import typescript from 'rollup-plugin-typescript2'
import { terser } from 'rollup-plugin-terser'
import { RollupOptions } from 'rollup'
import pkg from './package.json'

const banner: string = `
/** ${pkg.name}
 *
 * @author ${pkg.author.name}(${pkg.author.url})
 * @license ${pkg.license}
 */`.trim()

/** export rollup.config */
export default async (): Promise<RollupOptions | Array<RollupOptions>> => {
    return {
        treeshake: false,
        strictDeprecations: false,
        input: 'lib/index.ts',
        plugins: [
            typescript({ clean: true, useTsconfigDeclarationDir: true, abortOnError: true }),
            // compress
            terser()
        ],
        output: {
            exports: 'auto',
            inlineDynamicImports: true,
            banner,
            format: 'cjs',
            file: 'dist/index.js'
        }
    }
}