eslint.config.js

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

export default [
  js.configs.recommended,
  {
    files: ['**/*.ts', '**/*.js'],
    languageOptions: {
      parser: tsparser,
      parserOptions: {
        ecmaVersion: 2022,
        sourceType: 'module',
      },
      globals: {
        // Node.js globals
        console: 'readonly',
        process: 'readonly',
        Buffer: 'readonly',
        __dirname: 'readonly',
        __filename: 'readonly',
        global: 'readonly',
        setTimeout: 'readonly',
        clearTimeout: 'readonly',
        setInterval: 'readonly',
        clearInterval: 'readonly',
        // Web APIs we use
        fetch: 'readonly',
        URL: 'readonly',
      },
    },
    plugins: {
      '@typescript-eslint': tseslint,
    },
    rules: {
      ...tseslint.configs.recommended.rules,
      
      // Customize rules for this project (demo-friendly)
      '@typescript-eslint/no-unused-vars': ['warn', { argsIgnorePattern: '^_' }],
      '@typescript-eslint/no-explicit-any': 'warn',
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/no-non-null-assertion': 'warn',
      
      // General best practices
      'no-console': 'off', // We want console logs for this demo
      'prefer-const': 'warn', // Warn instead of error for demos
      'no-var': 'error',
      'no-case-declarations': 'warn', // Warn instead of error for demos
    },
  },
  {
    // Ignore compiled files and dependencies
    ignores: ['dist/**', 'node_modules/**'],
  },
];