Add related videos

Model/Applications/InvidiousAPI.swift

@@ -314,8 +314,8 @@ final class InvidiousAPI: Service, ObservableObject, VideosAPI {
             likes: json["likeCount"].int,
             dislikes: json["dislikeCount"].int,
             keywords: json["keywords"].arrayValue.map { $0.stringValue },
-            streams: extractFormatStreams(from: json["formatStreams"].arrayValue) +
-                extractAdaptiveFormats(from: json["adaptiveFormats"].arrayValue)
+            streams: extractStreams(from: json),
+            related: extractRelated(from: json)
         )
     }
 
@@ -349,6 +349,11 @@ final class InvidiousAPI: Service, ObservableObject, VideosAPI {
         }
     }
 
+    private static func extractStreams(from json: JSON) -> [Stream] {
+        extractFormatStreams(from: json["formatStreams"].arrayValue) +
+            extractAdaptiveFormats(from: json["adaptiveFormats"].arrayValue)
+    }
+
     private static func extractFormatStreams(from streams: [JSON]) -> [Stream] {
         streams.map {
             SingleAssetStream(
@@ -378,4 +383,11 @@ final class InvidiousAPI: Service, ObservableObject, VideosAPI {
             )
         }
     }
+
+    private static func extractRelated(from content: JSON) -> [Video] {
+        content
+            .dictionaryValue["recommendedVideos"]?
+            .arrayValue
+            .compactMap(extractVideo(from:)) ?? []
+    }
 }

Model/Applications/PipedAPI.swift

@@ -224,7 +224,8 @@ final class PipedAPI: Service, ObservableObject, VideosAPI {
             thumbnails: thumbnails,
             likes: details["likes"]?.int,
             dislikes: details["dislikes"]?.int,
-            streams: extractStreams(from: content)
+            streams: extractStreams(from: content),
+            related: extractRelated(from: content)
         )
     }
 
@@ -310,6 +311,13 @@ final class PipedAPI: Service, ObservableObject, VideosAPI {
         return streams
     }
 
+    private static func extractRelated(from content: JSON) -> [Video] {
+        content
+            .dictionaryValue["relatedStreams"]?
+            .arrayValue
+            .compactMap(extractVideo(from:)) ?? []
+    }
+
     private static func compatibleAudioStreams(from content: JSON) -> [JSON] {
         content
             .dictionaryValue["audioStreams"]?

Model/Video.swift

@@ -30,6 +30,8 @@ struct Video: Identifiable, Equatable, Hashable {
 
     var channel: Channel
 
+    var related = [Video]()
+
     init(
         id: String? = nil,
         videoID: String,
@@ -49,7 +51,8 @@ struct Video: Identifiable, Equatable, Hashable {
         likes: Int? = nil,
         dislikes: Int? = nil,
         keywords: [String] = [],
-        streams: [Stream] = []
+        streams: [Stream] = [],
+        related: [Video] = []
     ) {
         self.id = id ?? UUID().uuidString
         self.videoID = videoID
@@ -70,6 +73,7 @@ struct Video: Identifiable, Equatable, Hashable {
         self.dislikes = dislikes
         self.keywords = keywords
         self.streams = streams
+        self.related = related
     }
 
     var publishedDate: String? {