const axios = require('axios')
const cheerio = require('cheerio')
const dayjs = require('dayjs')

module.exports = {
  site: 'movistarplus.es',
  days: 2,
  url({ channel, date }) {
    return `https://www.movistarplus.es/programacion-tv/${channel.site_id}/${date.format('YYYY-MM-DD')}`
  },
  async parser({ content }) {
    let programs = []
    let items = parseItems(content)
    if (!items.length) return programs

    const $ = cheerio.load(content)
    const programElements = $('div[id^="ele-"]').get()

    for (let i = 0; i < items.length; i++) {
      const el = items[i]
      let description = null

      if (programElements[i]) {
        const programDiv = $(programElements[i])
        const programLink = programDiv.find('a').attr('href')
        
        if (programLink) {
          const idMatch = programLink.match(/id=(\d+)/)
          if (idMatch && idMatch[1]) {
            description = await getProgramDescription(programLink).catch(() => null)
          }
        }
      }

      programs.push({
        title: el.item.name,
        description: description,
        start: dayjs(el.item.startDate),
        stop: dayjs(el.item.endDate)
      })
    }

    return programs
  },
  async channels() {
    const html = await axios
      .get('https://www.movistarplus.es/programacion-tv')
      .then(r => r.data)
      .catch(console.log)

    const $ = cheerio.load(html)
    let scheme = $('script:contains(ItemList)').html()
    scheme = JSON.parse(scheme)

    return scheme.itemListElement.map(el => {
      const urlParts = el.item.url.split('/')
      const site_id = urlParts.pop().toLowerCase()

      return {
        lang: 'es',
        name: el.item.name,
        site_id
      }
    })
  }
}

function parseItems(content) {
  try {
    const $ = cheerio.load(content)
    let scheme = $('script:contains("@type": "ItemList")').html()
    scheme = JSON.parse(scheme)
    if (!scheme || !Array.isArray(scheme.itemListElement)) return []

    return scheme.itemListElement
  } catch {
    return []
  }
}

async function getProgramDescription(programUrl) {
  try {
    const response = await axios.get(programUrl, {
      headers: {
        'Referer': 'https://www.movistarplus.es/programacion-tv/'
      }
    })

    const $ = cheerio.load(response.data)
    const description = $('.show-content .text p').first().text().trim() || null

    return description
  } catch (error) {
    console.error(`Error fetching description from ${programUrl}:`, error.message)
    return null
  }
}