import babel from '@rollup/plugin-babel';
import nodeResolve from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import vue from "rollup-plugin-vue";
import { globSync } from 'glob';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import postcss from 'rollup-plugin-postcss';
import replace from '@rollup/plugin-replace';
import alias from '@rollup/plugin-alias';
import { existsSync } from 'node:fs';
import terser from '@rollup/plugin-terser';
import json from '@rollup/plugin-json';

function FhcResolver () {
  return {
    name: 'fhc-resolver', // this name will show up in logs and errors
    resolveId ( source, importer, options ) {
      if( source.includes('.php') ) {
	return false;
      }
      //console.log('source: ' + source + ' options.isEntry: ' + options.isEntry + ' importer: ' + importer);
      if(importer !== undefined && !options.isEntry && !path.isAbsolute(source)) {
        let tmp = path.dirname(importer);
	if( importer.includes('/application/') ) {
	  tmp = tmp.replace(/public\/js\//, 'js/').replace(/\/application\//, '/public/');
	}
      	const resolved = path.resolve(tmp, source);
	//console.log(resolved);
	if( existsSync(resolved) ) {
	  return resolved
	}
      }
      return null; // other ids should be handled as usually
    }
  };
}

export default {
	input: Object.fromEntries(
		globSync('public/**/js/apps/**/*.js', {follow: true, realpath: true}).map(file => {
			if( path.dirname(file).includes('/dist/') || path.dirname(file).includes('/apps/vbform') ) {
				return null;
			}
			// This remove `src/` as well as the file extension from each
			// file, so e.g. src/nested/foo.js becomes nested/foo
			return [path.relative(
				'',
				file.slice(0, file.length - path.extname(file).length)
			).replace(/public\//, 'public/dist/'),
			// This expands the relative paths to absolute paths, so e.g.
			// src/nested/foo becomes /project/src/nested/foo.js
			fileURLToPath(new URL(file, import.meta.url))]
		}).filter(Boolean)
	),
	plugins: [
            	alias({
			entries: {
				vue: 'vue/dist/vue.esm-bundler.js'
			}
		}),
		nodeResolve({
			preferBuiltins: true,
			moduleDirectories: ['node_modules'],
			modulePaths: globSync('application/extensions/*/node_modules', {follow: true, realpath: true}).map(file => 
				fileURLToPath(new URL(file, import.meta.url))
			),
		}),
		FhcResolver(),
		replace({
			preventAssignment: true,
			'process.env.NODE_ENV': JSON.stringify( 'production' ),
    		}),
		commonjs(),
		vue(),
		json(),
		babel({
			babelHelpers: 'bundled',
      			plugins: ['transform-class-properties']
		}),
    		postcss({
      			extract: false,
      			modules: true,
      			use: ['sass'],
    		}),
		terser()
	],
	watch: {
		buildDelay: 500
	},
	output: {
		preserveModules: false,
		sourcemap: true,
		format: 'es',
		dir: './',
		//manualChunks: {}
		chunkFileNames: 'public/dist/js/includes/[name]-[hash].js'
	}
};