Use a bundler to improve the compilation results

.gitignore

@@ -1,6 +1,7 @@
 .DS_Store
 node_modules
 lib
+dist
 yarn.lock
 package-lock.json
 

package.json

@@ -1,31 +1,35 @@
 {
   "name": "djangoinstant",
-  "version": "0.4.0",
+  "version": "0.5.0",
   "description": "Client for the django-instant websockets backend",
   "scripts": {
-    "build": "tsc",
+    "build": "rm -f dist/* && rollup -c",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "files": [
-    "/lib"
+    "/dist"
   ],
-  "main": "./lib/index.js",
-  "module": "./lib/index.js",
-  "types": "./lib/index.d.ts",
+  "main": "./dist/index.js",
+  "module": "./dist/index.es.js",
+  "types": "./dist/index.d.ts",
   "exports": {
     ".": {
-      "import": "./lib/index.js",
-      "require": "./lib/index.js"
+      "import": "./dist/index.es.js",
+      "require": "./dist/index.cjs.min.js"
     }
   },
   "dependencies": {
     "centrifuge": "^3.0.1"
   },
   "devDependencies": {
     "tslib": "^2.1.0",
-    "typescript": "^4.2.3"
+    "typescript": "^4.2.3",
+    "rollup": "^2.70.0",
+    "rollup-plugin-terser": "^7.0.2",
+    "@rollup/plugin-commonjs": "^21.0.2",
+    "@rollup/plugin-node-resolve": "^13.1.3",
+    "@rollup/plugin-typescript": "^8.3.1"
   },
-  "prepublish": "tsc",
   "author": "synw",
   "license": "MIT",
   "repository": {

rollup.config.js

@@ -0,0 +1,36 @@
+import resolve from '@rollup/plugin-node-resolve';
+import commonjs from '@rollup/plugin-commonjs';
+import typescript from '@rollup/plugin-typescript';
+import { terser } from 'rollup-plugin-terser';
+
+//const isProduction = !process.env.ROLLUP_WATCH;
+
+export default {
+  input: 'src/index.ts',
+  output: [
+    {
+      file: 'dist/index.cjs.min.js',
+      format: 'cjs',
+      plugins: [terser(),]
+    },
+    {
+      file: 'dist/index.es.js',
+      format: 'esm'
+    },
+    {
+      file: 'dist/index.min.js',
+      format: 'iife',
+      name: '$instant',
+      plugins: [terser()]
+    }],
+  plugins: [
+    typescript(),
+    resolve({
+      jsnext: true,
+      main: true,
+      browser: true,
+    }),
+    commonjs(),
+    //isProduction && terser({ format: { comments: false } }),
+  ],
+};