import { sveltekit } from "@sveltejs/kit/vite";
import { defineConfig } from "vite";
import { execSync } from "node:child_process";
import path from "path";

// Build stamp rendered in the footer, so a deploy is visually identifiable.
function buildId(): string {
  let commit = "unknown";
  try {
    commit = execSync("git rev-parse --short HEAD", {
      stdio: ["ignore", "pipe", "ignore"],
    })
      .toString()
      .trim();
  } catch {
    // git is unavailable (for example when building from an exported tarball)
  }
  const stamp = new Date().toISOString().slice(0, 16).replace("T", " ");
  return `${commit} ${stamp}Z`;
}

export default defineConfig({
  define: {
    __BUILD_ID__: JSON.stringify(buildId()),
  },
  plugins: [sveltekit()],
  server: {
    port: 5173,
    // Allow all hosts (for ngrok and other tunnels)
    allowedHosts: true,
  },
  resolve: {
    alias: {
      jgoboard: path.resolve(__dirname, 'node_modules/jgoboard/main.js'),
    },
  },
});