using Controller.Bicycle;
using SicknessReduction.Visual.Vignetting;
using UnityEngine;

namespace SicknessReduction
{
    public enum ReductionValueSource
    {
        AngularVelocity,
        SteerAngle,
        SteerAngleAndSpeed
    }

    //TODO: also based on slopes
    public class DynamicReductionSource : MonoBehaviour
    {
        public RbBicycleController bikeController;

        [Header("Restriction Data")] public ReductionValueSource reductionSource;
        public float minValue = 0.3f;
        public float maxValue = 0.7f;
        public float maxValueChangePerSecond = 0.8f;

        [Tooltip("Depending on Vignetting source -> deg or deg/s")]
        public float threshold = 20f;

        private ValueBasedRestrictionSuggestor steerAngleSuggestor;
        private QueueBasedRestrictionSuggestorVector3 angularVelocitySuggestor;
        private ValueBasedRestrictionSuggestor speedSuggestor;
        
        protected float currentValue;
        protected float change;

        public float CurrentValue => currentValue;

        public float Change => change;

        protected virtual void Start()
        {
            if (reductionSource == ReductionValueSource.AngularVelocity)
            {
                angularVelocitySuggestor =
                    new QueueBasedRestrictionSuggestorVector3(threshold, minValue, maxValue, 180f); //deg/s 
            }
            else if (reductionSource == ReductionValueSource.SteerAngle || reductionSource == ReductionValueSource.SteerAngleAndSpeed)
            {
                steerAngleSuggestor =
                    new ValueBasedRestrictionSuggestor(threshold, minValue, maxValue,
                        bikeController.maxSteeringAngle); //deg
                if (reductionSource == ReductionValueSource.SteerAngleAndSpeed)
                {
                    speedSuggestor = new ValueBasedRestrictionSuggestor(0, minValue,
                        maxValue, 25f);
                }
            }
        }

        protected virtual void Update()
        {
            float desiredValue;

            if (reductionSource == ReductionValueSource.AngularVelocity)
            {
                angularVelocitySuggestor.AddValue(bikeController.rigidBody.transform.localEulerAngles);
                desiredValue = angularVelocitySuggestor.Suggestion;
            }
            else
            {
                steerAngleSuggestor.Value = bikeController.CurrentSteerAngle;
                if (reductionSource == ReductionValueSource.SteerAngle)
                {
                    desiredValue = steerAngleSuggestor.Suggestion;
                }
                else
                {
                    speedSuggestor.Value = bikeController.CurrentSpeed;
                    var steerSuggestion = steerAngleSuggestor.Suggestion;
                    var speedSuggestion = speedSuggestor.Suggestion;
                    if (steerSuggestion == 0)
                    {
                        desiredValue = 0f;
                    }
                    else
                    {
                        desiredValue = (2 * steerSuggestion + speedSuggestion) / 3;
                    }
                }
                
            }

            var desiredChange = desiredValue - currentValue;
            var maxChange = Time.deltaTime * maxValueChangePerSecond;
            change = Mathf.Sign(desiredChange) * Mathf.Min(Mathf.Abs(desiredChange), maxChange);
        }
    }
}