eslint.config.mjs

import globals from "globals";
import pluginJs from "@eslint/js";
import tsParser from "@typescript-eslint/parser";
import tsPlugin from "@typescript-eslint/eslint-plugin";

/** @type {import('eslint').Linter.Config[]} */
export default [
  {
    files: ["**/*.ts"],
    languageOptions: {
      parser: tsParser,
      parserOptions: {
        project: "./tsconfig.json",
        ecmaVersion: "latest",
        sourceType: "module",
        tsconfigRootDir: ".",
      },
    },
    plugins: {
      "@typescript-eslint": tsPlugin,
    },
    rules: {
      ...tsPlugin.configs.recommended.rules,
      ...tsPlugin.configs["recommended-requiring-type-checking"].rules,
      "@typescript-eslint/explicit-function-return-type": "error",
      "@typescript-eslint/no-explicit-any": "error",
      "@typescript-eslint/no-unused-vars": [
        "error",
        {
          argsIgnorePattern: "^_",
          varsIgnorePattern: "^_",
        },
      ],
      "@typescript-eslint/strict-boolean-expressions": "error",
      "@typescript-eslint/no-floating-promises": "error",
      "@typescript-eslint/await-thenable": "error",
      "@typescript-eslint/no-misused-promises": [
        "error",
        {
          checksVoidReturn: false, // Allows Promises in places like `afterAll`
        },
      ],
      "@typescript-eslint/restrict-template-expressions": "error",
    },
  },
  {
    files: ["**/*.{js,mjs,cjs}"],
    ...pluginJs.configs.recommended,
  },
  {
    languageOptions: {
      globals: {
        ...globals.node,
        ...globals.jest,
      },
    },
  },
];