import { execSync, execFileSync } from "node:child_process";
import { writeFile, mkdir } from "node:fs/promises";
import { dirname } from "node:path";

export function commandExists(name: string): boolean {
  try {
    execSync(`command -v ${name}`, { stdio: "ignore" });
    return true;
  } catch {
    return false;
  }
}

export function run(cmd: string, opts?: { silent?: boolean }): string {
  const stdio = opts?.silent ? "pipe" : "inherit";
  const result = execSync(cmd, {
    stdio: [stdio, "pipe", stdio],
    encoding: "utf-8",
  });
  return result?.trim() ?? "";
}

export function runPassthrough(cmd: string): void {
  execSync(cmd, { stdio: "inherit" });
}

export function runShell(cmd: string): string {
  return execFileSync("/bin/bash", ["-c", cmd], {
    encoding: "utf-8",
    stdio: ["pipe", "pipe", "pipe"],
  }).trim();
}

export async function writeExecutable(
  path: string,
  content: string,
): Promise<void> {
  await mkdir(dirname(path), { recursive: true });
  await writeFile(path, content, { mode: 0o755 });
}

export async function writeConfig(
  path: string,
  content: string,
): Promise<void> {
  await mkdir(dirname(path), { recursive: true });
  await writeFile(path, content, { mode: 0o644 });
}