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BadNote/lib/providers/search_provider.dart
Akiba So f4f0853eae
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feat(storage): notes are vault sidecar notebooks
Phase 4. Standalone notes move off SQLite into the vault, like the
PDF annotations.

- "Create notebook" makes a vault folder with a notebook.badnote.json
  (BadnoteSidecar docType 'notebook' + a title field), opened via
  SidecarRepository.
- PenNoteScreen loads/saves its strokes (page 0) + title to that
  sidecar instead of the SQLite Note model.
- note_provider lists notes from a vault scan (VaultService.scanNotes
  = folders with notebook.badnote.json and no source file); the doc
  scan still excludes them. Delete removes the folder.

PDF/slide editors unchanged; pre-existing SQLite notes migrate in
Phase 5. analyze clean, tests green.
2026-06-24 22:48:18 +08:00

101 lines
3.1 KiB
Dart

import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../models/document.dart';
import '../models/note.dart';
import '../services/database_service.dart';
/// SQLite handle for the FTS/OCR search index. SQLite is now demoted to a
/// rebuildable search cache (the vault sidecars are the source of truth); search
/// is its sole remaining read path until the Phase 6 index rebuild lands.
final databaseServiceProvider = FutureProvider<DatabaseService>((ref) async {
return DatabaseService.getInstance();
});
final searchQueryProvider = StateProvider<String>((ref) => '');
/// A search result that can be either a note hit or a document hit.
sealed class SearchResult {
const SearchResult();
}
class NoteSearchHit extends SearchResult {
final Note note;
final String snippet;
const NoteSearchHit({required this.note, this.snippet = ''});
}
class DocumentSearchHit extends SearchResult {
final String documentId;
final String filename;
final String filePath;
final int pageNumber;
final String snippet;
const DocumentSearchHit({
required this.documentId,
required this.filename,
required this.filePath,
required this.pageNumber,
this.snippet = '',
});
}
final searchResultsProvider = FutureProvider<List<SearchResult>>((ref) async {
final query = ref.watch(searchQueryProvider);
if (query.isEmpty) return [];
// Obtain the DB through the provider graph so this participates in
// initialization and disposal like every other consumer.
final db = await ref.watch(databaseServiceProvider.future);
// Run the note and document searches concurrently.
final searches = await Future.wait([
db.searchNotes(query),
db.searchDocuments(query),
]);
final noteHits = searches[0] as List<Note>;
final docHits = searches[1] as List<Map<String, dynamic>>;
final results = <SearchResult>[];
// Add note results.
for (final note in noteHits) {
results.add(NoteSearchHit(note: note, snippet: note.title));
}
// Resolve document metadata without an N+1 loop: collect the distinct
// document ids referenced by the hits, look each up exactly once, then
// build the result list from the cached lookups.
final docIds = <String>{
for (final hit in docHits)
if (hit['document_id'] is String) hit['document_id'] as String,
};
final docEntries = await Future.wait(
docIds.map((id) async => MapEntry(id, await db.getDocument(id))),
);
final docsById = <String, Document>{
for (final entry in docEntries)
if (entry.value != null) entry.key: entry.value!,
};
for (final hit in docHits) {
final documentId = hit['document_id'];
if (documentId is! String) continue;
final doc = docsById[documentId];
if (doc == null) continue;
final pageNumber = hit['page_number'];
final content = hit['content'];
results.add(
DocumentSearchHit(
documentId: documentId,
filename: doc.filename,
filePath: doc.filePath,
pageNumber: pageNumber is int ? pageNumber : 0,
snippet: content is String ? content : '',
),
);
}
return results;
});