using System.Collections.Generic;
using UnityEngine;
using Animancer;
using BaseGames.Combat;
using BaseGames.Localization;

namespace BaseGames.Skills
{
    /// <summary>
    /// 技能资源消耗类型。
    /// </summary>
    public enum SkillResourceType { SoulPower, SpiritPower }

    /// <summary>
    /// 技能效果类型（决定施放时执行的逻辑分支）。
    /// </summary>
    public enum SkillEffectType
    {
        MeleeAoE,
        Projectile,
        BarrierAura,
        GroundDive,
        DragonKick,
        WraithDash,
        ShadowDecoy,
        DelayedExplosion
    }

    /// <summary>
    /// 反馈预设 SO（FeedbackPresetSO），封装一组 MMF_Player 反馈配置。
    /// </summary>
    [CreateAssetMenu(menuName = "BaseGames/Skills/FeedbackPreset")]
    public class FeedbackPresetSO : ScriptableObject { }

    /// <summary>
    /// 形态技能数据 SO（架构 09_ProgressionModule §8）。
    /// 路径: Assets/Scripts/Skills/FormSkillSO.cs
    /// </summary>
    [CreateAssetMenu(menuName = "BaseGames/Skills/FormSkill")]
    public class FormSkillSO : ScriptableObject, ILocalizableAsset
    {
        [Header("Identity")]
        public string     skillId;
        public string     displayNameKey;
        [TextArea(1, 3)]
        public string     descriptionKey;
        public Sprite     icon;

        [Header("Resource")]
        public SkillResourceType resourceType;
        public int        baseCost;
        public float      cooldown;

        [Header("Animation")]
        public ClipTransition castAnimation;
        public float      castLockDuration;   // 施放锁定时长（秒）

        [Header("Effect")]
        public SkillEffectType    effectType;
        public DamageSourceSO     damageSource;

        [Header("Projectile")]
        public ProjectileConfigSO projectileConfig;
        public bool       isHoming;
        public bool       holdForContinuous;

        [Header("Dash")]
        public float      dashForce;
        public float      dashDuration;
        public bool       isInvincibleDuringDash;

        [Header("Explosion")]
        public float      explosionDelay;
        public float      explosionRadius;

        [Header("Feedback")]
        public FeedbackPresetSO castFeedback;

        [Header("HitBox Prefab")]
        /// <summary>
        /// 近战/爆炸技能的命中盒 Prefab，内含 SkillHitBoxInstance + HitBox。
        /// 投射物技能此字段留空——由 ProjectileConfigSO 负责。
        /// 命名规范: Assets/Prefabs/Skills/SKL_{skillId}_HitBox.prefab
        /// </summary>
        public GameObject SkillHitBoxPrefab;

        public IEnumerable<LocalizationKeyRef> GetLocalizationKeys()
        {
            if (!string.IsNullOrEmpty(displayNameKey))
                yield return new LocalizationKeyRef(displayNameKey, "Skills", nameof(displayNameKey));
            if (!string.IsNullOrEmpty(descriptionKey))
                yield return new LocalizationKeyRef(descriptionKey, "Skills", nameof(descriptionKey));
        }
    }
}