import { defineConfig } from "vite";
import solid from "vite-plugin-solid";
import solidStyled from "vite-plugin-solid-styled";
import suid from "@suid/vite-plugin";
import { VitePWA } from "vite-plugin-pwa";
import version from "vite-plugin-package-version";
import manifest from "./manifest.config";
import { GetManualChunk } from "rollup";

/**
 * Put all strings (/i18n/{key}.<json|js|ts>) into separated chunks based on the key.
 */
const chunkStrs: GetManualChunk = (id, { getModuleInfo }) => {
  const match = /.*\/i18n\/(.*)\.[jt]s.*$/.exec(id);
  if (match) {
    const key = match[1];

    const dependentEntryPoints = [];

    // we use a Set here so we handle each module at most once. This
    // prevents infinite loops in case of circular dependencies
    const idsToHandle = new Set(getModuleInfo(id)!.dynamicImporters);

    for (const moduleId of idsToHandle) {
      const { isEntry, dynamicImporters, importers } = getModuleInfo(moduleId)!;
      if (isEntry || dynamicImporters.length > 0)
        dependentEntryPoints.push(moduleId);

      // The Set iterator is intelligent enough to iterate over
      // elements that are added during iteration
      for (const importerId of importers) idsToHandle.add(importerId);
    }

    // If there is a unique entry, we put it into a chunk based on the
    // entry name
    if (dependentEntryPoints.length === 1) {
      return `${key}.${
        dependentEntryPoints[0].split("/").slice(-1)[0].split(".")[0]
      }.strings`;
    }
    // For multiple entries, we put it into a "shared" chunk
    if (dependentEntryPoints.length > 1) {
      return `${key}.shared.strings`;
    }
  }
};


const manualChunks: GetManualChunk = (id, meta) => {
  return chunkStrs(id, meta);
};

export default defineConfig(({ mode }) => ({
  plugins: [
    suid(),
    solid(),
    solidStyled({
      filter: {
        include: "src/**/*.{tsx,jsx}",
        exclude: "node_modules/**/*.{ts,js,tsx,jsx}",
      },
    }),
    VitePWA({
      strategies: "injectManifest",
      registerType: "autoUpdate",
      devOptions: {
        enabled: mode !== "production",
      },
      srcDir: "src/serviceworker",
      filename: "main.ts",
      manifest: manifest,
      pwaAssets: {
        config: true,
      },
    }),
    version(),
  ],
  server: {
    https: {
      // localhost.direct: https://github.com/Upinel/localhost.direct
      key: "tools/certs/localhost.direct.key",
      cert: "tools/certs/localhost.direct.crt",
      passphrase: "localhost",
    },
  },
  define: {
    "import.meta.env.BUILT_AT": `"${new Date().toISOString()}"`,
  },
  css: {
    devSourcemap: true,
  },
  build: {
    target: ["firefox98", "safari15.4", "ios15.4", "chrome84", "edge87"],
    sourcemap: true,
    rollupOptions: {
      output: {
        manualChunks,
      },
    },
  },
}));