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yattee/Model/SponsorBlock/SponsorBlockAPI.swift
Arkadiusz Fal b3d471c8a0 Lint
2022-10-27 18:03:57 +02:00

117 lines
3.9 KiB
Swift

import Alamofire
import Defaults
import Foundation
import Logging
import SwiftyJSON
final class SponsorBlockAPI: ObservableObject {
static let categories = ["sponsor", "selfpromo", "intro", "outro", "interaction", "music_offtopic"]
let logger = Logger(label: "stream.yattee.app.sb")
@Published var videoID: String?
@Published var segments = [Segment]()
static func categoryDescription(_ name: String) -> String? {
guard Self.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
}
}
static func categoryDetails(_ name: String) -> String? {
guard Self.categories.contains(name) else {
return nil
}
switch name {
case "sponsor":
return "Part of a video promoting a product or service not directly related to the creator. " +
"The creator will receive payment or compensation in the form of money or free products."
case "selfpromo":
return "Promoting a product or service that is directly related to the creator themselves. " +
"This usually includes merchandise or promotion of monetized platforms."
case "intro":
return "Segments typically found at the start of a video that include an animation, " +
"still frame or clip which are also seen in other videos by the same creator."
case "outro":
return "Typically near or at the end of the video when the credits pop up and/or endcards are shown."
case "interaction":
return "Explicit reminders to like, subscribe or interact with them on any paid or free platform(s) (e.g. click on a video)."
case "music_offtopic":
return "For videos which feature music as the primary content."
default:
return nil
}
}
func loadSegments(videoID: String, categories: Set<String>, completionHandler: @escaping () -> Void = {}) {
guard !skipSegmentsURL.isNil, self.videoID != videoID else {
completionHandler()
return
}
self.videoID = videoID
DispatchQueue.main.async { [weak self] in
self?.requestSegments(categories: categories, completionHandler: completionHandler)
}
}
private func requestSegments(categories: Set<String>, completionHandler: @escaping () -> Void = {}) {
guard let url = skipSegmentsURL, !categories.isEmpty else {
return
}
AF.request(url, parameters: parameters(categories: categories)).responseDecodable(of: JSON.self) { [weak self] response in
guard let self = self else {
return
}
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)")
}
completionHandler()
}
}
private var skipSegmentsURL: String? {
let url = Defaults[.sponsorBlockInstance]
return url.isEmpty ? nil : "\(url)/api/skipSegments"
}
private func parameters(categories: Set<String>) -> [String: String] {
[
"videoID": videoID!,
"categories": JSON(Array(categories)).rawString(String.Encoding.utf8)!
]
}
}