newCashBook/epub_node/router/epub_old/font.js

import logger from "#logger";
import { files_insert, files_insert_link_epub } from "#db";
import { dirExists } from "#utils";
import fs from "node:fs";
import { calculateMD5 } from "./image.js";
import cliProgress from 'cli-progress';

export async function saveAllFount(epub, uploadPath, book_id, author_id) {
  dirExists(uploadPath);
  dirExists(`${uploadPath}font/`);

  // 获取原始数据源
  const getAllCss = epub.zip.names.filter((elm) => elm.includes("ttf"));
  const base_path = `${uploadPath}epub-extract/`;

  if (getAllCss.length) {
    const cssRes = await Promise.allSettled(
      getAllCss.map((img) => {
        return fs.promises.readFile(base_path + img, "utf8");
      })
    );

    const allCss_fulfilled = cssRes
      .map((img_fulfilled, index) => {
        const cssPath = getAllCss[index];
        if (img_fulfilled.status === "fulfilled") {
          return {
            index,
            path: base_path + cssPath,
            cssPath,
            css_data: img_fulfilled.value,
            mimeType: "font/ttf",
          };
        }
        return null;
      })
      .filter(Boolean);

    // Initialize the progress bar
    const progressBar = new cliProgress.SingleBar({}, cliProgress.Presets.shades_classic);
    progressBar.start(allCss_fulfilled.length, 0);

    await Promise.allSettled(
      allCss_fulfilled.map(async (elm, index) => {
        try {
          const md5 = await calculateMD5(elm.path);
          const elmName = elm.cssPath.split('/').pop();

          // Write the font data to a file
          await fs.promises.writeFile(`${uploadPath}font/${md5}.ttf`, elm.css_data);
          logger.info("Font data saved to " + md5);

          const params = {
            file_id: md5,
            md5: md5,
            mimetype: elm.mimeType,
            size: elm.css_data.length,
            name: elmName,
            path: `${uploadPath}font/${md5}.ttf`,
            source_id: md5,
          };

          await files_insert(params);
          await files_insert_link_epub({
            file_id: md5,
            book_id,
            author_id,
          });

          // Update the progress bar
          progressBar.update(index + 1);
        } catch (err) {
          logger.error("Error processing font:", err);
        }
      })
    );

    // Update the progress bar
    progressBar.update(allCss_fulfilled.length);

    // Stop the progress bar
    progressBar.stop();
  }
}