Aggiunto supporto al motore CLI Antigravity (agy)

Core/Engine.cs

@@ -1,4 +1,5 @@
 using System.Text.Json;
+using System.Text.RegularExpressions;
 using System.Net.Http.Headers;
 
 namespace AgentWikiUi.Core;
@@ -159,11 +160,89 @@ sealed class CodexEngine : Engine
     }
 }
 
+sealed class AgyEngine : Engine
+{
+    public override string Id => "agy";
+    public override string Name => "Antigravity";
+    public override string Author => "Antigravity";
+    public override string Executable => "agy";
+    public override bool OwnsSessionId => true;
+
+    public override ModelOption[] Models { get; } =
+    [
+        new("Gemini 3.0 Flash (Low)", "gemini-3.0-flash-low"),
+        new("Gemini 3.0 Flash (Medium)", "gemini-3.0-flash-medium"),
+        new("Gemini 3.0 Flash (High)", "gemini-3.0-flash-high"),
+        new("Claude Sonnet 4.6 (Thinking)", "claude-sonnet-4-6"),
+        new("Claude Opus 4.6 (Thinking)", "claude-opus-4-6-thinking"),
+        new("GPT-OSS 120B (Medium)", "gpt-oss-120b-medium"),
+    ];
+
+    public override string[] Efforts { get; } = ["low", "medium", "high", "xhigh", "max"];
+    public override string DefaultModelId => "gemini-3.0-flash-low";
+
+    public override List<string> BuildArgs(string prompt, string? sessionId, bool resume, string model, string effort, bool structured)
+    {
+        var args = new List<string>();
+        if (structured) args.AddRange(["--output-format", "json"]);
+        if (resume && sessionId is not null) args.AddRange(["--conversation", sessionId]);
+        if (model != "") args.AddRange(["--model", model]);
+        if (effort != "") args.AddRange(["--effort", effort]);
+        args.AddRange(["--print-timeout", "120s"]);
+        args.AddRange(["-p", prompt]); // tutti i flag vanno passati PRIMA di -p
+        return args;
+    }
+
+    public override EngineReply Parse(int code, string stdout, string stderr)
+    {
+        string? conversationId = null;
+        string? response = null;
+        string? error = null;
+
+        var trimmed = stdout.Trim();
+        if (!string.IsNullOrEmpty(trimmed))
+        {
+            var start = trimmed.IndexOf('{');
+            var end = trimmed.LastIndexOf('}');
+            if (start >= 0 && end > start)
+            {
+                try
+                {
+                    using var doc = JsonDocument.Parse(trimmed.Substring(start, end - start + 1));
+                    var root = doc.RootElement;
+                    if (root.TryGetProperty("conversation_id", out var convProp))
+                        conversationId = convProp.GetString();
+                    if (root.TryGetProperty("response", out var respProp))
+                        response = respProp.GetString();
+                    if (root.TryGetProperty("status", out var statusProp) && statusProp.GetString() != "SUCCESS")
+                        error = $"Stato {statusProp.GetString()}";
+                    if (root.TryGetProperty("error", out var errProp))
+                        error = errProp.GetString() ?? error;
+                }
+                catch (JsonException) { }
+            }
+        }
+
+        if (code != 0) return new("", conversationId, Failed(code, error ?? stderr.Trim()));
+        if (error is not null && string.IsNullOrWhiteSpace(response)) return new("", conversationId, error);
+        if (string.IsNullOrWhiteSpace(response)) return new("", conversationId, error ?? (string.IsNullOrWhiteSpace(stderr) ? "agy non ha restituito nessuna risposta." : stderr.Trim()));
+        return new(response.Trim(), conversationId, null);
+    }
+
+    public override async Task<string?> FetchLatestVersionAsync(HttpClient http, CancellationToken ct)
+    {
+        var text = await http.GetStringAsync("https://antigravity-cli-auto-updater-974169037036.us-central1.run.app", ct);
+        var m = Regex.Match(text, @"Stable Version:\s*v?(\d+\.\d+(?:\.\d+)?)");
+        return m.Success ? m.Groups[1].Value : text.Trim();
+    }
+}
+
 static class Engines
 {
     public static readonly Engine Claude = new ClaudeEngine();
     public static readonly Engine Codex = new CodexEngine();
-    public static readonly Engine[] All = [Claude, Codex];
+    public static readonly Engine Agy = new AgyEngine();
+    public static readonly Engine[] All = [Claude, Codex, Agy];
 
     public static Engine? Find(string? id) => All.FirstOrDefault(e => e.Id == id);
 }