import { copyFile, readFile, writeFile, readdir } from "node:fs/promises";
import { fileURLToPath } from "node:url";
import { compile } from "@tailwindcss/node";
import ts from "typescript";

await copyFile(
  fileURLToPath(import.meta.resolve("@takumi-rs/wasm/takumi_wasm_bg.wasm")),
  "public/takumi.wasm",
);
const globals = await readFile("app/globals.css", "utf8");
const theme = globals.slice(
  globals.indexOf("@theme inline {"),
  globals.indexOf("\n}", globals.indexOf("@theme inline {")) + 2,
);
const colors = globals.slice(
  globals.indexOf(":root,\n.dark"),
  globals.indexOf("\n}", globals.indexOf(":root,\n.dark")) + 2,
);
const candidates = new Set();
const files = (await readdir("lib/image-export/templates"))
  .filter((name) => name.endsWith(".tsx"))
  .map((name) => `lib/image-export/templates/${name}`);
files.push(
  "lib/catalog/rarity.ts",
  "lib/catalog/element.ts",
  "lib/guides/stats.ts",
);
for (const path of files) {
  const source = ts.createSourceFile(
    path,
    await readFile(path, "utf8"),
    ts.ScriptTarget.Latest,
    true,
    path.endsWith("tsx") ? ts.ScriptKind.TSX : ts.ScriptKind.TS,
  );
  function visit(node) {
    if (ts.isStringLiteralLike(node))
      node.text.split(/\s+/).forEach((token) => candidates.add(token));
    ts.forEachChild(node, visit);
  }
  visit(source);
}
const compiler = await compile(
  `@import "tailwindcss";\n${theme}\n${colors}\n:root { --font-anuphan: Anuphan; --font-geist-mono: Anuphan; }`,
  { base: process.cwd(), onDependency() {} },
);
await writeFile("public/takumi.css", compiler.build([...candidates]));