import React, { useState } from 'react'
import { motion, AnimatePresence } from 'framer-motion'
import {
  HiAcademicCap,
  HiClock,
  HiUsers,
  HiMapPin,
  HiXMark,
  HiCheckBadge,
  HiCalendar
} from 'react-icons/hi2'
import dayjs from 'dayjs'
import { mockTrainings, mockCertificates, Training } from '../../../mocks/mockIntranetData'

const TrainingModule: React.FC = () => {
  const [selectedTraining, setSelectedTraining] = useState<Training | null>(null)
  const [selectedTab, setSelectedTab] = useState<'all' | 'upcoming' | 'ongoing' | 'completed'>('all')
  const [trainings, setTrainings] = useState<Training[]>(mockTrainings)
  const [showEnrollSuccess, setShowEnrollSuccess] = useState(false)

  const filteredTrainings = selectedTab === 'all' 
    ? trainings 
    : trainings.filter(t => t.status === selectedTab)

  const handleEnroll = (trainingId: string) => {
    setTrainings(prev => prev.map(t => 
      t.id === trainingId && t.enrolled < t.maxParticipants
        ? { ...t, enrolled: t.enrolled + 1 }
        : t
    ))
    
    // Seçili eğitimi de güncelle
    if (selectedTraining?.id === trainingId && selectedTraining.enrolled < selectedTraining.maxParticipants) {
      setSelectedTraining(prev => prev ? { ...prev, enrolled: prev.enrolled + 1 } : null)
    }
    
    setShowEnrollSuccess(true)
    setTimeout(() => setShowEnrollSuccess(false), 3000)
  }

  const getCategoryColor = (category: string) => {
    const colors: Record<string, string> = {
      technical: 'bg-blue-100 dark:bg-blue-900/30 text-blue-700 dark:text-blue-300',
      'soft-skills': 'bg-purple-100 dark:bg-purple-900/30 text-purple-700 dark:text-purple-300',
      management: 'bg-green-100 dark:bg-green-900/30 text-green-700 dark:text-green-300',
      compliance: 'bg-orange-100 dark:bg-orange-900/30 text-orange-700 dark:text-orange-300',
      other: 'bg-gray-100 dark:bg-gray-700 text-gray-700 dark:text-gray-300'
    }
    return colors[category] || colors.other
  }

  const getStatusBadge = (status: string) => {
    const badges: Record<string, { bg: string; text: string }> = {
      upcoming: { bg: 'bg-blue-100 dark:bg-blue-900/30', text: 'text-blue-700 dark:text-blue-300' },
      ongoing: { bg: 'bg-green-100 dark:bg-green-900/30', text: 'text-green-700 dark:text-green-300' },
      completed: { bg: 'bg-gray-100 dark:bg-gray-700', text: 'text-gray-700 dark:text-gray-300' }
    }
    return badges[status] || badges.upcoming
  }

  return (
    <div className="min-h-screen bg-gray-50 dark:bg-gray-900 p-6">
      <div className="max-w-7xl mx-auto space-y-6">
        {/* Header */}
        <div className="flex items-center justify-between">
          <div>
            <h1 className="text-2xl font-bold text-gray-900 dark:text-white">
              🎓 Eğitimler & Sertifikalar
            </h1>
            <p className="text-gray-600 dark:text-gray-400 mt-1">
              Kişisel gelişim ve eğitim kayıtları
            </p>
          </div>
        </div>

        {/* Stats */}
        <div className="grid grid-cols-1 md:grid-cols-4 gap-6">
          {[
            { label: 'Tümü', value: mockTrainings.length, tab: 'all' as const },
            { label: 'Yaklaşan', value: mockTrainings.filter(t => t.status === 'upcoming').length, tab: 'upcoming' as const },
            { label: 'Devam Eden', value: mockTrainings.filter(t => t.status === 'ongoing').length, tab: 'ongoing' as const },
            { label: 'Tamamlanan', value: mockTrainings.filter(t => t.status === 'completed').length, tab: 'completed' as const }
          ].map((stat, idx) => (
            <motion.button
              key={idx}
              onClick={() => setSelectedTab(stat.tab)}
              initial={{ opacity: 0, y: 20 }}
              animate={{ opacity: 1, y: 0 }}
              transition={{ delay: idx * 0.1 }}
              className={`p-4 rounded-lg border-2 transition-all ${
                selectedTab === stat.tab
                  ? 'border-blue-500 bg-blue-50 dark:bg-blue-900/20'
                  : 'border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-800 hover:border-blue-300'
              }`}
            >
              <div className="text-3xl font-bold text-gray-900 dark:text-white">{stat.value}</div>
              <div className="text-sm text-gray-600 dark:text-gray-400 mt-1">{stat.label}</div>
            </motion.button>
          ))}
        </div>

        {/* Eğitimler */}
        <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
          {filteredTrainings.map((training, idx) => {
            const badge = getStatusBadge(training.status)
            return (
              <motion.div
                key={training.id}
                initial={{ opacity: 0, y: 20 }}
                animate={{ opacity: 1, y: 0 }}
                transition={{ delay: idx * 0.1 }}
                onClick={() => setSelectedTraining(training)}
                className="bg-white dark:bg-gray-800 rounded-lg overflow-hidden border border-gray-200 dark:border-gray-700 hover:shadow-lg transition-all cursor-pointer"
              >
                {training.thumbnail && (
                  <img
                    src={training.thumbnail}
                    alt={training.title}
                    className="w-full h-48 object-cover"
                  />
                )}
                
                <div className="p-6">
                  <div className="flex items-start justify-between mb-3">
                    <span className={`px-3 py-1 rounded-full text-xs font-medium ${getCategoryColor(training.category)}`}>
                      {training.category}
                    </span>
                    <span className={`px-3 py-1 rounded-full text-xs font-medium ${badge.bg} ${badge.text}`}>
                      {training.status === 'upcoming' ? 'Yaklaşan' : training.status === 'ongoing' ? 'Devam Ediyor' : 'Tamamlandı'}
                    </span>
                  </div>

                  <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-2">
                    {training.title}
                  </h3>

                  <p className="text-sm text-gray-600 dark:text-gray-400 mb-4 line-clamp-2">
                    {training.description}
                  </p>

                  <div className="space-y-2 text-sm text-gray-700 dark:text-gray-300">
                    <div className="flex items-center gap-2">
                      <HiAcademicCap className="w-4 h-4" />
                      <span>{training.instructor}</span>
                    </div>
                    <div className="flex items-center gap-2">
                      <HiCalendar className="w-4 h-4" />
                      <span>{dayjs(training.startDate).format('DD MMM YYYY')}</span>
                    </div>
                    <div className="flex items-center gap-2">
                      <HiClock className="w-4 h-4" />
                      <span>{training.duration} saat</span>
                    </div>
                    <div className="flex items-center gap-2">
                      <HiUsers className="w-4 h-4" />
                      <span>{training.enrolled} / {training.maxParticipants} katılımcı</span>
                    </div>
                  </div>

                  {training.enrolled < training.maxParticipants && training.status === 'upcoming' && (
                    <button 
                      onClick={() => handleEnroll(training.id)}
                      className="mt-4 w-full px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white rounded-lg transition-colors"
                    >
                      Kayıt Ol
                    </button>
                  )}
                </div>
              </motion.div>
            )
          })}
        </div>

        {/* Sertifikalar */}
        <div className="bg-white dark:bg-gray-800 rounded-lg p-6 border border-gray-200 dark:border-gray-700">
          <h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-4 flex items-center gap-2">
            <HiCheckBadge className="w-6 h-6 text-blue-500" />
            Sertifikalarım
          </h2>
          
          <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
            {mockCertificates.map((cert, idx) => (
              <motion.div
                key={cert.id}
                initial={{ opacity: 0, scale: 0.95 }}
                animate={{ opacity: 1, scale: 1 }}
                transition={{ delay: idx * 0.1 }}
                className="p-4 rounded-lg border-2 border-blue-200 dark:border-blue-800 bg-blue-50 dark:bg-blue-900/20"
              >
                <div className="flex items-start justify-between mb-3">
                  <HiCheckBadge className="w-8 h-8 text-blue-600 dark:text-blue-400" />
                  {cert.score && (
                    <span className="px-2 py-1 bg-blue-600 text-white rounded text-xs font-bold">
                      {cert.score}
                    </span>
                  )}
                </div>
                
                <h3 className="font-semibold text-gray-900 dark:text-white mb-2">
                  {cert.trainingTitle}
                </h3>
                
                <p className="text-sm text-gray-600 dark:text-gray-400">
                  {dayjs(cert.issueDate).format('DD MMMM YYYY')}
                </p>
                
                {cert.expiryDate && (
                  <p className="text-xs text-gray-500 dark:text-gray-500 mt-1">
                    Geçerlilik: {dayjs(cert.expiryDate).format('DD/MM/YYYY')}
                  </p>
                )}

                <button className="mt-3 w-full px-3 py-1 text-sm text-blue-600 dark:text-blue-400 border border-blue-600 dark:border-blue-400 rounded hover:bg-blue-600 hover:text-white dark:hover:bg-blue-600 transition-colors">
                  Görüntüle
                </button>
              </motion.div>
            ))}
          </div>
        </div>

        {/* Training Detail Modal */}
        <AnimatePresence>
          {selectedTraining && (
            <>
              <motion.div
                initial={{ opacity: 0 }}
                animate={{ opacity: 1 }}
                exit={{ opacity: 0 }}
                className="fixed inset-0 bg-black/50 z-40"
                onClick={() => setSelectedTraining(null)}
              />
              <div className="fixed inset-0 z-50 flex items-center justify-center p-4">
                <motion.div
                  initial={{ opacity: 0, scale: 0.95, y: 20 }}
                  animate={{ opacity: 1, scale: 1, y: 0 }}
                  exit={{ opacity: 0, scale: 0.95, y: 20 }}
                  className="bg-white dark:bg-gray-800 rounded-lg shadow-xl max-w-2xl w-full max-h-[90vh] overflow-y-auto"
                >
                  <div className="sticky top-0 bg-white dark:bg-gray-800 border-b border-gray-200 dark:border-gray-700 p-6 flex items-center justify-between z-10">
                    <h2 className="text-xl font-semibold text-gray-900 dark:text-white">
                      Eğitim Detayları
                    </h2>
                    <button
                      onClick={() => setSelectedTraining(null)}
                      className="p-2 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg transition-colors"
                    >
                      <HiXMark className="w-5 h-5 text-gray-500" />
                    </button>
                  </div>

                  <div className="p-6 space-y-6">
                    {selectedTraining.thumbnail && (
                      <img
                        src={selectedTraining.thumbnail}
                        alt={selectedTraining.title}
                        className="w-full h-64 object-cover rounded-lg"
                      />
                    )}

                    <div>
                      <h3 className="text-2xl font-bold text-gray-900 dark:text-white mb-2">
                        {selectedTraining.title}
                      </h3>
                      <p className="text-gray-700 dark:text-gray-300">
                        {selectedTraining.description}
                      </p>
                    </div>

                    <div className="grid grid-cols-2 gap-4">
                      <div>
                        <p className="text-sm text-gray-600 dark:text-gray-400 mb-1">Eğitmen</p>
                        <p className="font-medium text-gray-900 dark:text-white">{selectedTraining.instructor}</p>
                      </div>
                      <div>
                        <p className="text-sm text-gray-600 dark:text-gray-400 mb-1">Kategori</p>
                        <span className={`inline-block px-3 py-1 rounded-full text-sm ${getCategoryColor(selectedTraining.category)}`}>
                          {selectedTraining.category}
                        </span>
                      </div>
                      <div>
                        <p className="text-sm text-gray-600 dark:text-gray-400 mb-1">Tarih</p>
                        <p className="font-medium text-gray-900 dark:text-white">
                          {dayjs(selectedTraining.startDate).format('DD MMM')} - {dayjs(selectedTraining.endDate).format('DD MMM YYYY')}
                        </p>
                      </div>
                      <div>
                        <p className="text-sm text-gray-600 dark:text-gray-400 mb-1">Süre</p>
                        <p className="font-medium text-gray-900 dark:text-white">{selectedTraining.duration} saat</p>
                      </div>
                      <div>
                        <p className="text-sm text-gray-600 dark:text-gray-400 mb-1">Tip</p>
                        <p className="font-medium text-gray-900 dark:text-white capitalize">{selectedTraining.type}</p>
                      </div>
                      {selectedTraining.location && (
                        <div>
                          <p className="text-sm text-gray-600 dark:text-gray-400 mb-1">Konum</p>
                          <p className="font-medium text-gray-900 dark:text-white">{selectedTraining.location}</p>
                        </div>
                      )}
                    </div>

                    <div>
                      <p className="text-sm text-gray-600 dark:text-gray-400 mb-2">Doluluk Oranı</p>
                      <div className="flex items-center gap-3">
                        <div className="flex-1 bg-gray-200 dark:bg-gray-700 rounded-full h-3">
                          <div
                            className="bg-blue-600 h-3 rounded-full transition-all"
                            style={{ width: `${(selectedTraining.enrolled / selectedTraining.maxParticipants) * 100}%` }}
                          />
                        </div>
                        <span className="text-sm font-medium text-gray-900 dark:text-white">
                          {selectedTraining.enrolled} / {selectedTraining.maxParticipants}
                        </span>
                      </div>
                    </div>

                    {selectedTraining.enrolled < selectedTraining.maxParticipants && selectedTraining.status === 'upcoming' && (
                      <button 
                        onClick={() => handleEnroll(selectedTraining.id)}
                        className="w-full px-4 py-3 bg-blue-600 hover:bg-blue-700 text-white rounded-lg transition-colors font-medium"
                      >
                        Eğitime Kayıt Ol
                      </button>
                    )}
                  </div>
                </motion.div>
              </div>
            </>
          )}
        </AnimatePresence>

        {/* Success Notification */}
        <AnimatePresence>
          {showEnrollSuccess && (
            <motion.div
              initial={{ opacity: 0, y: 50 }}
              animate={{ opacity: 1, y: 0 }}
              exit={{ opacity: 0, y: 50 }}
              className="fixed bottom-6 right-6 bg-green-600 text-white px-6 py-4 rounded-lg shadow-xl flex items-center gap-3 z-50"
            >
              <HiCheckBadge className="w-6 h-6" />
              <div>
                <p className="font-semibold">Kayıt Başarılı!</p>
                <p className="text-sm text-green-100">Eğitime kayıt oldunuz.</p>
              </div>
            </motion.div>
          )}
        </AnimatePresence>
      </div>
    </div>
  )
}

export default TrainingModule