using ClaudeDo.Installer.Checks;
using ClaudeDo.Installer.Core;

namespace ClaudeDo.Installer.Tests.Checks;

public sealed class ClaudeAuthCheckTests : IDisposable
{
    private readonly string _dir;

    public ClaudeAuthCheckTests()
    {
        _dir = Path.Combine(Path.GetTempPath(), $"cdclaudeauth_{Guid.NewGuid():N}");
        Directory.CreateDirectory(_dir);
        File.WriteAllText(Path.Combine(_dir, "claude.exe"), "");
    }

    public void Dispose()
    {
        try { Directory.Delete(_dir, recursive: true); } catch { }
    }

    private ClaudeCliLookup MakeLookup(FakeProcessRunner runner) =>
        new(runner, pathOverride: _dir, pathExtOverride: ".exe");

    [Fact]
    public async Task Logged_in_reports_ok_without_sending_a_prompt()
    {
        var runner = new FakeProcessRunner(
            (0, "2.1.230 (Claude Code)"),
            (0, "{\"loggedIn\":true,\"authMethod\":\"claude.ai\"}"));
        var check = new ClaudeAuthCheck(MakeLookup(runner));

        var result = await check.RunAsync(new InstallContext(), CancellationToken.None);

        Assert.Equal(CheckStatus.Ok, result.Status);
        Assert.All(runner.Calls, call => Assert.DoesNotContain("-p ", call.Arguments));
        Assert.Contains(runner.Calls, call => call.Arguments.Contains("auth") && call.Arguments.Contains("status"));
    }

    [Fact]
    public async Task Logged_out_reports_failed()
    {
        var runner = new FakeProcessRunner(
            (0, "2.1.230 (Claude Code)"),
            (0, "{\"loggedIn\":false}"));
        var check = new ClaudeAuthCheck(MakeLookup(runner));

        var result = await check.RunAsync(new InstallContext(), CancellationToken.None);

        Assert.Equal(CheckStatus.Failed, result.Status);
        Assert.NotNull(result.HintKey);
    }

    [Fact]
    public async Task Unparseable_output_reports_unknown_not_failed()
    {
        var runner = new FakeProcessRunner(
            (0, "2.1.230 (Claude Code)"),
            (0, "not json"));
        var check = new ClaudeAuthCheck(MakeLookup(runner));

        var result = await check.RunAsync(new InstallContext(), CancellationToken.None);

        Assert.Equal(CheckStatus.Unknown, result.Status);
    }

    [Fact]
    public async Task Cli_missing_reports_unknown()
    {
        var emptyDir = Path.Combine(Path.GetTempPath(), $"cdclaudeauth_empty_{Guid.NewGuid():N}");
        Directory.CreateDirectory(emptyDir);
        try
        {
            var runner = new FakeProcessRunner();
            var check = new ClaudeAuthCheck(new ClaudeCliLookup(runner, pathOverride: emptyDir, pathExtOverride: ".exe"));
            var ctx = new InstallContext { ClaudeBin = "claudedo_totally_missing_cmd_9f3a1" };

            var result = await check.RunAsync(ctx, CancellationToken.None);

            Assert.Equal(CheckStatus.Unknown, result.Status);
            Assert.Empty(runner.Calls);
        }
        finally
        {
            Directory.Delete(emptyDir, recursive: true);
        }
    }
}
