yattee/Model/SponsorBlock/SponsorBlockAPI.swift
2021-12-17 20:55:52 +01:00

81 lines
2.5 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 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, categories: Set<String>, completionHandler: @escaping () -> Void = {}) {
guard !skipSegmentsURL.isNil, self.videoID != videoID else {
completionHandler()
return
}
self.videoID = videoID
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)).responseJSON { [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)!
]
}
}