71 lines
1.8 KiB
Dart
71 lines
1.8 KiB
Dart
import 'package:riverpod_annotation/riverpod_annotation.dart';
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import 'package:cb_prestige_qr/features/scan/scan_providers.dart';
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part 'scan_controller.g.dart';
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class ScanState {
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const ScanState({
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this.isScanning = true,
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this.isProcessing = false,
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this.scannedValue,
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this.errorMessage,
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});
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final bool isScanning;
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final bool isProcessing;
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final String? scannedValue;
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final String? errorMessage;
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static const _sentinel = Object();
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ScanState copyWith({
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bool? isScanning,
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bool? isProcessing,
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Object? scannedValue = _sentinel,
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Object? errorMessage = _sentinel,
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}) {
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return ScanState(
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isScanning: isScanning ?? this.isScanning,
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isProcessing: isProcessing ?? this.isProcessing,
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scannedValue:
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identical(scannedValue, _sentinel) ? this.scannedValue : scannedValue as String?,
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errorMessage:
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identical(errorMessage, _sentinel) ? this.errorMessage : errorMessage as String?,
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);
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}
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}
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@riverpod
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class ScanController extends _$ScanController {
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@override
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ScanState build() => const ScanState();
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Future<void> onBarcodeDetected(String value) async {
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if (!state.isScanning || state.isProcessing) return;
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state = state.copyWith(
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isScanning: false,
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isProcessing: true,
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errorMessage: null,
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);
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try {
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final result = await ref.read(processScanUseCaseProvider)(value);
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state = state.copyWith(
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isProcessing: false,
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scannedValue: result.rawValue,
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);
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} catch (e) {
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state = state.copyWith(
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isProcessing: false,
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isScanning: true,
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scannedValue: null,
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errorMessage: e.toString(),
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);
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}
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}
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void resumeScanning() {
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state = const ScanState(isScanning: true, isProcessing: false, scannedValue: null, errorMessage: null);
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}
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}
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