using UnityEngine;
using UnityEngine.AI;
using Photon.Pun;

public class MovementSpeedModifierEffectInstance : StatusEffectInstance
{
    public float currentSpeedModifierPercent;

    private NavMeshAgent navMeshAgent;

    private float baseSpeed;
    private float baseTurnSpeed;
    private float baseAcceleration;

    protected override void Awake()
    {
        base.Awake();
        navMeshAgent = GetComponent<NavMeshAgent>();


        baseSpeed = navMeshAgent.speed;
        baseTurnSpeed = navMeshAgent.angularSpeed;
        baseAcceleration = navMeshAgent.acceleration;
    }

    public float ModifyMovementSpeed()
    {
        return baseSpeed * (1 + currentSpeedModifierPercent);
    }
    public float ModifyTurnSpeed()
    {
        return baseTurnSpeed * (1 + currentSpeedModifierPercent);
    }
    public float ModifyAcceleration()
    {
        return baseAcceleration * (1 + currentSpeedModifierPercent);
    }

    public float GetHighestAmount(float value)
    {
        float highestAmount = value;
        for (int i = activeStacks.Count - 1; i >= 0; i--)
        {
            if (((MovementSpeedModifierEffect)activeStacks[i]).speedModifierPercentage > highestAmount)
                highestAmount = ((MovementSpeedModifierEffect)activeStacks[i]).speedModifierPercentage;
        }

        return highestAmount;
    }

    [PunRPC]
    public void RPC_ApplyMovementSpeedModifierEffect(int effectIndex, float value)
    {
        ApplyEffect(StatusEffectIndexer.Instance.StatusEffects[effectIndex], value);
    }

    public override void ApplyEffect(StatusEffect effect, float value)
    {
        base.ApplyEffect(effect, value);
        UpdateNavMeshAgentSpeed();
    }

    protected override void AddStack(StatusEffect addedEffect, float value)
    {
        if (activeStacks.Count <= 0)
        {
            currentSpeedModifierPercent = value;
        }
        else if (canStack)
        {
            currentSpeedModifierPercent += value;
        }

        base.AddStack(addedEffect, value);
        UpdateNavMeshAgentSpeed();
    }

    protected override void RefreshEffect(StatusEffect effect, float value)
    {
        base.RefreshEffect(effect, value);

        currentSpeedModifierPercent = GetHighestAmount(value);

        OnEffectStackAdded();
        UpdateNavMeshAgentSpeed();
    }

    protected override void EffectStateEnded()
    {
        currentSpeedModifierPercent = 0;
        UpdateNavMeshAgentSpeed();
        base.EffectStateEnded();
    }

    private void UpdateNavMeshAgentSpeed()
    {
        if (navMeshAgent != null)
        {
            navMeshAgent.speed = ModifyMovementSpeed();
            navMeshAgent.speed = Mathf.Clamp(navMeshAgent.speed, baseSpeed, GameConstants.CharacterBalancing.MovementSpeedCap);
            navMeshAgent.angularSpeed = ModifyTurnSpeed();
            navMeshAgent.angularSpeed = Mathf.Clamp(navMeshAgent.angularSpeed, baseTurnSpeed, baseTurnSpeed * (1 + GameConstants.CharacterBalancing.PercentAngularSpeedCap));
            navMeshAgent.acceleration = ModifyAcceleration();
            navMeshAgent.acceleration = Mathf.Clamp(navMeshAgent.acceleration, baseAcceleration, baseAcceleration * (1 + GameConstants.CharacterBalancing.PercentAccelerationCap));
        }
    }
}