import { useState } from "react";

interface MessagePreviewProps {
  title: string;
  body: string;
  hasImage: boolean;
  appName?: string;
  variant?: "large" | "small";
}

// 폰 배경 이미지 (밝은 그래디언트 배경)
const PHONE_BG =
  "https://lh3.googleusercontent.com/aida-public/AB6AXuDmbD5msJ9uegWOcy0256wH6JsipGzrgtab3foEKiGVs_a4SbUCTPti6BVDJOQEP4ZCvbcAw9hI3C7QuUdPxrBf3jJm3VgKkWoqSzl--ZEbPIzimbYnM1HQEsRbil7nmWG_XscwPP30V3OFnyleVY_R7Urk0UYbrL8P1OJwW1xwYfBDJv4htBuICd9GR2NIJlSShaBxfF9Kgp59Cte3VapdHxCz9p2Cb9tf1t13xc2LV348V-kfyQNtL8XCZNP3LMrrUIR4SrV3cGM";

export default function MessagePreview({
  title,
  body,
  hasImage,
  appName = "SPMS",
  variant = "large",
}: MessagePreviewProps) {
  const [tab, setTab] = useState<"ios" | "android">("ios");

  const isLarge = variant === "large";
  const phoneWidth = isLarge ? "w-[300px]" : "w-[240px]";
  const truncatedBody =
    body.length > 50 ? body.substring(0, 50) + "..." : body;

  return (
    <div>
      {/* 탭 */}
      <div className="flex border-b border-gray-200 mb-4">
        <button
          type="button"
          className={`flex-1 px-3 py-2 text-xs font-medium border-b-2 transition-colors cursor-pointer ${
            tab === "ios"
              ? "text-[#0f172a] border-[#2563EB]"
              : "text-gray-400 border-transparent hover:text-[#0f172a]"
          }`}
          onClick={() => setTab("ios")}
        >
          iOS
        </button>
        <button
          type="button"
          className={`flex-1 px-3 py-2 text-xs font-medium border-b-2 transition-colors cursor-pointer ${
            tab === "android"
              ? "text-[#0f172a] border-[#2563EB]"
              : "text-gray-400 border-transparent hover:text-[#0f172a]"
          }`}
          onClick={() => setTab("android")}
        >
          Android
        </button>
      </div>

      {/* iOS 프리뷰 */}
      {tab === "ios" && (
        <div className="flex flex-col gap-5">
          {/* Banner Notification */}
          <div className="min-h-[130px]">
            <p className="text-[10px] uppercase font-bold text-gray-400 tracking-wider mb-2">
              Banner Notification
            </p>
            <div className="bg-white/90 backdrop-blur-md rounded-2xl p-3 shadow-lg border border-gray-200">
              <div className="flex items-center gap-2.5">
                <div className="size-8 bg-[#2563EB] rounded-xl flex items-center justify-center flex-shrink-0 shadow-sm">
                  <span
                    className="material-symbols-outlined text-white"
                    style={{ fontSize: "16px" }}
                  >
                    shopping_bag
                  </span>
                </div>
                <div className="flex-1 min-w-0">
                  <p className="text-xs font-bold text-[#0f172a] break-words">
                    {title || "메시지 제목을 입력하세요"}
                  </p>
                  <p className="text-[10px] text-gray-600 mt-0.5 break-words">
                    {body}
                  </p>
                </div>
                <div className="flex flex-col items-end gap-1 flex-shrink-0 self-start">
                  <p className="text-[10px] text-gray-400">now</p>
                  {hasImage && (
                    <div className="w-8 h-8 bg-gray-100 border border-dashed border-gray-300 rounded flex items-center justify-center">
                      <span
                        className="material-symbols-outlined text-gray-300"
                        style={{ fontSize: "14px" }}
                      >
                        image
                      </span>
                    </div>
                  )}
                </div>
              </div>
            </div>
          </div>

          {/* Full Screen Preview - iOS */}
          <div>
            <p className="text-[10px] uppercase font-bold text-gray-400 tracking-wider mb-2">
              Full Screen Preview
            </p>
            <div className="flex justify-center">
              <div className={`relative ${phoneWidth}`}>
                <div
                  className={`${isLarge ? "border-[10px]" : "border-[8px]"} border-gray-800 bg-gray-800 ${isLarge ? "rounded-[2.5rem]" : "rounded-[2rem]"} overflow-hidden shadow-xl`}
                  style={{ aspectRatio: "9/19.5" }}
                >
                  {/* 노치 */}
                  <div
                    className={`absolute top-0 left-1/2 -translate-x-1/2 ${isLarge ? "w-32 h-7" : "w-24 h-5"} bg-black rounded-b-2xl z-10`}
                  />
                  <div
                    className="w-full h-full bg-cover bg-center overflow-hidden relative"
                    style={{
                      backgroundImage: `url('${PHONE_BG}')`,
                      filter: "brightness(1)",
                    }}
                  >
                    {/* 상태바 */}
                    <div className="px-4 pt-2 pb-1 flex justify-between items-center text-white text-[10px] font-medium bg-black/20">
                      <span>9:41</span>
                      <div className="flex gap-0.5 items-center">
                        <span
                          className="material-symbols-outlined"
                          style={{ fontSize: "12px" }}
                        >
                          signal_cellular_alt
                        </span>
                        <span
                          className="material-symbols-outlined"
                          style={{ fontSize: "12px" }}
                        >
                          wifi
                        </span>
                        <span
                          className="material-symbols-outlined"
                          style={{ fontSize: "12px" }}
                        >
                          battery_full
                        </span>
                      </div>
                    </div>
                    {/* 알림 카드 */}
                    <div
                      className={`absolute ${isLarge ? "top-16 left-3 right-3" : "top-12 left-2 right-2"} bg-white/80 backdrop-blur-md rounded-lg shadow-lg border border-white/30 overflow-hidden`}
                    >
                      <div className="p-2.5">
                        <div className="flex items-center gap-2">
                          <div className="size-6 bg-[#2563EB] rounded-md flex items-center justify-center flex-shrink-0">
                            <span
                              className="material-symbols-outlined text-white"
                              style={{ fontSize: "12px" }}
                            >
                              shopping_bag
                            </span>
                          </div>
                          <div className="flex-1 min-w-0">
                            <p className="text-[10px] font-bold text-[#0f172a] break-words">
                              {title || "메시지 제목을 입력하세요"}
                            </p>
                            <p className="text-[8px] text-gray-600 mt-0.5 break-words">
                              {truncatedBody}
                            </p>
                          </div>
                          <p className="text-[8px] text-gray-400 flex-shrink-0 self-start">
                            now
                          </p>
                        </div>
                      </div>
                      {hasImage && (
                        <div
                          className="w-full bg-gray-100 border-t border-dashed border-gray-200 flex items-center justify-center"
                          style={{ height: isLarge ? 150 : 120 }}
                        >
                          <span className="material-symbols-outlined text-gray-300 text-2xl">
                            image
                          </span>
                        </div>
                      )}
                    </div>
                    {/* 홈 인디케이터 */}
                    <div className="absolute bottom-0 left-0 right-0 h-5 flex items-center justify-center">
                      <div className="w-24 h-1 bg-white/60 rounded-full" />
                    </div>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
      )}

      {/* Android 프리뷰 */}
      {tab === "android" && (
        <div className="flex flex-col gap-5">
          {/* Banner Notification */}
          <div className="min-h-[130px]">
            <p className="text-[10px] uppercase font-bold text-gray-400 tracking-wider mb-2">
              Banner Notification
            </p>
            <div className="bg-white rounded-2xl p-3 shadow-lg border border-gray-200">
              <div className="flex items-center gap-1.5 mb-1.5">
                <div className="size-3.5 bg-[#2563EB] rounded-full flex items-center justify-center flex-shrink-0">
                  <span
                    className="material-symbols-outlined text-white"
                    style={{ fontSize: "8px" }}
                  >
                    shopping_bag
                  </span>
                </div>
                <p className="text-[10px] text-gray-500 font-medium">{appName}</p>
                <span className="text-[10px] text-gray-300 mx-0.5">&middot;</span>
                <p className="text-[10px] text-gray-400">now</p>
              </div>
              <div className="flex items-center gap-2.5">
                <div className="flex-1 min-w-0">
                  <p className="text-xs font-bold text-[#0f172a] break-words">
                    {title || "메시지 제목을 입력하세요"}
                  </p>
                  <p className="text-[10px] text-gray-600 mt-0.5 break-words">
                    {body}
                  </p>
                </div>
                {hasImage && (
                  <div className="w-8 h-8 bg-gray-100 border border-dashed border-gray-300 rounded flex items-center justify-center flex-shrink-0">
                    <span
                      className="material-symbols-outlined text-gray-300"
                      style={{ fontSize: "14px" }}
                    >
                      image
                    </span>
                  </div>
                )}
              </div>
            </div>
          </div>

          {/* Full Screen Preview - Android */}
          <div>
            <p className="text-[10px] uppercase font-bold text-gray-400 tracking-wider mb-2">
              Full Screen Preview
            </p>
            <div className="flex justify-center">
              <div className={`relative ${phoneWidth}`}>
                <div
                  className={`${isLarge ? "border-[10px]" : "border-[8px]"} border-gray-800 bg-gray-800 rounded-[2rem] overflow-hidden shadow-xl`}
                  style={{ aspectRatio: "9/19.5" }}
                >
                  <div
                    className="w-full h-full bg-cover bg-center overflow-hidden relative"
                    style={{
                      backgroundImage: `url('${PHONE_BG}')`,
                      filter: "brightness(1)",
                    }}
                  >
                    {/* 상태바 */}
                    <div className="px-4 pt-2 pb-1 flex justify-between items-center text-white text-[10px] font-medium bg-black/20">
                      <span>12:30</span>
                      <div className="flex gap-0.5 items-center">
                        <span
                          className="material-symbols-outlined"
                          style={{ fontSize: "12px" }}
                        >
                          signal_cellular_alt
                        </span>
                        <span
                          className="material-symbols-outlined"
                          style={{ fontSize: "12px" }}
                        >
                          wifi
                        </span>
                        <span
                          className="material-symbols-outlined"
                          style={{ fontSize: "12px" }}
                        >
                          battery_full
                        </span>
                      </div>
                    </div>
                    {/* 알림 카드 */}
                    <div
                      className={`absolute ${isLarge ? "top-14" : "top-11"} left-2 right-2 bg-white/90 rounded-xl shadow-lg overflow-hidden`}
                    >
                      <div className="px-2.5 pt-2 pb-1.5">
                        <div className="flex items-center gap-1 mb-1">
                          <div className="size-3 bg-[#2563EB] rounded-full flex items-center justify-center flex-shrink-0">
                            <span
                              className="material-symbols-outlined text-white"
                              style={{ fontSize: "7px" }}
                            >
                              shopping_bag
                            </span>
                          </div>
                          <p className="text-[8px] text-gray-500 font-medium">
                            {appName}
                          </p>
                          <span className="text-[8px] text-gray-300 mx-0.5">
                            &middot;
                          </span>
                          <p className="text-[8px] text-gray-400">now</p>
                          <span
                            className="material-symbols-outlined text-gray-400 ml-auto"
                            style={{ fontSize: "10px" }}
                          >
                            expand_more
                          </span>
                        </div>
                        <div className="flex items-center gap-2">
                          <div className="flex-1 min-w-0">
                            <p className="text-[10px] font-bold text-[#0f172a] break-words">
                              {title || "메시지 제목을 입력하세요"}
                            </p>
                            <p className="text-[8px] text-gray-600 mt-0.5 break-words">
                              {truncatedBody}
                            </p>
                          </div>
                          {hasImage && (
                            <div className="w-8 h-8 bg-gray-100 border border-dashed border-gray-200 rounded flex items-center justify-center flex-shrink-0">
                              <span
                                className="material-symbols-outlined text-gray-300"
                                style={{ fontSize: "12px" }}
                              >
                                image
                              </span>
                            </div>
                          )}
                        </div>
                      </div>
                      {hasImage && (
                        <div
                          className="w-full bg-gray-100 border-t border-dashed border-gray-200 flex items-center justify-center"
                          style={{ height: isLarge ? 150 : 120 }}
                        >
                          <span className="material-symbols-outlined text-gray-300 text-2xl">
                            image
                          </span>
                        </div>
                      )}
                    </div>
                    {/* 네비게이션 바 */}
                    <div className="absolute bottom-0 left-0 right-0 h-4 flex items-center justify-center gap-10 bg-black/10">
                      <span
                        className="material-symbols-outlined text-white/60"
                        style={{ fontSize: "13px" }}
                      >
                        arrow_back
                      </span>
                      <span
                        className="material-symbols-outlined text-white/60"
                        style={{ fontSize: "13px" }}
                      >
                        circle
                      </span>
                      <span
                        className="material-symbols-outlined text-white/60"
                        style={{ fontSize: "13px" }}
                      >
                        crop_square
                      </span>
                    </div>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
      )}

      <p className="text-[10px] text-gray-400 leading-relaxed text-center mt-4">
        이 미리보기는 예상 디자인입니다.
        <br />
        실제 표시는 기기 설정 및 OS 버전에 따라 다를 수 있습니다.
      </p>
    </div>
  );
}