YTViewModel.swift

import Foundation

@available(iOS 16.0, *)
class ViewModel: ObservableObject {
  let baseURL = URL(string: "https://www.googleapis.com/youtube/v3/search")!
  let apiKey = "YOUR_GOOGLE_API_KEY"
  @Published var search = ""
  @Published var items: [Item] = []
  @Published var selectedVideo: String? = nil
  
  var url: URL {
    baseURL.appending(queryItems: [
      URLQueryItem(name: "part", value: "snippet"),
      URLQueryItem(name: "type", value: "video"),
      URLQueryItem(name: "videoEmbeddable", value: "true"),
      URLQueryItem(name: "maxResults", value: "10"),
      URLQueryItem(name: "q", value: search
        .replacingOccurrences(of: " ", with: ",")),
      URLQueryItem(name: "key", value: apiKey)
    ])
  }
  
  func performSearch() {
    URLSession.shared.dataTask(with: url) { (data, response, error) in
      guard let data, let response = try? JSONDecoder()
        .decode(YTResponse.self, from: data) else {
        fatalError("Could not parse response")
      }
      DispatchQueue.main.async {
        self.items = response.items ?? []
      }
    }
    .resume()
  }
}