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>
    /// 狂乱爪击：对随机多个敌人（可重复）各造成一次物理伤害，
    /// 每次伤害同时施加流血 Buff。
    /// 卡牌数据需配置 targetCount（攻击次数），关键词需包含 AllowDuplicateTargets 和 TargetEnemies。
    /// </summary>
    public class FrenziedClawSlashes : CardLogicBase
    {
        private const string BUFF_BLEED_STACK = "Buff_Bleed_Stack";

        private AttackContext PhysicsCtx => AttackContext.Default(card)
            .WithDamageKeywords(CardKeywords.Physics);

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

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

        /// <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(PhysicsCtx));
        }

        public override CommandGroup PlayEffect(List<CharacterBase> targetList)
        {
            // targetList 由 SetRandomTargets + AllowDuplicateTargets 提供，可包含重复目标
            return Cmd.Sequential(
                new Cmd_PlayAnimation(user.characterView, "Attack"),
                ForEachTarget(targetList, target => Cmd.Sequential(
                    Cmd.After(0.3f, () =>
                    {
                        AttackContext ctx = PhysicsCtx;
                        AttackTarget(target, GetTargetedFinalDamage(target, ctx), ctx);

                        CreateCharacterBuff<Bleed>(GetAttribute(BUFF_BLEED_STACK)).Apply(target, user, this);
                    })
                ))
            );
        }

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