eslint.config.mjs

import js from "@eslint/js";
import css from "@eslint/css";
import { tailwindSyntax } from "@eslint/css/syntax";
import globals from "globals";
import perfectionist from "eslint-plugin-perfectionist";
import reactHooks from "eslint-plugin-react-hooks";
import reactRefresh from "eslint-plugin-react-refresh";
import tseslint from "typescript-eslint";
import eslintConfigPrettier from "eslint-config-prettier";
import storybook from "eslint-plugin-storybook";

export default tseslint.config(
  { ignores: ["dist"] },
  {
    extends: [
      js.configs.recommended,
      ...tseslint.configs.recommended,
      eslintConfigPrettier,
      perfectionist.configs["recommended-alphabetical"],
    ],
    files: ["**/*.{ts,tsx,js}"],
    languageOptions: {
      ecmaVersion: 2020,
      globals: globals.browser,
    },
    plugins: {
      "react-hooks": reactHooks,
      "react-refresh": reactRefresh,
      storybook: storybook,
    },
    rules: {
      ...reactHooks.configs.recommended.rules,
      "react-refresh/only-export-components": [
        "warn",
        { allowConstantExport: true },
      ],
      "@typescript-eslint/no-unused-vars": [
        "warn", // or "error"
        {
          argsIgnorePattern: "^_",
          varsIgnorePattern: "^_",
          caughtErrorsIgnorePattern: "^_",
        },
      ],
    },
  },
  {
    // Disable perfectionist sorting for router files. Due to the complex types in
    // tanstack-router, some of the objects require an explicit custom order where
    // some properties must be declared before others.
    files: ["**/routes/**/*.{ts,tsx}"],
    rules: {
      "perfectionist/sort-objects": "off",
    },
  },
  {
    files: ["**/*.css"],
    plugins: {
      css,
    },
    language: "css/css",
    languageOptions: {
      customSyntax: tailwindSyntax,
      tolerant: true,
    },
    rules: {
      "css/no-duplicate-imports": "error",
    },
  },
);