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path: root/packages/frontend/vite.config.ts
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import path from 'path';
import pluginReplace from '@rollup/plugin-replace';
import pluginVue from '@vitejs/plugin-vue';
import { type UserConfig, defineConfig } from 'vite';
// @ts-expect-error https://github.com/sxzz/unplugin-vue-macros/issues/257#issuecomment-1410752890
import ReactivityTransform from '@vue-macros/reactivity-transform/vite';

import locales from '../../locales';
import generateDTS from '../../locales/generateDTS';
import meta from '../../package.json';
import pluginJson5 from './vite.json5';

const extensions = ['.ts', '.tsx', '.js', '.jsx', '.mjs', '.json', '.json5', '.svg', '.sass', '.scss', '.css', '.vue'];

const hash = (str: string, seed = 0): number => {
	let h1 = 0xdeadbeef ^ seed,
		h2 = 0x41c6ce57 ^ seed;
	for (let i = 0, ch; i < str.length; i++) {
		ch = str.charCodeAt(i);
		h1 = Math.imul(h1 ^ ch, 2654435761);
		h2 = Math.imul(h2 ^ ch, 1597334677);
	}

	h1 = Math.imul(h1 ^ (h1 >>> 16), 2246822507) ^ Math.imul(h2 ^ (h2 >>> 13), 3266489909);
	h2 = Math.imul(h2 ^ (h2 >>> 16), 2246822507) ^ Math.imul(h1 ^ (h1 >>> 13), 3266489909);

	return 4294967296 * (2097151 & h2) + (h1 >>> 0);
};

const BASE62_DIGITS = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
function toBase62(n: number): string {
	if (n === 0) {
		return '0';
	}
	let result = '';
	while (n > 0) {
		result = BASE62_DIGITS[n % BASE62_DIGITS.length] + result;
		n = Math.floor(n / BASE62_DIGITS.length);
	}

	return result;
}

export function getConfig(): UserConfig {
	return {
		base: '/vite/',

		server: {
			port: 5173,
		},

		plugins: [
			pluginVue({
				reactivityTransform: true,
			}),
			ReactivityTransform(),
			pluginJson5(),
			...process.env.NODE_ENV === 'production'
				? [
					pluginReplace({
						preventAssignment: true,
						values: {
							'isChromatic()': JSON.stringify(false),
						},
					}),
				]
				: [],
			{
				name: 'locale:generateDTS',
				buildStart: generateDTS,
			},
		],

		resolve: {
			extensions,
			alias: {
				'@/': __dirname + '/src/',
				'/client-assets/': __dirname + '/assets/',
				'/static-assets/': __dirname + '/../backend/assets/',
				'/fluent-emojis/': __dirname + '/../../fluent-emojis/dist/',
				'/fluent-emoji/': __dirname + '/../../fluent-emojis/dist/',
			},
		},

		css: {
			modules: {
				generateScopedName(name, filename, _css): string {
					const id = (path.relative(__dirname, filename.split('?')[0]) + '-' + name).replace(/[\\\/\.\?&=]/g, '-').replace(/(src-|vue-)/g, '');
					if (process.env.NODE_ENV === 'production') {
						return 'x' + toBase62(hash(id)).substring(0, 4);
					} else {
						return id;
					}
				},
			},
		},

		define: {
			_VERSION_: JSON.stringify(meta.version),
			_LANGS_: JSON.stringify(Object.entries(locales).map(([k, v]) => [k, v._lang_])),
			_ENV_: JSON.stringify(process.env.NODE_ENV),
			_DEV_: process.env.NODE_ENV !== 'production',
			_PERF_PREFIX_: JSON.stringify('Misskey:'),
			_DATA_TRANSFER_DRIVE_FILE_: JSON.stringify('mk_drive_file'),
			_DATA_TRANSFER_DRIVE_FOLDER_: JSON.stringify('mk_drive_folder'),
			_DATA_TRANSFER_DECK_COLUMN_: JSON.stringify('mk_deck_column'),
			__VUE_OPTIONS_API__: true,
			__VUE_PROD_DEVTOOLS__: false,
		},

		// https://vitejs.dev/guide/dep-pre-bundling.html#monorepos-and-linked-dependencies
		optimizeDeps: {
			include: ['misskey-js'],
		},

		build: {
			target: [
				'chrome108',
				'firefox109',
				'safari16',
			],
			manifest: 'manifest.json',
			rollupOptions: {
				input: {
					app: './src/_boot_.ts',
				},
				output: {
					manualChunks: {
						vue: ['vue'],
						photoswipe: ['photoswipe', 'photoswipe/lightbox', 'photoswipe/style.css'],
					},
					chunkFileNames: process.env.NODE_ENV === 'production' ? '[hash:8].js' : '[name]-[hash:8].js',
					assetFileNames: process.env.NODE_ENV === 'production' ? '[hash:8][extname]' : '[name]-[hash:8][extname]',
				},
			},
			cssCodeSplit: true,
			outDir: __dirname + '/../../built/_vite_',
			assetsDir: '.',
			emptyOutDir: false,
			sourcemap: process.env.NODE_ENV === 'development',
			reportCompressedSize: false,

			// https://vitejs.dev/guide/dep-pre-bundling.html#monorepos-and-linked-dependencies
			commonjsOptions: {
				include: [/misskey-js/, /node_modules/],
			},
		},

		worker: {
			format: 'es',
		},

		test: {
			environment: 'happy-dom',
			deps: {
				inline: [
					// XXX: misskey-dev/browser-image-resizer has no "type": "module"
					'browser-image-resizer',
				],
			},
		},
	};
}

const config = defineConfig(({ command, mode }) => getConfig());

export default config;