Add Sponsor Block and settings

Model/SponsorBlock/SponsorBlockAPI.swift

@@ -0,0 +1,73 @@
+import Alamofire
+import Defaults
+import Foundation
+import Logging
+import SwiftyJSON
+
+final class SponsorBlockAPI: ObservableObject {
+    let logger = Logger(label: "net.yattee.app.sb")
+
+    static let categories = ["sponsor", "selfpromo", "intro", "outro", "interaction", "music_offtopic"]
+
+    @Published var videoID: String?
+    @Published var segments = [Segment]()
+
+    static func categoryDescription(_ name: String) -> String? {
+        guard SponsorBlockAPI.categories.contains(name) else {
+            return nil
+        }
+
+        switch name {
+        case "selfpromo":
+            return "Self-promotion"
+        case "music_offtopic":
+            return "Offtopic in Music Videos"
+        default:
+            return name.capitalized
+        }
+    }
+
+    func loadSegments(videoID: String) {
+        guard !skipSegmentsURL.isNil, self.videoID != videoID else {
+            return
+        }
+
+        self.videoID = videoID
+
+        requestSegments()
+    }
+
+    private func requestSegments() {
+        guard let url = skipSegmentsURL else {
+            return
+        }
+
+        AF.request(url, parameters: parameters).responseJSON { response in
+            switch response.result {
+            case let .success(value):
+                self.segments = JSON(value).arrayValue.map(SponsorBlockSegment.init).sorted { $0.end < $1.end }
+
+                self.logger.info("loaded \(self.segments.count) SponsorBlock segments")
+                self.segments.forEach {
+                    self.logger.info("\($0.start) -> \($0.end)")
+                }
+            case let .failure(error):
+                self.segments = []
+
+                self.logger.error("failed to load SponsorBlock segments: \(error.localizedDescription)")
+            }
+        }
+    }
+
+    private var skipSegmentsURL: String? {
+        let url = Defaults[.sponsorBlockInstance]
+        return url.isEmpty ? nil : "\(url)/api/skipSegments"
+    }
+
+    private var parameters: [String: String] {
+        [
+            "videoID": videoID!,
+            "categories": JSON(SponsorBlockAPI.categories).rawString(String.Encoding.utf8)!
+        ]
+    }
+}

Model/SponsorBlock/SponsorBlockSegment.swift

@@ -0,0 +1,24 @@
+import Foundation
+import SwiftyJSON
+
+final class SponsorBlockSegment: Segment {
+    init(_ json: JSON) {
+        super.init(
+            category: json["category"].string!,
+            segment: json["segment"].array!.map { $0.double! },
+            uuid: json["UUID"].string!,
+            videoDuration: json["videoDuration"].int!
+        )
+    }
+
+    override func title() -> String {
+        switch category {
+        case "selfpromo":
+            return "self-promotion"
+        case "music_offtopic":
+            return "offtopic"
+        default:
+            return category
+        }
+    }
+}