using ClaudeDo.Ui.ViewModels;
using Xunit;

namespace ClaudeDo.Ui.Tests;

public class IslandsShellViewModelUpdateClaudeCliTests
{
    [Fact]
    public void Success_uses_last_non_empty_output_line()
    {
        var (success, message) = IslandsShellViewModel.SummarizeClaudeUpdateOutcome(
            0, "Checking for updates...\nSuccessfully updated to 2.1.4\n", "");

        Assert.True(success);
        Assert.Equal("Successfully updated to 2.1.4", message);
    }

    [Fact]
    public void Success_with_no_output_falls_back_to_default_message()
    {
        var (success, message) = IslandsShellViewModel.SummarizeClaudeUpdateOutcome(0, "", "");

        Assert.True(success);
        Assert.Equal("Claude CLI is already up to date.", message);
    }

    [Fact]
    public void Failure_reports_exit_code_and_last_stderr_line()
    {
        var (success, message) = IslandsShellViewModel.SummarizeClaudeUpdateOutcome(
            1, "", "network error\nrequest failed\n");

        Assert.False(success);
        Assert.Equal("Update failed (exit 1): request failed", message);
    }

    [Fact]
    public void Failure_falls_back_to_stdout_when_stderr_is_empty()
    {
        var (success, message) = IslandsShellViewModel.SummarizeClaudeUpdateOutcome(
            2, "some diagnostic line\n", "");

        Assert.False(success);
        Assert.Equal("Update failed (exit 2): some diagnostic line", message);
    }
}