import { defineConfig } from "vite";
import { cpSync, mkdirSync } from "node:fs";
import { join } from "node:path";

const pdfjsAssets = () => ({
  name: "pdfjs-assets",
  closeBundle() {
    const outDir = "web/static/vendor/pdfjs";
    const srcDir =
      "node_modules/@bookhoard/foliate-js/vendor/pdfjs";
    mkdirSync(outDir, { recursive: true });
    cpSync(join(srcDir, "standard_fonts"), join(outDir, "standard_fonts"), {
      recursive: true,
    });
    cpSync(join(srcDir, "cmaps"), join(outDir, "cmaps"), { recursive: true });
  },
});

export default defineConfig({
  resolve: {
    alias: {
      "@": "/web/src",
      "foliate-js": "/node_modules/@bookhoard/foliate-js",
    },
  },
  base: "/static/",
  plugins: [pdfjsAssets()],
  build: {
    outDir: "web/static",
    emptyOutDir: false,
    assetsDir: "",
    rollupOptions: {
      input: {
        main: "web/src/main.ts",
        reader: "web/src/reader/reader.ts",
      },
      output: {
        entryFileNames: "[name].js",
      },
    },
    target: "esnext",
    sourcemap: true,
    minify: "esbuild",
  },
});