// ESLint 9+ flat config format (global default)
// See: https://eslint.org/docs/latest/use/configure/configuration-files

export default [
  {
    files: ["**/*.js", "**/*.mjs", "**/*.cjs"],
    languageOptions: {
      ecmaVersion: "latest",
      sourceType: "module",
      globals: {
        // Browser globals
        console: "readonly",
        window: "readonly",
        document: "readonly",
        navigator: "readonly",
        // Node.js globals
        process: "readonly",
        __dirname: "readonly",
        __filename: "readonly",
        require: "readonly",
        module: "readonly",
        exports: "readonly",
        global: "readonly",
        Buffer: "readonly",
      },
    },
    rules: {
      // Recommended rules
      "no-undef": "error",
      "no-unused-vars": "warn",
      "no-unreachable": "warn",
      "no-constant-condition": "error",
      "no-duplicate-case": "error",
      
      // Best practices
      "eqeqeq": ["warn", "always"],
      "no-implicit-globals": "warn",
      
      // Style (minimal)
      "semi": ["warn", "always"],
      "quotes": ["warn", "double", { "avoidEscape": true }],
    },
  },
];