using Godot;
using MaxEffort.Code.Core;
using MaxEffort.Code.Data;

namespace MaxEffort.Code.Systems;

public abstract partial class BaseLiftSystem : Node
{
    [Export] protected float PowerPerClick = 5f;
    [Export] protected float Gravity = 2f;
    [Export] protected float TargetValue = 100f; // Distance OR Time
    
    protected float CurrentProgress = 0f;
    protected bool IsLiftComplete = false;
    protected int ActiveHazardCount = 0;
    
    public override void _Ready()
    {
        EventBus.OnLiftEffortApplied += ApplyPower;
        EventBus.OnHazardSpawned += OnHazardSpawned;
        EventBus.OnHazardResolved += OnHazardResolved;
        EventBus.OnLiftCompleted += OnLiftCompleted;
    }

    public override void _ExitTree()
    {
        EventBus.OnLiftEffortApplied -= ApplyPower;
        EventBus.OnHazardSpawned -= OnHazardSpawned;
        EventBus.OnHazardResolved -= OnHazardResolved;
        EventBus.OnLiftCompleted -= OnLiftCompleted;
    }
    
    public virtual void Initialize(float target, float gravity)
    {
        TargetValue = target;
        Gravity = gravity;
        CurrentProgress = 0f;
        IsLiftComplete = false;
        ActiveHazardCount = 0;
    }
    
    private void OnLiftCompleted(bool success)
    {
        IsLiftComplete = true;
    }

    private void OnHazardResolved(HazardType _)
    {
        ActiveHazardCount--;
        if (ActiveHazardCount < 0) ActiveHazardCount = 0;
    }

    private void OnHazardSpawned(HazardType _)
    {
        ActiveHazardCount++;
    }
    
    private void ApplyPower(float effortDelta)
    {
        if (IsLiftComplete || ActiveHazardCount > 0) return;
        HandleEffort(effortDelta);
    }
    
    protected abstract void HandleEffort(float effortDelta);
    public abstract override void _Process(double delta);
}