using Invector;
using Invector.vItemManager;
using Invector.vMelee;
using System;
using UnityEngine;

namespace Beyond
{
    [vClassHeader("Melee Equipment", openClose = false, useHelpBox = true,
        helpBoxText = "Use this component if you also use the ItemManager in your Character")]
    public class bMeleeEquipment : bEquipment
    {
        private vMeleeWeapon _weapon;

        [SerializeField]
        private IWeaponSpecialEffects weaponEffect;

        public string damageTypeToSetOnPowered = "";
        public int powerModifier = 15;
        protected bool withoutMeleeWeapon;

        public bItemAttribute power = null;

        private void Awake()
        {
            weaponEffect = GetComponent<IWeaponSpecialEffects>();
        }

        protected virtual vMeleeWeapon meleeWeapon
        {
            get
            {
                if (!_weapon && !withoutMeleeWeapon)
                {
                    _weapon = GetComponent<vMeleeWeapon>();
                    if (!_weapon) withoutMeleeWeapon = true;
                }

                return _weapon;
            }
        }

        //add draw effect play here?
        public override void OnEquip(bItem item)
        {
            if (meleeWeapon)
            {
                var damage = item.GetItemAttribute(bItemAttributes.Damage);
                var staminaCost = item.GetItemAttribute(bItemAttributes.StaminaCost);
                var defenseRate = item.GetItemAttribute(bItemAttributes.DefenseRate);
                var defenseRange = item.GetItemAttribute(bItemAttributes.DefenseRange);
                var minDamage = item.GetItemAttribute(bItemAttributes.MinDamage);
                var maxDamage = item.GetItemAttribute(bItemAttributes.MaxDamage);
                var bonusDamage = item.GetItemAttribute(bItemAttributes.BonusDamage);
                if (bonusDamage != null)
                {
                    powerModifier = bonusDamage.value;
                }
                else
                {
                    powerModifier = 0;
                }

                if (damage != null) this.meleeWeapon.damage.damageValue = damage.value;
                if (staminaCost != null) this.meleeWeapon.staminaCost = staminaCost.value;
                if (defenseRate != null) this.meleeWeapon.defenseRate = defenseRate.value;
                if (defenseRange != null) this.meleeWeapon.defenseRange = defenseRate.value;
                if (minDamage != null) this.meleeWeapon.minDamage.damageValue = minDamage.value;
                if (maxDamage != null) this.meleeWeapon.maxDamage.damageValue = maxDamage.value;
            }
            TryToApplyPowerEffect(item);

            //add on itemmanagerconsumed event here
            base.OnEquip(item);
        }

        //could be extracted to different class actually
        private void TryToApplyPowerEffect(bItem item)
        {
            power = item.GetItemAttribute(bItemAttributes.Power);
            bItemManager itemManager = Player.Instance.ItemManager;
            if (power != null)
            {
                _weapon.onDamageHit.AddListener(RecheckPowerBehaviour);
                itemManager.onUseItem.AddListener(TryToEnableLoadedPowerEffect);

                TryToEnableLoadedPowerEffect(null);
            }
        }

        private void TryToEnableLoadedPowerEffect(bItem arg0)
        {
            if (power.value > 0)
            {
                EnableDamagingEffect();
                weaponEffect.EnableLoadedPowerEffect();
            }
            else
            {
                DisableDamagingEffect();
                weaponEffect.DisableLoadedPowerEffect();
            }
        }

        private void EnableDamagingEffect()
        {
            _weapon.damageModifier = powerModifier; //could make it load from item property
            if (damageTypeToSetOnPowered != "")
            {
                _weapon.damage.damageType = damageTypeToSetOnPowered;
            }
        }

        private void DisableDamagingEffect()
        {
            _weapon.damageModifier = 0;
            if (damageTypeToSetOnPowered != "")
            {
                _weapon.damage.damageType = "";
            }
        }

        private void RecheckPowerBehaviour(vHitInfo arg0)
        {
            if (power.value <= 0)
            {
                weaponEffect.DisableLoadedPowerEffect();
                DisableDamagingEffect();
            }
            else
            {
                power.value--;
                EnableDamagingEffect();
            }
        }

        public override void OnUnequip(bItem item)
        {
            _weapon.onDamageHit.RemoveListener(RecheckPowerBehaviour);

            bItemManager itemManager = Player.Instance.ItemManager;
            itemManager.onUseItem.RemoveListener(TryToEnableLoadedPowerEffect);
            //power.OnValueChanged -= UpdatePowerEffect;

            base.OnUnequip(item);
        }
    }
}