init

2026-09-02 23:47:00 +03:00
parent b4d0b0c8e9
commit a8830bcd91
77 changed files with 2998 additions and 0 deletions
@@ -0,0 +1,100 @@
+package agzam.vyatsu.ui.groups
+
+import agzam.vyatsu.domain.model.Group
+import agzam.vyatsu.domain.repository.GroupRepository
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+/**
+ * @author Agzam
+ */
+class GroupPickerViewModel(private val repository: GroupRepository) : ViewModel() {
+
+    private val _uiState = MutableStateFlow(GroupPickerUiState())
+    val uiState: StateFlow<GroupPickerUiState> = _uiState.asStateFlow()
+
+    init {
+        load()
+    }
+
+    private fun load() {
+        viewModelScope.launch {
+            withContext(Dispatchers.IO) {
+                val ok = try {
+                    repository.refreshIfStale()
+                } catch (e: Exception) {
+                    _uiState.value = _uiState.value.copy(
+                        error = e.message ?: "Не удалось загрузить группы"
+                    )
+                    false
+                }
+                if (!ok && _uiState.value.groups.isEmpty()) {
+                    _uiState.value = _uiState.value.copy(
+                        error = _uiState.value.error ?: "Не удалось обновить список групп"
+                    )
+                }
+            }
+            repository.observeGroups().collect { groups ->
+                val query = _uiState.value.searchQuery
+                _uiState.value = _uiState.value.copy(
+                    isLoading = false,
+                    groups = groups,
+                    filteredGroups = filterGroups(groups, query),
+                    error = null
+                )
+            }
+        }
+    }
+
+    fun search(query: String) {
+        val groups = _uiState.value.groups
+        _uiState.value = _uiState.value.copy(
+            searchQuery = query,
+            filteredGroups = filterGroups(groups, query)
+        )
+    }
+
+    private fun filterGroups(groups: List<Group>, query: String): List<Group> {
+        if (query.isBlank()) return groups
+        val lowerQuery = query.lowercase()
+        return groups.filter { group ->
+            group.name.lowercase().contains(lowerQuery) || group.faculty.lowercase().contains(lowerQuery)
+        }
+    }
+
+    fun retry() {
+        _uiState.value = _uiState.value.copy(isLoading = true, error = null)
+        load()
+    }
+
+    fun refresh() {
+        _uiState.value = _uiState.value.copy(isLoading = true, error = null)
+        viewModelScope.launch {
+            withContext(Dispatchers.IO) {
+                try {
+                    repository.forceRefresh()
+                } catch (e: Exception) {
+                    _uiState.value = _uiState.value.copy(
+                        isLoading = false,
+                        error = e.message ?: "Не удалось обновить список групп"
+                    )
+                    return@withContext
+                }
+            }
+        }
+    }
+}
+
+data class GroupPickerUiState(
+    val isLoading: Boolean = true,
+    val error: String? = null,
+    val groups: List<Group> = emptyList(),
+    val searchQuery: String = "",
+    val filteredGroups: List<Group> = emptyList()
+)