using Godot;
using Mr.BrickAdventures.Autoloads;
using Mr.BrickAdventures.Progression;

namespace Mr.BrickAdventures.scripts.Events;

/// <summary>
/// Records collected coins against the current Attempt.
/// </summary>
/// <remarks>
/// Coins are banked only by a First Clear, so dying loses what was found this attempt — including
/// anything spent from it. See docs/adr/0002-attempt-is-a-ledger.md.
/// </remarks>
public partial class CoinStateHandler : Node
{
    public override void _Ready()
    {
        EventBus.Instance.CoinCollected += OnCoinCollected;
    }

    public override void _ExitTree()
    {
        if (EventBus.Instance != null)
            EventBus.Instance.CoinCollected -= OnCoinCollected;
    }

    private void OnCoinCollected(int amount, Vector2 position)
    {
        if (amount <= 0) return;

        ProgressionRoot.Instance?.RecordCoinsFound(Coins.Of(amount));
    }
}