using Godot;

/// <summary>
/// Менеджер игры - управляет состоянием игры
/// </summary>
public partial class GameManager : Node
{
    public static GameManager Instance { get; private set; } = null!;
    
    [Signal] public delegate void MoneyChangedEventHandler(decimal newAmount);
    [Signal] public delegate void DateChangedEventHandler(int year, int month, int day);
    
    public decimal Money { get; private set; } = 100000m;
    public int GameYear { get; private set; } = 1980;
    public int GameMonth { get; private set; } = 1;
    public int GameDay { get; private set; } = 1;
    
    public override void _Ready()
    {
        if (Instance != null && Instance != this)
        {
            QueueFree();
            return;
        }
        
        Instance = this;
    }
    
    public void AddMoney(decimal amount)
    {
        Money += amount;
        EmitSignal(SignalName.MoneyChanged, Money);
    }
    
    public void SpendMoney(decimal amount)
    {
        if (Money >= amount)
        {
            Money -= amount;
            EmitSignal(SignalName.MoneyChanged, Money);
        }
    }
    
    public void AdvanceTime(int ticks)
    {
        GameDay += ticks;
        if (GameDay > 30)
        {
            GameDay = 1;
            GameMonth++;
            if (GameMonth > 12)
            {
                GameMonth = 1;
                GameYear++;
            }
        }
        EmitSignal(SignalName.DateChanged, GameYear, GameMonth, GameDay);
    }
}