malice

import { defineConfig } from 'vite';

import { svelte, vitePreprocess } from '@sveltejs/vite-plugin-svelte';

/**

 * The page isn't SW-controlled on first launch, so the worker chunk and the

 * wasm can bypass fetch interception entirely and never get cached. Instead

 * of relying on runtime fetches, prepend the full list of emitted files

 * (chunks, assets, wasm) to sw.js as a global so install() can precache all

 * of it directly, no separate request needed.

 */

function precacheManifestPlugin(): import('vite').Plugin {

  return {

    name: 'malice-sw-precache-manifest',

    generateBundle(_options, bundle) {

      const urls = Object.keys(bundle)

        .filter((fileName) => fileName !== 'sw.js' && fileName !== '.vite/manifest.json')

        .map((fileName) => `/${fileName}`);

      const swChunk = bundle['sw.js'];

      if (swChunk && swChunk.type === 'chunk') {

        swChunk.code = `self.__MALICE_PRECACHE__=${JSON.stringify(urls)};\n${swChunk.code}`;

      }

    }

  };

}

export default defineConfig(({ mode }) => {

  const device = mode === 'device';

  return {

    plugins: [svelte({ preprocess: vitePreprocess() }), ...(device ? [precacheManifestPlugin()] : [])],

    assetsInclude: ['**/*.wasm'],

    resolve: {

      alias: {

        'malice:device-transport': device ? '/src/lib/device-transport.ts' : '/src/lib/device-transport.stub.ts'

      }

    },

    server: {

      host: '127.0.0.1',

      port: 5173,

      proxy: {

        '/api': 'http://localhost:3000'

      }

    },

    preview: {

      host: '127.0.0.1',

      port: 4173,

      proxy: {

        '/api': 'http://localhost:3000'

      }

    },

    build: device

      ? {

          outDir: 'dist-device',

          emptyOutDir: true,

          manifest: true,

          rollupOptions: {

            input: {

              main: 'index.html',

              sw: 'src/sw.ts'

            },

            output: {

              entryFileNames: (chunk) => (chunk.name === 'sw' ? 'sw.js' : 'assets/[name]-[hash].js')

            }

          }

        }

      : {

          outDir: 'dist',

          emptyOutDir: true

        }

  };

});