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import { escapeHtml } from './helpers.ts'
export class HTMLElementSSR {  public tagName: string  public isSelfClosing: boolean = false  public nodeType: null | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 = null  private _ssr: string
  constructor(tag: string) {    this.tagName = tag
    const selfClosing = [      'area',      'base',      'br',      'col',      'embed',      'hr',      'img',      'input',      'link',      'meta',      'param',      'source',      'track',      'wbr'    ]
    this.nodeType = 1
    if (selfClosing.indexOf(tag) >= 0) {      this._ssr = `<${tag} />`      this.isSelfClosing = true    } else {      this._ssr = `<${tag}></${tag}>`    }  }
  get outerHTML() {    return this.toString()  }
  get innerHTML(): string {    return this.innerText  }
  set innerHTML(text) {    this.innerText = text  }
  get innerText(): string {    const reg = /(^<[^>]+>)(.+)?(<\/[a-z0-9]+>$|\/>$)/gm    return reg.exec(this._ssr)?.[2] || ''  }
  set innerText(text) {    const reg = /(^<[^>]+>)(.+)?(<\/[a-z0-9]+>$|\/>$)/gm    const replacer = (_match: string, p1: string, _p2: string, p3: string) => [p1, text, p3].join('')    this._ssr = this._ssr.replace(reg, replacer)  }
  getAttribute(_name: any) {    return null  }
  get classList() {    const element = this._ssr
    const classesRegex = /^<\w+.+(\sclass=")([^"]+)"/gm
    return {      add: (name: string) => {        this.setAttribute('class', name)      },      entries: {        get length(): number {          const classes = classesRegex.exec(element)          if (classes && classes[2]) return classes[2].split(' ').length          return 0        }      }    }  }
  toString() {    return this._ssr  }
  setAttributeNS(_namespace: string | null, name: string, value: string) {    this.setAttribute(name, value)  }
  setAttribute(name: string, value: string) {    const replacer1 = (_match: string, p1: string, p2: string) =>      `${p1}${escapeHtml(name)}="${escapeHtml(value)}" ${p2}`    const replacer2 = (_match: string, p1: string, p2: string) =>      `${p1} ${escapeHtml(name)}="${escapeHtml(value)}"${p2}`
    if (this.isSelfClosing) this._ssr = this._ssr.replace(/(^<[a-z0-9]+ )(.+)/gm, replacer1)    else this._ssr = this._ssr.replace(/(^<[^>]+)(.+)/gm, replacer2)  }
  append(child: any) {    this.appendChild(child)  }
  appendChild(child: any) {    const index = this._ssr.lastIndexOf('</')    this._ssr = this._ssr.substring(0, index) + child + this._ssr.substring(index)  }
  get children() {    const reg = /<([a-z0-9]+)((?!<\/\1).)*<\/\1>/gms    const array = []    let match
    while ((match = reg.exec(this.innerHTML)) !== null) {      array.push(match[0].replace(/[\s]+/gm, ' '))    }
    return array  }
  addEventListener<K extends keyof DocumentEventMap>(    _type: keyof K,    _listener: (this: Document, ev: DocumentEventMap[K]) => any,    _options?: boolean | AddEventListenerOptions | undefined  ) {}}
export class DocumentSSR {  body: HTMLElement  head: HTMLElement
  constructor() {    this.body = this.createElement('body')    this.head = this.createElement('head')  }
  createElement(tag: string) {    return new HTMLElementSSR(tag) as unknown as HTMLElement  }
  createElementNS(_URI: string, tag: string) {    return this.createElement(tag)  }
  createTextNode(text: string) {    return escapeHtml(text)  }
  querySelector(_query: string) {    return undefined  }}
const documentSSR = () => {  return new DocumentSSR() as unknown as Document}
export { documentSSR }