using Godot;
using Godot.Collections;

namespace Babushka.scripts.CSharp.Common.Farming;

[GlobalClass]
public partial class FieldService2D : Node2D
{
    [Export] private Dictionary<Vector2I, FieldBehaviour2D> fields = new Dictionary<Vector2I, FieldBehaviour2D>();
    
    private bool _fieldAllowed = false;
    
    [Signal] public delegate void FieldCreatedEventHandler();

    //Validate

    public void MouseEnteredAllowedArea()
    {
        _fieldAllowed = true;
    }

    public void MouseExitedAllowedArea()
    {
        _fieldAllowed = false;
    }
    
    public bool FieldAllowed()
    {
        return _fieldAllowed;
    }
    
    //Create
    public bool TryAddEntry(Vector2I key, FieldBehaviour2D field)
    {
        if (!fields.ContainsKey(key))
        {
            fields.Add(key, field);
            EmitSignal(SignalName.FieldCreated);
            return true;
        }
        return false;
    }
    
    // Read
    public FieldBehaviour2D Get(Vector2I key)
    {
        if (fields.TryGetValue(key, out FieldBehaviour2D field))
            return field;
        return field;
            
        return null;
    }
    
    //Update
    public void UpdateEntry(Vector2I fieldPosition, FieldBehaviour2D state)
    {
        
        if (fields.ContainsKey(fieldPosition))
        {
            fields[fieldPosition] = state;
        }
        else
        {
            TryAddEntry(fieldPosition, state);
        }
    }
    
    //Delete

    public void RemoveEntry(Vector2I fieldPosition)
    {
        if (fields.ContainsKey(fieldPosition))
        {
            fields.Remove(fieldPosition);
        }
    }
}