const axios = require('axios')
const cheerio = require('cheerio')
const path = require('path')
const dayjs = require('dayjs')
const utc = require('dayjs/plugin/utc')
const timezone = require('dayjs/plugin/timezone')
dayjs.extend(utc)
dayjs.extend(timezone)

module.exports = {
  site: 'gatotv.com',
  days: 2,
  url({ channel, date }) {
    return `https://www.gatotv.com/canal/${channel.site_id}/${date.format('YYYY-MM-DD')}`
  },
  parser({ content, date }) {
    let programs = []
    const items = parseItems(content)
    date = date.subtract(1, 'day')
    items.forEach((item, i) => {
      const $item = cheerio.load(item)
      let start = parseStart($item, date)
      if (i === 0 && start.hour() >= 5) {
        start = start.add(1, 'day')
        date = date.add(1, 'day')
      }
      let stop = parseStop($item, date)
      if (stop < start) {
        stop = stop.add(1, 'day')
        date = date.add(1, 'day')
      }

      programs.push({
        title: parseTitle($item),
        description: parseDescription($item),
        image: parseImage($item),
        start,
        stop
      })
    })

    return programs
  },
  async channels() {
    const data = await axios
      .get('https://www.gatotv.com/canales_de_tv')
      .then(response => response.data)
      .catch(console.log)

    const $ = cheerio.load(data)
    const items = $('table.tbl_tv_guide tr.tbl_EPG_row, table.tbl_tv_guide tr.tbl_EPG_rowAlternate').toArray()

    return items
      .map(item => {
        const $item = cheerio.load(item)
        const link = $item('a[href*="/canal/"]').first().attr('href')
        if (!link) return null

        let pathname
        try {
          pathname = new URL(link, 'https://www.gatotv.com').pathname
        } catch {
          return null
        }

        const name = $item('td:nth-child(2) a').text().trim() || $item('a[href*="/canal/"]').last().text().trim()
        if (!name) return null

        return {
          lang: 'es',
          site_id: path.basename(pathname),
          name
        }
      })
      .filter(Boolean)
  }
}

function parseTitle($item) {
  return $item(
    'td:nth-child(4) > div > div > a > span,td:nth-child(3) > div > div > span,td:nth-child(3) > div > div > a > span'
  ).text()
}

function parseDescription($item) {
  return $item('td:nth-child(4) > div').clone().children().remove().end().text().trim()
}

function parseImage($item) {
  return $item('td:nth-child(3) > a > img').attr('src')
}

function parseStart($item, date) {
  const time = $item('td:nth-child(1) > div > time').attr('datetime')

  return dayjs.tz(`${date.format('YYYY-MM-DD')} ${time}`, 'YYYY-MM-DD HH:mm', 'EST').utc()
}

function parseStop($item, date) {
  const time = $item('td:nth-child(2) > div > time').attr('datetime')

  return dayjs.tz(`${date.format('YYYY-MM-DD')} ${time}`, 'YYYY-MM-DD HH:mm', 'EST').utc()
}

function parseItems(content) {
  const $ = cheerio.load(content)

  return $(
    'body > div.div_content > table:nth-child(8) > tbody > tr:nth-child(2) > td:nth-child(1) > table.tbl_EPG'
  )
    .find('.tbl_EPG_row,.tbl_EPG_rowAlternate,.tbl_EPG_row_selected')
    .toArray()
}
