const dayjs = require('dayjs')
const utc = require('dayjs/plugin/utc')
const doFetch = require('@ntlab/sfetch')
const debug = require('debug')('site:virgintvgo.virginmedia.com')

dayjs.extend(utc)

doFetch.setDebugger(debug)

const detailedGuide = true

module.exports = {
  site: 'virgintvgo.virginmedia.com',
  days: 2,
  request: {
    cache: {
      ttl: 24 * 60 * 60 * 1000 // 1 day
    }
  },
  url({ date, segment = 0 }) {
    return `https://staticqbr-prod-gb.gnp.cloud.virgintvgo.virginmedia.com/eng/web/epg-service-lite/gb/en/events/segments/${
      date.format('YYYYMMDD')
    }${
      segment.toString().padStart(2, '0')
    }0000`
  },
  async parser({ content, channel, date }) {
    const programs = []
    if (content) {
      const items = typeof content === 'string' ? JSON.parse(content) : content
      if (Array.isArray(items.entries)) {
        // fetch other segments
        const queues = [
          module.exports.url({ date, segment: 6}),
          module.exports.url({ date, segment: 12}),
          module.exports.url({ date, segment: 18}),
        ]
        await doFetch(queues, (url, res) => {
          if (Array.isArray(res.entries)) {
            items.entries.push(...res.entries)
          }
        })
        items.entries
          .filter(item => item.channelId === channel.site_id)
          .forEach(item => {
            if (Array.isArray(item.events)){
              if (detailedGuide) {
                queues.push(...item.events
                  .map(event =>
                    `https://spark-prod-gb.gnp.cloud.virgintvgo.virginmedia.com/eng/web/linear-service/v2/replayEvent/${
                      event.id
                    }?returnLinearContent=true&forceLinearResponse=true&language=en`
                  )
                )
              } else {
                item.events.forEach(event => {
                  programs.push({
                    title: event.title,
                    start: dayjs.utc(event.startTime * 1000),
                    stop: dayjs.utc(event.endTime * 1000)
                  })
                })
              }
            }
          })
        // fetch detailed guide
        if (queues.length) {
          await doFetch(queues, (url, res) => {
            programs.push({
              title: res.title,
              subTitle: res.episodeName,
              description: res.longDescription ? res.longDescription : res.shortDescription,
              category: res.genres,
              season: res.seasonNumber,
              episode: res.episodeNumber,
              country: res.countryOfOrigin,
              actor: res.actors,
              director: res.directors,
              producer: res.producers,
              date: res.productionDate,
              start: dayjs.utc(res.startTime * 1000),
              stop: dayjs.utc(res.endTime * 1000)
            })
          })
        }
      }
    }

    return programs
  },
  async channels() {
    const channels = []
    const axios = require('axios')
    const res = await axios
      .get('https://spark-prod-gb.gnp.cloud.virgintvgo.virginmedia.com/eng/web/linear-service/v2/channels?cityId=40980&language=en&productClass=Orion-DASH&platform=web')
      .then(r => r.data)
      .catch(console.error)

    if (Array.isArray(res)) {
      channels.push(...res
        .filter(item => !item.isHidden)
        .map(item => {
          return {
            lang: 'en',
            site_id: item.id,
            name: item.name
          }
        })
      )
    }

    return channels
  }
}