"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;
  onTestConnection: (account: MailAccount) => void;
}

export default function MailAccountTable({
  accounts,
  onEdit,
  onDelete,
  onToggleStatus,
  onTestConnection,
}: 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="rounded-xl border border-2 border-dashed bg-gradient-to-br from-gray-50 to-gray-100 p-12 text-center">
        <Mail className="mx-auto mb-4 h-16 w-16 text-gray-400" />
        <p className="text-muted-foreground mb-2 text-lg font-medium">등록된 메일 계정이 없습니다</p>
        <p className="text-muted-foreground text-sm">"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 top-1/2 left-3 h-5 w-5 -translate-y-1/2 text-gray-400" />
        <input
          type="text"
          value={searchTerm}
          onChange={(e) => setSearchTerm(e.target.value)}
          placeholder="계정명, 이메일, 서버로 검색..."
          className="focus:ring-primary focus:border-primary w-full rounded-lg border py-3 pr-4 pl-10 transition-all focus:ring-2"
        />
      </div>

      {/* 테이블 */}
      <div className="overflow-hidden rounded-xl border bg-white shadow-sm">
        <div className="overflow-x-auto">
          <table className="w-full">
            <thead className="border border-b bg-gradient-to-r from-slate-50 to-gray-50">
              <tr>
                <th
                  className="text-foreground hover:bg-muted cursor-pointer px-6 py-4 text-left text-sm font-semibold transition"
                  onClick={() => handleSort("name")}
                >
                  <div className="flex items-center gap-2">
                    <Mail className="text-primary h-4 w-4" />
                    계정명
                    {sortField === "name" && <span className="text-xs">{sortOrder === "asc" ? "↑" : "↓"}</span>}
                  </div>
                </th>
                <th
                  className="text-foreground hover:bg-muted cursor-pointer px-6 py-4 text-left text-sm font-semibold transition"
                  onClick={() => handleSort("email")}
                >
                  이메일 주소
                </th>
                <th className="text-foreground px-6 py-4 text-left text-sm font-semibold">SMTP 서버</th>
                <th
                  className="text-foreground hover:bg-muted cursor-pointer px-6 py-4 text-center text-sm font-semibold transition"
                  onClick={() => handleSort("status")}
                >
                  상태
                </th>
                <th
                  className="text-foreground hover:bg-muted cursor-pointer px-6 py-4 text-center text-sm font-semibold transition"
                  onClick={() => handleSort("dailyLimit")}
                >
                  <div className="flex items-center justify-center gap-2">
                    <Zap className="text-primary h-4 w-4" />
                    일일 제한
                  </div>
                </th>
                <th
                  className="text-foreground hover:bg-muted cursor-pointer px-6 py-4 text-center text-sm font-semibold transition"
                  onClick={() => handleSort("createdAt")}
                >
                  <div className="flex items-center justify-center gap-2">
                    <Calendar className="text-primary h-4 w-4" />
                    생성일
                  </div>
                </th>
                <th className="text-foreground px-6 py-4 text-center text-sm font-semibold">액션</th>
              </tr>
            </thead>
            <tbody className="divide-y divide-gray-100">
              {sortedAccounts.map((account) => (
                <tr key={account.id} className="transition-colors hover:bg-orange-50/50">
                  <td className="px-6 py-4">
                    <div className="text-foreground font-medium">{account.name}</div>
                  </td>
                  <td className="px-6 py-4">
                    <div className="text-muted-foreground text-sm">{account.email}</div>
                  </td>
                  <td className="px-6 py-4">
                    <div className="text-muted-foreground text-sm">
                      {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 rounded-full px-3 py-1.5 text-xs font-medium transition-all hover:scale-105 ${
                        account.status === "active"
                          ? "bg-green-100 text-green-700 hover:bg-green-200"
                          : "bg-muted text-muted-foreground hover:bg-gray-200"
                      }`}
                    >
                      {account.status === "active" ? (
                        <>
                          <CheckCircle className="h-3.5 w-3.5" />
                          활성
                        </>
                      ) : (
                        <>
                          <XCircle className="h-3.5 w-3.5" />
                          비활성
                        </>
                      )}
                    </button>
                  </td>
                  <td className="px-6 py-4 text-center">
                    <div className="text-foreground text-sm font-medium">
                      {account.dailyLimit > 0 ? account.dailyLimit.toLocaleString() : "무제한"}
                    </div>
                  </td>
                  <td className="px-6 py-4 text-center">
                    <div className="text-muted-foreground text-sm">{formatDate(account.createdAt)}</div>
                  </td>
                  <td className="px-6 py-4">
                    <div className="flex items-center justify-center gap-2">
                      <button
                        onClick={() => onTestConnection(account)}
                        className="rounded-lg p-2 text-blue-600 transition-colors hover:bg-blue-50"
                        title="SMTP 연결 테스트"
                      >
                        <Zap className="h-4 w-4" />
                      </button>
                      <button
                        onClick={() => onEdit(account)}
                        className="text-primary hover:bg-accent rounded-lg p-2 transition-colors"
                        title="수정"
                      >
                        <Edit2 className="h-4 w-4" />
                      </button>
                      <button
                        onClick={() => onDelete(account)}
                        className="text-destructive hover:bg-destructive/10 rounded-lg p-2 transition-colors"
                        title="삭제"
                      >
                        <Trash2 className="h-4 w-4" />
                      </button>
                    </div>
                  </td>
                </tr>
              ))}
            </tbody>
          </table>
        </div>
      </div>

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