// @ts-check

import { defineConfig } from "rollup";

import commonjs from "@rollup/plugin-commonjs";
import nodeResolve from "@rollup/plugin-node-resolve";
import json from "@rollup/plugin-json";
import terser from "@rollup/plugin-terser";
import typescript from "rollup-plugin-typescript2";
import copy from "rollup-plugin-copy";
import tsconfigPaths from "rollup-plugin-tsconfig-paths";

/** @type {(options: {matches: RegExp[]}) => import("rollup").Plugin} */
const excludeImports = (options) => {
  const matches = options.matches;
  return {
    name: "exclude-imports-plugin",
    resolveId(source, importer) {
      if (importer) {
        if (matches.some((r) => r.test(source))) {
          return {
            id: source,
            external: true,
          };
        }
      }
      return null;
    },
  };
};

const config = defineConfig(() => {
  const commonPlugs = [
    nodeResolve(),
    commonjs(),
    json(),
    typescript({ check: false }),
    excludeImports({
      matches: [/^gi:/, /^resource:/],
    }),
    // @ts-ignore
  ].concat(process.env.DEBUG ? null : terser(), tsconfigPaths());

  /** @type {import('rollup').RollupOptions} */
  const extensionModule = {
    input: "src/extension.ts",
    output: {
      name: "[name].js",
      dir: "dist",
      format: "es",
    },
    plugins: [
      ...commonPlugs,
      copy({
        targets: [
          {
            src: "src/metadata.json",
            dest: "dist",
          },
        ],
      }),
    ],
  };

  /** @type {import('rollup').RollupOptions} */
  const prefsModule = {
    input: "src/prefs.ts",
    output: {
      name: "[name].js",
      dir: "dist",
      format: "es",
    },
    plugins: [...commonPlugs],
  };

  return [extensionModule, prefsModule];
});

export default config;