// api-less instagram feed

// Visitor network maybe temporary banned by Instagram because of too many requests from external websites
// so it isn't very stable implementation. You should have something for the fall-back.

import Events from '../_events'
import Consts from '../_consts'
import InstagramFeed from '@jsanahuja/instagramfeed/src/InstagramFeed'

export default ((window) => {
  const NAME = 'js-instagramfeed'
  const BODY = document.body

  const ig_media_preview = (base64data) => {
    const jpegtpl =
        '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'
    const t = atob(base64data)
    const p = t.slice(3).split('')
    const o = t
      .substring(0, 3)
      .split('')
      .map((e) => {
        return e.charCodeAt(0)
      })
    const c = atob(jpegtpl).split('')
    c[162] = String.fromCharCode(o[1])
    c[160] = String.fromCharCode(o[2])
    return base64data
      ? `data:image/jpeg;base64,${btoa(c.concat(p).join(''))}`
      : null
  }

  const loadFeed = () => {
    console.log(`${NAME}: loading`)

    document.querySelectorAll(`.${NAME}`).forEach((el, i) => {
      const ID = `InstagramFeed${i}`
      const dataset = el.dataset

      el.classList.add(`${NAME}-loading`)
      el.classList.remove(`${NAME}-loaded`, `${NAME}-error`)

      new InstagramFeed({
        username: dataset.username,
        tag: dataset.tag || null,
        display_profile: dataset['display-profile'],
        display_biography: dataset['display-biography'],
        display_gallery: dataset['display-gallery'],
        display_captions: dataset['display-captions'],
        cache_time: dataset.cache_time || 360,
        items: dataset.items || 12,
        styling: false,
        lazy_load: true,
        callback: (data) => {
          console.log(`${NAME}: data response received`)

          const list = document.createElement('div')
          list.classList.add(`${NAME}-list`, 'row')
          el.appendChild(list)

          data.edge_owner_to_timeline_media.edges.forEach((el, i) => {
            const item = el.node
            const preview = ig_media_preview(item.media_preview)

            list.innerHTML +=
              `<div class="a col ${NAME}-item"` +
              ` data-gallery="${NAME}-${ID}" data-href="${item.display_url}" data-toggle="lightbox" data-force="image">` +
              `<img id="${NAME}-${ID}-${item.id}" src="${item.display_url}" alt="${item.accessibility_caption}"` +
              `style="background:url(${preview})" />` +
              '</div>'
          })

          el.classList.remove(`${NAME}-loading`)
          el.classList.add(`${NAME}-loaded`)

          window.dispatchEvent(new Event('MetaWindowindow.initLinks'))
          window.dispatchEvent(new Event(`${NAME}.loaded`))
        },
        on_error: (e) => {
          console.error(`${NAME}: ${e}`)

          el.classList.remove(`${NAME}-loading`)
          el.classList.add(`${NAME}-error`)

          window.dispatchEvent(new Event(`${NAME}.error`))
        },
      })
    })
  }

  window.addEventListener(`${Events.LODEDANDREADY}`, loadFeed)
  window.addEventListener(`${Events.AJAX}`, loadFeed)
})(window)