const s3Storage = require("./s3Storage");

const PDF_PREFIX = "uploads/pdf";
const BOOK_SLIDE_PREFIX = "uploads/books";

const uploadPdf = async (fileData, fileName) => {
  const key = `${PDF_PREFIX}/${fileName}`;
  await s3Storage.uploadBuffer(key, fileData, "application/pdf");
  return {
    fileName,
    url: s3Storage.getPublicUrl(key),
  };
};

const uploadBookSlide = async (buffer, imageName) => {
  const key = `${BOOK_SLIDE_PREFIX}/${imageName}.jpeg`;
  await s3Storage.uploadBuffer(key, buffer, "image/jpeg");
  return s3Storage.getPublicUrl(key);
};

const deletePdf = async (fileName) => {
  if (!fileName) return;

  try {
    await s3Storage.deleteObject(`${PDF_PREFIX}/${fileName}`);
  } catch (error) {
    console.log("Failed to delete PDF from S3:", error?.message);
  }
};

const deleteBookSlide = async (imageName) => {
  if (!imageName) return;

  try {
    await s3Storage.deleteObject(`${BOOK_SLIDE_PREFIX}/${imageName}.jpeg`);
  } catch (error) {
    console.log("Failed to delete book slide from S3:", error?.message);
  }
};

module.exports = {
  PDF_PREFIX,
  BOOK_SLIDE_PREFIX,
  uploadPdf,
  uploadBookSlide,
  deletePdf,
  deleteBookSlide,
};