import { existsSync } from "node:fs";
import { homedir } from "node:os";
import { join, resolve } from "node:path";

export function getCodexSkillPaths(cwd: string, home: string = homedir()): string[] {
	const skillPaths = [join(home, ".agents", "skills")];
	let currentDir = resolve(cwd);
	while (true) {
		skillPaths.push(join(currentDir, ".agents", "skills"));
		const parentDir = resolve(currentDir, "..");
		if (parentDir === currentDir) {
			break;
		}
		currentDir = parentDir;
	}
	return skillPaths.filter((path) => existsSync(path));
}

export function hasNoSkillsFlag(argv: readonly string[] = process.argv): boolean {
	for (const arg of argv) {
		if (arg === "--") return false;
		if (arg === "--no-skills" || arg === "-ns") return true;
	}
	return false;
}