.eslintrc.js

module.exports = {
  root: true,
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 2022,
    sourceType: 'module',
  },
  plugins: [
    '@typescript-eslint',
  ],
  extends: [
    'eslint:recommended',
  ],
  env: {
    node: true,
    es2022: true,
  },
  rules: {
    // TypeScript specific rules
    '@typescript-eslint/no-unused-vars': ['warn', { 'argsIgnorePattern': '^_' }],
    'no-unused-vars': 'off', // Let TypeScript handle this
    
    // General code quality rules
    'no-console': 'off', // CLI tool needs console output
    'prefer-const': 'error',
    'no-var': 'error',
    'no-undef': 'off', // TypeScript handles this
    
    // Code style - enforce consistent formatting
    'semi': ['error', 'always'],
    'quotes': ['error', 'single', { 'avoidEscape': true }],
    'indent': ['error', 2, { 'SwitchCase': 1 }],
    'comma-dangle': ['error', 'always-multiline'],
    'object-curly-spacing': ['error', 'always'],
    'array-bracket-spacing': ['error', 'never'],
    
    // Code quality
    'no-useless-escape': 'warn',
    'no-unreachable': 'error',
    'no-constant-condition': 'warn',
    'eqeqeq': 'error',
    'no-trailing-spaces': 'error',
    'eol-last': 'error',
  },
  ignorePatterns: [
    'lib/',
    'node_modules/',
    '*.js',
    '.eslintrc.js',
    'templates/',
    'tests/',
  ],
};