/*
 * HSRemoveElement
 * @version: 3.0.1
 * @author: Preline Labs Ltd.
 * @license: Licensed under MIT and Preline UI Fair Use License (https://preline.co/docs/license.html)
 * Copyright 2024 Preline Labs Ltd.
 */

import { afterTransition } from '../../utils'

import { IRemoveElement, IRemoveElementOptions } from '../remove-element/interfaces'

import { ICollectionItem } from '../../interfaces'
import HSBasePlugin from '../base-plugin'

class HSRemoveElement extends HSBasePlugin<IRemoveElementOptions> implements IRemoveElement {
  private readonly removeTargetId: string | null
  private readonly removeTarget: HTMLElement | null
  private readonly removeTargetAnimationClass: string

  private onElementClickListener: () => void

  constructor(el: HTMLElement, options?: IRemoveElementOptions) {
    super(el, options)

    const data = el.getAttribute('data-remove-element-options')
    const dataOptions: IRemoveElementOptions = data ? JSON.parse(data) : {}
    const concatOptions = {
      ...dataOptions,
      ...options
    }

    this.removeTargetId = this.el.getAttribute('data-remove-element')
    this.removeTarget = document.querySelector(this.removeTargetId)
    this.removeTargetAnimationClass = concatOptions?.removeTargetAnimationClass || 'removing'

    if (this.removeTarget) this.init()
  }

  private elementClick() {
    this.remove()
  }

  private init() {
    this.createCollection(window.$hsRemoveElementCollection, this)

    this.onElementClickListener = () => this.elementClick()

    this.el.addEventListener('click', this.onElementClickListener)
  }

  private remove() {
    if (!this.removeTarget) return false

    this.removeTarget.classList.add(this.removeTargetAnimationClass)

    afterTransition(this.removeTarget, () => setTimeout(() => this.removeTarget.remove()))
  }

  // Public methods
  public destroy() {
    // Remove classes
    this.removeTarget.classList.remove(this.removeTargetAnimationClass)

    // Remove listeners
    this.el.removeEventListener('click', this.onElementClickListener)

    window.$hsRemoveElementCollection = window.$hsRemoveElementCollection.filter(
      ({ element }) => element.el !== this.el
    )
  }

  // Static method
  static getInstance(target: HTMLElement, isInstance?: boolean) {
    const elInCollection = window.$hsRemoveElementCollection.find(
      el =>
        el.element.el === (typeof target === 'string' ? document.querySelector(target) : target) ||
        el.element.el === (typeof target === 'string' ? document.querySelector(target) : target)
    )

    return elInCollection ? (isInstance ? elInCollection : elInCollection.element.el) : null
  }

  static autoInit() {
    if (!window.$hsRemoveElementCollection) window.$hsRemoveElementCollection = []

    if (window.$hsRemoveElementCollection)
      window.$hsRemoveElementCollection = window.$hsRemoveElementCollection.filter(({ element }) =>
        document.contains(element.el)
      )

    document.querySelectorAll('[data-remove-element]:not(.--prevent-on-load-init)').forEach((el: HTMLElement) => {
      if (!window.$hsRemoveElementCollection.find(elC => (elC?.element?.el as HTMLElement) === el))
        new HSRemoveElement(el)
    })
  }
}

declare global {
  interface Window {
    HSRemoveElement: Function
    $hsRemoveElementCollection: ICollectionItem<HSRemoveElement>[]
  }
}

window.addEventListener('load', () => {
  HSRemoveElement.autoInit()

  // Uncomment for debug
  // console.log('Remove element collection:', window.$hsRemoveElementCollection);
})

if (typeof window !== 'undefined') {
  window.HSRemoveElement = HSRemoveElement
}

export default HSRemoveElement