eslint.config.mjs

// @ts-check
import eslint from '@eslint/js';
import tseslint from '@typescript-eslint/eslint-plugin';
import tsparser from '@typescript-eslint/parser';
import globals from 'globals';

export default [
  eslint.configs.recommended,
  {
    files: ['**/*.ts', '**/*.tsx', '**/*.mts', '**/*.cts'],
    languageOptions: {
      parser: tsparser,
      parserOptions: {
        ecmaVersion: 2020,
        sourceType: 'module',
      },
      globals: {
        ...globals.node,
        ...globals.es2020,
        // Type namespace provided by @types/node; no-undef cannot see it.
        NodeJS: 'readonly',
      },
    },
    plugins: {
      '@typescript-eslint': tseslint,
    },
    rules: {
      ...tseslint.configs.recommended.rules,
      '@typescript-eslint/no-explicit-any': 'warn',
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
      // Thrift generates CommonJS modules whose declaration files are not ES modules.
      '@typescript-eslint/no-require-imports': [
        'error',
        { allow: ['/thrift/generated/'] },
      ],
    },
  },
  {
    files: ['tests/**/*.ts', 'tests/**/*.tsx'],
    languageOptions: {
      globals: {
        ...globals.node,
        ...globals.jest,
      },
    },
  },
  {
    files: ['**/*.js', '**/*.mjs', '**/*.cjs'],
    languageOptions: {
      globals: {
        ...globals.node,
        ...globals.es2020,
      },
    },
  },
  {
    ignores: ['dist/', 'node_modules/', 'coverage/', 'src/thrift/generated/', '.jest-cache/'],
  },
];