import { useEffect, useState } from "react";
import { SingleChoice } from "@/components";
import type { SingleChoiceQuizPanelProps } from "./types";

/**
 * 单选题面板组件
 *
 * 内部管理选择状态，点击选项后自动提交并验证答案
 *
 * @example
 * ```tsx
 * <SingleChoiceQuizPanel
 *   visible={true}
 *   title="这是一道单选题"
 *   options={[
 *     { value: "A", label: "选项A" },
 *     { value: "B", label: "选项B" },
 *   ]}
 *   correctAnswer="B"
 *   errorMessage="再想一想，注意题干中的时间和提示信息哦～"
 *   onSubmit={(value, isCorrect) => {
 *     console.log("用户选择:", value, "是否正确:", isCorrect);
 *   }}
 *   onError={(error) => {
 *     console.log("错误信息:", error);
 *   }}
 * />
 * ```
 */
const SingleChoiceQuizPanel = ({
  visible,
  zIndex = 10000,
  title,
  options,
  correctAnswer,
  errorMessage,
  onSubmit,
  onWrongSelect,
  onError,
  disabled = false,
}: SingleChoiceQuizPanelProps) => {
  const [selectedValue, setSelectedValue] = useState<string>("");
  const [error, setError] = useState<string>("");

  // 当窗口关闭时，重置内部状态
  useEffect(() => {
    if (!visible) {
      setSelectedValue("");
      setError("");
    }
  }, [visible]);

  if (!visible) return null;

  // 处理选项点击
  const handleOptionClick = (value: string) => {
    if (disabled) return;

    setSelectedValue(value);
    setError("");

    // 验证答案
    const isCorrect =
      correctAnswer !== undefined ? value === correctAnswer : undefined;

    // 如果提供了正确答案，进行验证
    if (correctAnswer !== undefined) {
      if (isCorrect) {
        // 答题成功：清空状态，执行 onSubmit（外部控制关闭窗口）
        setSelectedValue("");
        setError("");
        onSubmit?.(value, true);
      } else {
        // 答题失败：清空状态，执行 onError，允许重新选择
        setSelectedValue("");
        const customError = onWrongSelect?.(value);
        const errorMsg =
          customError || errorMessage || "很抱歉，你选错了！请你再思考一下吧！";
        setError(errorMsg);
        onError?.(errorMsg);
      }
    } else {
      // 没有提供正确答案，直接提交
      setSelectedValue("");
      setError("");
      onSubmit?.(value, true);
    }
  };

  return (
    <div
      className="fixed inset-0 flex items-center justify-center bg-black/40"
      style={{ zIndex }}
    >
      <div className="relative w-[1728px] h-[972px] flex flex-col items-center justify-center">
        {/* 题干卡片 */}
        <div className="w-[1700px] rounded-[32px] bg-black px-20 py-8 shadow-[0_20px_60px_rgba(240,190,117,0.8)] border-4 border-[#d4c5a9]">
          <div className="text-[34px] leading-relaxed text-white">{title}</div>

          {/* 答案反馈 */}
          {error && (
            <div className="mt-5 text-center text-[26px] text-[#fcbe53]">
              {error}
            </div>
          )}
        </div>

        {/* 选项区域 */}
        <div className="mt-16">
          <SingleChoice
            options={options}
            value={selectedValue}
            disabled={disabled}
            renderOption={(option, isSelected) => (
              <div
                key={option.value}
                className="mb-6 cursor-pointer"
                onClick={() => handleOptionClick(option.value)}
              >
                <div
                  className={`w-[1500px] flex items-center p-4 text-[28px] leading-relaxed rounded-tr-[50px] rounded-bl-4xl  transition-all duration-150 ${
                    disabled
                      ? "opacity-60 cursor-not-allowed"
                      : "cursor-pointer"
                  } ${
                    isSelected
                      ? "bg-[#d4a574] text-[#5c3e2e]"
                      : "bg-[#d7b888] text-[#5c3e2e] hover:bg-gradient-to-r from-[#ddf3e1] to-[#fbdd97]"
                  }`}
                >
                  {option.label}
                </div>
              </div>
            )}
          />
        </div>
      </div>
    </div>
  );
};

export default SingleChoiceQuizPanel;