65 lines
2.3 KiB
TypeScript
65 lines
2.3 KiB
TypeScript
import dotenv from "dotenv";
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import { fileTypeFromFile } from "file-type";
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import { FileTypeResult } from "file-type/core";
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import fs from "fs-extra";
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import gm from "gm";
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import path from "path";
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import { logger } from "../server.js";
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import { FolderPaths } from "./serverInit.js";
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dotenv.config({
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path: path.resolve(process.cwd(), `.env.${process.env.NODE_ENV || "development"}`)
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});
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const imageMagick = gm.subClass({ imageMagick: true });
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export async function ConvertHeicFiles(files: Express.Multer.File[]) {
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const validFiles = await filterValidHeicFiles(files);
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await Promise.all(validFiles.map(async (file) => {
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const convertedFileName = `${path.parse(path.basename(file.originalname)).name}-${Math.floor(Date.now() / 1000)}.jpeg`;
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try {
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await ConvertToJpeg(file.path, `${file.destination}/${convertedFileName}`);
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logger.log("debug", `Converted ${file.filename} image to JPEG from HEIC.`);
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await handleOriginalFile(file, convertedFileName);
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file.filename = convertedFileName;
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file.mimetype = "image/jpeg";
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file.path = `${file.destination}/${convertedFileName}`;
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} catch (error) {
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logger.log("error", `Error converting ${file.filename} image to JPEG from HEIC. ${JSON.stringify(error)}`);
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}
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}));
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}
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async function filterValidHeicFiles(files: Express.Multer.File[]) {
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const validFiles = [];
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for (const file of files) {
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const type: FileTypeResult | undefined = await fileTypeFromFile(file.path);
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if (type?.mime === "image/heic") {
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validFiles.push(file);
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}
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}
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return validFiles;
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}
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async function handleOriginalFile(file: Express.Multer.File, convertedFileName: string) {
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if (process.env.KEEP_CONVERTED_ORIGINALS) {
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await fs.ensureDir(path.join(file.destination, FolderPaths.ConvertedOriginalSubDir));
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await fs.move(file.path, `${path.join(file.destination, FolderPaths.ConvertedOriginalSubDir)}/${file.filename}`);
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} else {
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await fs.unlink(file.path);
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}
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}
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async function ConvertToJpeg(file: string, newPath: string) {
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const fileOnDisk: Buffer = await fs.readFile(file);
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return new Promise<string>((resolve, reject) => {
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imageMagick(fileOnDisk)
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.setFormat("jpg")
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.write(newPath, (error) => {
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if (error) reject(error.message);
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resolve(newPath);
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});
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});
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}
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