refactor: use rr actions/loader

refactor: use rr actions

apps/server/src/modules/backends/backend.ts

@@ -0,0 +1,24 @@
+import type { Volume } from "../../db/schema";
+import { makeDirectoryBackend } from "./directory/directory-backend";
+import { makeNfsBackend } from "./nfs/nfs-backend";
+
+export type VolumeBackend = {
+	mount: () => Promise<void>;
+	unmount: () => Promise<void>;
+};
+
+export const createVolumeBackend = (volume: Volume): VolumeBackend => {
+	const { config, path } = volume;
+
+	switch (config.backend) {
+		case "nfs": {
+			return makeNfsBackend(config, path);
+		}
+		case "directory": {
+			return makeDirectoryBackend();
+		}
+		default: {
+			throw new Error(`Backend ${config.backend} not implemented`);
+		}
+	}
+};

apps/server/src/modules/backends/directory/directory-backend.ts

@@ -0,0 +1,14 @@
+import type { VolumeBackend } from "../backend";
+
+const mount = async () => {
+	console.log("Mounting directory volume...");
+};
+
+const unmount = async () => {
+	console.log("Cannot unmount directory volume.");
+};
+
+export const makeDirectoryBackend = (): VolumeBackend => ({
+	mount,
+	unmount,
+});

apps/server/src/modules/backends/nfs/nfs-backend.ts

@@ -0,0 +1,39 @@
+import { exec } from "node:child_process";
+import * as os from "node:os";
+import type { BackendConfig } from "../../../db/schema";
+import type { VolumeBackend } from "../backend";
+
+const mount = async (config: BackendConfig, path: string) => {
+	if (config.backend !== "nfs") {
+		throw new Error("Invalid backend config for NFS");
+	}
+
+	if (os.platform() !== "linux") {
+		console.error("NFS mounting is only supported on Linux hosts.");
+		return;
+	}
+
+	const source = `${config.server}:${config.exportPath}`;
+	const options = [`vers=${config.version}`, `port=${config.port}`];
+	const cmd = `mount -t nfs -o ${options.join(",")} ${source} ${path}`;
+
+	return new Promise<void>((resolve, reject) => {
+		exec(cmd, (error, stdout, stderr) => {
+			if (error) {
+				console.error(`Error mounting NFS volume: ${stderr}`);
+				return reject(new Error(`Failed to mount NFS volume: ${stderr}`));
+			}
+			console.log(`NFS volume mounted successfully: ${stdout}`);
+			resolve();
+		});
+	});
+};
+
+const unmount = async () => {
+	console.log("Unmounting nfs volume...");
+};
+
+export const makeNfsBackend = (config: BackendConfig, path: string): VolumeBackend => ({
+	mount: () => mount(config, path),
+	unmount,
+});