RackPeek/RackPeek.Domain/Git/UseCases/AddRemoteUseCase.cs

namespace RackPeek.Domain.Git.UseCases;

public interface IAddRemoteUseCase
{
    Task<string?> ExecuteAsync(string url);
}

public class AddRemoteUseCase(IGitRepository repo) : IAddRemoteUseCase
{
    public Task<string?> ExecuteAsync(string url)
    {
        if (!repo.IsAvailable)
            return Task.FromResult<string?>("Git is not available.");

        if (string.IsNullOrWhiteSpace(url))
            return Task.FromResult<string?>("URL is required.");

        if (!url.Trim().StartsWith("https://", StringComparison.OrdinalIgnoreCase))
            return Task.FromResult<string?>("Only HTTPS URLs are supported.");

        if (repo.HasRemote())
            return Task.FromResult<string?>("Remote already configured.");

        try
        {
            repo.AddRemote("origin", url.Trim());
            return Task.FromResult<string?>(null);
        }
        catch (Exception ex)
        {
            return Task.FromResult<string?>($"Add remote failed: {ex.Message}");
        }
    }
}