android: apply delete action to full multi-selection

android/app/src/main/java/ru/daemonlord/messenger/ui/chat/ChatViewModel.kt

@@ -184,6 +184,35 @@ class ChatViewModel @Inject constructor(
     }
 
     fun onDeleteSelected(forAll: Boolean = false) {
+        val actionState = uiState.value.actionState
+        if (actionState.mode == MessageSelectionMode.MULTI) {
+            if (forAll) {
+                _uiState.update { it.copy(errorMessage = "Delete for all is available only for single message selection.") }
+                return
+            }
+            val selectedIds = actionState.selectedMessageIds.toList().sorted()
+            if (selectedIds.isEmpty()) return
+            viewModelScope.launch {
+                for (messageId in selectedIds) {
+                    when (val result = deleteMessageUseCase(messageId, forAll = false)) {
+                        is AppResult.Success -> Unit
+                        is AppResult.Error -> {
+                            _uiState.update { it.copy(errorMessage = result.reason.toUiMessage()) }
+                            return@launch
+                        }
+                    }
+                }
+                _uiState.update {
+                    it.copy(
+                        selectedMessage = null,
+                        selectedCanEdit = false,
+                        selectedCanDeleteForAll = false,
+                        actionState = it.actionState.clearSelection(),
+                    )
+                }
+            }
+            return
+        }
         val selected = getFocusedSelectedMessage() ?: return
         if (forAll && !canDeleteForAll(selected)) {
             _uiState.update { it.copy(errorMessage = "Delete for all is available only for your own messages.") }