novdom

import { List } from "../prelude.mjs"

export default function apply() {
  String.prototype.smartSplit = function (separator) {
    return this.split(separator).filter((s) => s.length > 0)
  }

  Array.prototype.toList = function () {
    return List.fromArray(this)
  }

  List.prototype.map = function (fn) {
    let arr = []
    for (const item of this) {
      arr.push(fn(item))
    }
    return arr
  }

  List.prototype.forEach = function (fn) {
    for (const item of this) {
      fn(item)
    }
  }

  const old_addEventListener = EventTarget.prototype.addEventListener
  EventTarget.prototype.addEventListener = function (...args) {
    old_addEventListener.apply(this, args)
    const name = args[0] + "Listeners"
    if (this[name] === undefined) {
      this[name] = [args[1]]
      return
    }
    this[name] = [args[1], ...this[name]]
  }

  const old_removeEventListener = EventTarget.prototype.removeEventListener
  EventTarget.prototype.removeEventListener = function (...args) {
    const name = args[0] + "Listeners"
    if (args.length === 1) {
      if (this[name] === undefined) {
        return
      }
      this[name].forEach((l) => this.removeEventListener(args[0], l))
      return
    }

    old_removeEventListener.apply(this, args)
    if (this[name] === undefined) {
      return
    }
    this[name] = this[name].filter((l) => l !== args[1])
  }
}