/**
 * Build the server bundle.
 *
 * Steps:
 * 1. Build assets via Vite (CSS, JS, and manifest.json)
 * 2. Build server bundle via Bun (reads manifest.json at build time)
 * 3. Build pino OpenObserve transport separately for Docker runtime
 *
 * The manifest.json is generated by Vite and provides asset URLs
 * for production, eliminating runtime asset discovery.
 */
import { spawn } from "bun";

// Build public assets first (CSS + JS via Vite)
const assets = spawn({
  cmd: ["bun", "run", "vite", "build"],
  cwd: process.cwd(),
  stdout: "inherit",
  stderr: "inherit",
});
if ((await assets.exited) !== 0) process.exit(1);

// Build server bundle
const mainResult = await Bun.build({
  entrypoints: ["./src/index.ts"],
  outdir: "./dist",
  target: "bun",
  minify: {
    whitespace: true,
    identifiers: true,
    syntax: false,
  },
  sourcemap: "none",
});

if (!mainResult.success) {
  console.error("Build failed:");
  for (const msg of mainResult.logs) {
    console.error(msg);
  }
  process.exit(1);
}

// Build pino transport so it exists at dist/logger/open-observe.js for production
const transportResult = await Bun.build({
  entrypoints: ["./src/logger/open-observe.ts"],
  outdir: "./dist/logger",
  target: "bun",
  minify: {
    whitespace: true,
    identifiers: true,
    syntax: false,
  },
  sourcemap: "none",
});

if (!transportResult.success) {
  console.error("Transport build failed:");
  for (const msg of transportResult.logs) {
    console.error(msg);
  }
  process.exit(1);
}

for (const msg of [...mainResult.logs, ...transportResult.logs]) {
  if (msg.level === "warning") console.warn(msg.message);
}

console.log("Server bundle written to dist/");
console.log("Logger transport written to dist/logger/");