Desktop: Optimised sidebar rendering speed

ReactNativeClient/lib/services/debug/populateDatabase.ts

@@ -0,0 +1,56 @@
+const Folder = require('lib/models/Folder');
+const Note = require('lib/models/Note');
+
+function randomIndex(array:any[]):number {
+	return Math.round(Math.random() * (array.length - 1));
+}
+
+export default async function populateDatabase(db:any) {
+	await db.clearForTesting();
+
+	const folderCount = 2000;
+	const noteCount = 20000;
+
+	const createdFolderIds:string[] = [];
+	const createdNoteIds:string[] = [];
+
+	for (let i = 0; i < folderCount; i++) {
+		const folder:any = {
+			title: `folder${i}`,
+		};
+
+		const isRoot = Math.random() <= 0.1 || i === 0;
+
+		if (!isRoot) {
+			const parentIndex = randomIndex(createdFolderIds);
+			folder.parent_id = createdFolderIds[parentIndex];
+		}
+
+		const savedFolder = await Folder.save(folder);
+		createdFolderIds.push(savedFolder.id);
+
+		console.info(`Folders: ${i} / ${folderCount}`);
+	}
+
+	let noteBatch = [];
+	for (let i = 0; i < noteCount; i++) {
+		const note:any = { title: `note${i}`, body: `This is note num. ${i}` };
+		const parentIndex = randomIndex(createdFolderIds);
+		note.parent_id = createdFolderIds[parentIndex];
+
+		noteBatch.push(Note.save(note, { dispatchUpdateAction: false }).then((savedNote:any) => {
+			createdNoteIds.push(savedNote.id);
+			console.info(`Notes: ${i} / ${noteCount}`);
+		}));
+
+		if (noteBatch.length > 1000) {
+			await Promise.all(noteBatch);
+			noteBatch = [];
+		}
+	}
+
+	if (noteBatch.length) {
+		await Promise.all(noteBatch);
+		noteBatch = [];
+	}
+}