73 lines
2.6 KiB
Swift
73 lines
2.6 KiB
Swift
import Foundation
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import SwiftUI
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@MainActor
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class AppState: ObservableObject {
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@Published var selectedRoute: Route? = nil {
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didSet {
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if let routeId = selectedRoute?.id {
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Task {
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await fetchSights(for: routeId)
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}
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} else {
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self.sights = []
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self.sightId = nil
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}
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}
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}
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@Published var allRoutes: [Route] = []
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@Published var sightId: Int? = nil
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@Published var sights: [SightModel] = [] // <- все достопримечательности маршрута
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// MARK: - Fetch Sights
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private func fetchSights(for routeId: Int) async {
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let urlString = "https://white-nights.krbl.ru/services/content/route/\(routeId)/sight"
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guard let url = URL(string: urlString) else { return }
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do {
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let (data, _) = try await URLSession.shared.data(from: url)
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let decodedSights = try JSONDecoder().decode([SightModel].self, from: data)
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DispatchQueue.main.async {
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self.sights = decodedSights
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self.sightId = decodedSights.first?.id
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}
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// 🔹 Предзагрузка миниатюр
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preloadThumbnails(for: decodedSights)
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} catch {
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print("Ошибка загрузки достопримечательностей: \(error)")
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DispatchQueue.main.async {
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self.sights = []
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self.sightId = nil
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}
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}
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}
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// MARK: - Preload thumbnails into URLCache
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private func preloadThumbnails(for sights: [SightModel]) {
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let session = URLSession.shared
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for sight in sights {
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guard let url = URL(string: "https://white-nights.krbl.ru/services/content/media/\(sight.thumbnail)/download") else { continue }
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let request = URLRequest(url: url)
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// Если уже в кэше, пропускаем
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if URLCache.shared.cachedResponse(for: request) != nil { continue }
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let task = session.dataTask(with: request) { data, response, _ in
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guard let data = data, let response = response else { return }
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let cachedResponse = CachedURLResponse(response: response, data: data)
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URLCache.shared.storeCachedResponse(cachedResponse, for: request)
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}
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task.resume()
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}
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}
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// Optional computed property
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var routeId: Int? {
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selectedRoute?.id
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}
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}
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