add express, automated mongodb atlas setup, fix stack architech

apps/cli/src/helpers/mongodb-atlas-setup.ts

@@ -0,0 +1,121 @@
+import path from "node:path";
+import { cancel, isCancel, log, text } from "@clack/prompts";
+import { execa } from "execa";
+import fs from "fs-extra";
+import pc from "picocolors";
+import { commandExists } from "../utils/command-exists";
+
+type MongoDBConfig = {
+	connectionString: string;
+};
+
+async function checkAtlasCLI(): Promise<boolean> {
+	return commandExists("atlas");
+}
+
+async function initMongoDBAtlas(
+	serverDir: string,
+): Promise<MongoDBConfig | null> {
+	try {
+		const hasAtlas = await checkAtlasCLI();
+
+		if (!hasAtlas) {
+			log.error(pc.red("MongoDB Atlas CLI not found."));
+			log.info(
+				pc.yellow(
+					"Please install it from: https://www.mongodb.com/docs/atlas/cli/current/install-atlas-cli/",
+				),
+			);
+			return null;
+		}
+
+		log.info(pc.yellow("Setting up MongoDB Atlas..."));
+
+		await execa("atlas", ["deployments", "setup"], {
+			cwd: serverDir,
+			stdio: "inherit",
+		});
+
+		log.info(pc.yellow("Please enter your connection string"));
+
+		const connectionString = await text({
+			message: "Paste your complete MongoDB connection string:",
+			validate(value) {
+				if (!value) return "Please enter a connection string";
+				if (!value.startsWith("mongodb")) {
+					return "URL should start with mongodb";
+				}
+			},
+		});
+
+		if (isCancel(connectionString)) {
+			cancel("MongoDB setup cancelled");
+			return null;
+		}
+
+		return {
+			connectionString: connectionString as string,
+		};
+	} catch (error) {
+		if (error instanceof Error) {
+			log.error(pc.red(error.message));
+		}
+		return null;
+	}
+}
+
+async function writeEnvFile(projectDir: string, config?: MongoDBConfig) {
+	const envPath = path.join(projectDir, "apps/server", ".env");
+	let envContent = "";
+
+	if (await fs.pathExists(envPath)) {
+		envContent = await fs.readFile(envPath, "utf8");
+	}
+
+	const mongoUrlLine = config
+		? `DATABASE_URL="${config.connectionString}"`
+		: `DATABASE_URL="mongodb://localhost:27017/mydb"`;
+
+	if (!envContent.includes("DATABASE_URL=")) {
+		envContent += `\n${mongoUrlLine}`;
+	} else {
+		envContent = envContent.replace(
+			/DATABASE_URL=.*(\r?\n|$)/,
+			`${mongoUrlLine}$1`,
+		);
+	}
+
+	await fs.writeFile(envPath, envContent.trim());
+}
+
+function displayManualSetupInstructions() {
+	log.info(`MongoDB Atlas Setup:
+
+1. Install Atlas CLI: https://www.mongodb.com/docs/atlas/cli/stable/install-atlas-cli/
+2. Run 'atlas deployments setup' and follow prompts
+3. Get your connection string from the output
+4. Format: mongodb+srv://USERNAME:PASSWORD@CLUSTER.mongodb.net/DATABASE_NAME
+5. Add to .env as DATABASE_URL="your_connection_string"`);
+}
+
+export async function setupMongoDBAtlas(projectDir: string) {
+	const serverDir = path.join(projectDir, "apps/server");
+
+	try {
+		const config = await initMongoDBAtlas(serverDir);
+
+		if (config) {
+			await writeEnvFile(projectDir, config);
+			log.success(
+				pc.green("MongoDB Atlas connection string saved to .env file!"),
+			);
+		} else {
+			await writeEnvFile(projectDir);
+			displayManualSetupInstructions();
+		}
+	} catch (error) {
+		log.error(pc.red(`Error during MongoDB Atlas setup: ${error}`));
+		await writeEnvFile(projectDir);
+		displayManualSetupInstructions();
+	}
+}