linusandClaude Sonnet 5
a4ae7549ae
Backend: - PATCH /api/wahl/:wahlId (isOpen) to open/close a Wahl. - GET /api/wahl/:wahlId/teilnehmer (LT): participants with their priorities and any existing Force-Zuteilung. - Verified against local Postgres: PATCH toggles isOpen, teilnehmer list returns, CSV export works. (A stale dev server on :3000 masked this at first — real routes are fine.) Client (client/app/): - Wahl detail: open/close switch, participant list with a "Zuteilen" (Force-Zuteilung) action, CSV export via a browser download (browser.downloadText). - files_admin_screen.dart: LT file upload — browser.pickFile() + visibility picker -> multipart POST /api/files/:kcId; list existing files. Reachable from KcDetailScreen. - browser_web.dart gains pickFile()/downloadText() (native <input file> + Blob), with throwing stubs for the VM. - Dropped the file_picker package again (heavy transitive deps, and the native web input is enough); disk on this box is nearly full. flutter analyze/test/build web green; backend npm test 56. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
64 lines
2.1 KiB
Dart
64 lines
2.1 KiB
Dart
import 'dart:async';
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import 'dart:js_interop';
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import 'package:web/web.dart' as web;
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/// Per-tab storage for the PKCE verifier + CSRF state (cleared when the tab
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/// closes), and the little bit of `window` access the OIDC redirect needs.
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void setSession(String key, String value) =>
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web.window.sessionStorage.setItem(key, value);
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String? getSession(String key) => web.window.sessionStorage.getItem(key);
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void removeSession(String key) => web.window.sessionStorage.removeItem(key);
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void redirect(String url) => web.window.location.assign(url);
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Map<String, String> currentQueryParameters() =>
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Uri.parse(web.window.location.href).queryParameters;
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/// Drop the OIDC callback path + `?code=…&state=…` from the address bar
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/// without reloading (back to the app root).
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void clearQuery() {
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web.window.history.replaceState(null, '', '/');
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}
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/// Opens the OS file picker and reads the chosen file's bytes.
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Future<({String name, List<int> bytes})?> pickFile() {
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final completer = Completer<({String name, List<int> bytes})?>();
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final input = web.HTMLInputElement()..type = 'file';
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input.onchange = ((web.Event _) {
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final files = input.files;
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if (files == null || files.length == 0) {
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completer.complete(null);
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return;
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}
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final file = files.item(0)!;
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final reader = web.FileReader();
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reader.onload = ((web.Event _) {
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final buffer = (reader.result as JSArrayBuffer).toDart;
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completer.complete((name: file.name, bytes: buffer.asUint8List()));
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}).toJS;
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reader.onerror = ((web.Event _) => completer.complete(null)).toJS;
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reader.readAsArrayBuffer(file);
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}).toJS;
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input.click();
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return completer.future;
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}
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/// Triggers a browser download of an in-memory string (e.g. the CSV export).
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void downloadText(
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String filename,
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String content, {
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String mime = 'text/csv;charset=utf-8',
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}) {
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final blob = web.Blob([content.toJS].toJS, web.BlobPropertyBag(type: mime));
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final url = web.URL.createObjectURL(blob);
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web.HTMLAnchorElement()
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..href = url
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..download = filename
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..click();
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web.URL.revokeObjectURL(url);
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}
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