eslint.config.mjs

import { FlatCompat } from "@eslint/eslintrc";
import js from "@eslint/js";
import typescriptEslint from "@typescript-eslint/eslint-plugin";
import eslintPluginImport from "eslint-plugin-import";
import eslintPluginPrettierRecommended from "eslint-plugin-prettier/recommended";
import eslintPluginTsdoc from "eslint-plugin-tsdoc";
import pluginVue from "eslint-plugin-vue";
import parser from "vue-eslint-parser";
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: [
      "**/node_modules/",
      "**/dist/",
      "rendering/wikimodel/src/wikimodel-teavm.js",
      "resources/",
    ],
  },
  ...compat.extends(
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
  ),
  ...pluginVue.configs["flat/recommended"],
  eslintPluginPrettierRecommended,
  {
    languageOptions: {
      parserOptions: {
        // Eslint doesn't supply ecmaVersion in `parser.js` `context.parserOptions`
        // This is required to avoid ecmaVersion < 2015 error or 'import' / 'export' error
        ecmaVersion: 2015,
        sourceType: "module",
      },
    },
    plugins: { import: eslintPluginImport },
    settings: {
      // This will do the trick
      "import/parsers": {
        espree: [".js", ".cjs", ".mjs", ".jsx"],
      },
      "import/resolver": {
        typescript: true,
        node: true,
      },
    },
    rules: {
      ...eslintPluginImport.configs["recommended"].rules,
      "import/order": [
        "error",
        {
          groups: [
            "index",
            "sibling",
            "parent",
            "internal",
            "external",
            "builtin",
            "object",
            "type",
          ],
          alphabetize: {
            order: "asc",
          },
          named: { import: true, export: true },
        },
      ],
      "import/export": "error",
      "import/group-exports": "error",
      "import/consistent-type-specifier-style": ["error", "prefer-top-level"],
      curly: "error",
      "max-statements": "error",
    },
  },
  {
    plugins: {
      tsdoc: eslintPluginTsdoc,
    },
    rules: {
      "tsdoc/syntax": "error",
    },
  },
  {
    plugins: {
      "@typescript-eslint": typescriptEslint,
    },

    languageOptions: {
      parser: parser,
      ecmaVersion: "latest",
      sourceType: "module",

      parserOptions: {
        parser: "@typescript-eslint/parser",
      },
    },

    rules: {
      "prettier/prettier": "error",
      "vue/no-deprecated-slot-attribute": "off",
    },
  },
];