Support both ejs and cjs

package.json

@@ -1,22 +1,27 @@
 {
   "name": "apns2",
-  "version": "12.0.0",
+  "version": "12.1.0-beta.1",
   "description": "Node client for connecting to Apple's Push Notification Service using the new HTTP/2 protocol with JSON web tokens.",
   "author": "Andrew Barba <[email protected]>",
   "license": "MIT",
   "type": "module",
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
+  "main": "./dist/cjs/index.js",
+  "module": "./dist/esm/index.js",
+  "types": "./dist/index.d.ts",
   "exports": {
-    ".": "./dist/index.js"
+    ".": {
+      "import": "./dist/esm/index.js",
+      "require": "./dist/cjs/index.js",
+      "types": "./dist/index.d.ts"
+    }
   },
   "engines": {
     "node": ">=20"
   },
   "repository": {
     "url": "https://github.com/AndrewBarba/apns2"
   },
-  "files": ["dist"],
+  "files": ["dist", "dist/cjs", "dist/esm"],
   "keywords": [
     "apn",
     "apns",
@@ -45,7 +50,13 @@
     "vitest": "^2.1.6"
   },
   "scripts": {
-    "build": "tsc",
+    "clean": "rm -rf dist",
+    "build": "npm run clean && npm run build:cjs && npm run build:esm && npm run build:package-files",
+    "build:cjs": "tsc -p tsconfig.cjs.json",
+    "build:esm": "tsc -p tsconfig.esm.json",
+    "build:package-files": "npm run build:package-files:cjs && npm run build:package-files:esm",
+    "build:package-files:cjs": "echo '{\"type\":\"commonjs\"}' > dist/cjs/package.json",
+    "build:package-files:esm": "echo '{\"type\":\"module\"}' > dist/esm/package.json",
     "lint": "biome ci src test",
     "lint:format": "biome format --write src test",
     "lint:check": "biome check --write --unsafe src test",

tsconfig.cjs.json

@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "module": "CommonJS",
+    "moduleResolution": "node",
+    "outDir": "./dist/cjs"
+  }
+}

tsconfig.esm.json

@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "module": "ESNext",
+    "moduleResolution": "node",
+    "outDir": "./dist/esm"
+  }
+}

tsconfig.json

@@ -2,8 +2,9 @@
   "extends": "@tsconfig/node20",
   "compilerOptions": {
     "declaration": true,
-    "outDir": "dist"
+    "declarationDir": "./dist",
+    "outDir": "./dist",
+    "rootDir": "./src"
   },
-  "include": ["src"],
-  "exclude": ["dist"]
+  "include": ["src"]
 }