<script lang="ts">
  import { draw } from 'svelte/transition';
  import type { DrawParams } from 'svelte/transition';
  import type { SVGAttributes } from 'svelte/elements';

  type TitleType = {
    id?: string;
    title?: string;
  };
  type DescType = {
    id?: string;
    desc?: string;
  };

  interface Props extends SVGAttributes<SVGSVGElement> {
    pauseDuration?: number;
    event?: 'hover' | 'click' | 'none';
    title?: TitleType;
    desc?: DescType;
    ariaLabel?: string;
    size?: number;
    color?: string;
    strokeWidth?: number;
    transitionParams?: DrawParams;
  }

  let {
    pauseDuration = 300,
    event = 'hover',
    size = 24,
    color = 'currentColor',
    strokeWidth = 1.5,
    title,
    desc,
    ariaLabel = 'circle stack',
    transitionParams = { duration: 500, delay: 0 },
    class: className,
    ...restProps
  }: Props = $props();

  const getDuration = (params?: DrawParams): number => {
    if (!params?.duration) return 0;
    if (typeof params.duration === 'function') {
      return params.duration(0);
    }
    return params.duration;
  };

  $effect(() => {
    visible = true;
    isAnimating = false;
  });

  let visible = $state(true);
  let totalDuration = $derived(getDuration(transitionParams) + pauseDuration);

  let ariaDescribedby = `${title?.id || ''} ${desc?.id || ''}`;
  const hasDescription = $derived(!!(title?.id || desc?.id));

  let isAnimating = $state(false);

  const handleEvent = () => {
    // Only animate if event is not 'none'
    if (event === 'none' || isAnimating) return;

    isAnimating = true;
    visible = false;

    setTimeout(() => {
      visible = true;
      isAnimating = false;
    }, totalDuration);
  };

  const eventHandlers = $derived(
    event === 'none'
      ? {} // No event handlers when event is 'none'
      : event === 'hover'
        ? { onmouseenter: handleEvent, onclick: undefined }
        : {
            onclick: handleEvent,
            onmouseenter: undefined,
            onmouseover: undefined
          }
  );
</script>

<svg
  xmlns="http://www.w3.org/2000/svg"
  {...restProps}
  {...eventHandlers}
  width={size}
  height={size}
  fill="none"
  role={event === 'none' ? 'img' : 'button'}
  aria-label={ariaLabel}
  aria-describedby={hasDescription ? ariaDescribedby : undefined}
  viewBox="0 0 24 24"
  class={className}
>
  {#if title?.id && title.title}
    <title id={title.id}>{title.title}</title>
  {/if}
  {#if desc?.id && desc.desc}
    <desc id={desc.id}>{desc.desc}</desc>
  {/if}
  {#if visible}
    <path
      d="M20.25 6.375C20.25 8.65317 16.5563 10.5 12 10.5C7.44365 10.5 3.75 8.65317 3.75 6.375M20.25 6.375C20.25 4.09683 16.5563 2.25 12 2.25C7.44365 2.25 3.75 4.09683 3.75 6.375M20.25 6.375V17.625C20.25 19.9032 16.5563 21.75 12 21.75C7.44365 21.75 3.75 19.9032 3.75 17.625V6.375M20.25 6.375V10.125M3.75 6.375V10.125M20.25 10.125V13.875C20.25 16.1532 16.5563 18 12 18C7.44365 18 3.75 16.1532 3.75 13.875V10.125M20.25 10.125C20.25 12.4032 16.5563 14.25 12 14.25C7.44365 14.25 3.75 12.4032 3.75 10.125"
      stroke={color}
      stroke-width={strokeWidth}
      transition:draw={transitionParams}
      stroke-linecap="round"
      stroke-linejoin="round"
    />
  {/if}
</svg>
