eslint.config.mjs

// eslint.config.mjs
import { dirname } from "path";
import { fileURLToPath } from "url";
import { FlatCompat } from "@eslint/eslintrc";
import eslint from "@eslint/js";
import tseslint from "typescript-eslint";

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

const compat = new FlatCompat({
  baseDirectory: __dirname,
});

const eslintConfig = [
  eslint.configs.recommended,
  ...tseslint.configs.recommended,
  ...compat.extends("next/core-web-vitals", "next/typescript"),
  
  // Global rules
  {
    rules: {
      // Allow unused variables that start with underscore
      "@typescript-eslint/no-unused-vars": ["warn", {
        "argsIgnorePattern": "^_",
        "varsIgnorePattern": "^_",
        "ignoreRestSiblings": true
      }],
      
      // Warn instead of error for prefer-const
      "prefer-const": "warn",
    }
  },
  
  // Specific rules for supabase middleware
  {
    files: ["src/lib/supabase/middleware.ts"],
    rules: {
      "prefer-const": "off" // Turn off just for this file
    }
  }
];

export default eslintConfig;