/**
 * esbuild configuration for building the paperclipai CLI for npm.
 *
 * Bundles all workspace packages (@paperclipai/*) into a single file.
 * External npm packages remain as regular dependencies.
 */

import { readFileSync } from "node:fs";
import { resolve, dirname } from "node:path";
import { fileURLToPath } from "node:url";

const __dirname = dirname(fileURLToPath(import.meta.url));
const repoRoot = resolve(__dirname, "..");

// Workspace packages whose code should be bundled into the CLI
const workspacePaths = [
  "cli",
  "server",
  "packages/db",
  "packages/shared",
  "packages/adapter-utils",
  "packages/adapters/claude-local",
  "packages/adapters/codex-local",
  "packages/adapters/openclaw",
];

// Collect all external (non-workspace) npm package names
const externals = new Set();
for (const p of workspacePaths) {
  const pkg = JSON.parse(readFileSync(resolve(repoRoot, p, "package.json"), "utf8"));
  for (const name of Object.keys(pkg.dependencies || {})) {
    if (!name.startsWith("@paperclipai/")) externals.add(name);
  }
  for (const name of Object.keys(pkg.optionalDependencies || {})) {
    externals.add(name);
  }
}

/** @type {import('esbuild').BuildOptions} */
export default {
  entryPoints: ["src/index.ts"],
  bundle: true,
  platform: "node",
  target: "node20",
  format: "esm",
  outfile: "dist/index.js",
  banner: { js: "#!/usr/bin/env node" },
  external: [...externals].sort(),
  treeShaking: true,
  sourcemap: true,
};