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import SwiftUI
import UniformTypeIdentifiers
//
//enum FilePreviewState: Equatable {
// case unloaded
// case loading
// case loaded
// case failed
//}
//
//enum FilePreviewType: Equatable {
// case unknown
// case image
// case text
//}
//
//@Observable
//final class FilePreview: HotlineFilePreviewClientDelegate {
// @ObservationIgnored let info: PreviewFileInfo
// @ObservationIgnored var client: HotlineFilePreviewClient? = nil
//
// var state: FilePreviewState = .unloaded
// var progress: Double = 0.0
//
// var data: Data? = nil
//
// #if os(iOS)
// var image: UIImage? = nil
// #elseif os(macOS)
// var image: NSImage? = nil
// #endif
//
// var text: String? = nil
// var styledText: NSAttributedString? = nil
//
// var previewType: FilePreviewType {
// let fileExtension = (info.name as NSString).pathExtension
// if let fileType = UTType(filenameExtension: fileExtension) {
// if fileType.isSubtype(of: .image) {
// return .image
// }
// else if fileType.isSubtype(of: .text) {
// return .text
// }
// }
// return .unknown
// }
//
// init(info: PreviewFileInfo) {
// self.info = info
//
// self.client = HotlineFilePreviewClient(address: info.address, port: UInt16(info.port), reference: info.id, size: UInt32(info.size))
// self.client?.delegate = self
// }
//
// func download() {
// self.client?.start()
// }
//
// func cancel() {
// self.client?.cancel()
// }
//
// func hotlineTransferStatusChanged(client: any HotlineTransferClient, reference: UInt32, status: HotlineTransferStatus, timeRemaining: TimeInterval) {
// print("FilePreview: Download status changed:", status)
//
// switch status {
// case .unconnected:
// state = .unloaded
// progress = 0.0
// case .connecting:
// state = .loading
// progress = 0.0
// case .connected:
// state = .loading
// progress = 0.0
// case .progress(let p):
// state = .loading
// progress = p
// case .failed(_):
// state = .failed
// progress = 0.0
// case .completing:
// state = .loading
// progress = 1.0
// case .completed:
// state = .loaded
// progress = 1.0
// }
// }
//
// func hotlineFilePreviewComplete(client: HotlineFilePreviewClient, reference: UInt32, data: Data) {
// self.state = .loaded
// self.data = data
//
// switch self.previewType {
// case .image:
// #if os(iOS)
// self.image = UIImage(data: data)
// #elseif os(macOS)
// self.image = NSImage(data: data)
// #endif
// case .text:
// let encoding: UInt = NSString.stringEncoding(for: data, convertedString: nil, usedLossyConversion: nil)
// if encoding != 0 {
// self.text = String(data: data, encoding: String.Encoding(rawValue: encoding))
// }
// else {
// self.text = String(data: data, encoding: .utf8)
// }
// case .unknown:
// return
// }
// }
//}
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