject
 import ru.sweetbread.unn.R
 import ru.sweetbread.unn.api.AvatarSet
 import splitties.resources.appStr
-import java.time.Instant
-import java.time.LocalDate
-import java.time.ZoneId
 
 enum class Type(val s: String) {
     student(appStr(R.string.student)),
-    group("group"),
+    // group("group"),
     lecturer(appStr(R.string.lecturer)),
-    auditorium("auditorium"),
+    // auditorium("auditorium"),
     employee(appStr(R.string.employee))
 }
 
-class User(
-//    val unnId: Int?,
-//    val userId: Int,
-    val bx_id: Int?,  // Bitrix user ID
-    val ra_id: Int?,  // ruzapi ID (for schedule)
-    val type: Type,
-    val email: String,
-    val nameRu: String,
-    val nameEn: String,
-    val isMale: Boolean,
-    val birthday: LocalDate,
-    val avatar: AvatarSet
+open class User(
+    open val userId: Int,     // vuzapi ID
+    // val bxId: Int,      // Bitrix user ID
+    // val raId: Int?,     // ruzapi ID (for schedule)
+    open val type: Type,
+    open val email: String,
+    open val nameRu: String,
+    open val nameEn: String,
+    open val avatar: AvatarSet
 ) {
-    constructor(json: JSONObject) : this (
-        json.getInt("bitrix_id"),
-        null,
-        when (json.getString("type")) {
+    constructor(json: JSONObject) : this(
+        json.getInt("id"),
+        when (
+            json.getJSONArray("profiles")
+                .getJSONObject(0)
+                .getString("type")
+        ) {
             "student" -> Type.student
             else -> Type.employee
         },
-        json.getJSONObject("user").getString("email"),
-        json.getJSONObject("user").getString("fullname"),
-        json.getJSONObject("user").getString("fullname_en"),
-        json.getJSONObject("user").getString("sex") == "M",
-        Instant
-            .parse(json.getJSONObject("user").getString("birthdate"))
-            .atZone(ZoneId.of("Europe/Moscow"))
-            .toLocalDate(),
-        json.getJSONObject("user").getJSONObject("photo").let {
+        json.getString("email"),
+        json.getString("fullname"),
+        json.getString("fullname_en"),
+        json.getJSONObject("photo").let {
             AvatarSet(
                 it.getString("orig"),
                 it.getString("thumbnail"),
@@ -54,4 +46,65 @@ class User(
             )
         }
     )
+
+    companion object {
+        fun fromProfile(json: JSONObject): User {
+            val user = json.getJSONObject("user")
+            return User(
+                user.getInt("id"),
+                when (json.getString("type")) {
+                    "student" -> Type.student
+                    else -> Type.employee
+                },
+                user.getString("email"),
+                user.getString("fullname"),
+                user.getString("fullname_en"),
+                user.getJSONObject("photo").let {
+                    AvatarSet(
+                        it.getString("orig"),
+                        it.getString("thumbnail"),
+                        it.getString("small"),
+                    )
+                }
+            )
+        }
+
+        fun getPlaceholder() = User(
+            0,
+            Type.employee,
+            "",
+            "Удалённый пользователь",
+            "Deleted user",
+            AvatarSet("", "", "")
+        )
+    }
+}
+
+class Student(
+    val uns: Int?,
+    override val userId: Int,
+    override val type: Type,
+    override val email: String,
+    override val nameRu: String,
+    override val nameEn: String,
+    override val avatar: AvatarSet,
+    val group: String
+) : User (
+    userId,
+    type,
+    email,
+    nameRu,
+    nameEn,
+    avatar,
+) {
+    constructor(uns: Int? = null, user: User, group: String) : this (
+        uns,
+        user.userId,
+        user.type,
+        user.email,
+        user.nameRu,
+        user.nameEn,
+        user.avatar,
+        group
+    )
 }

app/src/main/java/ru/sweetbread/unn/ui/composes/Blogpost.kt

@@ -1,342 +0,0 @@
-// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
-
-package ru.sweetbread.unn.ui.composes
-
-//import android.graphics.drawable.Drawable
-//import android.text.Html
-//import android.text.method.LinkMovementMethod
-//import android.text.util.Linkify
-//import android.util.Log
-//import android.widget.TextView
-//import androidx.compose.foundation.background
-//import androidx.compose.foundation.clickable
-//import androidx.compose.foundation.layout.Arrangement
-//import androidx.compose.foundation.layout.Column
-//import androidx.compose.foundation.layout.Row
-//import androidx.compose.foundation.layout.fillMaxWidth
-//import androidx.compose.foundation.layout.padding
-//import androidx.compose.foundation.layout.size
-//import androidx.compose.foundation.layout.width
-//import androidx.compose.foundation.lazy.LazyColumn
-//import androidx.compose.foundation.lazy.items
-//import androidx.compose.foundation.shape.RoundedCornerShape
-//import androidx.compose.material3.HorizontalDivider
-//import androidx.compose.material3.LinearProgressIndicator
-//import androidx.compose.material3.MaterialTheme
-//import androidx.compose.material3.Surface
-//import androidx.compose.material3.Text
-//import androidx.compose.runtime.Composable
-//import androidx.compose.runtime.LaunchedEffect
-//import androidx.compose.runtime.NonRestartableComposable
-//import androidx.compose.runtime.collectAsState
-//import androidx.compose.runtime.getValue
-//import androidx.compose.runtime.mutableIntStateOf
-//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.draw.clip
-//import androidx.compose.ui.graphics.toArgb
-//import androidx.compose.ui.res.stringResource
-//import androidx.compose.ui.text.font.FontStyle
-//import androidx.compose.ui.text.font.FontWeight
-//import androidx.compose.ui.tooling.preview.Preview
-//import androidx.compose.ui.unit.dp
-//import androidx.compose.ui.viewinterop.AndroidView
-//import androidx.lifecycle.ViewModel
-//import androidx.lifecycle.viewmodel.compose.viewModel
-//import coil.ImageLoader
-//import coil.compose.AsyncImage
-//import coil.request.ImageRequest
-//import kotlinx.coroutines.flow.MutableStateFlow
-//import kotlinx.coroutines.flow.StateFlow
-//import kotlinx.coroutines.flow.asStateFlow
-//import ru.sweetbread.unn.R
-//import ru.sweetbread.unn.api.AvatarSet
-//import ru.sweetbread.unn.api.Post
-//import ru.sweetbread.unn.api.Type
-//import ru.sweetbread.unn.api.User
-//import ru.sweetbread.unn.core.network.getBlogposts
-//import ru.sweetbread.unn.core.network.getUserByBitrixId
-//import ru.sweetbread.unn.core.network.portalURL
-//import ru.sweetbread.unn.ui.theme.UNNTheme
-//import java.time.LocalDate
-//import java.time.LocalDateTime
-//import java.time.format.DateTimeFormatter
-//import java.time.format.FormatStyle
-//
-//
-//val defUser = User(
-//    null,
-//    123,
-//    Type.student,
-//    "cool.email@domain.com",
-//    "Джон Сигма Омегович",
-//    "Jon Sigma Omega",
-//    true,
-//    LocalDate.now(),
-//    AvatarSet(
-//        "https://upload.wikimedia.org/wikipedia/ru/thumb/9/94/%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg/500px-%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg",
-//        "https://upload.wikimedia.org/wikipedia/ru/thumb/9/94/%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg/500px-%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg",
-//        "https://upload.wikimedia.org/wikipedia/ru/thumb/9/94/%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg/500px-%D0%93%D0%B8%D0%B3%D0%B0%D1%87%D0%B0%D0%B4.jpg"
-//    )
-//)
-//
-//
-//@Composable
-//fun Blogposts(viewModel: PostViewModel = viewModel()) {
-//    val posts by viewModel.posts.collectAsState()
-//    var extended by remember { mutableIntStateOf(0) }
-//
-//    LaunchedEffect(Unit) {
-//        viewModel.loadPosts()
-//    }
-//
-//    if (posts.isNotEmpty()) {
-//        Log.d("Another fuck", posts.size.toString())
-//        LazyColumn {
-//            items(posts) {
-//                PostItem(
-//                    Modifier
-//                        .padding(8.dp)
-//                        .clip(RoundedCornerShape(16.dp))
-//                        .background(MaterialTheme.colorScheme.secondaryContainer)
-//                        .clickable {
-//                            extended = if (extended == it.id) 0 else it.id
-//                        },
-//                    post = it,
-//                    extended == it.id
-//                )
-//            }
-//        }
-//    } else {
-//        LinearProgressIndicator(
-//            modifier = Modifier
-//                .fillMaxWidth()
-//                .padding(8.dp),
-//            color = MaterialTheme.colorScheme.surfaceVariant,
-//            trackColor = MaterialTheme.colorScheme.secondary,
-//        )
-//    }
-//}
-//
-//
-//class PostRepository {
-//    suspend fun loadPosts(): List<Post> {
-//        return getBlogposts()
-//    }
-//}
-//
-//class PostViewModel : ViewModel() {
-//    private val repository = PostRepository()
-//    private val _posts = MutableStateFlow<List<Post>>(emptyList())
-//    val posts: StateFlow<List<Post>> = _posts.asStateFlow()
-//
-//    suspend fun loadPosts() {
-//        _posts.value = repository.loadPosts()
-//    }
-//}
-//
-//
-//@Composable
-//@NonRestartableComposable
-//fun UserItem(modifier: Modifier = Modifier, user: User, info: String? = null) {
-//    Row(
-//        modifier.padding(16.dp),
-//        verticalAlignment = Alignment.CenterVertically,
-//        horizontalArrangement = Arrangement.SpaceBetween
-//    ) {
-//        AsyncImage(
-//            modifier = Modifier
-//                .padding(end = 8.dp)
-//                .size(48.dp)
-//                .clip(RoundedCornerShape(50)),
-//            model = portalURL + user.avatar.thumbnail,
-//            contentDescription = user.nameEn
-//        )
-//
-//        Column {
-//            Text(user.nameRu, fontWeight = FontWeight.Bold)
-//            if (!info.isNullOrBlank())
-//                Text(
-//                    text = info,
-//                    fontStyle = FontStyle.Italic,
-//                    fontSize = MaterialTheme.typography.labelLarge.fontSize
-//                )
-//        }
-//    }
-//}
-//
-//@Composable
-//@NonRestartableComposable
-//fun PostItem(modifier: Modifier = Modifier, post: Post, extended: Boolean = false) {
-//    var user: User? by remember { mutableStateOf(null) }
-//    var html: String by remember { mutableStateOf("") }
-//
-//
-//    LaunchedEffect(post) {
-//        html = post.content
-//        user = getUserByBitrixId(post.authorId)
-//    }
-//
-//    Column(modifier.padding(16.dp)) {
-//        if (user != null)
-//            UserItem(user = user!!)
-//        else
-//            LinearProgressIndicator(
-//                modifier = Modifier
-//                    .fillMaxWidth()
-//                    .padding(horizontal = 8.dp, vertical = 38.dp),
-//                color = MaterialTheme.colorScheme.surfaceVariant,
-//                trackColor = MaterialTheme.colorScheme.secondary,
-//            )
-//
-//        val textColor = MaterialTheme.colorScheme.onBackground.toArgb()
-//        val linkColor = MaterialTheme.colorScheme.primary.toArgb()
-//
-//        AndroidView(
-//            modifier = Modifier,
-//            factory = {
-//                TextView(it).apply {
-//                    movementMethod = LinkMovementMethod.getInstance()
-//                    autoLinkMask = Linkify.WEB_URLS
-//                    linksClickable = true
-//                    setTextColor(textColor)
-//                    setLinkTextColor(linkColor)
-//                }
-//            },
-//            update = {
-//                it.maxLines = if (extended) Int.MAX_VALUE else 5
-//                it.text = Html.fromHtml(
-//                    html,
-//                    Html.FROM_HTML_MODE_LEGACY,
-//                    CoilImageGetter(it),
-//                    null
-//                )
-//            }
-//        )
-//
-//        HorizontalDivider(
-//            modifier = Modifier.padding(vertical = 16.dp),
-//            thickness = 1.dp,
-//            color = MaterialTheme.colorScheme.onBackground
-//        )
-//
-//        Text(text = post.date.format(DateTimeFormatter.ofLocalizedDateTime(FormatStyle.MEDIUM)))
-//    }
-//}
-//
-//
-//@Preview
-//@Composable
-//fun UserItemPreview() {
-//    UNNTheme {
-//        Surface {
-//            UserItem(
-//                Modifier
-//                    .width(300.dp)
-//                    .clip(RoundedCornerShape(8.dp))
-//                    .background(MaterialTheme.colorScheme.primaryContainer),
-//                defUser,
-//                Type.student.s
-//            )
-//        }
-//    }
-//}
-//
-//@Preview
-//@Composable
-//fun PostItemPreview() {
-//    val post = Post(
-//        id = 154923,
-//        authorId = 165945,
-//        enableComments = true,
-//        numComments = 0,
-//        date = LocalDateTime.of(2024, 3, 20, 18, 55, 20),
-//        content = stringResource(id = R.string.lorem)
-//    )
-//
-//    UNNTheme {
-//        Surface {
-//            PostItem(
-//                Modifier
-//                    .clip(RoundedCornerShape(8.dp))
-//                    .background(MaterialTheme.colorScheme.primaryContainer), post
-//            )
-//        }
-//    }
-//}
-//
-//
-//class CoilImageGetter(
-//    private val textView: TextView,
-//    private val maxImageWidth: Int = textView.width
-//) : Html.ImageGetter {
-//
-//    override fun getDrawable(source: String): Drawable {
-//        val urlDrawable = UrlDrawable()
-//
-//        if (maxImageWidth <= 0)
-//            textView.post { updateImage(source, urlDrawable, textView.width) }
-//        else
-//            updateImage(source, urlDrawable, maxImageWidth)
-//
-//        return urlDrawable
-//    }
-//
-//    private fun updateImage(source: String, urlDrawable: UrlDrawable, maxWidth: Int) {
-//        val imageLoader = ImageLoader.Builder(textView.context)
-//            .build()
-//
-//        val request = ImageRequest.Builder(textView.context)
-//            .data(source)
-//            .target { drawable ->
-//                val (scaledWidth, scaledHeight) = calculateScaledSize(
-//                    drawable.intrinsicWidth,
-//                    drawable.intrinsicHeight,
-//                    maxWidth
-//                )
-//
-//                drawable.setBounds(0, 0, scaledWidth, scaledHeight)
-//                urlDrawable.drawable = drawable
-//                urlDrawable.setBounds(0, 0, scaledWidth, scaledHeight)
-//
-//                textView.text = textView.text
-//            }
-//            .build()
-//
-//        imageLoader.enqueue(request)
-//    }
-//
-//    private fun calculateScaledSize(
-//        originalWidth: Int,
-//        originalHeight: Int,
-//        maxWidth: Int
-//    ): Pair<Int, Int> {
-//        if (originalWidth <= maxWidth)
-//            return Pair(originalWidth, originalHeight)
-//
-//        val ratio = maxWidth.toFloat() / originalWidth.toFloat()
-//        return Pair(
-//            maxWidth,
-//            (originalHeight * ratio).toInt()
-//        )
-//    }
-//}
-//
-//class UrlDrawable() : Drawable() {
-//    var drawable: Drawable? = null
-//        set(value) {
-//            field = value
-//            invalidateSelf()
-//        }
-//
-//    override fun draw(canvas: android.graphics.Canvas) {
-//        drawable?.draw(canvas)
-//    }
-//
-//    override fun setAlpha(alpha: Int) {}
-//    override fun setColorFilter(colorFilter: android.graphics.ColorFilter?) {}
-//    override fun getOpacity(): Int = android.graphics.PixelFormat.TRANSLUCENT
-//}

app/src/main/java/ru/sweetbread/unn/ui/layout/MainActivity.kt

@@ -62,6 +62,7 @@ import kotlinx.coroutines.launch
 import ru.sweetbread.unn.R
 import ru.sweetbread.unn.UNNApp
 import ru.sweetbread.unn.core.network.portalURL
+import ru.sweetbread.unn.feature.news.Blogposts
 import ru.sweetbread.unn.feature.schedule.Schedule
 import ru.sweetbread.unn.ui.composes.About
 import ru.sweetbread.unn.ui.theme.UNNTheme
@@ -175,8 +176,8 @@ class MainActivity : ComponentActivity() {
                             Box(Modifier.padding(innerPadding)) {
                                 NavHost(navController, startDestination = "journal/schedule") {
                                     composable("portal/blogposts") {
-                                        Text("Not implemented")
-//                                        Blogposts()
+//                                        Text("Not implemented")
+                                        Blogposts()
                                     }
                                     composable("journal/schedule") {
                                         Schedule()