import './wave.css'
import { App } from 'vue'

export default {
  install: (Vue: App, options = {}) => {
    Vue.directive('waves', {
      mounted(el: HTMLDivElement, binding: any) {
        el.addEventListener(
          'click',
          (e: MouseEvent) => {
            const customOpts = Object.assign(options, binding.value)
            const opts = Object.assign(
                {
                  ele: el, // 波纹作用元素
                  type: 'hit', // hit点击位置扩散center中心点扩展
                  color: 'rgba(0, 0, 0, 0.15)', // 波纹颜色
                },
                customOpts
              ),
              target = opts.ele
            if (target) {
              target.style.position = 'relative'
              target.style.overflow = 'hidden'
              const rect = target.getBoundingClientRect()
              let ripple = target.querySelector('.waves-ripple')
              if (!ripple) {
                ripple = document.createElement('span')
                ripple.className = 'waves-ripple'
                ripple.style.height = ripple.style.width = Math.max(rect.width, rect.height) + 'px'
                target.appendChild(ripple)
              } else {
                ripple.className = 'waves-ripple'
              }
              switch (opts.type) {
                case 'center':
                  ripple.style.top = rect.height / 2 - ripple.offsetHeight / 2 + 'px'
                  ripple.style.left = rect.width / 2 - ripple.offsetWidth / 2 + 'px'
                  break
                default:
                  ripple.style.top =
                    e.pageY - rect.top - ripple.offsetHeight / 2 - document.body.scrollTop + 'px'
                  ripple.style.left =
                    e.pageX - rect.left - ripple.offsetWidth / 2 - document.body.scrollLeft + 'px'
              }
              ripple.style.backgroundColor = opts.color
              ripple.className = 'waves-ripple z-active'
              return false
            }
          },
          false
        )
      },
    })
  },
}
