using System.Collections.Generic;
using UnityEngine;
using Animancer;
using BaseGames.Combat;
using BaseGames.Skills;   // FeedbackPresetSO
using BaseGames.Localization;

namespace BaseGames.Spells
{
    /// <summary>
    /// 法术消耗的资源类型。
    /// </summary>
    public enum SpellResourceType { SoulPower, SpiritPower }

    /// <summary>
    /// 法术效果分类（决定施放时的逻辑分支）。
    /// </summary>
    public enum SpellEffectType
    {
        Projectile,         // 投射物法术
        AreaOfEffect,       // 范围爆炸
        SelfBuff,           // 自身增益（护盾/加速/再生）
        SummonShade,        // 召唤投影
        TeleportBlink,      // 瞬移
    }

    /// <summary>
    /// 法术数据 SO（架构 BaseGames.Spells）。
    /// 创建路径：Assets/Data/Spells/SPL_{spellId}.asset
    /// </summary>
    [CreateAssetMenu(menuName = "BaseGames/Spells/Spell")]
    public class SpellSO : ScriptableObject, ILocalizableAsset
    {
        [Header("Identity")]
        [Tooltip("全局唯一 ID，建议使用 GameIds 域中的常量")]
        public string spellId;
        [Tooltip("本地化 Key（从 LocalizationManager.Get(displayNameKey, \"Spells\") 获取）")]
        public string displayNameKey;
        [Tooltip("本地化 Key，格式如 \"SPL_Fireball_Desc\"。通过 LocalizationManager.Get(descriptionKey, LocalizationTable.Spells) 获取。")]
        [TextArea(1, 3)]
        public string descriptionKey;
        public Sprite icon;

        [Header("Resource")]
        public SpellResourceType resourceType;
        [Min(1)]
        public int baseCost;
        [Min(0f)]
        public float cooldown;

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

        [Header("Projectile")]
        public ProjectileConfigSO projectileConfig;
        [Tooltip("是否追踪最近敌人")]
        public bool isHoming;

        [Header("AoE")]
        [Min(0f)] public float explosionRadius;
        [Min(0f)] public float explosionDelay;

        [Header("Buff")]
        [Min(0f)] public float buffDuration;
        [Min(0f)] public float buffValue;       // 含义由 effectType 决定（如护盾量、速度倍率）

        [Header("Animation")]
        public ClipTransition castAnimation;
        [Min(0f)]
        public float castLockDuration;          // 施放锁定时长（秒）

        [Header("HitBox Prefab")]
        [Tooltip("近战/爆炸类法术的命中盒 Prefab（投射物法术留空）")]
        public GameObject spellHitBoxPrefab;

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

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