import { spawnSync } from "node:child_process";
import path from "node:path";
import { fileURLToPath } from "node:url";

const ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
const TERRAFORM = process.env.TERRAFORM_BIN || "terraform";
// Only dev has a live root. Staging adoption (SH-287) adds its own root here.
const ENVIRONMENTS = ["dev"];
const ROOTS = ENVIRONMENTS.map((environment) => path.join(ROOT, "terraform", "live", environment));

function run(args, cwd = ROOT) {
  const result = spawnSync(TERRAFORM, args, {
    cwd,
    encoding: "utf8",
    stdio: "inherit",
  });
  if (result.error) {
    throw new Error(`could not start Terraform: ${result.error.message}`, {
      cause: result.error,
    });
  }
  if (result.status !== 0) {
    throw new Error(`terraform ${args.join(" ")} failed with exit code ${result.status}`);
  }
}

run(["fmt", "-check", "-recursive", path.join(ROOT, "terraform")]);
for (const root of ROOTS) {
  // -backend=false never touches HCP state; -lockfile=readonly refuses to
  // silently rewrite the committed provider lock.
  run(["init", "-backend=false", "-input=false", "-lockfile=readonly", "-no-color"], root);
  run(["validate", "-no-color"], root);
}

console.log(`Terraform formatting and validation passed for ${ENVIRONMENTS.join(", ")}.`);