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| 1 | +import AppKit |
| 2 | + |
| 3 | +struct GitHubRelease: Codable { |
| 4 | + let tagName: String |
| 5 | + let name: String |
| 6 | + let body: String |
| 7 | + let htmlUrl: String |
| 8 | + |
| 9 | + enum CodingKeys: String, CodingKey { |
| 10 | + case tagName = "tag_name" |
| 11 | + case name |
| 12 | + case body |
| 13 | + case htmlUrl = "html_url" |
| 14 | + } |
| 15 | +} |
| 16 | + |
| 17 | +enum AppUpdater { |
| 18 | + static private let owner = "hronro" |
| 19 | + static private let repo = "iPortForwarder" |
| 20 | + |
| 21 | + static func checkForUpdates(explicitly: Bool = false) async { |
| 22 | + let urlString = "https://api.github.com/repos/\(owner)/\(repo)/releases/latest" |
| 23 | + |
| 24 | + let url = URL(string: urlString)! |
| 25 | + |
| 26 | + let data: Data, response: URLResponse |
| 27 | + do { |
| 28 | + let r = try await URLSession.shared.data(from: url) |
| 29 | + (data, response) = r |
| 30 | + } catch { |
| 31 | + if explicitly { |
| 32 | + await showErrorDialog(error) |
| 33 | + } |
| 34 | + return |
| 35 | + } |
| 36 | + |
| 37 | + guard let status = (response as? HTTPURLResponse)?.statusCode, status == 200 else { |
| 38 | + if explicitly { |
| 39 | + await showErrorDialog("Failed to obtain information about the latest release.") |
| 40 | + } |
| 41 | + |
| 42 | + return |
| 43 | + } |
| 44 | + |
| 45 | + let release: GitHubRelease |
| 46 | + do { |
| 47 | + release = try JSONDecoder().decode(GitHubRelease.self, from: data) |
| 48 | + } catch { |
| 49 | + if explicitly { |
| 50 | + await showErrorDialog("Failed to decode GitHub release JSON.") |
| 51 | + await showErrorDialog(error) |
| 52 | + } |
| 53 | + |
| 54 | + return |
| 55 | + } |
| 56 | + let latestVersion = release.tagName.replacingOccurrences(of: "v", with: "") |
| 57 | + let currentVersion = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "0.0.0" |
| 58 | + |
| 59 | + if self.compareVersions(latestVersion, currentVersion) { |
| 60 | + await self.presentUpdate(latestVersion) |
| 61 | + } |
| 62 | + } |
| 63 | + |
| 64 | + private static func compareVersions(_ version1: String, _ version2: String) -> Bool { |
| 65 | + let v1Components = version1.split(separator: ".").compactMap { Int($0) } |
| 66 | + let v2Components = version2.split(separator: ".").compactMap { Int($0) } |
| 67 | + |
| 68 | + let maxLength = max(v1Components.count, v2Components.count) |
| 69 | + |
| 70 | + for i in 0..<maxLength { |
| 71 | + let v1 = i < v1Components.count ? v1Components[i] : 0 |
| 72 | + let v2 = i < v2Components.count ? v2Components[i] : 0 |
| 73 | + |
| 74 | + if v1 > v2 { |
| 75 | + return true |
| 76 | + } else if v1 < v2 { |
| 77 | + return false |
| 78 | + } |
| 79 | + } |
| 80 | + |
| 81 | + return false |
| 82 | + } |
| 83 | + |
| 84 | + @MainActor private static func presentUpdate(_ newVersion: String) { |
| 85 | + let alert = NSAlert() |
| 86 | + alert.messageText = "iPortForwarder v\(newVersion) is available!" |
| 87 | + alert.addButton(withTitle: "View Release Page") |
| 88 | + alert.addButton(withTitle: "Not Now") |
| 89 | + switch alert.runModal() { |
| 90 | + case .alertFirstButtonReturn: |
| 91 | + NSWorkspace.shared.open(URL(string: "https://github.com/\(owner)/\(repo)/releases")!) |
| 92 | + default: |
| 93 | + break |
| 94 | + } |
| 95 | + } |
| 96 | +} |
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