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| 1 | +import AppKit |
| 2 | +import Foundation |
| 3 | + |
| 4 | +@MainActor |
| 5 | +final class UpdateManager: ObservableObject { |
| 6 | + private let owner = "jackmalcom" |
| 7 | + private let repo = "daycal" |
| 8 | + private let checkInterval: TimeInterval = 24 * 60 * 60 |
| 9 | + private let lastCheckKey = "DaycalLastUpdateCheck" |
| 10 | + private var task: Task<Void, Never>? |
| 11 | + |
| 12 | + func start() { |
| 13 | + guard task == nil else { return } |
| 14 | + task = Task { [weak self] in |
| 15 | + guard let self else { return } |
| 16 | + await self.checkIfNeeded(force: false) |
| 17 | + while !Task.isCancelled { |
| 18 | + try? await Task.sleep(nanoseconds: UInt64(self.checkInterval * 1_000_000_000)) |
| 19 | + await self.checkIfNeeded(force: true) |
| 20 | + } |
| 21 | + } |
| 22 | + } |
| 23 | + |
| 24 | + private func checkIfNeeded(force: Bool) async { |
| 25 | + let now = Date() |
| 26 | + if !force, let lastCheck = UserDefaults.standard.object(forKey: lastCheckKey) as? Date { |
| 27 | + if now.timeIntervalSince(lastCheck) < checkInterval { |
| 28 | + return |
| 29 | + } |
| 30 | + } |
| 31 | + UserDefaults.standard.set(now, forKey: lastCheckKey) |
| 32 | + |
| 33 | + do { |
| 34 | + let release = try await fetchLatestRelease() |
| 35 | + guard let latestBuild = buildNumber(from: release.tagName) else { return } |
| 36 | + let currentBuild = currentBuildNumber() |
| 37 | + guard latestBuild > currentBuild else { return } |
| 38 | + |
| 39 | + promptToUpdate(release: release) |
| 40 | + } catch { |
| 41 | + return |
| 42 | + } |
| 43 | + } |
| 44 | + |
| 45 | + private func currentBuildNumber() -> Int { |
| 46 | + let buildString = Bundle.main.object(forInfoDictionaryKey: "CFBundleVersion") as? String |
| 47 | + return Int(buildString ?? "0") ?? 0 |
| 48 | + } |
| 49 | + |
| 50 | + private func buildNumber(from tag: String) -> Int? { |
| 51 | + guard tag.hasPrefix("build-") else { return nil } |
| 52 | + return Int(tag.replacingOccurrences(of: "build-", with: "")) |
| 53 | + } |
| 54 | + |
| 55 | + private func fetchLatestRelease() async throws -> GitHubRelease { |
| 56 | + let url = URL(string: "https://api.github.com/repos/\(owner)/\(repo)/releases/latest")! |
| 57 | + let (data, response) = try await URLSession.shared.data(from: url) |
| 58 | + guard let http = response as? HTTPURLResponse, http.statusCode == 200 else { |
| 59 | + throw URLError(.badServerResponse) |
| 60 | + } |
| 61 | + return try JSONDecoder().decode(GitHubRelease.self, from: data) |
| 62 | + } |
| 63 | + |
| 64 | + private func promptToUpdate(release: GitHubRelease) { |
| 65 | + let alert = NSAlert() |
| 66 | + alert.messageText = "Update available" |
| 67 | + alert.informativeText = "A newer build of Daycal is available." |
| 68 | + alert.addButton(withTitle: "Download") |
| 69 | + alert.addButton(withTitle: "Later") |
| 70 | + |
| 71 | + let response = alert.runModal() |
| 72 | + guard response == .alertFirstButtonReturn else { return } |
| 73 | + |
| 74 | + if let assetURL = release.assets.first?.browserDownloadURL ?? release.htmlURL { |
| 75 | + NSWorkspace.shared.open(assetURL) |
| 76 | + } |
| 77 | + } |
| 78 | +} |
| 79 | + |
| 80 | +private struct GitHubRelease: Decodable { |
| 81 | + let tagName: String |
| 82 | + let htmlURL: URL? |
| 83 | + let assets: [GitHubAsset] |
| 84 | + |
| 85 | + enum CodingKeys: String, CodingKey { |
| 86 | + case tagName = "tag_name" |
| 87 | + case htmlURL = "html_url" |
| 88 | + case assets |
| 89 | + } |
| 90 | +} |
| 91 | + |
| 92 | +private struct GitHubAsset: Decodable { |
| 93 | + let browserDownloadURL: URL |
| 94 | + |
| 95 | + enum CodingKeys: String, CodingKey { |
| 96 | + case browserDownloadURL = "browser_download_url" |
| 97 | + } |
| 98 | +} |
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