'use client';

import { useState, useEffect } from 'react';

export default function MetroLine() {
  const [currentStation, setCurrentStation] = useState(0);

  // Metro başlangıçtan Tuzluçayır'a (index 2) kadar ilerler ve durur
  useEffect(() => {
    const interval = setInterval(() => {
      setCurrentStation((prev) => {
        if (prev < 2) return prev + 1; // Sadece 2'ye kadar ilerle
        return 2; // Tuzluçayır'da dur
      });
    }, 3000); // Her 3 saniyede bir ilerle

    return () => clearInterval(interval);
  }, []);

  const stations = [
    { name: 'ABİDİN PAŞA', status: 'completed' },
    { name: 'AŞIK VEYSEL', status: 'completed' },
    { name: 'TUZLUÇAYIR', status: 'construction' },
    { name: 'GENERAL ZEKİ DOĞAN', status: 'planned' },
    { name: 'FAHRİ KORUTÜRK', status: 'planned' },
    { name: 'CENGİZHAN', status: 'planned' },
    { name: 'AKŞEMSETTİN', status: 'planned' },
    { name: 'NATOYOLU', status: 'planned' },
  ];

  const getStationStyle = (index: number, status: string) => {
    if (index === currentStation) {
      return 'w-16 h-16 bg-[#F59E0B] border-4 border-white shadow-2xl scale-110';
    }
    if (status === 'completed') {
      return 'w-14 h-14 bg-green-500 border-4 border-white shadow-lg';
    }
    return 'w-12 h-12 bg-gray-300 border-4 border-dashed border-gray-400 shadow-lg opacity-60';
  };

  const getTextStyle = (index: number, status: string) => {
    if (index === currentStation) {
      return 'text-[#F59E0B] font-bold';
    }
    if (status === 'completed') {
      return 'text-green-600 font-bold';
    }
    return 'text-gray-500 font-semibold';
  };

  // Her durak arası mesafe için progress hesaplama
  const totalStations = stations.length;
  const progressPercentage = (currentStation / (totalStations - 1)) * 100;

  return (
    <div className="bg-white rounded-2xl shadow-2xl p-8 lg:p-12">
      {/* Proje Başlığı */}
      <div className="flex items-center justify-between mb-8">
        <div className="flex items-center space-x-4">
          <div className="w-12 h-12 rounded-full bg-[#F59E0B] flex items-center justify-center">
            <svg className="w-6 h-6 text-white" fill="currentColor" viewBox="0 0 24 24">
              <path d="M13 3v6h3l-4 5-4-5h3V3m-1 11v7h-1c-1.1 0-2-.9-2-2v-5h3m10 0v5c0 1.1-.9 2-2 2h-1v-7h3z"/>
            </svg>
          </div>
          <div>
            <h3 className="text-2xl font-bold text-[#004B87]">A2 Metro Hattı İnşaatı</h3>
            <p className="text-[#6B7280]">Abidin Paşa - Natoyolu</p>
          </div>
        </div>
        <div className="text-right">
          <p className="text-sm text-[#6B7280]">İnşaat Durumu</p>
          <p className="text-2xl font-bold text-[#F59E0B]">{Math.round(progressPercentage)}%</p>
        </div>
      </div>

      {/* Metro Hat ve İnşaat Çizgisi */}
      <div className="relative mb-4">
        {/* Gri arka plan hattı (tüm hat) */}
        <div className="absolute top-6 left-0 right-0 h-2 bg-gray-300 rounded-full"></div>
        
        {/* Renkli ilerleme çubuğu - duraklar arası geçişle */}
        <div className="absolute top-6 left-0 h-2 bg-linear-to-r from-green-500 via-[#00B4D8] to-[#F59E0B] rounded-full transition-all duration-1000 ease-in-out" 
             style={{width: `${progressPercentage}%`}}>
        </div>

        {/* Duraklar Grid */}
        <div className="grid grid-cols-2 md:grid-cols-4 lg:grid-cols-8 gap-6 relative">
          {stations.map((station, index) => (
            <div key={index} className="flex flex-col items-center">
              <div className={`relative z-10 rounded-full flex items-center justify-center mb-3 transition-all duration-500 ${getStationStyle(index, station.status)}`}>
                {index === currentStation ? (
                  <>
                    {/* Metro simgesi - animasyonlu */}
                    <svg className="w-8 h-8 text-white" fill="currentColor" viewBox="0 0 24 24">
                      <path d="M12 2c-4 0-8 .5-8 4v9.5C4 17.43 5.57 19 7.5 19L6 20.5v.5h2l2-2h4l2 2h2v-.5L16.5 19c1.93 0 3.5-1.57 3.5-3.5V6c0-3.5-4-4-8-4zM7.5 17c-.83 0-1.5-.67-1.5-1.5S6.67 14 7.5 14s1.5.67 1.5 1.5S8.33 17 7.5 17zm3.5-6H6V6h5v5zm5.5 6c-.83 0-1.5-.67-1.5-1.5s.67-1.5 1.5-1.5 1.5.67 1.5 1.5-.67 1.5-1.5 1.5zm1.5-6h-5V6h5v5z"/>
                    </svg>
                    {/* Pulse efekti */}
                    <div className="absolute inset-0 rounded-full bg-[#F59E0B] animate-ping opacity-30"></div>
                  </>
                ) : station.status === 'completed' ? (
                  <svg className="w-6 h-6 text-white" fill="currentColor" viewBox="0 0 24 24">
                    <path d="M9 16.2L4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4L9 16.2z"/>
                  </svg>
                ) : (
                  <svg className="w-5 h-5 text-gray-500" fill="currentColor" viewBox="0 0 24 24">
                    <path d="M19 13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
                  </svg>
                )}
              </div>
              <span className={`text-center text-xs transition-all duration-300 ${getTextStyle(index, station.status)}`}>
                {station.name}
              </span>
              <span className={`text-xs transition-all duration-300 ${
                index === currentStation ? 'text-[#F59E0B] font-semibold' : 
                station.status === 'completed' ? 'text-green-600' : 'text-gray-400'
              }`}>
                {index === currentStation ? '🚇 Metro Burada' : 
                 station.status === 'completed' ? '✓ Tamamlandı' : 
                 '◯ Planlı'}
              </span>
            </div>
          ))}
        </div>
      </div>

      {/* Alt Bilgi */}
      <div className="mt-8 pt-6 border-t border-gray-200">
        <div className="flex flex-wrap gap-6 justify-center text-sm">
          <div className="flex items-center space-x-2">
            <div className="w-5 h-5 rounded-full bg-green-500 border-2 border-white flex items-center justify-center">
              <svg className="w-3 h-3 text-white" fill="currentColor" viewBox="0 0 24 24">
                <path d="M9 16.2L4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4L9 16.2z"/>
              </svg>
            </div>
            <span className="text-[#6B7280]">Tamamlandı</span>
          </div>
          <div className="flex items-center space-x-2">
            <div className="w-5 h-5 rounded-full bg-[#F59E0B] border-2 border-white"></div>
            <span className="text-[#6B7280]">İnşaat Halinde (Metro Burada)</span>
          </div>
          <div className="flex items-center space-x-2">
            <div className="w-5 h-5 rounded-full bg-gray-300 border-2 border-dashed border-gray-400"></div>
            <span className="text-[#6B7280]">Planlanan</span>
          </div>
        </div>
      </div>
    </div>
  );
}
