import alias from "@rollup/plugin-alias";
import commonjs from "@rollup/plugin-commonjs";
import nodeResolve from "@rollup/plugin-node-resolve";
import json from "@rollup/plugin-json";
import nodePolyfills from "rollup-plugin-polyfill-node";
import globals from "rollup-plugin-node-globals";

// Debugging tools
import { visualizer } from "rollup-plugin-visualizer";

import pickFromPackageJson from "./scripts/pick-from-package-json";
import { version } from "./package.json";

const config = {
  input: "./browser-entry.js",
  output: {
    file: "./mocha.js",
    format: "umd",
    sourcemap: true,
    name: "mocha",
    banner: `// mocha@${version} in javascript ES2018`,
  },
  plugins: [
    // https://github.com/FredKSchott/rollup-plugin-polyfill-node/issues/84
    alias({
      entries: [{ find: /^node:(.*)/, replacement: "$1" }],
    }),
    json(),
    pickFromPackageJson({
      keys: ["name", "version", "homepage", "notifyLogo"],
    }),
    commonjs(),
    globals(),
    nodePolyfills(),
    nodeResolve({
      browser: true,
    }),
  ],
  onwarn: (warning, warn) => {
    if (warning.code === "CIRCULAR_DEPENDENCY") return;

    // Use default for everything else
    warn(warning);
  },
};

if (!process.env.CI) {
  config.plugins.push(visualizer());
}

export default config;
