astro/dist/assets/fonts/infra/unifont-font-resolver.js

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

import { createUnifont } from "unifont";
import { LOCAL_PROVIDER_NAME } from "../constants.js";
class UnifontFontResolver {
  #unifont;
  constructor({ unifont }) {
    this.#unifont = unifont;
  }
  static extractUnifontProviders({
    families,
    hasher
  }) {
    const hashes = /* @__PURE__ */ new Set();
    const providers = [];
    for (const { provider } of families) {
      if (provider === LOCAL_PROVIDER_NAME) {
        continue;
      }
      const unifontProvider = provider.provider(provider.config);
      const hash = hasher.hashObject({
        name: unifontProvider._name,
        ...provider.config
      });
      unifontProvider._name += `-${hash}`;
      provider.name = unifontProvider._name;
      if (!hashes.has(hash)) {
        hashes.add(hash);
        providers.push(unifontProvider);
      }
    }
    return providers;
  }
  static async create({
    families,
    hasher,
    storage
  }) {
    return new UnifontFontResolver({
      unifont: await createUnifont(this.extractUnifontProviders({ families, hasher }), {
        storage,
        // TODO: consider enabling, would require new astro errors
        throwOnError: false
      })
    });
  }
  async resolveFont({
    familyName,
    provider,
    ...rest
  }) {
    const { fonts } = await this.#unifont.resolveFont(familyName, rest, [provider]);
    return fonts;
  }
  async listFonts({ provider }) {
    return await this.#unifont.listFonts([provider]);
  }
}
export {
  UnifontFontResolver
};