eslint.config.mjs

import { FlatCompat } from "@eslint/eslintrc";
import js from "@eslint/js";
import typescriptEslint from "@typescript-eslint/eslint-plugin";
import tsParser from "@typescript-eslint/parser";
import checkFile from "eslint-plugin-check-file";
import globals from "globals";
import path from "node:path";
import { fileURLToPath } from "node:url";

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: [
      "**/.eslintrc.js",
      "**/*.config.js",
      "**/*.md",
      "**/build",
      "eslint.config.mjs",
      "coverage**/*",
      "*.history",
    ],
  },
  ...compat.extends("eslint:recommended", "plugin:@typescript-eslint/recommended"),
  {
    plugins: {
      "@typescript-eslint": typescriptEslint,
      "check-file": checkFile,
    },
    languageOptions: {
      globals: {
        ...globals.browser,
      },
      parser: tsParser,
      ecmaVersion: "latest",
      sourceType: "module",
      parserOptions: {
        project: "./tsconfig.eslint.json",
      },
    },

    rules: {
      indent: ["error", 2],
      "@typescript-eslint/prefer-nullish-coalescing": "error",
      "@typescript-eslint/strict-boolean-expressions": "error",
      "no-console": "error",
      "prefer-template": ["error"],
      "prefer-arrow-callback": ["error"],
      "func-style": ["error", "expression"],
      "prefer-destructuring": ["error", { object: true, array: true }],
      "check-file/filename-naming-convention": [
        "error",
        {
          "**/*.{ts,tsx}": "KEBAB_CASE",
        },
        {
          ignoreMiddleExtensions: true,
        },
      ],
      "check-file/folder-naming-convention": [
        "error",
        {
          "src/**/!^[.*": "KEBAB_CASE",
        },
      ],
    },
  },
];