mastodon-docker-playground/app/views/stream_entries/_og_image.html.haml

- if activity.is_a?(Status) && (activity.non_sensitive_with_media? || (activity.with_media? && Setting.preview_sensitive_media))
  - player_card = false
  - activity.media_attachments.each do |media|
    - if media.image?
      = opengraph 'og:image', full_asset_url(media.file.url(:original))
      = opengraph 'og:image:type', media.file_content_type
      - unless media.file.meta.nil?
        = opengraph 'og:image:width', media.file.meta.dig('original', 'width')
        = opengraph 'og:image:height', media.file.meta.dig('original', 'height')
    - elsif media.video? || media.gifv?
      - player_card = true
      = opengraph 'og:image', full_asset_url(media.file.url(:small))
      = opengraph 'og:image:type', 'image/png'
      - unless media.file.meta.nil?
        = opengraph 'og:image:width', media.file.meta.dig('small', 'width')
        = opengraph 'og:image:height', media.file.meta.dig('small', 'height')
      = opengraph 'og:video', full_asset_url(media.file.url(:original))
      = opengraph 'og:video:secure_url', full_asset_url(media.file.url(:original))
      = opengraph 'og:video:type', media.file_content_type
      = opengraph 'twitter:player', medium_player_url(media)
      = opengraph 'twitter:player:stream', full_asset_url(media.file.url(:original))
      = opengraph 'twitter:player:stream:content_type', media.file_content_type
      - unless media.file.meta.nil?
        = opengraph 'og:video:width', media.file.meta.dig('original', 'width')
        = opengraph 'og:video:height', media.file.meta.dig('original', 'height')
        = opengraph 'twitter:player:width', media.file.meta.dig('original', 'width')
        = opengraph 'twitter:player:height', media.file.meta.dig('original', 'height')
  - if player_card
    = opengraph 'twitter:card', 'player'
  - else
    = opengraph 'twitter:card', 'summary_large_image'
- else
  = opengraph 'og:image', full_asset_url(account.avatar.url(:original))
  = opengraph 'og:image:width', '120'
  = opengraph 'og:image:height','120'
  = opengraph 'twitter:card', 'summary'