"use client";

import React, { useState } from 'react';
import {
  Mail,
  Edit2,
  Trash2,
  Power,
  PowerOff,
  Search,
  Calendar,
  Zap,
  CheckCircle,
  XCircle,
} from 'lucide-react';
import { Button } from '@/components/ui/button';
import { MailAccount } from '@/lib/api/mail';

interface MailAccountTableProps {
  accounts: MailAccount[];
  onEdit: (account: MailAccount) => void;
  onDelete: (account: MailAccount) => void;
  onToggleStatus: (account: MailAccount) => void;
}

export default function MailAccountTable({
  accounts,
  onEdit,
  onDelete,
  onToggleStatus,
}: MailAccountTableProps) {
  const [searchTerm, setSearchTerm] = useState('');
  const [sortField, setSortField] = useState<keyof MailAccount>('createdAt');
  const [sortOrder, setSortOrder] = useState<'asc' | 'desc'>('desc');

  // 검색 필터링
  const filteredAccounts = accounts.filter(
    (account) =>
      account.name.toLowerCase().includes(searchTerm.toLowerCase()) ||
      account.email.toLowerCase().includes(searchTerm.toLowerCase()) ||
      account.smtpHost.toLowerCase().includes(searchTerm.toLowerCase())
  );

  // 정렬
  const sortedAccounts = [...filteredAccounts].sort((a, b) => {
    const aValue = a[sortField];
    const bValue = b[sortField];

    if (typeof aValue === 'string' && typeof bValue === 'string') {
      return sortOrder === 'asc'
        ? aValue.localeCompare(bValue)
        : bValue.localeCompare(aValue);
    }

    if (typeof aValue === 'number' && typeof bValue === 'number') {
      return sortOrder === 'asc' ? aValue - bValue : bValue - aValue;
    }

    return 0;
  });

  const handleSort = (field: keyof MailAccount) => {
    if (sortField === field) {
      setSortOrder(sortOrder === 'asc' ? 'desc' : 'asc');
    } else {
      setSortField(field);
      setSortOrder('asc');
    }
  };

  const formatDate = (dateString: string) => {
    return new Date(dateString).toLocaleDateString('ko-KR', {
      year: 'numeric',
      month: '2-digit',
      day: '2-digit',
      hour: '2-digit',
      minute: '2-digit',
    });
  };

  if (accounts.length === 0) {
    return (
      <div className="bg-gradient-to-br from-gray-50 to-gray-100 rounded-xl p-12 text-center border-2 border-dashed border-gray-300">
        <Mail className="w-16 h-16 text-gray-400 mx-auto mb-4" />
        <p className="text-lg font-medium text-gray-600 mb-2">
          등록된 메일 계정이 없습니다
        </p>
        <p className="text-sm text-gray-500">
          "새 계정 추가" 버튼을 클릭하여 첫 번째 메일 계정을 등록하세요.
        </p>
      </div>
    );
  }

  return (
    <div className="space-y-4">
      {/* 검색 */}
      <div className="relative">
        <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-5 h-5 text-gray-400" />
        <input
          type="text"
          value={searchTerm}
          onChange={(e) => setSearchTerm(e.target.value)}
          placeholder="계정명, 이메일, 서버로 검색..."
          className="w-full pl-10 pr-4 py-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-orange-500 focus:border-orange-500 transition-all"
        />
      </div>

      {/* 테이블 */}
      <div className="bg-white rounded-xl shadow-sm border border-gray-200 overflow-hidden">
        <div className="overflow-x-auto">
          <table className="w-full">
            <thead className="bg-gradient-to-r from-slate-50 to-gray-50 border-b border-gray-200">
              <tr>
                <th
                  className="px-6 py-4 text-left text-sm font-semibold text-gray-700 cursor-pointer hover:bg-gray-100 transition"
                  onClick={() => handleSort('name')}
                >
                  <div className="flex items-center gap-2">
                    <Mail className="w-4 h-4 text-orange-500" />
                    계정명
                    {sortField === 'name' && (
                      <span className="text-xs">
                        {sortOrder === 'asc' ? '↑' : '↓'}
                      </span>
                    )}
                  </div>
                </th>
                <th
                  className="px-6 py-4 text-left text-sm font-semibold text-gray-700 cursor-pointer hover:bg-gray-100 transition"
                  onClick={() => handleSort('email')}
                >
                  이메일 주소
                </th>
                <th className="px-6 py-4 text-left text-sm font-semibold text-gray-700">
                  SMTP 서버
                </th>
                <th
                  className="px-6 py-4 text-center text-sm font-semibold text-gray-700 cursor-pointer hover:bg-gray-100 transition"
                  onClick={() => handleSort('status')}
                >
                  상태
                </th>
                <th
                  className="px-6 py-4 text-center text-sm font-semibold text-gray-700 cursor-pointer hover:bg-gray-100 transition"
                  onClick={() => handleSort('dailyLimit')}
                >
                  <div className="flex items-center justify-center gap-2">
                    <Zap className="w-4 h-4 text-orange-500" />
                    일일 제한
                  </div>
                </th>
                <th
                  className="px-6 py-4 text-center text-sm font-semibold text-gray-700 cursor-pointer hover:bg-gray-100 transition"
                  onClick={() => handleSort('createdAt')}
                >
                  <div className="flex items-center justify-center gap-2">
                    <Calendar className="w-4 h-4 text-orange-500" />
                    생성일
                  </div>
                </th>
                <th className="px-6 py-4 text-center text-sm font-semibold text-gray-700">
                  액션
                </th>
              </tr>
            </thead>
            <tbody className="divide-y divide-gray-100">
              {sortedAccounts.map((account) => (
                <tr
                  key={account.id}
                  className="hover:bg-orange-50/50 transition-colors"
                >
                  <td className="px-6 py-4">
                    <div className="font-medium text-gray-900">{account.name}</div>
                  </td>
                  <td className="px-6 py-4">
                    <div className="text-sm text-gray-600">{account.email}</div>
                  </td>
                  <td className="px-6 py-4">
                    <div className="text-sm text-gray-600">
                      {account.smtpHost}:{account.smtpPort}
                    </div>
                    <div className="text-xs text-gray-400">
                      {account.smtpSecure ? 'SSL' : 'TLS'}
                    </div>
                  </td>
                  <td className="px-6 py-4 text-center">
                    <button
                      onClick={() => onToggleStatus(account)}
                      className={`inline-flex items-center gap-1.5 px-3 py-1.5 rounded-full text-xs font-medium transition-all hover:scale-105 ${
                        account.status === 'active'
                          ? 'bg-green-100 text-green-700 hover:bg-green-200'
                          : 'bg-gray-100 text-gray-600 hover:bg-gray-200'
                      }`}
                    >
                      {account.status === 'active' ? (
                        <>
                          <CheckCircle className="w-3.5 h-3.5" />
                          활성
                        </>
                      ) : (
                        <>
                          <XCircle className="w-3.5 h-3.5" />
                          비활성
                        </>
                      )}
                    </button>
                  </td>
                  <td className="px-6 py-4 text-center">
                    <div className="text-sm font-medium text-gray-900">
                      {account.dailyLimit > 0
                        ? account.dailyLimit.toLocaleString()
                        : '무제한'}
                    </div>
                  </td>
                  <td className="px-6 py-4 text-center">
                    <div className="text-sm text-gray-600">
                      {formatDate(account.createdAt)}
                    </div>
                  </td>
                  <td className="px-6 py-4">
                    <div className="flex items-center justify-center gap-2">
                      <button
                        onClick={() => onEdit(account)}
                        className="p-2 text-blue-600 hover:bg-blue-50 rounded-lg transition-colors"
                        title="수정"
                      >
                        <Edit2 className="w-4 h-4" />
                      </button>
                      <button
                        onClick={() => onDelete(account)}
                        className="p-2 text-red-600 hover:bg-red-50 rounded-lg transition-colors"
                        title="삭제"
                      >
                        <Trash2 className="w-4 h-4" />
                      </button>
                    </div>
                  </td>
                </tr>
              ))}
            </tbody>
          </table>
        </div>
      </div>

      {/* 결과 요약 */}
      <div className="text-sm text-gray-600 text-center">
        전체 {accounts.length}개 중 {sortedAccounts.length}개 표시
        {searchTerm && ` (검색: "${searchTerm}")`}
      </div>
    </div>
  );
}