using ClaudeDo.Worker.Config;
using ClaudeDo.Worker.Runner;
using Microsoft.Extensions.Logging.Abstractions;

namespace ClaudeDo.Worker.Tests.Runner;

// Real-CLI smoke test (plan-verification §1.0 step 3). Spawns the actual `claude`
// binary and needs an authenticated session, so it is inert unless the developer
// opts in with CLAUDE_AUTHENTICATED=1. Run locally with:
//   CLAUDE_AUTHENTICATED=1 dotnet test tests/ClaudeDo.Worker.Tests \
//     --filter FullyQualifiedName~ClaudeProcessSmokeTest
// Override the binary with CLAUDEDO_CLAUDE_BIN if `claude` is not on PATH.
public class ClaudeProcessSmokeTest
{
    private static bool Enabled =>
        Environment.GetEnvironmentVariable("CLAUDE_AUTHENTICATED") == "1";

    [Fact]
    public async Task RunAsync_PingPrompt_ReturnsResultSessionAndTokens()
    {
        if (!Enabled)
        {
            Assert.True(true, "CLAUDE_AUTHENTICATED != 1 — skipping real-CLI smoke test");
            return;
        }

        var cfg = new WorkerConfig
        {
            ClaudeBin = Environment.GetEnvironmentVariable("CLAUDEDO_CLAUDE_BIN") ?? "claude",
        };
        var sut = new ClaudeProcess(cfg, NullLogger<ClaudeProcess>.Instance);
        var args = new ClaudeArgsBuilder().Build(new ClaudeRunConfig(
            Model: null, SystemPrompt: null, AgentPath: null, ResumeSessionId: null,
            MaxTurns: 3, PermissionMode: "auto"));

        var workDir = Path.Combine(Path.GetTempPath(), $"claudedo_smoke_{Guid.NewGuid():N}");
        Directory.CreateDirectory(workDir);

        var lines = new List<string>();
        try
        {
            using var cts = new CancellationTokenSource(TimeSpan.FromMinutes(2));
            var result = await sut.RunAsync(
                args,
                "Reply with exactly the word: pong",
                workDir,
                line => { lock (lines) { lines.Add(line); } return Task.CompletedTask; },
                cts.Token);

            Assert.Equal(0, result.ExitCode);
            Assert.False(string.IsNullOrWhiteSpace(result.SessionId), "session_id should be populated");
            Assert.False(string.IsNullOrWhiteSpace(result.ResultMarkdown), "result should be non-empty");
            Assert.True(result.TokensOut > 0, "output_tokens should be > 0");
        }
        finally
        {
            try { Directory.Delete(workDir, true); } catch { }
        }
    }
}