feat: ViewModel in Schedule.kt

app/src/main/java/ru/sweetbread/unn/api/API.kt

@@ -1,4 +1,4 @@
-// Copyright (c) 2025 Gleb Zaharov. License: GPLv3 (see LICENSE).
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
 
 package ru.sweetbread.unn.api
 
@@ -66,11 +66,10 @@ private suspend fun getMyself(login: String) = coroutineScope {
 }
 
 suspend fun getScheduleDay(
+    date: LocalDate,
     type: Type = ME.type,
-    id: Int = ME.unnId!!,
-    date: LocalDate
-): ArrayList<ScheduleUnit> {
-
+    id: Int = ME.unnId!!
+): List<ScheduleUnit> {
     if ((type == ME.type) and (id == ME.unnId!!)) {
         val schedule = withContext(Dispatchers.IO) { loadSchedule(date) }
         Log.d("Schedule", schedule.joinToString())

app/src/main/java/ru/sweetbread/unn/api/endpoints.kt

@@ -1,4 +1,4 @@
-// Copyright (c) 2025 Gleb Zaharov. License: GPLv3 (see LICENSE).
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
 
 package ru.sweetbread.unn.api
 
@@ -116,6 +116,11 @@ suspend fun getUser(userId: Int? = null): User {
     )
 }
 
+/**
+ * Fetch schedule from Uni API
+ *
+ * @return [ArrayList] of all [ScheduleUnit]s between [start] and [finish]
+ */
 suspend fun downloadSchedule(
     type: Type = ME.type,
     id: Int = ME.unnId!!,

app/src/main/java/ru/sweetbread/unn/api/models.kt

@@ -1,4 +1,4 @@
-// Copyright (c) 2025 Gleb Zaharov. License: GPLv3 (see LICENSE).
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
 
 package ru.sweetbread.unn.api
 
@@ -29,7 +29,7 @@ class ScheduleUnit(
     val date: LocalDate,
     val discipline: Discipline,
     val kindOfWork: KindOfWork,
-    val lecturers: ArrayList<Lecturer>,
+    val lecturers: List<Lecturer>,
     val stream: String,
     val begin: LocalTime,
     val end: LocalTime

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

@@ -1,4 +1,4 @@
-// Copyright (c) 2025 Gleb Zaharov. License: GPLv3 (see LICENSE).
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
 
 package ru.sweetbread.unn.db
 
@@ -17,7 +17,7 @@ val cacheDb = roomDb<AppDatabase>(name = "cache") {
     DisciplineDB::class,
     KindOfWorkDB::class,
     LecturerDB::class,
-    ScheduleUnitDB::class], version = 1)
+    ScheduleUnitDB::class], version = 2)
 abstract class AppDatabase : RoomDatabase() {
     abstract fun userDao(): UserDao
     abstract fun scheduleDao(): ScheduleItemDao

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

@@ -1,8 +1,7 @@
-// Copyright (c) 2025 Gleb Zaharov. License: GPLv3 (see LICENSE).
+// Copyright (c) 2026 Gleb Zaharov. License: GPLv3 (see LICENSE).
 
 package ru.sweetbread.unn.db
 
-import android.util.Log
 import androidx.room.ColumnInfo
 import androidx.room.Dao
 import androidx.room.Delete
@@ -11,6 +10,7 @@ import androidx.room.Insert
 import androidx.room.OnConflictStrategy
 import androidx.room.PrimaryKey
 import androidx.room.Query
+import kotlinx.coroutines.flow.Flow
 import ru.sweetbread.unn.api.Auditorium
 import ru.sweetbread.unn.api.Building
 import ru.sweetbread.unn.api.Discipline
@@ -28,7 +28,7 @@ data class BuildingDB(
     @PrimaryKey val oid: Int,
     @ColumnInfo val name: String,
     @ColumnInfo val gid: Int,
-    @ColumnInfo val expiredAt: String
+    @ColumnInfo val updatedAt: String
 )
 
 @Dao
@@ -37,40 +37,15 @@ interface BuildingDao {
     fun get(oid: Int): BuildingDB?
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
-    fun insert(building: BuildingDB)
+    suspend fun insert(buildings: List<BuildingDB>)
 
     @Delete
     fun delete(building: BuildingDB)
 }
 
-fun cacheBuilding(building: Building) {
-    cacheDb.buildingDao().insert(
-        BuildingDB(
-            building.oid,
-            building.name,
-            building.gid,
-            LocalDateTime.now().plusMonths(1).format(DateTimeFormatter.ISO_DATE_TIME)
-        )
-    )
-}
+fun BuildingDB.toModel() = Building(name, gid, oid)
+fun Building.toEntity() = BuildingDB(oid, name, gid, LocalDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME))
 
-fun loadBuilding(oid: Int): Building? {
-    return cacheDb.buildingDao().get(oid)?.let {
-        if (LocalDateTime.parse(
-                it.expiredAt,
-                DateTimeFormatter.ISO_DATE_TIME
-            ) > LocalDateTime.now()
-        ) {
-            cacheDb.buildingDao().delete(it)
-            return null
-        }
-        Building(
-            it.name,
-            it.gid,
-            it.oid
-        )
-    }
-}
 
 @Entity
 data class AuditoriumDB(
@@ -78,7 +53,7 @@ data class AuditoriumDB(
     @ColumnInfo val name: String,
     @ColumnInfo val floor: Int?,
     @ColumnInfo val buildingOid: Int,
-    @ColumnInfo val expiredAt: String
+    @ColumnInfo val updatedAt: String
 )
 
 @Dao
@@ -87,43 +62,36 @@ interface AuditoriumDao {
     fun get(oid: Int): AuditoriumDB?
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
-    fun insert(auditorium: AuditoriumDB)
+    suspend fun insert(auditoriums: List<AuditoriumDB>)
 
     @Delete
     fun delete(auditorium: AuditoriumDB)
 }
 
-fun cacheAuditorium(auditorium: Auditorium) {
-    cacheBuilding(auditorium.building)
-    cacheDb.auditoriumDao().insert(
-        AuditoriumDB(
-            auditorium.oid,
-            auditorium.name,
-            auditorium.floor,
-            auditorium.building.oid,
-            LocalDateTime.now().plusMonths(1).format(DateTimeFormatter.ISO_DATE_TIME)
-        )
+fun AuditoriumDB.toModel(): Auditorium? {
+    return Auditorium(
+        name,
+        oid,
+        floor ?: 0,
+        cacheDb.buildingDao().get(buildingOid)?.toModel() ?: return null
     )
 }
+fun Auditorium.toEntity() = AuditoriumDB(
+    oid,
+    name,
+    floor,
+    building.oid,
+    LocalDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME)
+)
 
-fun loadAuditorium(oid: Int): Auditorium? {
-    return cacheDb.auditoriumDao().get(oid)?.let {
-        if (LocalDateTime.parse(
-                it.expiredAt,
-                DateTimeFormatter.ISO_DATE_TIME
-            ) > LocalDateTime.now()
-        ) {
-            cacheDb.auditoriumDao().delete(it)
-            return null
-        }
-        val building = loadBuilding(it.buildingOid) ?: return null
-        return Auditorium(
-            it.name,
-            it.oid,
-            it.floor ?: 0,
-            building
+suspend fun cacheAuditorium(auditoriums: List<Auditorium>) {
+    cacheDb.buildingDao().insert(
+        auditoriums.map { it.building }.map { it.toEntity() }
+    )
+
+    cacheDb.auditoriumDao().insert(
+        auditoriums.map { it.toEntity() }
     )
-    }
 }
 
 @Entity
@@ -131,7 +99,7 @@ data class DisciplineDB(
     @PrimaryKey val oid: Int,
     @ColumnInfo val name: String,
     @ColumnInfo val type: Int,
-    @ColumnInfo val expiredAt: String
+    @ColumnInfo val updatedAt: String
 )
 
 @Dao
@@ -140,41 +108,15 @@ interface DisciplineDao {
     fun get(oid: Int): DisciplineDB?
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
-    fun insert(discipline: DisciplineDB)
+    suspend fun insert(disciplines: List<DisciplineDB>)
 
     @Delete
     fun delete(discipline: DisciplineDB)
 }
 
-fun cacheDiscipline(discipline: Discipline) {
-    cacheDb.disciplineDao().insert(
-        DisciplineDB(
-            discipline.oid,
-            discipline.name,
-            discipline.type,
-            LocalDateTime.now().plusMonths(1).format(DateTimeFormatter.ISO_DATE_TIME)
-        )
-    )
-}
+fun DisciplineDB.toModel() = Discipline(name, oid, type)
+fun Discipline.toEntity() = DisciplineDB(oid, name, type, LocalDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME))
 
-fun loadDiscipline(oid: Int): Discipline? {
-    return cacheDb.disciplineDao().get(oid)?.let {
-        if (LocalDateTime.parse(
-                it.expiredAt,
-                DateTimeFormatter.ISO_DATE_TIME
-            ) > LocalDateTime.now()
-        ) {
-            cacheDb.disciplineDao().delete(it)
-            return null
-        }
-
-        return Discipline(
-            it.name,
-            it.oid,
-            it.type
-        )
-    }
-}
 
 @Entity
 data class KindOfWorkDB(
@@ -182,7 +124,7 @@ data class KindOfWorkDB(
     @ColumnInfo val name: String,
     @ColumnInfo val uid: String,
     @ColumnInfo val complexity: Int,
-    @ColumnInfo val expiredAt: String
+    @ColumnInfo val updatedAt: String
 )
 
 @Dao
@@ -191,43 +133,21 @@ interface KindOfWorkDao {
     fun get(oid: Int): KindOfWorkDB?
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
-    fun insert(kindOfWork: KindOfWorkDB)
+    suspend fun insert(kindOfWork: List<KindOfWorkDB>)
 
     @Delete
     fun delete(kindOfWork: KindOfWorkDB)
 }
 
-fun cacheKindOfWork(kindOfWork: KindOfWork) {
-    cacheDb.kindOfWorkDao().insert(
-        KindOfWorkDB(
-            kindOfWork.oid,
-            kindOfWork.name,
-            kindOfWork.uid,
-            kindOfWork.complexity,
-            LocalDateTime.now().plusMonths(1).format(DateTimeFormatter.ISO_DATE_TIME)
-        )
-    )
-}
+fun KindOfWorkDB.toModel() = KindOfWork(name, oid, uid, complexity)
+fun KindOfWork.toEntity() = KindOfWorkDB(
+    oid,
+    name,
+    uid,
+    complexity,
+    LocalDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME)
+)
 
-fun loadKindOfWork(oid: Int): KindOfWork? {
-    return cacheDb.kindOfWorkDao().get(oid)?.let {
-        if (LocalDateTime.parse(
-                it.expiredAt,
-                DateTimeFormatter.ISO_DATE_TIME
-            ) > LocalDateTime.now()
-        ) {
-            cacheDb.kindOfWorkDao().delete(it)
-            return null
-        }
-
-        return KindOfWork(
-            it.name,
-            it.oid,
-            it.uid,
-            it.complexity
-        )
-    }
-}
 
 @Entity
 data class LecturerDB(
@@ -236,7 +156,7 @@ data class LecturerDB(
     @ColumnInfo val rank: LecturerRank,
     @ColumnInfo val email: String,
     @ColumnInfo val uid: String,
-    @ColumnInfo val expiredAt: String
+    @ColumnInfo val updatedAt: String
 )
 
 @Dao
@@ -245,45 +165,22 @@ interface LecturerDao {
     fun get(unnId: Int): LecturerDB?
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
-    fun insert(lecturer: LecturerDB)
+    suspend fun insert(lecturers: List<LecturerDB>)
 
     @Delete
     fun delete(lecturer: LecturerDB)
 }
 
-fun cacheLecturer(lecturer: Lecturer) {
-    cacheDb.lecturerDao().insert(
-        LecturerDB(
-            lecturer.unnId,
-            lecturer.name,
-            lecturer.rank,
-            lecturer.email,
-            lecturer.uid,
-            LocalDateTime.now().plusMonths(1).format(DateTimeFormatter.ISO_DATE_TIME)
-        )
-    )
-}
+fun LecturerDB.toModel() = Lecturer(name, rank, email, unnId, uid)
+fun Lecturer.toEntity() = LecturerDB(
+    unnId,
+    name,
+    rank,
+    email,
+    uid,
+    LocalDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME)
+)
 
-fun loadLecturer(unnId: Int): Lecturer? {
-    return cacheDb.lecturerDao().get(unnId)?.let {
-        if (LocalDateTime.parse(
-                it.expiredAt,
-                DateTimeFormatter.ISO_DATE_TIME
-            ) > LocalDateTime.now()
-        ) {
-            cacheDb.lecturerDao().delete(it)
-            return null
-        }
-
-        return Lecturer(
-            it.name,
-            it.rank,
-            it.email,
-            it.unnId,
-            it.uid
-        )
-    }
-}
 
 @Entity
 data class ScheduleUnitDB(
@@ -296,9 +193,9 @@ data class ScheduleUnitDB(
     @ColumnInfo val auditoriumOid: Int,
     @ColumnInfo val disciplineOid: Int,
     @ColumnInfo val kindOfWorkOid: Int,
-    @ColumnInfo val lecturerId: Int,  // TODO: many-to-many
+    @ColumnInfo val lecturersId: String,
 
-    @ColumnInfo val expiredAt: String
+    @ColumnInfo val updatedAt: String
 )
 @Dao
 interface ScheduleItemDao {
@@ -308,78 +205,52 @@ interface ScheduleItemDao {
     @Query("SELECT * FROM scheduleUnitDB WHERE date = :date ORDER BY `begin`")
     fun getSchedule(date: String): List<ScheduleUnitDB>
 
+    @Query("SELECT * FROM scheduleUnitDB WHERE date = :date ORDER BY `begin`")
+    fun getScheduleFlow(date: String): Flow<List<ScheduleUnitDB>>
+
     @Insert(onConflict = OnConflictStrategy.REPLACE)
-    fun insert(user: ScheduleUnitDB)
+    suspend fun insert(units: List<ScheduleUnitDB>)
 
     @Delete
-    fun delete(user: ScheduleUnitDB)
+    fun delete(unit: ScheduleUnitDB)
+
+    @Query("DELETE FROM scheduleUnitDB WHERE date = :date")
+    fun deleteByDate(date: String)
 }
 
-fun cacheSchedule(item: ScheduleUnit) {
-    cacheAuditorium(item.auditorium)
-    cacheDiscipline(item.discipline)
-    cacheKindOfWork(item.kindOfWork)
-    cacheLecturer(item.lecturers[0])
-
-    cacheDb.scheduleDao().insert(
-        ScheduleUnitDB(
-            item.oid,
-            item.date.format(DateTimeFormatter.ISO_DATE),
-            item.stream,
-            item.begin.format(DateTimeFormatter.ISO_TIME),
-            item.end.format(DateTimeFormatter.ISO_TIME),
-            item.auditorium.oid,
-            item.discipline.oid,
-            item.kindOfWork.oid,
-            item.lecturers[0].unnId,
-            when {
-                (LocalDate.now() > item.date) -> LocalDateTime.now().plusWeeks(2)
-                (LocalDate.now().plusWeeks(1) > item.date) -> LocalDateTime.now().plusDays(1)
-                (LocalDate.now().plusWeeks(2) > item.date) -> LocalDateTime.now().plusWeeks(1)
-                else -> LocalDateTime.now().plusWeeks(2)
-            }.format(DateTimeFormatter.ISO_DATE_TIME)
-        )
-    )
-}
-
-fun cacheSchedule(items: ArrayList<ScheduleUnit>) {
-    for (item in items)
-        cacheSchedule(item)
-}
-
-fun loadSchedule(oid: Int): ScheduleUnit? {
-    cacheDb.scheduleDao().getSchedule(oid)?.let {
-        Log.d("load", it.oid.toString())
-        if (LocalDateTime.parse(
-                it.expiredAt,
-                DateTimeFormatter.ISO_DATE_TIME
-            ) < LocalDateTime.now()
-        ) {
-            Log.d("delete", it.oid.toString())
-            cacheDb.scheduleDao().delete(it)
-            return null
-        }
-
+fun ScheduleUnitDB.toModel(): ScheduleUnit? {
     return ScheduleUnit(
-            it.oid,
-            loadAuditorium(it.auditoriumOid) ?: return null,
-            LocalDate.parse(it.date, DateTimeFormatter.ISO_DATE),
-            loadDiscipline(it.disciplineOid) ?: return null,
-            loadKindOfWork(it.kindOfWorkOid) ?: return null,
-            arrayListOf(loadLecturer(it.lecturerId) ?: return null),
-            it.stream,
-            LocalTime.parse(it.begin, DateTimeFormatter.ISO_TIME),
-            LocalTime.parse(it.end, DateTimeFormatter.ISO_TIME)
+        oid,
+        cacheDb.auditoriumDao().get(auditoriumOid)?.toModel() ?: return null,
+        LocalDate.parse(date, DateTimeFormatter.ISO_DATE),
+        cacheDb.disciplineDao().get(disciplineOid)?.toModel() ?: return null,
+        cacheDb.kindOfWorkDao().get(kindOfWorkOid)?.toModel() ?: return null,
+        lecturersId.split(",").map { cacheDb.lecturerDao().get(it.toInt())?.toModel() ?: return null },
+        stream,
+        LocalTime.parse(begin, DateTimeFormatter.ISO_TIME),
+        LocalTime.parse(end, DateTimeFormatter.ISO_TIME)
     )
-    }
-    return null
 }
+fun ScheduleUnit.toEntity() = ScheduleUnitDB(
+    oid,
+    date.format(DateTimeFormatter.ISO_DATE),
+    stream,
+    begin.format(DateTimeFormatter.ISO_TIME),
+    end.format(DateTimeFormatter.ISO_TIME),
+    auditorium.oid,
+    discipline.oid,
+    kindOfWork.oid,
+    lecturers.map { it.unnId }.joinToString(","),
+    LocalDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME)
+)
 
-fun loadSchedule(date: LocalDate): ArrayList<ScheduleUnit> {
-    cacheDb.scheduleDao().getSchedule(date.format(DateTimeFormatter.ISO_DATE))
-        .map { Log.d("meow", "${it.oid}: ${loadSchedule(it.oid)}") }
-    return ArrayList(
-        cacheDb.scheduleDao().getSchedule(date.format(DateTimeFormatter.ISO_DATE))
-            .mapNotNull { loadSchedule(it.oid) }
-    )
+suspend fun cacheSchedule(units: List<ScheduleUnit>) {
+    cacheAuditorium(units.map { it.auditorium })
+    cacheDb.disciplineDao().insert(units.map { it.discipline.toEntity() })
+    cacheDb.kindOfWorkDao().insert(units.map { it.kindOfWork.toEntity() })
+    cacheDb.lecturerDao().insert(units.flatMap { it.lecturers }.map { it.toEntity() })
+    cacheDb.scheduleDao().insert(units.map { it.toEntity() })
 }
+fun loadSchedule(date: LocalDate): List<ScheduleUnit> =
+    cacheDb.scheduleDao().getSchedule(date.format(DateTimeFormatter.ISO_DATE))
+        .mapNotNull { it.toModel() }

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

@@ -2,7 +2,6 @@
 
 package ru.sweetbread.unn.ui.composes
 
-import android.util.Log
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.animateColorAsState
 import androidx.compose.foundation.Canvas
@@ -24,12 +23,11 @@ import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableFloatStateOf
 import androidx.compose.runtime.mutableIntStateOf
-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
@@ -43,9 +41,22 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.zIndex
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import androidx.lifecycle.viewmodel.compose.viewModel
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.delay
-import kotlinx.coroutines.launch
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.withContext
 import ru.sweetbread.unn.R
 import ru.sweetbread.unn.api.Auditorium
 import ru.sweetbread.unn.api.Building
@@ -55,6 +66,8 @@ import ru.sweetbread.unn.api.Lecturer
 import ru.sweetbread.unn.api.LecturerRank
 import ru.sweetbread.unn.api.ScheduleUnit
 import ru.sweetbread.unn.api.getScheduleDay
+import ru.sweetbread.unn.db.cacheDb
+import ru.sweetbread.unn.db.toModel
 import ru.sweetbread.unn.ui.theme.UNNTheme
 import splitties.resources.appStr
 import java.time.LocalDate
@@ -64,33 +77,84 @@ import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 import java.util.Calendar
 
+
+class ScheduleRepository {
+    fun getFromDb(date: LocalDate): List<ScheduleUnit> =
+        cacheDb.scheduleDao()
+            .getSchedule(date.format(DateTimeFormatter.ISO_DATE))
+            .mapNotNull { it.toModel() }
+    suspend fun getFromApi(date: LocalDate): List<ScheduleUnit> = getScheduleDay(date)
+}
+
+sealed class ScheduleState {
+    object Loading : ScheduleState()
+    data class Success(val data: List<ScheduleUnit>) : ScheduleState()
+    data class Error(val message: String) : ScheduleState()
+}
+
+class ScheduleViewModel : ViewModel() {
+    private val repository = ScheduleRepository()
+
+    private val _date = MutableStateFlow(LocalDate.now())
+    val date: StateFlow<LocalDate> = _date.asStateFlow()
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    val scheduleState: StateFlow<ScheduleState> = _date
+        .flatMapLatest { date ->
+            flow {
+                emit(ScheduleState.Loading)
+                val cached = withContext(Dispatchers.IO) {
+                    repository.getFromDb(date)
+                }
+                emit(ScheduleState.Success(cached))
+
+                try {
+                    val fresh = repository.getFromApi(date)
+                    if (fresh != cached) {
+                        emit(ScheduleState.Success(fresh))
+                    }
+                } catch (e: Exception) {
+                    emit(ScheduleState.Error("Ошибка загрузки: ${e.message}"))
+                }
+            }.flowOn(Dispatchers.IO)
+        }
+        .stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5000),
+            initialValue = ScheduleState.Loading
+        )
+
+    fun updateDate(newDate: LocalDate) {
+        _date.update { newDate }
+    }
+}
+
 @Composable
 fun Schedule() {
-    var selectedDate by remember { mutableStateOf(LocalDate.now()) }
+    val viewModel: ScheduleViewModel = viewModel()
 
     Column {
         BoundedWeekPicker(
             modifier = Modifier
                 .fillMaxWidth()
                 .padding(vertical = 8.dp),
-            selectedDate = selectedDate,
-            onDateSelected = { selectedDate = it }
+            selectedDate = viewModel.date.collectAsState().value,
+            onDateSelected = { viewModel.updateDate(it) }
         )
 
-        ScheduleDay(date = selectedDate)
+        ScheduleDay(viewModel = viewModel)
     }
 }
 
 @Composable
-fun ScheduleDay(modifier: Modifier = Modifier, date: LocalDate) {
-    val scope = rememberCoroutineScope()
-    var loadedDate by remember { mutableStateOf(LocalDate.MIN) }
-    val lessons = remember { mutableListOf<ScheduleUnit>() }
+fun ScheduleDay(modifier: Modifier = Modifier, viewModel: ScheduleViewModel) {
     var expanded by remember { mutableIntStateOf(0) }
+    val state by viewModel.scheduleState.collectAsState()
 
-    if (loadedDate == date) {
-        Log.d("Loaded", "${date.format(DateTimeFormatter.ISO_DATE)} ${lessons.size}")
-        LazyColumn (modifier) {
+    when (state) {
+        is ScheduleState.Success -> {
+            val lessons = (state as ScheduleState.Success).data
+            LazyColumn(modifier) {
                 items(lessons) {
                     ScheduleItem(unit = it, modifier = Modifier.clickable {
                         expanded = if (it.oid == expanded) 0
@@ -101,7 +165,8 @@ fun ScheduleDay(modifier: Modifier = Modifier, date: LocalDate) {
                 if (lessons.isEmpty())
                     item { Text(appStr(R.string.noData)) }
             }
-    } else {
+        }
+        is ScheduleState.Loading ->
             LinearProgressIndicator(
                 modifier = Modifier
                     .fillMaxWidth()
@@ -109,13 +174,8 @@ fun ScheduleDay(modifier: Modifier = Modifier, date: LocalDate) {
                 color = MaterialTheme.colorScheme.surfaceVariant,
                 trackColor = MaterialTheme.colorScheme.secondary,
             )
-        LaunchedEffect(date != loadedDate) {
-            scope.launch(Dispatchers.IO) {
-                lessons.clear()
-                lessons.addAll(getScheduleDay(date = date))
-                loadedDate = date
-            }
-        }
+        is ScheduleState.Error ->
+            Text((state as ScheduleState.Error).message, color = MaterialTheme.colorScheme.error)
     }
 }
 

gradle/wrapper/gradle-wrapper.properties

@@ -3,6 +3,6 @@
 #Sat Mar 16 18:30:45 MSK 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists