/**
 * CONFIG: https://vite.dev/config/
 */

import { resolve } from "node:path";
import { defineConfig } from "vite";
import { viteStaticCopy } from "vite-plugin-static-copy";
import { plg_svg2png, plg_svg2svg } from "./tools/plg.js";

const ROOT = "../.."; // root of the git reposetory

const PATH = {
  dist: resolve(ROOT, "searx/static/themes/simple"),
  // dist: resolve(ROOT, "client/simple/dist"),

  src: "src",
  modules: "node_modules",
  brand: "src/brand",
  static: resolve(ROOT, "client/simple/static"),
  leaflet: resolve(ROOT, "client/simple/node_modules/leaflet/dist"),
  templates: resolve(ROOT, "searx/templates/simple")
};

const svg2svg_opts = {
  plugins: [{ name: "preset-default" }, "sortAttrs", "convertStyleToAttrs"]
};

const svg2svg_favicon_opts = {
  plugins: [{ name: "preset-default" }, "sortAttrs"]
};

export default defineConfig({
  root: PATH.src,
  mode: "production",
  // mode: "development",

  // FIXME: missing CCS sourcemaps!!
  // see: https://github.com/vitejs/vite/discussions/13845#discussioncomment-11992084
  //
  // what I have tried so far (see config below):
  //
  // - build.sourcemap
  // - esbuild.sourcemap
  // - css.preprocessorOptions.less.sourceMap

  css: {
    devSourcemap: true,
    preprocessorOptions: {
      less: {
        // FIXME: missing CCS sourcemaps!!
        sourceMap: {
          outputSourceFiles: true,
          sourceMapURL: (name) => {
            const s = name.split("/");
            return s[s.length - 1] + ".map";
          }
        }
        // env: 'development',
        // relativeUrls: true,
        // javascriptEnabled: true,
      }
    }
  }, // end: css

  esbuild: {
    // FIXME: missing CCS sourcemaps!!
    sourcemap: true
  },

  build: {
    target: "es2016",
    manifest: "manifest.json",
    emptyOutDir: true,
    assetsDir: "",
    outDir: PATH.dist,

    // FIXME: missing CCS sourcemaps!!
    sourcemap: true,

    // https://vite.dev/config/build-options.html#build-cssminify
    cssMinify: true,
    // cssMinify: "esbuild",
    minify: "esbuild",

    rollupOptions: {
      input: {
        // build CSS files
        "css/searxng.min.css": PATH.src + "/less/style-ltr.less",
        "css/searxng-rtl.min.css": PATH.src + "/less/style-rtl.less",
        "css/rss.min.css": PATH.src + "/less/rss.less",

        // build JS files
        "js/searxng.head.min": PATH.src + "/js/searxng.head.js",
        "js/searxng.min": PATH.src + "/js/searxng.js"
      },

      // file naming conventions / pathnames are relative to outDir (PATH.dist)
      output: {
        entryFileNames: "[name].js",
        chunkFileNames: "[name].js",
        assetFileNames: "[name].[ext]"
        // Vite does not support "rollupOptions.output.sourcemap".
        // Please use "build.sourcemap" instead.
        // sourcemap: true,
      }
    }
  }, // end: build

  plugins: [
    // Leaflet

    viteStaticCopy({
      targets: [
        { src: PATH.leaflet + "/leaflet.{js,js.map}", dest: PATH.dist + "/js" },
        { src: PATH.leaflet + "/images/*.png", dest: PATH.dist + "/css/images/" },
        { src: PATH.leaflet + "/*.{css,css.map}", dest: PATH.dist + "/css" },
        { src: PATH.static + "/**/*", dest: PATH.dist }
      ]
    }),

    // -- svg images

    plg_svg2svg(
      [
        { src: PATH.src + "/svg/empty_favicon.svg", dest: PATH.dist + "/img/empty_favicon.svg" },
        { src: PATH.src + "/svg/select-dark.svg", dest: PATH.dist + "/img/select-dark.svg" },
        { src: PATH.src + "/svg/select-light.svg", dest: PATH.dist + "/img/select-light.svg" }
      ],
      svg2svg_opts
    ),

    // SearXNG brand (static)

    plg_svg2png([
      { src: PATH.brand + "/searxng-wordmark.svg", dest: PATH.dist + "/img/favicon.png" },
      { src: PATH.brand + "/searxng.svg", dest: PATH.dist + "/img/searxng.png" }
    ]),

    // -- svg
    plg_svg2svg(
      [
        { src: PATH.brand + "/searxng.svg", dest: PATH.dist + "/img/searxng.svg" },
        { src: PATH.brand + "/img_load_error.svg", dest: PATH.dist + "/img/img_load_error.svg" }
      ],
      svg2svg_opts
    ),

    // -- favicon
    plg_svg2svg(
      [{ src: PATH.brand + "/searxng-wordmark.svg", dest: PATH.dist + "/img/favicon.svg" }],
      svg2svg_favicon_opts
    ),

    // -- simple templates
    plg_svg2svg(
      [{ src: PATH.brand + "/searxng-wordmark.svg", dest: PATH.templates + "/searxng-wordmark.min.svg" }],
      svg2svg_opts
    )
  ] // end: plugins
});