"use client";
import "@/app/globals.css";
import { useDraggable } from "@dnd-kit/core";
import { ReactElement, useEffect, useRef, useState } from "react";
import { nearestMultiple } from "./utils";

export default function Draggable(props: DraggablePropsType) {
  const targetRef = useRef<HTMLDivElement>(null);
  const [size, setSize] = useState({ width: 16, height: 16 });
  const { id, component, data, x, y, width, height } = props;
  const { attributes, listeners, setNodeRef, transform } = useDraggable({
    id,
  });

  const style = transform
    ? {
        top: y,
        left: x,
        width: width,
        height: height,
        transform: `translate3d(${transform.x}px, ${transform.y}px, 0)`,
        opacity: 0.6,
      }
    : {
        top: y,
        left: x,
        width: width,
        height: height,
      };
  useEffect(() => {
    const element = targetRef.current;
    if (!element) return;

    // 创建 ResizeObserver 实例
    let timer: any;
    const observer = new ResizeObserver(
      _.throttle((entries: any) => {
        for (const entry of entries) {
          const { width, height } = entry.contentRect;
          setSize({
            width: nearestMultiple(width),
            height: nearestMultiple(height),
          });
          if (timer) {
            clearTimeout(timer);
          }
          // setIsResize(true);
          timer = setTimeout(() => {
            entry.target.style.width = nearestMultiple(width) + "px";
            entry.target.style.height = nearestMultiple(height) + "px";
            // syncSize(entry.contentRect, containerRef.current);
            // setIsResize(false);
          }, 150);
        }
      }, 30),
    );

    // 开始观察元素
    observer.observe(element);

    // 组件卸载时断开连接
    return () => {
      observer.disconnect();
    };
  }, []); // 空依赖数组确保只运行一次

  const className = transform ? "shadow-xl absolute w-min min-w-[128px] min-h-[128px]" : "absolute w-min resize overflow-hidden min-w-[128px] min-h-[128px]";

  return (
    <div className={className} ref={setNodeRef} style={style} {...attributes}>
      <button
        className="btn absolute top-1 right-1 z-50 btn-square btn-soft"
        {...listeners}
        onMouseDown={(e) => e.stopPropagation()}
      >
        <svg
          xmlns="http://www.w3.org/2000/svg"
          fill="none"
          viewBox="0 0 24 24"
          strokeWidth={1.5}
          stroke="currentColor"
          className="size-6"
        >
          <path
            strokeLinecap="round"
            strokeLinejoin="round"
            d="M3.75 9h16.5m-16.5 6.75h16.5"
          />
        </svg>
      </button>
      {component && component(data??{})}
    </div>
  );
}

export type DraggablePropsType = {
  id: string;
  component: (data: Record<string, unknown>) => ReactElement;
  data?: Record<string, unknown>;
  x: number;
  y: number;
  width: number;
  height: number;
};
