import vue from '@vitejs/plugin-vue2';
import { createHtmlPlugin } from 'vite-plugin-html';
import legacy from '@vitejs/plugin-legacy';
import monacoEditorPlugin from "vite-plugin-monaco-editor";
import path, { resolve } from 'path';
import {defineConfig, PluginOption} from "vite";
import packageJSON from './package.json';

const vendorChunks = ['vue', 'vue-router', 'vuex'];
const ignoreChunks = ['vue2-boring-avatars', 'vue-template-compiler', 'jquery', '@fontsource/open-sans'];

const isScopedPackageToIgnore = (str: string) => /@codemirror\//.test(str);

function renderChunks() {
	const { dependencies } = packageJSON;
	const chunks: Record<string, string[]> = {};

	Object.keys(dependencies).forEach((key) => {
		if ([...vendorChunks, ...ignoreChunks].includes(key)) {
			return;
		}

		if (isScopedPackageToIgnore(key)) return;

		chunks[key] = [key];
	});

	return chunks;
}

const publicPath = process.env.VUE_APP_PUBLIC_PATH || '/';

const lodashAliases = ['orderBy', 'camelCase', 'cloneDeep', 'isEqual'].map(name => ({
	find: new RegExp(`^lodash.${name}$`, 'i'),
	replacement: require.resolve(`lodash-es/${name}`),
}))

export default defineConfig({
	plugins: [
		legacy({
			targets: ['defaults', 'not IE 11'],
		}),
		vue(),
		...createHtmlPlugin({
			inject: {
				data: {
					BASE_PATH: publicPath,
				},
			},
		}) as PluginOption[],
		monacoEditorPlugin({
			publicPath: 'assets/monaco-editor',
			customDistPath: (root: string, buildOutDir: string, base: string) => `${root}/${buildOutDir}/assets/monaco-editor`,
		}) as PluginOption,
	],
	resolve: {
		alias: [
			{ find: '@', replacement: resolve(__dirname, 'src') },
			{ find: 'stream', replacement: '' },
			{
				find: /^n8n-design-system\//,
				replacement: resolve(__dirname, '..', 'design-system', 'src') + '/',
			},
			...lodashAliases,
			{
				find: /^lodash.(.+)$/,
				replacement: 'lodash-es/$1',
			},
			{
				find: 'vue2-boring-avatars',
				replacement: require.resolve('vue2-boring-avatars'),
			},
			{
				find: /element-ui\/(packages|lib)\/button$/,
				replacement: path.resolve(__dirname, '..', 'design-system/src/components/N8nButton/overrides/ElButton.ts'),
			},
		],
	},
	base: publicPath,
	envPrefix: 'VUE_APP',
	css: {
		preprocessorOptions: {
			scss: {
				additionalData: '\n@use "@/n8n-theme-variables.scss" as *;\n',
			},
		},
	},
	build: {
		assetsInlineLimit: 0,
		sourcemap: false,
		rollupOptions: {
			output: {
				manualChunks: {
					vendor: vendorChunks,
					...renderChunks(),
				},
			},
		},
	},
	test: {
		globals: true,
		environment: 'jsdom',
		setupFiles: [
			'./src/__tests__/setup.ts',
		],
	},
});