import React, { useState, useEffect } from 'react';
import { Link, useLocation } from 'react-router-dom';
import { FaLeaf, FaBars, FaTimes, FaSearch, FaChartBar, FaDatabase, FaMoon, FaSun } from 'react-icons/fa';
import { useTheme } from '../context/ThemeContext';
import api, { endpoints } from '../config/api';

const Navbar = () => {
  const [isOpen, setIsOpen] = useState(false);
  const [logos, setLogos] = useState([]);
  const location = useLocation();
  const { darkMode, toggleDarkMode } = useTheme();

  useEffect(() => {
    const fetchLogos = async () => {
      try {
        const response = await api.get(endpoints.mediaByType('Logo'));
        setLogos(response.data.data || []);
      } catch (error) {
        console.error('Error fetching logos:', error);
      }
    };
    fetchLogos();
  }, []);

  const isActive = (path) => location.pathname === path;

  const navItems = [
    { path: '/', label: 'Dashboard', icon: FaChartBar },
    { path: '/plants', label: 'Plants', icon: FaLeaf },
    { path: '/surveys', label: 'Surveys', icon: FaDatabase },
    { path: '/search', label: 'Search', icon: FaSearch },
    { path: '/statistics', label: 'Statistics', icon: FaChartBar },
    { path: '/about', label: 'About', icon: FaLeaf },
  ];

  return (
    <nav className="sticky top-0 z-50 bg-gradient-to-r from-primary-600 via-primary-500 to-emerald-600 dark:from-slate-900 dark:via-slate-800 dark:to-slate-900 text-white shadow-xl transition-all duration-300 border-b border-transparent dark:border-slate-700">
      <div className="container mx-auto px-4">
        <div className="flex justify-between items-center py-3">

          {/* Left Logo */}
          <Link to="/" className="flex items-center space-x-2 hover:scale-105 transition-transform">
            {logos[0] ? (
              <img
                src={`/images/logo_${logos[0].media_id}.png`}
                alt="Logo"
                className="h-10 w-auto object-contain"
                onError={(e) => {
                  if (!e.target.src.includes('.jpg')) {
                    e.target.src = `/images/logo_${logos[0].media_id}.jpg`;
                  } else {
                    e.target.style.display = 'none';
                  }
                }}
              />
            ) : (
              <div className="bg-white/20 p-1 rounded-lg">
                <FaLeaf className="text-white text-2xl" />
              </div>
            )}
            <span className="text-xl font-bold bg-gradient-to-r from-white to-green-100 dark:from-emerald-400 dark:to-emerald-300 bg-clip-text text-transparent">
              SeerBharat
            </span>
          </Link>

          {/* Center Nav Links */}
          <div className="hidden md:flex items-center space-x-1">
            {navItems.map((item) => (
              <Link
                key={item.path}
                to={item.path}
                className={`flex items-center space-x-2 px-4 py-2 rounded-lg transition-all duration-200 ${
                  isActive(item.path)
                    ? 'bg-white dark:bg-slate-700 text-primary-700 dark:text-emerald-400 shadow-lg scale-105 font-semibold'
                    : 'hover:bg-white/10 dark:hover:bg-slate-700/70 hover:scale-105 text-white dark:text-slate-200'
                }`}
              >
                <item.icon />
                <span>{item.label}</span>
              </Link>
            ))}
          </div>

          {/* Right: Logo2 + Dark Mode */}
          <div className="flex items-center space-x-3">
            {logos[1] && (
              <img
                src={`/images/logo_${logos[1].media_id}.png`}
                alt="Logo 2"
                className="h-10 w-auto object-contain"
                onError={(e) => {
                  if (!e.target.src.includes('.jpg')) {
                    e.target.src = `/images/logo_${logos[1].media_id}.jpg`;
                  } else {
                    e.target.style.display = 'none';
                  }
                }}
              />
            )}
            {/* Dark Mode Toggle - desktop */}
            <button
              onClick={toggleDarkMode}
              className="hidden md:block p-3 rounded-lg bg-white/20 backdrop-blur-md dark:bg-slate-700 text-white dark:text-yellow-400 hover:scale-110 hover:bg-white/30 dark:hover:bg-slate-600 transition-all duration-200 shadow-lg border border-white/20 dark:border-slate-600"
              title={darkMode ? 'Switch to Light Mode' : 'Switch to Dark Mode'}
            >
              {darkMode ? <FaSun className="text-xl animate-pulse" /> : <FaMoon className="text-xl" />}
            </button>
            {/* Mobile buttons */}
            <div className="flex items-center space-x-2 md:hidden">
              <button
                onClick={toggleDarkMode}
                className="p-2 rounded-lg bg-white/20 dark:bg-slate-700 text-white dark:text-yellow-400"
              >
                {darkMode ? <FaSun /> : <FaMoon />}
              </button>
              <button
                onClick={() => setIsOpen(!isOpen)}
                className="text-2xl focus:outline-none text-white"
              >
                {isOpen ? <FaTimes /> : <FaBars />}
              </button>
            </div>
          </div>

        </div>

        {/* Mobile Menu */}
        {isOpen && (
          <div className="md:hidden pb-4 animate-slide-in">
            {navItems.map((item) => (
              <Link
                key={item.path}
                to={item.path}
                onClick={() => setIsOpen(false)}
                className={`flex items-center space-x-2 px-4 py-3 rounded-lg mb-2 transition-all duration-200 ${
                  isActive(item.path)
                    ? 'bg-white dark:bg-slate-700 text-green-700 dark:text-emerald-400 font-semibold'
                    : 'hover:bg-green-500 dark:hover:bg-slate-700/70 text-white dark:text-slate-200'
                }`}
              >
                <item.icon />
                <span>{item.label}</span>
              </Link>
            ))}
          </div>
        )}
      </div>
    </nav>
  );
};

export default Navbar;