doukutsu-rs.github.io/eslint.config.mjs

import { FlatCompat } from "@eslint/eslintrc";
import js from "@eslint/js";
import typescriptEslint from "@typescript-eslint/eslint-plugin";
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,
});

/**
 * @type {import("eslint").Linter.Config[]}
 */
const config = [
  {
    ignores: ["src/common/api/*"],
  },
  ...compat.extends(
    "next/core-web-vitals",
    "plugin:@typescript-eslint/recommended",
  ),
  {
    plugins: {
      "@typescript-eslint": typescriptEslint,
    },

    languageOptions: {
      ecmaVersion: 5,
      sourceType: "script",

      parserOptions: {
        project: "./tsconfig.json",
      },
    },

    rules: {
      "react/function-component-definition": [
        "error",
        {
          namedComponents: "function-declaration",
        },
      ],

      "react/jsx-curly-brace-presence": ["error", "never"],
      "react/jsx-no-useless-fragment": "error",
      "no-else-return": "error",
      "@typescript-eslint/no-explicit-any": "error",
      "@typescript-eslint/array-type": [
        "error",
        {
          default: "generic",
        },
      ],
      "@typescript-eslint/consistent-type-imports": "error",
      "@typescript-eslint/consistent-type-exports": "error",
      "@typescript-eslint/no-non-null-asserted-nullish-coalescing": "error",
      "no-shadow": "off",
      "@typescript-eslint/no-shadow": "error",
      "@typescript-eslint/no-unnecessary-condition": "error",
      "@typescript-eslint/no-unnecessary-boolean-literal-compare": "error",
      "@typescript-eslint/prefer-nullish-coalescing": "error",
      "@typescript-eslint/prefer-optional-chain": "error",
      "@typescript-eslint/prefer-ts-expect-error": "error",
      "@typescript-eslint/no-unused-vars": [
        "error",
        {
          argsIgnorePattern: "^_",
          varsIgnorePattern: "^_",
          caughtErrorsIgnorePattern: "^_",
        },
      ],
    },
  },
];

export default config;