Add files

src/main/utils.ts

@@ -0,0 +1,31 @@
+/* eslint import/prefer-default-export: off, import/no-mutable-exports: off */
+import path from 'path';
+import process from 'process';
+import { URL } from 'url';
+
+export let resolveHtmlPath: (htmlFileName: string) => string;
+
+if (process.env.NODE_ENV === 'development') {
+  const port = process.env.PORT || 4343;
+  resolveHtmlPath = (htmlFileName: string) => {
+    const url = new URL(`http://localhost:${port}`);
+    url.pathname = htmlFileName;
+    return url.href;
+  };
+} else {
+  resolveHtmlPath = (htmlFileName: string) => {
+    return `file://${path.resolve(__dirname, '../renderer/', htmlFileName)}`;
+  };
+}
+
+export const isMacOS = () => {
+  return process.platform === 'darwin';
+};
+
+export const isWindows = () => {
+  return process.platform === 'win32';
+};
+
+export const isLinux = () => {
+  return process.platform === 'linux';
+};