using UnityEngine;
using Articy.Touhou;

namespace Game
{
    public static partial class UtilBuff
    {
        private static void BuffEffect(BuffData data, BuffEffectData buffData)
        {
            var obj = buffData.BuffObj;
            switch (obj)
            {
                case IObjectWithFeatureBuffEffectAttack _:
                    BuffEffectAttack(data, buffData);
                    break;
                case IObjectWithFeatureBuffEffectProperty _:
                    BuffEffectProperty(data, buffData);
                    break;
                case IObjectWithFeatureBuffEffectAddBuff _:
                    BuffEffectAddBuff(data, buffData);
                    break;
                case IObjectWithFeatureBuffEffectClearLevel _:
                    BuffEffectClearLevel(data, buffData);
                    break;
                case IObjectWithFeatureBuffEffectSetSpeed _:
                    BuffEffectSetSpeed(data, buffData);
                    break;
            }
        }
        private static void BuffEffectAttack(BuffData data, BuffEffectData buffData)
        {
            var obj = buffData.BuffObj;
            var buffAttack = ((IObjectWithFeatureBuffEffectAttack)obj).GetFeatureBuffEffectAttack();

            var owner = buffData.Entity;
            var target = buffData.Target;
            target.skill.HitInfo.Add(new SkillHitInfo()
            {
                SkillParam = new AttackBehaviour()
                {
                    isFlow = buffAttack.IsFlow,
                    damageRate = buffAttack.NumberValue * (1 + buffAttack.NumberValueLevel * data.Level.Value),
                    hitId = 0,
                },
                OwnerEntity = owner.ID(),
                HitEntity = target.ID(),
                HitDir = Vector3.up,
                IsDealed = false,
                SkillId = "",
                Performance = (uint)0,
                IsBreak = buffAttack.IsStun,
            });
        }
        private static void BuffEffectProperty(BuffData data, BuffEffectData buffData)
        {
            var obj = buffData.BuffObj;
            var buffProperty = ((IObjectWithFeatureBuffEffectProperty)obj).GetFeatureBuffEffectProperty();

            var target = buffData.Target;
            var property = target.property.Property[(EProperty)buffProperty.Property];

            if ((EPropertyChangeType)buffProperty.PropertyChangeType == EPropertyChangeType.Value)
            {
                property.Value += (int)buffProperty.NumberValue;
            }
            else
            {
                property.Percent += (int)buffProperty.NumberValue;
            }

        }
        private static void BuffEffectAddBuff(BuffData data, BuffEffectData buffData)
        {
            var obj = buffData.BuffObj;
            var buffAddBuff = ((IObjectWithFeatureBuffEffectAddBuff)obj).GetFeatureBuffEffectAddBuff();

            var owner = buffData.Entity;
            var target = buffData.Target;
            Util.AddBuff(owner.ID(), target.ID(), buffAddBuff.Buff.TechnicalName, 0, buffAddBuff.BuffLevel * (1 + data.Level.Value));
        }
        private static void BuffEffectClearLevel(BuffData data, BuffEffectData buffData)
        {
            var obj = buffData.BuffObj;
            var buffClearLevel = ((IObjectWithFeatureBuffEffectClearLevel)obj).GetFeatureBuffEffectClearLevel();

            var owner = buffData.Entity;
            var target = buffData.Target;
            Util.RemoveBuff(target.ID(), data.BuffId);
        }
        private static void BuffEffectSetSpeed(BuffData data, BuffEffectData buffData)
        {
            var obj = buffData.BuffObj;
            var buffSetSpeed = ((IObjectWithFeatureBuffEffectSetSpeed)obj).GetFeatureBuffEffectSetSpeed();

            var owner = buffData.Entity;
            var target = buffData.Target;

            target.move.Velocity = target.hp.LastDamageDir;
        }
    }
}