import { useEffect, useRef, useState } from "react";
import { toast } from "sonner";
import CopyButton from "@/components/common/CopyButton";
import type { DeviceSummary } from "../types";

interface DeviceSlidePanelProps {
  isOpen: boolean;
  onClose: () => void;
  device: DeviceSummary | null;
}

export default function DeviceSlidePanel({
  isOpen,
  onClose,
  device,
}: DeviceSlidePanelProps) {
  const [showDeleteConfirm, setShowDeleteConfirm] = useState(false);
  const bodyRef = useRef<HTMLDivElement>(null);

  // 패널 열릴 때 스크롤 최상단 리셋
  useEffect(() => {
    if (isOpen) {
      bodyRef.current?.scrollTo(0, 0);
    }
  }, [isOpen, device]);

  // ESC 닫기
  useEffect(() => {
    const handleKeyDown = (e: KeyboardEvent) => {
      if (e.key === "Escape" && isOpen) onClose();
    };
    document.addEventListener("keydown", handleKeyDown);
    return () => document.removeEventListener("keydown", handleKeyDown);
  }, [isOpen, onClose]);

  // body 스크롤 잠금
  useEffect(() => {
    if (isOpen) {
      document.body.style.overflow = "hidden";
    } else {
      document.body.style.overflow = "";
    }
    return () => {
      document.body.style.overflow = "";
    };
  }, [isOpen]);

  // 플랫폼 아이콘 렌더링
  const renderPlatformIcon = () => {
    if (!device) return null;
    if (device.platform === "iOS") {
      return (
        <div className="size-10 rounded-lg bg-gray-100 flex items-center justify-center flex-shrink-0">
          <svg className="size-5 text-gray-700" viewBox="0 0 384 512" fill="currentColor">
            <path d="M318.7 268.7c-.2-36.7 16.4-64.4 50-84.8-18.8-26.9-47.2-41.7-84.7-44.6-35.5-2.8-74.3 20.7-88.5 20.7-15 0-49.4-19.7-76.4-19.7C63.3 141.2 4 184.8 4 273.5q0 39.3 14.4 81.2c12.8 36.7 59 126.7 107.2 125.2 25.2-.6 43-17.9 75.8-17.9 31.8 0 48.3 17.9 76.4 17.9 48.6-.7 90.4-82.5 102.6-119.3-65.2-30.7-61.7-90-61.7-91.9zm-56.6-164.2c27.3-32.4 24.8-61.9 24-72.5-24.1 1.4-52 16.4-67.9 34.9-17.5 19.8-27.8 44.3-25.6 71.9 26.1 2 49.9-11.4 69.5-34.3z" />
          </svg>
        </div>
      );
    }
    return (
      <div className="size-10 rounded-lg bg-green-50 flex items-center justify-center flex-shrink-0">
        <span className="material-symbols-outlined text-green-700 text-xl">
          android
        </span>
      </div>
    );
  };

  // 수신 동의 박스
  const ConsentBox = ({
    label,
    consented,
  }: {
    label: string;
    consented: boolean;
  }) => (
    <div
      className={`rounded-lg p-3 border text-center ${
        consented
          ? "bg-green-50 border-green-200"
          : "bg-gray-50 border-gray-200"
      }`}
    >
      <div className="flex items-center justify-center gap-1.5 mb-1">
        <span
          className={`material-symbols-outlined ${consented ? "text-green-500" : "text-gray-400"}`}
          style={{ fontSize: "16px" }}
        >
          {consented ? "check_circle" : "cancel"}
        </span>
        <span className="text-xs font-semibold text-gray-600">{label}</span>
      </div>
      <span
        className={`text-sm font-bold ${consented ? "text-green-700" : "text-gray-500"}`}
      >
        {consented ? "동의" : "미동의"}
      </span>
    </div>
  );

  return (
    <>
      {/* 오버레이 */}
      <div
        className={`fixed inset-0 bg-black/30 z-50 transition-opacity duration-300 ${
          isOpen ? "opacity-100" : "opacity-0 pointer-events-none"
        }`}
        onClick={onClose}
      />

      {/* 패널 */}
      <aside
        className={`fixed top-0 right-0 h-full w-[480px] bg-white shadow-2xl z-50 flex flex-col transition-transform duration-300 ${
          isOpen ? "translate-x-0" : "translate-x-full"
        }`}
      >
        {/* 헤더 */}
        <div className="flex items-center justify-between px-6 py-5 border-b border-gray-100 flex-shrink-0">
          <div className="flex items-center gap-3">
            {renderPlatformIcon()}
            <div>
              <h3 className="text-base font-bold text-[#0f172a]">
                {device?.deviceModel}
              </h3>
              <p className="text-xs text-gray-500 mt-0.5">
                {device?.osVersion}
              </p>
            </div>
          </div>
          <button
            onClick={onClose}
            className="text-gray-400 hover:text-gray-600 transition-colors p-1 rounded-lg hover:bg-gray-100"
          >
            <span className="material-symbols-outlined text-xl">close</span>
          </button>
        </div>

        {/* 본문 */}
        <div
          ref={bodyRef}
          className="flex-1 overflow-y-auto px-6 py-5 space-y-5"
          style={{ overscrollBehavior: "contain" }}
        >
          {device ? (
            <>
              {/* 소속 서비스 */}
              <div>
                <label className="text-xs font-semibold text-gray-400 uppercase tracking-wider mb-2 block">
                  소속 서비스
                </label>
                <div className="bg-gray-50 rounded-lg p-3 border border-gray-100">
                  <div className="flex items-center justify-between">
                    <div className="flex items-center gap-2">
                      <span className="material-symbols-outlined text-[#2563EB] text-lg">
                        apps
                      </span>
                      <span className="text-sm font-semibold text-[#0f172a]">
                        {device.service}
                      </span>
                    </div>
                    <code className="text-[11px] text-gray-500 bg-white px-2 py-0.5 rounded border border-gray-200 font-mono">
                      {device.serviceCode}
                    </code>
                  </div>
                </div>
              </div>

              {/* Device ID */}
              <div>
                <label className="text-xs font-semibold text-gray-400 uppercase tracking-wider mb-2 block">
                  Device ID
                </label>
                <div className="bg-gray-50 rounded-lg p-3 border border-gray-100">
                  <div className="flex items-center gap-2">
                    <code className="text-xs text-gray-700 font-mono break-all leading-relaxed flex-1">
                      {device.id}
                    </code>
                    <CopyButton text={device.id} />
                  </div>
                </div>
              </div>

              {/* Push Token */}
              <div>
                <label className="text-xs font-semibold text-gray-400 uppercase tracking-wider mb-2 block">
                  Push Token
                </label>
                <div className="bg-gray-50 rounded-lg p-3 border border-gray-100">
                  <div className="flex items-start gap-2">
                    <code className="text-xs text-gray-700 font-mono break-all leading-relaxed flex-1">
                      {device.token}
                    </code>
                    <CopyButton text={device.token} />
                  </div>
                </div>
              </div>

              {/* 수신 동의 */}
              <div>
                <label className="text-xs font-semibold text-gray-400 uppercase tracking-wider mb-2 block">
                  수신 동의
                </label>
                <div className="grid grid-cols-2 gap-3">
                  <ConsentBox label="푸시 수신" consented={device.push} />
                  <ConsentBox label="광고 수신" consented={device.ad} />
                </div>
              </div>

              {/* 태그 */}
              <div>
                <label className="text-xs font-semibold text-gray-400 uppercase tracking-wider mb-2 block">
                  태그
                </label>
                {device.tags.length > 0 ? (
                  <div className="flex flex-wrap gap-2">
                    {device.tags.map((tag) => (
                      <span
                        key={tag}
                        className="inline-flex items-center px-2.5 py-1 rounded-full text-xs font-medium bg-blue-50 text-blue-700 border border-blue-200"
                      >
                        {tag}
                      </span>
                    ))}
                  </div>
                ) : (
                  <p className="text-sm text-gray-400 italic">
                    등록된 태그 없음
                  </p>
                )}
              </div>

              {/* 기기 정보 */}
              <div className="border-t border-gray-100 pt-5">
                <label className="text-xs font-semibold text-gray-400 uppercase tracking-wider mb-3 block">
                  기기 정보
                </label>
                <div className="grid grid-cols-2 gap-x-6 gap-y-3">
                  <div>
                    <p className="text-[11px] text-gray-400 mb-0.5">등록일</p>
                    <p className="text-sm font-medium text-[#0f172a]">
                      {device.createdAt}
                    </p>
                  </div>
                  <div>
                    <p className="text-[11px] text-gray-400 mb-0.5">
                      마지막 활동
                    </p>
                    <p className="text-sm font-medium text-[#0f172a]">
                      {device.lastActiveAt}
                    </p>
                  </div>
                  <div>
                    <p className="text-[11px] text-gray-400 mb-0.5">앱 버전</p>
                    <p className="text-sm font-medium text-[#0f172a]">
                      {device.appVersion}
                    </p>
                  </div>
                  <div>
                    <p className="text-[11px] text-gray-400 mb-0.5">플랫폼</p>
                    <p className="text-sm font-medium text-[#0f172a]">
                      {device.platform}
                    </p>
                  </div>
                </div>
              </div>
            </>
          ) : (
            <div className="flex items-center justify-center h-full text-gray-400 text-sm">
              기기를 선택해주세요
            </div>
          )}
        </div>

        {/* 푸터 */}
        {device && (
          <div className="flex-shrink-0 border-t border-gray-100 px-6 py-4">
            <button
              type="button"
              onClick={() => setShowDeleteConfirm(true)}
              className="w-full h-10 border border-red-200 rounded-lg text-sm font-medium text-red-500 hover:bg-red-50 transition-colors flex items-center justify-center"
            >
              기기 삭제
            </button>
          </div>
        )}
      </aside>

      {/* 삭제 확인 모달 */}
      {showDeleteConfirm && device && (
        <div className="fixed inset-0 z-[60] flex items-center justify-center">
          <div
            className="absolute inset-0 bg-black/40"
            onClick={() => setShowDeleteConfirm(false)}
          />
          <div className="relative bg-white rounded-xl shadow-2xl max-w-md w-full mx-4 p-6 border border-gray-200">
            <div className="flex items-center gap-3 mb-4">
              <div className="size-10 rounded-full bg-red-100 flex items-center justify-center flex-shrink-0">
                <span className="material-symbols-outlined text-red-600 text-xl">
                  warning
                </span>
              </div>
              <h3 className="text-lg font-bold text-[#0f172a]">기기 삭제</h3>
            </div>
            <p className="text-sm text-[#0f172a] mb-2">
              선택한 기기를 삭제하시겠습니까?
            </p>
            <div className="bg-red-50 border border-red-200 rounded-lg px-4 py-3 mb-5 flex flex-col gap-1.5">
              <div className="flex items-center gap-1.5 text-red-700 text-xs font-medium">
                <span
                  className="material-symbols-outlined flex-shrink-0"
                  style={{ fontSize: "14px" }}
                >
                  info
                </span>
                <span>삭제된 기기는 복구할 수 없습니다.</span>
              </div>
              <div className="flex items-center gap-1.5 text-red-700 text-xs font-medium">
                <span
                  className="material-symbols-outlined flex-shrink-0"
                  style={{ fontSize: "14px" }}
                >
                  info
                </span>
                <span>해당 기기로의 푸시 발송이 즉시 중단됩니다.</span>
              </div>
            </div>
            <div className="flex justify-end gap-3">
              <button
                onClick={() => setShowDeleteConfirm(false)}
                className="bg-white border border-gray-300 hover:bg-gray-50 text-[#0f172a] px-5 py-2.5 rounded text-sm font-medium transition"
              >
                취소
              </button>
              <button
                onClick={() => {
                  toast.success("기기가 삭제되었습니다.");
                  setShowDeleteConfirm(false);
                  onClose();
                }}
                className="bg-red-500 hover:bg-red-600 text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm"
              >
                삭제
              </button>
            </div>
          </div>
        </div>
      )}
    </>
  );
}