import resolve from "@rollup/plugin-node-resolve";
import commonjs from "@rollup/plugin-commonjs";
import babel from "@rollup/plugin-babel";
import { terser } from "rollup-plugin-terser";
import json from '@rollup/plugin-json';

const commonConfig = {
    input: 'src/index.js',
    output: {
        name: 'repertory-js',
        sourcemap: true
    },
    plugins: [
        resolve({
            customResolveOptions: {
                moduleDirectory: 'node_modules'
            }
        }),
        babel({
            exclude: 'node_modules/**',
            babelHelpers: 'runtime'
        }),
        commonjs(),
        json()
    ]
};

// ESM config
const esmConfig = Object.assign({}, commonConfig);
esmConfig.output = Object.assign({}, commonConfig.output, {
    file: 'dist/mjs/repertory-js.mjs',
    format: 'esm'
});

// ESM prod config
const esmProdConfig = Object.assign({}, esmConfig);
esmProdConfig.output = Object.assign({}, esmConfig.output, {
    file: 'dist/mjs/repertory-js.min.mjs',
    sourcemap: false
});
esmProdConfig.plugins = [
    ...esmConfig.plugins,
    terser()
];

let configurations = []; 
configurations.push(
    esmConfig,
    esmProdConfig
)

export default configurations;