Add parser for categories (shelfRenderer)
This commit adds a new parser for YT's shelfRenderers which are
typically used to denote different categories.The code for featured
channels parsing has also been moved to use the new parser but some
additional refactoring are needed there.
The ContinuationExtractor has also been improved and is now capable of
extraction continuation data that is packaged under
"appendContinuationItemsAction"
In additional this commit adds some useful helper functions to extract
the current selected tab the continuation token. This is to mainly
reduce code size and repetition.
--
This cherry-picked commit also removes the code for parsing featured
channels present on the original.
(cherry picked from commit 8000d538db)
pull/2228/head
syeopite
4 years ago
parent
1323b94b7a
commit
a50f64f6e9
@ -0,0 +1,256 @@
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struct SearchVideo
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include DB::Serializable
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property title : String
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property id : String
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property author : String
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property ucid : String
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property published : Time
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property views : Int64
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property description_html : String
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property length_seconds : Int32
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property live_now : Bool
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property premium : Bool
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property premiere_timestamp : Time?
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def to_xml(auto_generated, query_params, xml : XML::Builder)
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query_params["v"] = self.id
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xml.element("entry") do
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xml.element("id") { xml.text "yt:video:#{self.id}" }
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xml.element("yt:videoId") { xml.text self.id }
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xml.element("yt:channelId") { xml.text self.ucid }
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xml.element("title") { xml.text self.title }
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xml.element("link", rel: "alternate", href: "#{HOST_URL}/watch?#{query_params}")
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xml.element("author") do
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if auto_generated
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xml.element("name") { xml.text self.author }
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xml.element("uri") { xml.text "#{HOST_URL}/channel/#{self.ucid}" }
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else
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xml.element("name") { xml.text author }
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xml.element("uri") { xml.text "#{HOST_URL}/channel/#{ucid}" }
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end
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end
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xml.element("content", type: "xhtml") do
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xml.element("div", xmlns: "http://www.w3.org/1999/xhtml") do
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xml.element("a", href: "#{HOST_URL}/watch?#{query_params}") do
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xml.element("img", src: "#{HOST_URL}/vi/#{self.id}/mqdefault.jpg")
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end
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xml.element("p", style: "word-break:break-word;white-space:pre-wrap") { xml.text html_to_content(self.description_html) }
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end
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end
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xml.element("published") { xml.text self.published.to_s("%Y-%m-%dT%H:%M:%S%:z") }
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xml.element("media:group") do
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xml.element("media:title") { xml.text self.title }
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xml.element("media:thumbnail", url: "#{HOST_URL}/vi/#{self.id}/mqdefault.jpg",
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width: "320", height: "180")
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xml.element("media:description") { xml.text html_to_content(self.description_html) }
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end
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xml.element("media:community") do
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xml.element("media:statistics", views: self.views)
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end
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end
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end
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def to_xml(auto_generated, query_params, xml : XML::Builder | Nil = nil)
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if xml
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to_xml(HOST_URL, auto_generated, query_params, xml)
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else
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XML.build do |json|
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to_xml(HOST_URL, auto_generated, query_params, xml)
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end
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end
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end
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def to_json(locale : Hash(String, JSON::Any), json : JSON::Builder)
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json.object do
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json.field "type", "video"
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json.field "title", self.title
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json.field "videoId", self.id
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json.field "author", self.author
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json.field "authorId", self.ucid
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json.field "authorUrl", "/channel/#{self.ucid}"
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json.field "videoThumbnails" do
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generate_thumbnails(json, self.id)
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end
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json.field "description", html_to_content(self.description_html)
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json.field "descriptionHtml", self.description_html
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json.field "viewCount", self.views
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json.field "published", self.published.to_unix
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json.field "publishedText", translate(locale, "`x` ago", recode_date(self.published, locale))
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json.field "lengthSeconds", self.length_seconds
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json.field "liveNow", self.live_now
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json.field "premium", self.premium
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json.field "isUpcoming", self.is_upcoming
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if self.premiere_timestamp
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json.field "premiereTimestamp", self.premiere_timestamp.try &.to_unix
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end
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end
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end
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def to_json(locale, json : JSON::Builder | Nil = nil)
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if json
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to_json(locale, json)
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else
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JSON.build do |json|
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to_json(locale, json)
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end
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end
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end
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def is_upcoming
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premiere_timestamp ? true : false
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end
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end
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struct SearchPlaylistVideo
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include DB::Serializable
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property title : String
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property id : String
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property length_seconds : Int32
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end
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struct SearchPlaylist
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include DB::Serializable
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property title : String
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property id : String
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property author : String
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property ucid : String
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property video_count : Int32
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property videos : Array(SearchPlaylistVideo)
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property thumbnail : String?
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def to_json(locale, json : JSON::Builder)
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json.object do
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json.field "type", "playlist"
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json.field "title", self.title
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json.field "playlistId", self.id
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json.field "playlistThumbnail", self.thumbnail
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json.field "author", self.author
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json.field "authorId", self.ucid
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json.field "authorUrl", "/channel/#{self.ucid}"
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json.field "videoCount", self.video_count
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json.field "videos" do
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json.array do
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self.videos.each do |video|
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json.object do
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json.field "title", video.title
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json.field "videoId", video.id
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json.field "lengthSeconds", video.length_seconds
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json.field "videoThumbnails" do
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generate_thumbnails(json, video.id)
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end
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end
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end
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end
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end
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end
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end
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def to_json(locale, json : JSON::Builder | Nil = nil)
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if json
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to_json(locale, json)
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else
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JSON.build do |json|
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to_json(locale, json)
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end
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end
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end
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end
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struct SearchChannel
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include DB::Serializable
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property author : String
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property ucid : String
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property author_thumbnail : String
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property subscriber_count : Int32
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property video_count : Int32
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property description_html : String
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property auto_generated : Bool
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def to_json(locale, json : JSON::Builder)
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json.object do
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json.field "type", "channel"
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json.field "author", self.author
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json.field "authorId", self.ucid
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json.field "authorUrl", "/channel/#{self.ucid}"
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json.field "authorThumbnails" do
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json.array do
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qualities = {32, 48, 76, 100, 176, 512}
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qualities.each do |quality|
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json.object do
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json.field "url", self.author_thumbnail.gsub(/=\d+/, "=s#{quality}")
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json.field "width", quality
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json.field "height", quality
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end
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end
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end
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end
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json.field "autoGenerated", self.auto_generated
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json.field "subCount", self.subscriber_count
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json.field "videoCount", self.video_count
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json.field "description", html_to_content(self.description_html)
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json.field "descriptionHtml", self.description_html
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end
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end
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def to_json(locale, json : JSON::Builder | Nil = nil)
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if json
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to_json(locale, json)
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else
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JSON.build do |json|
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to_json(locale, json)
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end
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end
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end
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end
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class Category
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include DB::Serializable
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property title : String
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property contents : Array(SearchItem) | SearchItem
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property browse_endpoint_data : String?
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property continuation_token : String?
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property badges : Array(Tuple(String, String))?
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def to_json(locale, json : JSON::Builder)
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json.object do
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json.field "title", self.title
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json.field "contents", self.contents
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end
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end
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def to_json(locale, json : JSON::Builder | Nil = nil)
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if json
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to_json(locale, json)
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else
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JSON.build do |json|
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to_json(locale, json)
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end
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end
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end
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end
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alias SearchItem = SearchVideo | SearchChannel | SearchPlaylist | Category
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