using Agent.App.Logging;
using Agent.Core.Localization;
using Agent.Mcp;

namespace Agent.Core.Tests;

public sealed class ObservabilityTests
{
    [Fact]
    public void Ready_is_always_visible_even_when_log_threshold_is_fatal()
    {
        using var directory = new TestDirectory();
        LocaleCatalog locale = LocaleCatalog.Load(Path.GetFullPath("config/locales"), "en");
        using (var application = new RollingFileLog(directory.Path, 1024 * 1024, 2, "fatal"))
        using (var observer = new McpHostLogObserver(application, locale, directory.Path, false, 1024 * 1024, 2))
            observer.Ready(new McpReadyInfo("http", "http://127.0.0.1:8080/mcp", 42, "2026-07-28", true, true));

        Assert.Contains("Agent is ready", File.ReadAllText(Path.Combine(directory.Path, "application.log")), StringComparison.Ordinal);
    }

    [Fact]
    public void Ready_and_http_request_are_logged_without_sensitive_payloads()
    {
        using var directory = new TestDirectory();
        LocaleCatalog locale = LocaleCatalog.Load(Path.GetFullPath("config/locales"), "en");
        using (var application = new RollingFileLog(directory.Path, 1024 * 1024, 2))
        {
            using var observer = new McpHostLogObserver(application, locale, directory.Path, true, 1024 * 1024, 2);
            observer.Ready(new McpReadyInfo("http", "http://127.0.0.1:8080/mcp", 42, "2026-07-28", true, true));
            observer.HttpRequestStarted(new McpHttpRequestStartInfo("connection", "trace", "127.0.0.1", 50123, "POST", "/mcp"));
            observer.HttpRequest(new McpHttpRequestInfo(DateTimeOffset.UtcNow, "connection", "trace", "127.0.0.1", 50123,
                    "127.0.0.1", 8080, "POST", "/mcp", 200, 12.5, "application/json", 100, "test-client",
                    "2026-07-28", "tools/list", "agent_run"));
        }

        string applicationText = File.ReadAllText(Path.Combine(directory.Path, "application.log"));
        Assert.Contains("Agent is ready", applicationText, StringComparison.Ordinal);
        Assert.Contains("remote=127.0.0.1:50123", applicationText, StringComparison.Ordinal);
        string httpText = File.ReadAllText(Path.Combine(directory.Path, "http.jsonl"));
        Assert.Contains("\"method\":\"POST\"", httpText, StringComparison.Ordinal);
        Assert.Contains("\"remote_ip\":\"127.0.0.1\"", httpText, StringComparison.Ordinal);
        Assert.DoesNotContain("Authorization", httpText, StringComparison.OrdinalIgnoreCase);
        Assert.DoesNotContain("Cookie", httpText, StringComparison.OrdinalIgnoreCase);
        Assert.DoesNotContain("prompt", httpText, StringComparison.OrdinalIgnoreCase);
    }
}