// DSMMG icon builder
// - Émet un bundle complet (icons.css) avec base + toutes les classes
// - Émet aussi des modules par icône (each/<name>.css) pour permettre le
//   tree-shaking côté consommateur (import "@managemate/icons/each/check-line").
// - Émet le module base.css (la classe .mmg-icon + sizes) en stand-alone,
//   utile quand on n'importe que des icônes individuelles.
import { readFile, writeFile, mkdir, rm } from "node:fs/promises";
import { join, dirname } from "node:path";
import { fileURLToPath } from "node:url";
import { existsSync } from "node:fs";

const __dirname = dirname(fileURLToPath(import.meta.url));
const REMIX_DIR = join(__dirname, "node_modules", "remixicon", "icons");
const DIST_DIR = join(__dirname, "dist");
const EACH_DIR = join(DIST_DIR, "each");

if (existsSync(DIST_DIR)) await rm(DIST_DIR, { recursive: true });
await mkdir(EACH_DIR, { recursive: true });

const ICONS = [
  ["Arrows", "arrow-right"],
  ["Arrows", "arrow-left"],
  ["Arrows", "arrow-up"],
  ["Arrows", "arrow-down"],
  ["Arrows", "arrow-right-up"],
  ["Arrows", "arrow-go-back"],
  ["Arrows", "expand-up-down"],
  ["System", "external-link"],
  ["System", "check"],
  ["System", "close"],
  ["System", "add"],
  ["System", "subtract"],
  ["System", "search-2"],
  ["System", "filter-3"],
  ["System", "more"],
  ["System", "more-2"],
  ["System", "menu"],
  ["System", "settings-3"],
  ["System", "refresh"],
  ["System", "delete-bin"],
  ["Design", "edit"],
  ["System", "share"],
  ["System", "download"],
  ["System", "upload"],
  ["System", "information"],
  ["System", "alert"],
  ["System", "error-warning"],
  ["System", "checkbox-circle"],
  ["System", "close-circle"],
  ["System", "question"],
  ["System", "spam"],
  ["System", "shield-check"],
  ["User & Faces", "user"],
  ["User & Faces", "user-add"],
  ["User & Faces", "team"],
  ["User & Faces", "account-circle"],
  ["System", "logout-box-r"],
  ["System", "login-box"],
  ["System", "lock"],
  ["System", "lock-unlock"],
  ["System", "eye"],
  ["System", "eye-off"],
  ["Business", "mail"],
  ["Business", "mail-send"],
  ["Communication", "message-2"],
  ["Device", "phone"],
  ["Media", "notification-3"],
  ["Communication", "chat-3"],
  ["Business", "global"],
  ["Business", "calendar"],
  ["Business", "calendar-check"],
  ["System", "time"],
  ["System", "history"],
  ["Document", "file-text"],
  ["Document", "file"],
  ["Document", "folder"],
  ["Document", "folder-open"],
  ["Document", "file-pdf"],
  ["Document", "file-copy"],
  ["Editor", "attachment"],
  ["Document", "draft"],
  ["Business", "inbox"],
  ["Map", "rocket-2"],
  ["Buildings", "home-4"],
  ["Buildings", "building"],
  ["Buildings", "store-2"],
  ["Buildings", "community"],
  ["Map", "map-pin-2"],
  ["Map", "map-2"],
  ["Finance", "money-euro-circle"],
  ["Finance", "bank-card"],
  ["Finance", "shopping-cart-2"],
  ["Finance", "shopping-bag-3"],
  ["Finance", "price-tag-3"],
  ["Finance", "coins"],
  ["Business", "briefcase-4"],
  ["Business", "line-chart"],
  ["Business", "bar-chart"],
  ["Business", "pie-chart"],
  ["Business", "stack"],
  ["System", "dashboard"],
  ["System", "apps-2"],
  ["System", "function"],
  ["Business", "presentation"],
  ["Document", "newspaper"],
  ["Document", "article"],
  ["Document", "book-open"],
  ["Business", "bookmark-3"],
  ["Health & Medical", "heart-3"],
  ["System", "star"],
  ["System", "thumb-up"],
  ["Design", "palette"],
  ["Design", "magic"],
  ["Weather", "flashlight"],
  ["Weather", "sun"],
  ["Weather", "moon"],
];

const BASE_CSS = `/* DSMMG icons — base (auto-generated). */
.mmg-icon {
  display: inline-block;
  width: 1.25em;
  height: 1.25em;
  vertical-align: -0.225em;
  background: currentColor;
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  -webkit-mask-size: contain;
  flex-shrink: 0;
}
.mmg-icon--xs { width: 12px; height: 12px; }
.mmg-icon--sm { width: 14px; height: 14px; }
.mmg-icon--md { width: 18px; height: 18px; }
.mmg-icon--lg { width: 24px; height: 24px; }
.mmg-icon--xl { width: 32px; height: 32px; }
.mmg-icon--2xl { width: 48px; height: 48px; }
`;

const rules = [];
const names = [];
const missing = [];

for (const [category, base, alias] of ICONS) {
  for (const variant of ["line", "fill"]) {
    const file = join(REMIX_DIR, category, `${base}-${variant}.svg`);
    if (!existsSync(file)) {
      missing.push(`${category}/${base}-${variant}`);
      continue;
    }
    const svg = (await readFile(file, "utf8"))
      .replace(/[\r\n]+/g, "")
      .replace(/"/g, "'")
      .replace(/\s+/g, " ")
      .trim();
    const url = `data:image/svg+xml,${encodeURIComponent(svg)}`;
    const className = `${alias ?? base}-${variant}`;
    const rule = `.mmg-icon-${className} { mask-image: url("${url}"); -webkit-mask-image: url("${url}"); }`;
    rules.push(rule);
    names.push(className);

    // Module subset par icône — n'inclut PAS la base, à charger séparément ou
    // implicitement via @managemate/icons/base.
    await writeFile(join(EACH_DIR, `${className}.css`), rule + "\n");
  }
}

// Bundle complet — base + toutes les classes
await writeFile(join(DIST_DIR, "icons.css"), BASE_CSS + "\n" + rules.join("\n") + "\n");
// Base seule — utile pour ceux qui font du subset
await writeFile(join(DIST_DIR, "base.css"), BASE_CSS);

await writeFile(join(DIST_DIR, "icons.json"), JSON.stringify(names, null, 2));
await writeFile(
  join(DIST_DIR, "names.js"),
  `export default ${JSON.stringify(names, null, 2)};\n`,
);
await writeFile(
  join(DIST_DIR, "names.d.ts"),
  `declare const names: string[];\nexport default names;\n`,
);

console.log(`Built ${names.length} icon classes (${ICONS.length} icons × 2 variants)`);
console.log(`  - dist/icons.css (bundle, ${BASE_CSS.length + rules.join("\n").length} bytes)`);
console.log(`  - dist/base.css (base only)`);
console.log(`  - dist/each/<name>.css (${names.length} per-icon modules)`);
if (missing.length) {
  console.warn(`Missing ${missing.length} files:`, missing.slice(0, 5));
}