namespace Harmony.ItemValuePatches
{
    [HarmonyPatch(typeof(ItemValue))]
    [HarmonyPatch("ModifyValue")]
    public class ModifyValuePatch
    {
        public static bool Prefix(ItemValue __instance, EntityAlive _entity, ItemValue _originalItemValue, PassiveEffects _passiveEffect, ref float _originalValue, ref float _perc_value, FastTags<TagGroup.Global> _tags, bool _useMods, bool _useDurability)
        {
            if (_originalItemValue != null && _originalItemValue.Equals(__instance))
                return false;
            int seed = MinEventParams.CachedEventParam.Seed;
            if ((UnityEngine.Object)_entity != (UnityEngine.Object)null)
                seed = _entity.MinEventContext.Seed;
            ItemClass itemClass1 = __instance.ItemClass;
            if (itemClass1 != null)
            {
                if (itemClass1.Actions != null && itemClass1.Actions.Length != 0 && itemClass1.Actions[0] is ItemActionRanged)
                {
                    string[] magazineItemNames = (itemClass1.Actions[0] as ItemActionRanged).MagazineItemNames;
                    if (magazineItemNames != null)
                    {
                        ItemClass itemClass2 = ItemClass.GetItemClass(magazineItemNames[(int)__instance.SelectedAmmoTypeIndex]);
                        if (itemClass2 != null && itemClass2.Effects != null)
                            itemClass2.Effects.ModifyValue(_entity, _passiveEffect, ref _originalValue, ref _perc_value, _tags: _tags);
                    }
                }
                if (itemClass1.Effects != null)
                {
                    ItemValue itemValue1 = MinEventParams.CachedEventParam.ItemValue;
                    ItemValue itemValue2 = (UnityEngine.Object)_entity != (UnityEngine.Object)null ? _entity.MinEventContext.ItemValue : (ItemValue)null;
                    MinEventParams.CachedEventParam.Seed = (int)__instance.Seed + (__instance.Seed != (ushort)0 ? (int)_passiveEffect : 0);
                    MinEventParams.CachedEventParam.ItemValue = __instance;
                    if ((UnityEngine.Object)_entity != (UnityEngine.Object)null)
                    {
                        _entity.MinEventContext.Seed = MinEventParams.CachedEventParam.Seed;
                        _entity.MinEventContext.ItemValue = __instance;
                    }
                    float num1 = _originalValue;
                    itemClass1.Effects.ModifyValue(_entity, _passiveEffect, ref _originalValue, ref _perc_value, (float)__instance.Quality, _tags);
                    if (_useDurability)
                    {
                        switch (_passiveEffect)
                        {
                            case PassiveEffects.PhysicalDamageResist:
                                if ((double)__instance.PercentUsesLeft < 0.5)
                                {
                                    float num2 = _originalValue - num1;
                                    _originalValue = num1 + (float)((double)num2 * (double)__instance.PercentUsesLeft * 2.0);
                                    break;
                                }
                                break;
                            case PassiveEffects.ElementalDamageResist:
                                if ((double)__instance.PercentUsesLeft < 0.5)
                                {
                                    float num3 = _originalValue - num1;
                                    _originalValue = num1 + (float)((double)num3 * (double)__instance.PercentUsesLeft * 2.0);
                                    break;
                                }
                                break;
                            case PassiveEffects.BuffResistance:
                                if ((double)__instance.PercentUsesLeft < 0.5)
                                {
                                    float num4 = _originalValue - num1;
                                    _originalValue = num1 + (float)((double)num4 * (double)__instance.PercentUsesLeft * 2.0);
                                    break;
                                }
                                break;
                        }
                    }
                    MinEventParams.CachedEventParam.ItemValue = itemValue1;
                    if ((UnityEngine.Object)_entity != (UnityEngine.Object)null)
                        _entity.MinEventContext.ItemValue = itemValue2;
                }
            }
            if (_useMods)
            {
                for (int index = 0; index < __instance.CosmeticMods.Length; ++index)
                {
                    if (__instance.CosmeticMods[index] != null && __instance.CosmeticMods[index].ItemClass is ItemClassModifier)
                        __instance.CosmeticMods[index].ModifyValue(_entity, _originalItemValue, _passiveEffect, ref _originalValue, ref _perc_value, _tags);
                }
                for (int index = 0; index < __instance.Modifications.Length; ++index)
                {
                    if (__instance.Modifications[index] != null && __instance.Modifications[index].ItemClass is ItemClassModifier)
                        __instance.Modifications[index].ModifyValue(_entity, _originalItemValue, _passiveEffect, ref _originalValue, ref _perc_value, _tags);
                }
            }
            MinEventParams.CachedEventParam.Seed = seed;
            if (!((UnityEngine.Object)_entity != (UnityEngine.Object)null))
                return false;
            _entity.MinEventContext.Seed = seed;

            return false;
        }
    }
}