using UnityEngine;

namespace BaseGames.Combat
{
    /// <summary>
    /// 攻击数据源 SO。描述单次攻击的基础伤害参数。
    /// ⚡ 热路径使用零分配工厂：DamageInfo.From(sourceSO)。
    /// 仅需链式覆盖多字段时才使用 CreateBuilder()。
    /// </summary>
    [CreateAssetMenu(menuName = "Combat/DamageSource")]
    public class DamageSourceSO : ScriptableObject
    {
        [Header("Identity")]
        public string         sourceId;
        public string         skillId;

        [Header("Base")]
        public int            BaseDamage        = 10;
        public float          DamageMultiplier  = 1.0f;
        public DamageType     Type              = DamageType.Normal;
        public DamageCategory Category          = DamageCategory.NormalAttack;
        public DamageFlags    Flags             = DamageFlags.CanBeParried;
        public DamageTags     Tags              = DamageTags.MeleeHit;

        [Header("Physics")]
        public float          KnockbackForce    = 5f;
        public float          HitStunDuration   = 0.1f;
        public BreakLevel     BreakLevel        = BreakLevel.Light;

        [Header("FX")]
        public HitFxType      FxType            = HitFxType.Slash;

        [Header("Combo")]
        public float          ComboWindowDuration = 0.4f;
        public float          CancelWindowEnd     = 0.5f;

        /// <summary>
        /// 链式 Builder（特殊场景使用，热路径改用 DamageInfo.From(this)）。
        /// </summary>
        public DamageInfo.Builder CreateBuilder() => new DamageInfo.Builder()
            .SetRaw(Mathf.RoundToInt(BaseDamage * DamageMultiplier))
            .SetType(Type)
            .SetCategory(Category)
            .SetFlags(Flags)
            .SetTags(Tags)
            .SetStun(HitStunDuration)
            .SetFx(FxType)
            .SetBreak(BreakLevel)
            .SetSourceId(sourceId)
            .SetSkillId(skillId);
    }
}