Rilascia gestione completa progetti e aggiornamenti 0.4.0

Services/AppUpdateService.cs

@@ -0,0 +1,44 @@
+using System.Net.Http.Json;
+using System.Reflection;
+using System.Text.Json.Serialization;
+
+namespace LMEMappeCatastaliApp.Services;
+
+public sealed class AppUpdateService
+{
+    private const string LatestReleaseUrl = "https://gitea.lmcloud.it/api/v1/repos/livio/LMEMappeCatastaliApp/releases/latest";
+    private readonly HttpClient _httpClient = new() { Timeout = TimeSpan.FromSeconds(20) };
+
+    public static string CurrentVersion =>
+        typeof(AppUpdateService).Assembly
+            .GetCustomAttribute<AssemblyInformationalVersionAttribute>()?
+            .InformationalVersion.Split('+')[0]
+        ?? AppInfo.Current.VersionString;
+
+    public async Task<AppUpdateResult> CheckAsync(CancellationToken cancellationToken = default)
+    {
+        var release = await _httpClient.GetFromJsonAsync<GiteaRelease>(LatestReleaseUrl, cancellationToken)
+            ?? throw new InvalidDataException("Risposta aggiornamenti non valida.");
+        var latestText = (release.TagName ?? string.Empty).TrimStart('v', 'V');
+        _ = Version.TryParse(CurrentVersion, out var current);
+        _ = Version.TryParse(latestText, out var latest);
+        var apk = release.Assets?.FirstOrDefault(item => item.Name?.EndsWith(".apk", StringComparison.OrdinalIgnoreCase) == true);
+        return new(latest is not null && current is not null && latest > current, latestText, release.HtmlUrl ?? string.Empty, apk?.BrowserDownloadUrl ?? release.HtmlUrl ?? string.Empty, release.Body ?? string.Empty);
+    }
+
+    private sealed class GiteaRelease
+    {
+        [JsonPropertyName("tag_name")] public string? TagName { get; set; }
+        [JsonPropertyName("html_url")] public string? HtmlUrl { get; set; }
+        [JsonPropertyName("assets")] public GiteaAsset[]? Assets { get; set; }
+        [JsonPropertyName("body")] public string? Body { get; set; }
+    }
+
+    private sealed class GiteaAsset
+    {
+        [JsonPropertyName("name")] public string? Name { get; set; }
+        [JsonPropertyName("browser_download_url")] public string? BrowserDownloadUrl { get; set; }
+    }
+}
+
+public sealed record AppUpdateResult(bool IsAvailable, string Version, string ReleaseUrl, string DownloadUrl, string ReleaseNotes);