From e7b4390af64dd91bb2a0dcda3fb126a11ff97d44 Mon Sep 17 00:00:00 2001
From: Mark Silverwood <msilverwood@gmail.com>
Date: Fri, 27 Jan 2023 13:55:01 +0000
Subject: [PATCH] add cjs build versions

---
 .size-limit.js   |  7 ++++++-
 index.cjs        |  4 ++--
 package.json     | 12 ++++++------
 rollup.config.js | 29 +++++++++++++++++------------
 4 files changed, 31 insertions(+), 21 deletions(-)

diff --git a/.size-limit.js b/.size-limit.js
index 13b467424..d7d93853d 100644
--- a/.size-limit.js
+++ b/.size-limit.js
@@ -1,9 +1,14 @@
 // eslint-env node
 
 module.exports = [
+	{
+		name: 'CJS',
+		path: 'dist/lightweight-charts.production.cjs',
+		limit: '44.1 KB',
+	},
 	{
 		name: 'ESM',
-		path: 'dist/lightweight-charts.esm.production.js',
+		path: 'dist/lightweight-charts.production.mjs',
 		limit: '44.0 KB',
 	},
 	{
diff --git a/index.cjs b/index.cjs
index 797206bac..7e397576c 100644
--- a/index.cjs
+++ b/index.cjs
@@ -1,7 +1,7 @@
 'use strict';
 
 if (process.env.NODE_ENV === 'production') {
-	module.exports = require('./dist/lightweight-charts.esm.production.js');
+	module.exports = require('./dist/lightweight-charts.production.cjs');
 } else {
-	module.exports = require('./dist/lightweight-charts.esm.development.js');
+	module.exports = require('./dist/lightweight-charts.development.cjs');
 }
diff --git a/package.json b/package.json
index c4b8f3a94..842a906d7 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "type": "git",
     "url": "https://github.com/tradingview/lightweight-charts.git"
   },
-  "module": "dist/lightweight-charts.esm.production.js",
+  "module": "dist/lightweight-charts.production.mjs",
   "main": "index.cjs",
   "typings": "dist/typings.d.ts",
   "exports": {
@@ -20,17 +20,17 @@
     ".": {
       "development": {
         "types": "./dist/typings.d.ts",
-        "import": "./dist/lightweight-charts.esm.development.js",
-        "require": "./dist/lightweight-charts.esm.development.js"
+        "import": "./dist/lightweight-charts.development.mjs",
+        "require": "./dist/lightweight-charts.development.cjs"
       },
       "production": {
         "types": "./dist/typings.d.ts",
-        "import": "./dist/lightweight-charts.esm.production.js",
-        "require": "./dist/lightweight-charts.esm.production.js"
+        "import": "./dist/lightweight-charts.production.mjs",
+        "require": "./dist/lightweight-charts.production.cjs"
       },
       "default": {
         "types": "./dist/typings.d.ts",
-        "import": "./dist/lightweight-charts.esm.production.js",
+        "import": "./dist/lightweight-charts.production.mjs",
         "require": "./index.cjs"
       }
     }
diff --git a/rollup.config.js b/rollup.config.js
index 91d57a10b..37a518b71 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -15,16 +15,19 @@ function getCurrentVersion() {
 
 const currentVersion = getCurrentVersion();
 
-function getConfig(inputFile, type, isProd) {
-	const isModular = type === 'module';
-	const suffix = isModular ? 'esm' : 'standalone';
+function getConfig(inputFile, format, isProd) {
+	const isStandalone = format === 'iife';
 	const mode = isProd ? 'production' : 'development';
-
+	const extension = {
+		cjs: 'cjs',
+		esm: 'mjs',
+		iife: 'js',
+	}[format];
 	const config = {
 		input: inputFile,
 		output: {
-			format: isModular ? 'esm' : 'iife',
-			file: `./dist/lightweight-charts.${suffix}.${mode}.js`,
+			format,
+			file: `./dist/lightweight-charts${isStandalone ? '.standalone' : ''}.${mode}.${extension}`,
 			banner: `
 /*!
  * @license
@@ -50,28 +53,30 @@ function getConfig(inputFile, type, isProd) {
 					inline_script: true,
 				},
 				mangle: {
-					module: (type === 'module'),
+					module: (format === 'esm' || format === 'cjs'),
 					properties: {
 						regex: /^_(private|internal)_/,
 					},
 				},
 			}),
 		],
-		external: id => isModular && /^fancy-canvas(\/.+)?$/.test(id),
+		external: id => !isStandalone && /^fancy-canvas(\/.+)?$/.test(id),
 	};
 
 	return config;
 }
 
 const configs = [
-	getConfig('./lib/prod/src/index.js', 'module', false),
-	getConfig('./lib/prod/src/standalone.js', 'standalone', false),
+	getConfig('./lib/prod/src/index.js', 'esm', false),
+	getConfig('./lib/prod/src/index.js', 'cjs', false),
+	getConfig('./lib/prod/src/standalone.js', 'iife', false),
 ];
 
 if (process.env.NODE_ENV === 'production') {
 	configs.push(
-		getConfig('./lib/prod/src/index.js', 'module', true),
-		getConfig('./lib/prod/src/standalone.js', 'standalone', true)
+		getConfig('./lib/prod/src/index.js', 'esm', true),
+		getConfig('./lib/prod/src/index.js', 'cjs', true),
+		getConfig('./lib/prod/src/standalone.js', 'iife', true)
 	);
 }