Mobile: Fixes #382: Implemented new search engine for mobile and highlight searched words in notes

ReactNativeClient/lib/services/SearchEngineUtils.js

@@ -0,0 +1,32 @@
+const SearchEngine = require('lib/services/SearchEngine');
+const Note = require('lib/models/Note');
+
+class SearchEngineUtils {
+
+	static async notesForQuery(query) {
+		const results = await SearchEngine.instance().search(query);
+		const noteIds = results.map(n => n.id);
+
+		const previewOptions = {
+			order: [],
+			fields: Note.previewFields(),
+			conditions: ['id IN ("' + noteIds.join('","') + '")'],
+		}
+
+		const notes = await Note.previews(null, previewOptions);
+
+		// By default, the notes will be returned in reverse order
+		// or maybe random order so sort them here in the correct order
+		// (search engine returns the results in order of relevance).
+		const sortedNotes = [];
+		for (let i = 0; i < notes.length; i++) {
+			const idx = noteIds.indexOf(notes[i].id);
+			sortedNotes[idx] = notes[i];
+		}
+
+		return sortedNotes;
+	}
+
+}
+
+module.exports = SearchEngineUtils;