feat: move to full ESM, fully upgrade everything (#1)

.github/pull_request_template.md

@@ -0,0 +1,20 @@
+## Description
+
+Please include a summary of the changes and the related issue.
+
+## Related Issue
+
+Closes # (issue)
+
+## Type of change
+
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Breaking change
+- [ ] Documentation update
+
+## Checklist
+
+- [ ] My code follows the style guidelines of this project
+- [ ] I have performed a self-review of my own code
+- [ ] I have made corresponding changes to the documentation

.nvmrc

@@ -1 +1 @@
-20
+22

.swcrc

@@ -0,0 +1,27 @@
+{
+  "exclude": "node_modules/",
+  "jsc": {
+    "parser": {
+      "syntax": "typescript",
+      "topLevelAwait": true
+    },
+    "target": "esnext",
+    "baseUrl": ".",
+    "experimental": {
+      "plugins": [
+        [
+          "@swc/plugin-transform-imports",
+          {
+            "^(.*?)(\\.ts)$": {
+              "skipDefaultConversion": true,
+              "transform": "{{matches.[1]}}.js"
+            }
+          }
+        ]
+      ]
+    }
+  },
+  "module": {
+    "type": "nodenext"
+  }
+}

eslint.config.mjs

@@ -0,0 +1,76 @@
+import typescriptEslint from "@typescript-eslint/eslint-plugin";
+import globals from "globals";
+import tsParser from "@typescript-eslint/parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all,
+});
+
+export default [
+  {
+    ignores: ["**/dist/"],
+  },
+  ...compat.extends(
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+  ),
+  {
+    plugins: {
+      "@typescript-eslint": typescriptEslint,
+    },
+
+    languageOptions: {
+      globals: {
+        ...Object.fromEntries(
+          Object.entries(globals.browser).map(([key]) => [key, "off"]),
+        ),
+      },
+
+      parser: tsParser,
+      ecmaVersion: "latest",
+      sourceType: "module",
+    },
+
+    rules: {
+      indent: [
+        "error",
+        2,
+        {
+          offsetTernaryExpressions: true,
+        },
+      ],
+
+      "linebreak-style": ["error", "unix"],
+      quotes: ["error", "double"],
+      semi: ["error", "always"],
+      "comma-dangle": ["error", "always-multiline"],
+
+      "@typescript-eslint/no-unused-vars": [
+        "error",
+        {
+          varsIgnorePattern: "^_",
+        },
+      ],
+    },
+  },
+  {
+    files: ["**/.eslintrc.{js,cjs}"],
+
+    languageOptions: {
+      globals: {
+        ...globals.node,
+      },
+
+      ecmaVersion: 5,
+      sourceType: "commonjs",
+    },
+  },
+];

jest.config.ts

@@ -1,7 +1,18 @@
 import type { JestConfigWithTsJest } from "ts-jest";
 
 const jestConfig: JestConfigWithTsJest = {
-  preset: "ts-jest",
+  preset: "ts-jest/presets/default-esm", // Use ESM-compatible preset
+  extensionsToTreatAsEsm: [".ts"], // Treat these extensions as ESM
+  transform: {
+    "^.+\\.ts$": ["ts-jest", { useESM: true }], // Use ts-jest to handle TypeScript files with ESM
+  },
+  testEnvironment: "node", // Use Node.js environment
+  moduleNameMapper: {
+    "^(\\.{1,2}/.*)\\.js$": "$1", // Map module paths correctly
+  },
+  transformIgnorePatterns: [
+    "/node_modules/(?!chalk|ansi-escapes)", // Ensure node_modules are transformed correctly
+  ],
 };
 
 export default jestConfig;