eslint.config.js

import eslint from '@eslint/js'
import tseslint from 'typescript-eslint'
import prettier from 'eslint-config-prettier'
import functional from 'eslint-plugin-functional'
import globals from 'globals'

export default tseslint.config(
  {
    files: ['**/*.{ts,tsx,mts}'],
    extends: [
      eslint.configs.recommended,
      ...tseslint.configs.recommended,
      functional.configs.recommended,
      prettier,
    ],
    languageOptions: {
      parser: tseslint.parser,
      parserOptions: {
        projectService: true,
      },
      globals: { ...globals.browser, ...globals.node },
    },
    rules: {
      'functional/prefer-immutable-types': 'warn',
      'no-unused-vars': 'off',
      'functional/functional-parameters': 'warn',
      'functional/no-expression-statements': [
        'error',
        {
          ignoreCodePattern: ['^console.'],
        },
      ],
    },
  },
  {
    files: ['**/*.test.ts', '**/*.{js,mjs,cjs}'],
    extends: [functional.configs.off],
    rules: {
      '@typescript-eslint/no-explicit-any': 'off',
    },
  },
  { ignores: ['dist', '.yarn', '.astro', '*.d.ts'] },
)