#!/usr/bin/env node

/**
 * setup-binaries.js — Idempotent Neutralinojs binary setup.
 *
 * Ensures the bin/ folder contains platform binaries matching the version
 * pinned in neutralino.config.json (cli.binaryVersion). Downloads them
 * via `neu update` only when missing or when the pinned version changes.
 *
 * A version marker (bin/.version) tracks the installed version so that
 * repeated builds and dev runs skip the download entirely.
 *
 * Run from the desktop-app/ directory:
 *   node setup-binaries.js
 */

const fs = require("fs");
const path = require("path");
const { execSync } = require("child_process");

const CONFIG_FILE = path.resolve(__dirname, "neutralino.config.json");
const BIN_DIR = path.resolve(__dirname, "bin");
const VERSION_MARKER = path.join(BIN_DIR, ".version");

/** Neu CLI package — same version used across all npm scripts */
const NEU_CLI = "@neutralinojs/neu@11.7.0";

const config = JSON.parse(fs.readFileSync(CONFIG_FILE, "utf-8"));
const expectedVersion = config.cli.binaryVersion;

if (!expectedVersion) {
  console.error("✗ cli.binaryVersion not set in neutralino.config.json");
  process.exit(1);
}

/** Check if binaries are already present and match the expected version */
if (fs.existsSync(VERSION_MARKER)) {
  const installed = fs.readFileSync(VERSION_MARKER, "utf-8").trim();
  if (installed === expectedVersion) {
    console.log(
      `✓ Neutralinojs binaries v${expectedVersion} already present — skipping download`,
    );
    process.exit(0);
  }
  console.log(
    `↻ Version changed (${installed} → ${expectedVersion}) — re-downloading`,
  );
}

/** Download binaries + client library via neu update */
console.log(`⬇ Downloading Neutralinojs v${expectedVersion} binaries...`);
execSync(`npx -y ${NEU_CLI} update`, {
  cwd: __dirname,
  stdio: "inherit",
});

/** Write version marker so subsequent runs are no-ops */
fs.mkdirSync(BIN_DIR, { recursive: true });
fs.writeFileSync(VERSION_MARKER, expectedVersion, "utf-8");
console.log(`✓ Neutralinojs binaries v${expectedVersion} ready`);