using Godot;
using System;
using Chickensoft.AutoInject;
using Chickensoft.Introspection;
using Gamesmiths.Forge.Attributes;
using Gamesmiths.Forge.Core;
using Gamesmiths.Forge.Cues;
using Gamesmiths.Forge.Godot.Core;
using Gamesmiths.Forge.Tags;

[GlobalClass, Icon("res://assets/ui/IconGodotNode/control/icon_heart.png"), Meta(typeof(IAutoNode))]
public partial class ResourceBar : ProgressBar
{
    public override void _Notification(int what) => this.Notify(what);

    [Node("DamageCatchUp")] public required Timer DamageCatchUp { get; set; }
    [Node("Damagebar")] public required ProgressBar DamageBar { get; set; }

    [Export] public StyleBox? BarStyle;

    private float _currentValue;
    public float CurrentValue
    {
        get => _currentValue;
        set => SetValue(value);
    }
    
    public void OnReady()
    {
        DamageCatchUp.Timeout += OnDamageCatchUp;
        Visible = false;
        
        if (BarStyle != null)
            AddThemeStyleboxOverride("fill", BarStyle);
    }
    
    public void Init(EntityAttribute attribute)
    {
        _currentValue = attribute.BaseValue;
        // Should be Max but it's bugged
        // Therefore we just assume that the base value is the max value, i.e. entities spawn at full health
        MaxValue = attribute.BaseValue;  // MaxValue = attribute.Max;  
        Value = attribute.BaseValue;
        DamageBar.MaxValue = attribute.Max;
        DamageBar.Value = attribute.BaseValue;

        attribute.OnValueChanged += (entityAttribute, i) => CurrentValue = entityAttribute.CurrentValue;
    }
    
    public void SetValue(float newValue)
    {
        var previousValue = _currentValue;
        _currentValue = Mathf.Min(newValue, (float) MaxValue);
        _currentValue = newValue;
        Value = _currentValue;
        
        Visible = _currentValue < MaxValue;

        if (_currentValue < previousValue)
        {
            DamageCatchUp.Start();
        }
        else
        {
            DamageBar.Value = _currentValue;
        }
    }

    public void OnDamageCatchUp()
    {
        DamageBar.Value = _currentValue;
    }
}