import proc from "node:child_process";
import fs from "node:fs/promises";
import ph from "node:path";

import log from "fancy-log";
import * as h from "./_helpers.js";
import ppt from "pretty-time";

const worker = h.startWorker();
let sass = null;

async function compileSassAll() {
  const start = process.hrtime();
  log.info("init: compile styles");
  try {
    sass = await h.compileSassAll(worker);
    let output = await h.concatSass(sass);
    await fs.writeFile("./resources/public/css/main.css", output);
  } catch (error) {
    log.error("Error during compileSassAll: ", error);
  }
  const end = process.hrtime(start);
  log.info("done: compile styles", `(${ppt(end)})`);
}

async function compileSass(path) {
  const start = process.hrtime();
  log.info("changed:", path);
  try {
    const result = await h.compileSass(worker, path, { modules: true });
    sass.index[result.outputPath] = result.css;

    const output = h.concatSass(sass);

    await fs.writeFile("./resources/public/css/main.css", output);
  } catch (error) {
    log.error("Error during compileSass: ", error);
  }
  const end = process.hrtime(start);
  log.info("done:", `(${ppt(end)})`);
}

await compileSassAll();
await h.copyAssets();
await h.compileSvgSprites();
await h.compileTemplates();
await h.compilePolyfills();

log.info("watch: scss src (~)");

h.watch("src", h.isSassFile, async function (path) {
  if (path.includes("common")) {
    await compileSassAll(path);
  } else {
    await compileSass(path);
  }
});

log.info("watch: scss: resources (~)");
h.watch("resources/styles", h.isSassFile, async function (path) {
  log.info("changed:", path);
  await compileSassAll();
});

log.info("watch: templates (~)");
h.watch("resources/templates", null, async function (path) {
  log.info("changed:", path);
  await h.compileTemplates();
});

log.info("watch: assets (~)");
h.watch(["resources/images", "resources/fonts", "resources/plugins-runtime"], null, async function (path) {
  log.info("changed:", path);
  await h.compileSvgSprites();
  await h.copyAssets();
  await h.compileTemplates();
});

process.on("exit", () => {
  worker.terminate();
});
