eslint.config.mjs

// @ts-check

import eslint from '@eslint/js'
import tseslint from 'typescript-eslint'
import react from 'eslint-plugin-react'
import prettier from 'eslint-config-prettier'
import importPlugin from 'eslint-plugin-import-x'

export default tseslint.config(
  eslint.configs.recommended,
  ...tseslint.configs.recommendedTypeChecked,
  react.configs.flat.recommended,
  prettier,
  {
    files: ['**/*.ts', '**/*.tsx'],
    rules: {
      // FIXME: All of these rules should be errors instead
      '@typescript-eslint/no-base-to-string': 'warn',
      '@typescript-eslint/no-floating-promises': 'warn',
      '@typescript-eslint/no-for-in-array': 'warn',
      '@typescript-eslint/no-unsafe-argument': 'warn',
      '@typescript-eslint/no-unsafe-assignment': 'warn',
      '@typescript-eslint/no-unsafe-call': 'warn',
      '@typescript-eslint/no-unsafe-member-access': 'warn',
      '@typescript-eslint/no-unsafe-return': 'warn',
      '@typescript-eslint/require-await': 'warn',
      '@typescript-eslint/restrict-template-expressions': 'warn',
      '@typescript-eslint/unbound-method': 'warn',

      'react/no-unknown-property': [
        'error',
        { ignore: ['partition', 'allowpopups', 'useragent'] }
      ],
      '@typescript-eslint/no-misused-promises': [
        'error',
        { checksVoidReturn: false }
      ],
      'import/no-duplicates': 'error'
    },

    plugins: {
      import: importPlugin
    },
    languageOptions: {
      parserOptions: {
        project: './tsconfig.eslint.json',
        tsconfigRootDir: import.meta.dirname
      }
    },
    settings: {
      react: {
        version: 'detect'
      }
    }
  },
  {
    files: ['**/__tests__/**/*.ts', '**/__mocks__/**/*.ts'],
    rules: {
      '@typescript-eslint/no-explicit-any': 'off',
      'import/no-duplicates': 'off'
    }
  },
  {
    ignores: ['build/', '**/*.js', 'eslint.config.mjs']
  }
)