using System.Collections.Generic;
using Continentis.MainGame;
using Continentis.MainGame.Card;
using Continentis.MainGame.Character;
using Continentis.MainGame.Commands;
using Continentis.Mods.Basic.Buffs;
using SLSUtilities.General;

namespace Continentis.Mods.Basic.Cards
{
    /// <summary>
    /// 冻伤：对单体目标造成冰属性伤害，并施加冻结和易伤 Buff。
    /// </summary>
    public class Frostbite : CardLogicBase
    {
        private const string BUFF_FREEZE_COUNT     = "Buff_Freeze_Count";
        private const string BUFF_VULNERABLE_COUNT = "Buff_Vulnerable_Count";

        private AttackContext IceCtx => AttackContext.Default(card)
            .WithDamageKeywords(CardKeywords.Ice);

        public override void SetUpLogicComponents()
        {
            AddLogicComponent<CardLogicComponent_Attack>();
        }

        /// <summary>选中目标时更新伤害预览。</summary>
        public override void TargetingEffect(CharacterBase target)
        {
            card.SetAttribute("Display_Damage", GetTargetedFinalDamage(target, IceCtx));
        }

        /// <summary>取消选中时以无目标模式刷新预览。</summary>
        public override void UntargetingEffect()
        {
            card.SetAttribute("Display_Damage", GetNoTargetFinalDamage(IceCtx));
        }

        public override CommandGroup PlayEffect(List<CharacterBase> targetList)
        {
            return ForEachTarget(targetList, target => Cmd.Sequential(
                new Cmd_PlayAnimation(user.characterView, "Attack"),
                Cmd.Do(() =>
                {
                    AttackContext ctx = IceCtx;
                    AttackTarget(target, GetTargetedFinalDamage(target, ctx), ctx);

                    CreateCharacterBuff<Freeze>(GetAttribute(BUFF_FREEZE_COUNT)).Apply(target, user, this);
                    CreateCharacterBuff<Vulnerable>(GetAttribute(BUFF_VULNERABLE_COUNT)).Apply(target, user, this);
                })
            ));
        }

        public override void ApplyAttributeChangesByCard()
        {
            LogicComponent<CardLogicComponent_Attack>().SetDamage_Magic();
        }
    }
}