<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 = 'chart bar',
    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="M3 13.125C3 12.5037 3.50368 12 4.125 12H6.375C6.99632 12 7.5 12.5037 7.5 13.125V19.875C7.5 20.4963 6.99632 21 6.375 21H4.125C3.50368 21 3 20.4963 3 19.875V13.125Z"
      stroke={color}
      stroke-width={strokeWidth}
      transition:draw={transitionParams}
      stroke-linecap="round"
      stroke-linejoin="round"
    />
    <path
      d="M9.75 8.625C9.75 8.00368 10.2537 7.5 10.875 7.5H13.125C13.7463 7.5 14.25 8.00368 14.25 8.625V19.875C14.25 20.4963 13.7463 21 13.125 21H10.875C10.2537 21 9.75 20.4963 9.75 19.875V8.625Z"
      stroke={color}
      stroke-width={strokeWidth}
      transition:draw={transitionParams}
      stroke-linecap="round"
      stroke-linejoin="round"
    />
    <path
      d="M16.5 4.125C16.5 3.50368 17.0037 3 17.625 3H19.875C20.4963 3 21 3.50368 21 4.125V19.875C21 20.4963 20.4963 21 19.875 21H17.625C17.0037 21 16.5 20.4963 16.5 19.875V4.125Z"
      stroke={color}
      stroke-width={strokeWidth}
      transition:draw={transitionParams}
      stroke-linecap="round"
      stroke-linejoin="round"
    />
  {/if}
</svg>
