Basic syncing in the plugin

plugin/src/apply-remote-changes-locally.ts

@@ -0,0 +1,54 @@
+import { Vault } from "obsidian";
+import { Database } from "./database/database";
+import { SyncServer } from "./services/sync_service";
+import { syncRemotelyUpdatedFile } from "./sync-operations/sync-remotely-updated-file";
+import { Logger } from "./logger";
+import { FileOperations } from "./file-operations/file-operations";
+
+let isRunning = false;
+
+export async function applyRemoteChangesLocally(
+	database: Database,
+	syncServer: SyncServer,
+	operations: FileOperations
+) {
+	if (isRunning) {
+		Logger.getInstance().info("Sync already in progress, skipping");
+		return;
+	}
+
+	isRunning = true;
+	try {
+		if (!database.getSettings().isSyncEnabled) {
+			return;
+		}
+
+		const remote = await syncServer.getAll(database.getLastSeenUpdateId());
+
+		if (remote.latestDocuments.length === 0) {
+			Logger.getInstance().debug("No remote changes to apply");
+			return;
+		}
+
+		Logger.getInstance().info("Applying remote changes locally");
+
+		await Promise.all(
+			remote.latestDocuments.map((remoteDocument) =>
+				syncRemotelyUpdatedFile({
+					database,
+					syncServer,
+					operations: operations,
+					remoteVersion: remoteDocument,
+				})
+			)
+		);
+
+		await database.setLastSeenUpdateId(remote.lastUpdateId);
+	} catch (e) {
+		Logger.getInstance().error(
+			`Failed to apply remote changes locally: ${e}`
+		);
+	} finally {
+		isRunning = false;
+	}
+}