import glob from 'glob';
import resolve from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import copy from 'rollup-plugin-copy';
import {terser} from 'rollup-plugin-terser';
import json from '@rollup/plugin-json';
import serve from 'rollup-plugin-serve';
import url from '@rollup/plugin-url';
import del from 'rollup-plugin-delete';
import fs from 'fs';
import selfsigned from 'selfsigned';
import {getPackagePath, getDistPath} from '../../rollup.utils';

const pkg = require('./package.json');
const build = typeof process.env.BUILD !== 'undefined' ? process.env.BUILD : 'local';
console.log('build: ' + build);

const USE_HTTPS = true;

function generateTLSConfig() {
    fs.mkdirSync('.cert', {recursive: true});

    if (!fs.existsSync('.cert/server.key') || !fs.existsSync('.cert/server.cert')) {
        const attrs = [{name: 'commonName', value: 'dbp-dev.localhost'}];
        const pems = selfsigned.generate(attrs, {algorithm: 'sha256', days: 9999});
        fs.writeFileSync('.cert/server.key', pems.private);
        fs.writeFileSync('.cert/server.cert', pems.cert);
    }

    return {
        key: fs.readFileSync('.cert/server.key'),
        cert: fs.readFileSync('.cert/server.cert'),
    };
}

export default async () => {
    return {
        input:
            build != 'test'
                ? ['src/dbp-qr-code-scanner.js', 'src/dbp-qr-code-scanner-demo.js']
                : glob.sync('test/**/*.js'),
        output: {
            dir: 'dist',
            entryFileNames: '[name].js',
            chunkFileNames: 'shared/[name].[hash].[format].js',
            format: 'esm',
            sourcemap: true,
        },
        plugins: [
            del({
                targets: 'dist/*',
            }),
            resolve(),
            commonjs(),
            json(),
            url({
                limit: 0,
                emitFiles: true,
                fileName: 'shared/[name].[hash][extname]',
            }),
            build !== 'local' && build !== 'test' ? terser() : false,
            copy({
                targets: [
                    {src: 'assets/index.html', dest: 'dist'},
                    {src: 'assets/favicon.ico', dest: 'dist'},
                    {
                        src: await getPackagePath('@dbp-toolkit/common', 'assets/icons/*.svg'),
                        dest: 'dist/' + (await getDistPath('@dbp-toolkit/common', 'icons')),
                    },
                ],
            }),
            process.env.ROLLUP_WATCH === 'true'
                ? serve({
                      contentBase: 'dist',
                      host: '127.0.0.1',
                      port: 8002,
                      https: USE_HTTPS ? generateTLSConfig() : false,
                  })
                : false,
        ],
    };
};