import { build, context } from "esbuild";

const watch = process.argv.includes("--watch");

/** @type {import('esbuild').BuildOptions} */
const options = {
  entryPoints: ["src/extension.ts"],
  outfile: "out/extension.cjs",
  bundle: true,
  platform: "node",
  format: "cjs",
  target: "node20",
  sourcemap: true,
  // vscode is provided by the host; @cline/sdk is ESM-only and is loaded at
  // runtime via dynamic import() from node_modules, so keep both external.
  external: ["vscode", "@cline/sdk"],
  logLevel: "info",
};

if (watch) {
  const ctx = await context(options);
  await ctx.watch();
  console.log("esbuild: watching…");
} else {
  await build(options);
  console.log("esbuild: build complete → out/extension.cjs");
}