using Gamesmiths.Forge.Abilities;
using Gamesmiths.Forge.Core;
using Gamesmiths.Forge.Effects;
using Gamesmiths.Forge.Godot.Resources;
using Gamesmiths.Forge.Godot.Resources.Abilities;
using Godot;
using Movementtests.interfaces;
using Movementtests.tools;

namespace Movementtests.forge.abilities;

public record OnProjectileSpawned(Vector3 Direction, float SpeedMultiplier, Vector3? SpawnOffset = null, uint? CollisionOverride = null);

public class SpawnProjectileBehavior(PackedScene projectileScene) : IAbilityBehavior<OnProjectileSpawned>
{
    public void OnStarted(AbilityBehaviorContext context, OnProjectileSpawned data)
    {
        if (context.Source is not Node3D source || projectileScene.Instantiate() is not Projectile projectile)
        {
            context.InstanceHandle.End();
            return;
        }

        source.GetTree().GetCurrentScene().AddChild(projectile);
        
        // Computing projectile properties
        var offset = data.SpawnOffset ?? Vector3.Zero;
        var startPos = source is ITargetable targetable ? targetable.GetTargetGlobalPosition() : source.GlobalPosition;
        var target = context.Target as Node3D;
        var magnitude = context.Magnitude != 0 ? context.Magnitude : 1;
        var impulse = data.Direction * data.SpeedMultiplier * magnitude;
        var collisionOverride = data.CollisionOverride ?? projectile.CollisionMask;

        GD.Print(impulse);

        // Setting up projectile
        projectile.GlobalPosition = startPos + offset;
        projectile.Target = target;
        projectile.ImpulseDirection = impulse;
        projectile.CollisionMask = collisionOverride;
        
        if (projectile is ISpawnable spawnable) spawnable.Init();
        
        context.AbilityHandle.CommitAbility();
        context.InstanceHandle.End();
    }

    public void OnEnded(AbilityBehaviorContext context)
    {
    }
}


[Tool]
[GlobalClass]
public partial class ForgeSpawnProjectileBehavior : ForgeAbilityBehavior
{
    [Export] public required PackedScene Projectile { get; set; }
    public override IAbilityBehavior GetBehavior() => new SpawnProjectileBehavior(Projectile);
}