feat: view type stored in view/cubit, itself, cleanup coe

lib/features/document_scan/cubit/document_scanner_cubit.dart

@@ -0,0 +1,39 @@
+import 'dart:developer';
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:paperless_api/paperless_api.dart';
+
+class DocumentScannerCubit extends Cubit<List<File>> {
+  DocumentScannerCubit() : super(const []);
+
+  void addScan(File file) => emit([...state, file]);
+
+  void removeScan(int fileIndex) {
+    try {
+      state[fileIndex].deleteSync();
+      final scans = [...state];
+      scans.removeAt(fileIndex);
+      emit(scans);
+    } catch (_) {
+      throw const PaperlessServerException(ErrorCode.scanRemoveFailed);
+    }
+  }
+
+  void reset() {
+    try {
+      for (final doc in state) {
+        doc.deleteSync();
+        if (kDebugMode) {
+          log('[ScannerCubit]: Removed ${doc.path}');
+        }
+      }
+      imageCache.clear();
+      emit([]);
+    } catch (_) {
+      throw const PaperlessServerException(ErrorCode.scanRemoveFailed);
+    }
+  }
+}