organize code

apps/cli/src/prompts/project-name.ts

@@ -0,0 +1,95 @@
+import path from "node:path";
+import { cancel, isCancel, text } from "@clack/prompts";
+import fs from "fs-extra";
+import pc from "picocolors";
+import { DEFAULT_CONFIG } from "../constants";
+
+const INVALID_CHARS = ["<", ">", ":", '"', "|", "?", "*"];
+
+const MAX_LENGTH = 255;
+
+function validateDirectoryName(name: string): string | undefined {
+	if (!name) return "Project name cannot be empty";
+	if (name.length > MAX_LENGTH) {
+		return `Project name must be less than ${MAX_LENGTH} characters`;
+	}
+	if (INVALID_CHARS.some((char) => name.includes(char))) {
+		return "Project name contains invalid characters";
+	}
+	if (name.startsWith(".") || name.startsWith("-")) {
+		return "Project name cannot start with a dot or dash";
+	}
+	if (
+		name.toLowerCase() === "node_modules" ||
+		name.toLowerCase() === "favicon.ico"
+	) {
+		return "Project name is reserved";
+	}
+	return undefined;
+}
+
+export async function getProjectName(initialName?: string): Promise<string> {
+	if (initialName) {
+		const finalDirName = path.basename(initialName);
+		const validationError = validateDirectoryName(finalDirName);
+		if (!validationError) {
+			const projectDir = path.resolve(process.cwd(), initialName);
+			if (
+				!fs.pathExistsSync(projectDir) ||
+				fs.readdirSync(projectDir).length === 0
+			) {
+				return initialName;
+			}
+		}
+	}
+
+	let isValid = false;
+	let projectName = "";
+	let defaultName = DEFAULT_CONFIG.projectName;
+	let counter = 1;
+
+	while (fs.pathExistsSync(path.resolve(process.cwd(), defaultName))) {
+		defaultName = `${DEFAULT_CONFIG.projectName}-${counter}`;
+		counter++;
+	}
+
+	while (!isValid) {
+		const response = await text({
+			message: "What is your project named? (directory name or path)",
+			placeholder: defaultName,
+			initialValue: initialName,
+			defaultValue: defaultName,
+			validate: (value) => {
+				const nameToUse = value.trim() || defaultName;
+
+				const finalDirName = path.basename(nameToUse);
+				const validationError = validateDirectoryName(finalDirName);
+				if (validationError) return validationError;
+
+				const projectDir = path.resolve(process.cwd(), nameToUse);
+				if (!projectDir.startsWith(process.cwd())) {
+					return "Project path must be within current directory";
+				}
+
+				if (fs.pathExistsSync(projectDir)) {
+					const dirContents = fs.readdirSync(projectDir);
+					if (dirContents.length > 0) {
+						return `Directory "${nameToUse}" already exists and is not empty. Please choose a different name.`;
+					}
+				}
+
+				isValid = true;
+				return undefined;
+			},
+		});
+
+		if (isCancel(response)) {
+			cancel(pc.red("Operation cancelled."));
+			process.exit(0);
+		}
+
+		projectName = response || defaultName;
+	}
+
+	return projectName;
+}