using CounterStrikeSharp.API.Core;
using GroupVerifyApi;

namespace CS2_Tags;

// zio: GroupVerify's API (shared/GroupVerifyApi). Kept in its own class, and only created inside a
// try in OnAllPluginsLoaded, so CS2-Tags still loads, and tags as before, when GroupVerify isn't
// installed and its assembly can't be found.
internal sealed class VerifyLink : IDisposable
{
	private readonly IGroupVerifyApi _api;
	private readonly Action<CCSPlayerController> _playerChanged;
	private readonly Action _tagChanged;

	private VerifyLink(IGroupVerifyApi api, Action<CCSPlayerController> playerChanged, Action tagChanged)
	{
		_api = api;
		_playerChanged = playerChanged;
		_tagChanged = tagChanged;
		_api.OnVerifiedChanged += OnVerifiedChanged;
		_api.OnClanTagChanged += _tagChanged;
	}

	// The API, or null when GroupVerify isn't loaded.
	public static VerifyLink? TryCreate(Action<CCSPlayerController> playerChanged, Action tagChanged)
	{
		IGroupVerifyApi? api;
		try
		{
			api = IGroupVerifyApi.Capability.Get();
		}
		catch (KeyNotFoundException)
		{
			return null;
		}
		return api == null ? null : new VerifyLink(api, playerChanged, tagChanged);
	}

	// The tag verified players without a rank get, "" while none is set or GroupVerify is off.
	public string ClanTag => _api.ClanTag;

	public bool IsVerified(CCSPlayerController player) => _api.IsVerified(player);

	private void OnVerifiedChanged(CCSPlayerController player, VerifyStatus status) => _playerChanged(player);

	public void Dispose()
	{
		_api.OnVerifiedChanged -= OnVerifiedChanged;
		_api.OnClanTagChanged -= _tagChanged;
	}
}