const { literal, argument, string, greedyString, SimpleCommandExceptionType } = require('brigadier-commands')
const TextMessage = require('../util/command/text_message')
const { parseDocument, DomUtils } = require('htmlparser2')

const WPTEXTBOX1_PARSE_ERROR = new SimpleCommandExceptionType(new TextMessage('Unable to parse edit page (wpTextbox1 is missing!)'))

module.exports = {
  register (dispatcher) {
    const node = dispatcher.register(
      literal('test')
        .then(
          argument('url', string())
          .then(
            argument('title', greedyString())
              .executes(c => this.testCommand(c))
          )
        )
    )

    node.description = 'Tests something'
    node.permissionLevel = 0
  },

  async testCommand (context) {
    const source = context.source
    const bot = source.bot

    let baseUrl = context.getArgument('url')
    const title = context.getArgument('title')
    if (!baseUrl.includes('://')) baseUrl = 'http://' + baseUrl
    if (baseUrl[baseUrl.length - 1] !== '/') baseUrl += '/'

    const response = await fetch(`${baseUrl}index.php?title=${encodeURIComponent(title)}&action=edit`)
    const html = await response.text()
    const document = parseDocument(html)
    const wpTextbox1 = DomUtils.getElementById('wpTextbox1', document.children)
    if (!wpTextbox1) throw WPTEXTBOX1_PARSE_ERROR.create()
    const text = DomUtils.getText(wpTextbox1)

    source.sendFeedback(text, false)
  }
}