"use client";

import { useSearchParams, useRouter } from "next/navigation";
import { useState } from "react";

import { Button } from "@/components/ui/button";
import { useIframeSkill } from "@/hooks/use-iframe-skill";
import { cn } from "@/lib/utils";

/**
 * IframeTestPanel —— 仅用于开发阶段测试 iframe 通信功能
 *
 * 测试场景：
 * 1. mode=skill 侧边栏隐藏
 * 2. useSpecificChatMode 注入提示词
 * 3. sendSelectSkill / openSkillDialog / clearSkill
 */
export function IframeTestPanel() {
  const router = useRouter();
  const searchParams = useSearchParams();
  const iframeSkill = useIframeSkill();
  const [log, setLog] = useState<string[]>([]);
  const [open, setOpen] = useState(true);

  const isSkillMode = searchParams.get("mode") === "skill";

  function addLog(msg: string) {
    setLog((prev) => [
      `[${new Date().toLocaleTimeString()}] ${msg}`,
      ...prev.slice(0, 9),
    ]);
  }

  function handleEnterSkillMode() {
    router.push(`?mode=skill&skill_id=123&title=测试技能`);
    addLog("进入 mode=skill，URL 已更新");
  }

  function handleExitSkillMode() {
    router.push(`?`);
    addLog("退出 skill 模式");
  }

  function handleSendSelectSkill() {
    iframeSkill.sendSelectSkill("skill_001");
    addLog("postMessage → selectSkill (skill_id=skill_001)");
  }

  function handleOpenSkillDialog() {
    iframeSkill.openSkillDialog();
    addLog("postMessage → openSkillDialog");
  }

  function handleClearSkill() {
    iframeSkill.clearSkill();
    addLog("clearSkill 已调用，postMessage → skill_id=0");
  }
  if (!open) {
    return (
      <button
        className="fixed bottom-24 left-3 z-[9999] rounded-full bg-violet-500 px-3 py-1 text-xs font-bold text-white shadow-lg hover:bg-violet-600"
        onClick={() => setOpen(true)}
      >
        🧪 测试面板
      </button>
    );
  }
  return (
    <div className="fixed bottom-24 left-3 z-[9999] w-72 rounded-xl border border-violet-200 bg-white/95 shadow-2xl backdrop-blur-sm">
      {/* 标题栏 */}
      <div className="flex items-center justify-between rounded-t-xl bg-violet-500 px-3 py-2">
        <span className="text-xs font-bold text-white">🧪 iframe 通信测试</span>
        <button
          className="text-white/70 hover:text-white"
          onClick={() => setOpen(false)}
        >
          ✕
        </button>
      </div>

      <div className="space-y-3 p-3">
        {/* 当前状态 */}
        <div className="rounded-lg bg-gray-50 px-3 py-2 text-xs">
          <div className="mb-1 font-semibold text-gray-500">当前状态</div>
          <div className="flex flex-col gap-1">
            <span>
              <span className="text-gray-400">mode：</span>
              <span
                className={cn(
                  "font-mono font-bold",
                  isSkillMode ? "text-violet-600" : "text-gray-400",
                )}
              >
                {isSkillMode ? "skill ✅" : "普通"}
              </span>
            </span>
            <span>
              <span className="text-gray-400">selectedSkill：</span>
              <span className="font-mono text-violet-600">
                {iframeSkill.selectedSkill
                  ? `${iframeSkill.selectedSkill.skill_id} / ${iframeSkill.selectedSkill.title}`
                  : "无"}
              </span>
            </span>
          </div>
        </div>

        {/* 场景 1：侧边栏隐藏 */}
        <div>
          <div className="mb-1 text-xs font-semibold text-gray-500">
            ① 侧边栏隐藏（layout）
          </div>
          <div className="flex gap-2">
            <Button
              size="sm"
              className="flex-1 text-xs"
              variant="outline"
              onClick={handleEnterSkillMode}
            >
              进入 skill 模式
            </Button>
            <Button
              size="sm"
              className="flex-1 text-xs"
              variant="outline"
              onClick={handleExitSkillMode}
            >
              退出 skill 模式
            </Button>
          </div>
        </div>

        {/* 场景 2：skill 选择通信 */}
        <div>
          <div className="mb-1 text-xs font-semibold text-gray-500">
            ② postMessage 通信（发送到宿主）
          </div>
          <div className="flex flex-col gap-2">
            <Button
              size="sm"
              className="w-full bg-violet-50 text-xs text-violet-700 hover:bg-violet-100"
              variant="ghost"
              onClick={handleSendSelectSkill}
            >
              sendSelectSkill (skill_001)
            </Button>
            <Button
              size="sm"
              className="w-full bg-violet-50 text-xs text-violet-700 hover:bg-violet-100"
              variant="ghost"
              onClick={handleOpenSkillDialog}
            >
              openSkillDialog
            </Button>
            <Button
              size="sm"
              className="w-full bg-red-50 text-xs text-red-600 hover:bg-red-100"
              variant="ghost"
              onClick={handleClearSkill}
            >
              clearSkill (发送 skill_id=0)
            </Button>
          </div>
        </div>

        {/* 场景 3：接收宿主页 selectedSkill */}
        <div>
          <div className="mb-1 text-xs font-semibold text-gray-500">
            ③ 接收宿主页 selectedSkill
          </div>
          <div className="flex flex-col gap-2">
            <Button
              size="sm"
              className="w-full bg-green-50 text-xs text-green-700 hover:bg-green-100"
              variant="ghost"
              onClick={() => {
                window.postMessage(
                  { type: "selectedSkill", id: 5, title: "文档处理" },
                  "*",
                );
                addLog(
                  "模拟宿主页 → selectedSkill { id: 5, title: '文档处理' }",
                );
              }}
            >
              ✅ 模拟 selectedSkill（成功）
            </Button>
            <Button
              size="sm"
              className="w-full bg-orange-50 text-xs text-orange-700 hover:bg-orange-100"
              variant="ghost"
              onClick={() => {
                window.postMessage(
                  { type: "selectedSkill", id: 999999, title: "不存在的技能" },
                  "*",
                );
                addLog(
                  "模拟宿主页 → selectedSkill { id: 999999, title: '不存在的技能' }",
                );
              }}
            >
              ❌ 模拟 selectedSkill（失败/错误）
            </Button>
          </div>
        </div>

        {/* 日志 */}
        {log.length > 0 && (
          <div className="rounded-lg bg-gray-900 p-2">
            <div className="mb-1 text-[10px] font-semibold text-gray-400">
              操作日志
            </div>
            {log.map((l, i) => (
              <div
                key={i}
                className="truncate font-mono text-[10px] text-green-400"
              >
                {l}
              </div>
            ))}
          </div>
        )}
      </div>
    </div>
  );
}