#!/usr/bin/env node
// -----------------------------------------------------------------------------
// Lou-Ka — kit Figma · build.mjs
// Assemble plugin/code.js = `var REFS = [...]` (captures + photos réduites,
// base64) + plugin/src/code.js. À relancer après shots.mjs ou toute édition
// de plugin/src/code.js.
// -----------------------------------------------------------------------------
import { readFileSync, writeFileSync, readdirSync, mkdirSync, existsSync, statSync } from "node:fs";
import { execSync } from "node:child_process";
import path from "node:path";

const ROOT = new URL(".", import.meta.url).pathname;
const REF = path.join(ROOT, "references");
const TMP = path.join(ROOT, "plugin", ".embed");
mkdirSync(TMP, { recursive: true });

function dims(file) {
  const out = execSync(`sips -g pixelWidth -g pixelHeight "${file}"`).toString();
  return { w: +out.match(/pixelWidth: (\d+)/)[1], h: +out.match(/pixelHeight: (\d+)/)[1] };
}
/** Réduit une image (largeur max + qualité JPEG) dans .embed/ et renvoie l'entrée REFS. */
function embed(file, kind, maxW, quality) {
  const out = path.join(TMP, `${kind}-${path.basename(file)}`);
  execSync(`sips -s format jpeg -s formatOptions ${quality} -Z ${maxW} "${file}" --out "${out}" >/dev/null 2>&1`);
  const { w, h } = dims(out);
  return { name: path.basename(file, ".jpg"), kind, w, h, b64: readFileSync(out).toString("base64") };
}

const refs = [];
const fold = path.join(REF, "fold");
if (existsSync(fold)) for (const f of readdirSync(fold).filter((f) => f.endsWith(".jpg")).sort()) {
  refs.push(embed(path.join(fold, f), "shot", f.startsWith("desktop") ? 1440 : 780, 72));
}
const photos = path.join(REF, "photos");
if (existsSync(photos)) for (const f of readdirSync(photos).filter((f) => /^photo-\d+\.jpg$/.test(f)).sort()) {
  refs.push(embed(path.join(photos, f), "photo", 560, 74));
}

const src = readFileSync(path.join(ROOT, "plugin/src/code.js"), "utf8");
const header = `// GÉNÉRÉ par build.mjs le ${new Date().toISOString()} — ne pas éditer : modifier plugin/src/code.js\n`;
const out = `${header}var REFS = ${JSON.stringify(refs)};\n${src}`;
writeFileSync(path.join(ROOT, "plugin/code.js"), out);

const kb = (n) => `${(n / 1024).toFixed(0)} Ko`;
console.log(`plugin/code.js écrit : ${kb(statSync(path.join(ROOT, "plugin/code.js")).size)} — ${refs.filter((r) => r.kind === "shot").length} captures, ${refs.filter((r) => r.kind === "photo").length} photos embarquées`);
for (const r of refs) console.log(`  · ${r.kind.padEnd(5)} ${r.name.padEnd(22)} ${r.w}×${r.h}  ${kb(r.b64.length * 0.75)}`);