eslint.config.js

// eslint.config.js
import js from '@eslint/js';
import ts from 'typescript-eslint';
import prettierRecommended from 'eslint-plugin-prettier/recommended';
import importPlugin from 'eslint-plugin-import';
import unusedImports from 'eslint-plugin-unused-imports';
import pluginPromise from 'eslint-plugin-promise';

export default ts.config(
  js.configs.recommended,
  ts.configs.recommendedTypeChecked,
  prettierRecommended,
  importPlugin.flatConfigs.recommended,
  pluginPromise.configs['flat/recommended'],
  {
    languageOptions: {
      parserOptions: {
        project: ['tsconfig.json', './packages/**/tsconfig.json'],
        tsconfigRootDir: import.meta.dirname,
      },
    },
    plugins: {
      'unused-imports': unusedImports,
    },
    rules: {
      // Basic code quality rules
      'no-console': 'off',
      'prefer-const': 'warn',
      'no-var': 'warn',
      eqeqeq: ['warn', 'always'],

      // Light complexity rules
      complexity: ['warn', { max: 20 }],
      'max-depth': ['warn', { max: 4 }],
      'max-lines-per-function': ['warn', { max: 150 }],

      '@typescript-eslint/no-unsafe-assignment': 'off',
      '@typescript-eslint/no-explicit-any': 'off',
      '@typescript-eslint/no-unsafe-member-access': 'off',
      '@typescript-eslint/no-unsafe-call': 'off',
      '@typescript-eslint/no-unsafe-return': 'off',
      '@typescript-eslint/no-unsafe-argument': 'off',
      '@typescript-eslint/no-explicit-any': 'off',
      '@typescript-eslint/no-unused-vars': [
        'error',
        { argsIgnorePattern: '^_', varsIgnorePattern: '^_' },
      ],

      'import/no-unresolved': 'off',
      'import/named': 'off',
      'import/extensions': [
        'error',
        'ignorePackages',
        { js: 'always', ts: 'never' },
      ],

      'no-unused-vars': 'off', // or "@typescript-eslint/no-unused-vars": "off",
      'unused-imports/no-unused-imports': 'error',

      'promise/always-return': 'error',
      'promise/no-return-wrap': 'error',
      'promise/param-names': 'error',
      'promise/catch-or-return': 'error',
      'promise/no-native': 'off',
      'promise/no-nesting': 'warn',
      'promise/no-promise-in-callback': 'warn',
      'promise/no-callback-in-promise': 'warn',
      'promise/avoid-new': 'off',
      'promise/no-new-statics': 'error',
      'promise/no-return-in-finally': 'warn',
      'promise/valid-params': 'warn',
      'promise/no-multiple-resolved': 'error',
    },
  },
);