import React from 'react';
import { Button, ConfigProvider, Space } from 'antd';

type WaveConfig = NonNullable<Parameters<typeof ConfigProvider>[0]['wave']>;

// Prepare effect holder
const createHolder = (node: HTMLElement) => {
  const { borderWidth } = getComputedStyle(node);
  const borderWidthNum = parseInt(borderWidth, 10);

  const div = document.createElement('div');
  div.style.position = 'absolute';
  div.style.inset = `-${borderWidthNum}px`;
  div.style.borderRadius = 'inherit';
  div.style.background = 'transparent';
  div.style.zIndex = '999';
  div.style.pointerEvents = 'none';
  div.style.overflow = 'hidden';
  node.appendChild(div);

  return div;
};

const createDot = (
  holder: HTMLElement,
  color: string,
  left: number,
  top: number,
  size: number = 0,
) => {
  const dot = document.createElement('div');
  dot.style.position = 'absolute';
  dot.style.left = `${left}px`;
  dot.style.top = `${top}px`;
  dot.style.width = `${size}px`;
  dot.style.height = `${size}px`;
  dot.style.borderRadius = '50%';
  dot.style.background = color;
  dot.style.transform = 'translate(-50%, -50%)';
  dot.style.transition = `all 1s ease-out`;
  holder.appendChild(dot);

  return dot;
};

// Inset Effect
const showInsetEffect: WaveConfig['showEffect'] = (node, { event, component }) => {
  if (component !== 'Button') {
    return;
  }

  const holder = createHolder(node);

  const rect = holder.getBoundingClientRect();

  const left = event.clientX - rect.left;
  const top = event.clientY - rect.top;

  const dot = createDot(holder, 'rgba(255, 255, 255, 0.65)', left, top);

  // Motion
  requestAnimationFrame(() => {
    dot.ontransitionend = () => {
      holder.parentElement?.removeChild(holder);
    };

    dot.style.width = '200px';
    dot.style.height = '200px';
    dot.style.opacity = '0';
  });
};

// Shake Effect
const showShakeEffect: WaveConfig['showEffect'] = (node, { component }) => {
  if (component !== 'Button') {
    return;
  }

  const seq = [0, -15, 15, -5, 5, 0];
  const itv = 10;

  let steps = 0;

  function loop() {
    cancelAnimationFrame((node as any).effectTimeout);

    (node as any).effectTimeout = requestAnimationFrame(() => {
      const currentStep = Math.floor(steps / itv);
      const current = seq[currentStep];
      const next = seq[currentStep + 1];

      if (!next) {
        node.style.transform = '';
        node.style.transition = '';
        return;
      }

      // Trans from current to next by itv
      const angle = current + ((next - current) / itv) * (steps % itv);

      node.style.transform = `rotate(${angle}deg)`;
      node.style.transition = 'none';

      steps += 1;
      loop();
    });
  }

  loop();
};

// Component
const Wrapper = ({ name, ...wave }: WaveConfig & { name: string }) => (
  <ConfigProvider wave={wave}>
    <Button type="primary">{name}</Button>
  </ConfigProvider>
);

const App = () => (
  <Space style={{ padding: 24 }} size="large">
    <Wrapper name="Disabled" disabled />
    <Wrapper name="Default" />
    <Wrapper name="Inset" showEffect={showInsetEffect} />
    <Wrapper name="Shake" showEffect={showShakeEffect} />
  </Space>
);

export default App;