#if GRAPH_DESIGNER
using UnityEngine;
using Opsive.BehaviorDesigner.Runtime.Tasks;
using Opsive.BehaviorDesigner.Runtime.Tasks.Conditionals;
using BaseGames.Enemies.Abilities;

namespace BaseGames.Enemies.AI
{
    /// <summary>
    /// 条件：abilityId 当前可用（冷却完毕且未在运行）。
    /// 可选开启范围、视线、脚踏地面等调度提示检查；
    /// 仅当所有启用的条件均满足时才返回 Success。
    /// </summary>
    [TaskName("Can Use Ability?")]
    [TaskCategory("BaseGames/Enemy/Combat")]
    [TaskDescription("检查能力是否存在且冷却就绪，支持范围/视线/地面等调度提示检查")]
    public sealed class BD_CanUseAbility : Conditional
    {
        [Tooltip("能力 ScriptableObject（优先级高于下方字符串 ID）")]
        [SerializeField] private EnemyAbilitySO m_AbilitySO;

        [Tooltip("能力 ID（当 AbilitySO 未赋值时使用）")]
        [SerializeField] private string m_AbilityId = "";

        [Header("调度提示（可选）")]
        [Tooltip("启用后，检查玩家是否在 AbilitySO.preferredRange 范围内")]
        [SerializeField] private bool m_CheckRange = false;

        [Tooltip("启用后，检查 AbilitySO.requiresLineOfSight 是否满足视线条件")]
        [SerializeField] private bool m_CheckLineOfSight = false;

        [Tooltip("启用后，检查 AbilitySO.requiresGrounded 是否满足落地条件")]
        [SerializeField] private bool m_CheckGrounded = false;

        private EnemyBase _enemy;

        public override void OnAwake() => _enemy = gameObject.GetComponent<EnemyBase>();

        public override TaskStatus OnUpdate()
        {
            if (_enemy == null) return TaskStatus.Failure;

            string id = m_AbilitySO != null ? m_AbilitySO.abilityId : m_AbilityId;
            var ab = _enemy.Abilities.Get(id);
            if (ab == null || !ab.CanUse) return TaskStatus.Failure;

            // ── 调度提示检查（均可在 Inspector 独立开关）──────────────────────────
            var config = ab.Config;
            if (config != null)
            {
                if (m_CheckGrounded && config.requiresGrounded && !(_enemy.Movement?.IsGrounded ?? false))
                    return TaskStatus.Failure;

                if (m_CheckLineOfSight && config.requiresLineOfSight && !_enemy.IsPlayerVisible())
                    return TaskStatus.Failure;

                if (m_CheckRange && _enemy.Stats != null)
                {
                    float sqrDist = _enemy.Stats.SqrDistanceToPlayer;
                    float minSqr  = config.preferredMinRange * config.preferredMinRange;
                    float maxSqr  = config.preferredMaxRange * config.preferredMaxRange;
                    if (sqrDist < minSqr || sqrDist > maxSqr)
                        return TaskStatus.Failure;
                }
            }

            return TaskStatus.Success;
        }
    }
}
#endif