using System.Collections.Generic;

using UnityEngine;

namespace Colosseum.Passives
{
    /// <summary>
    /// 패시브 트리의 단일 노드 데이터입니다.
    /// </summary>
    [CreateAssetMenu(fileName = "PassiveNode", menuName = "Colosseum/Passives/Passive Node")]
    public class PassiveNodeData : ScriptableObject
    {
        [Header("기본 정보")]
        [SerializeField] private string nodeId;
        [SerializeField] private string displayName;
        [TextArea(2, 4)]
        [SerializeField] private string description;
        [SerializeField] private PassiveNodeBranch branch = PassiveNodeBranch.Common;
        [SerializeField] private PassiveNodeKind nodeKind = PassiveNodeKind.Axis;
        [SerializeField] private PassiveAxisMask axisMask = PassiveAxisMask.None;
        [Min(0)] [SerializeField] private int tier = 0;
        [Min(0)] [SerializeField] private int cost = 1;

        [Header("트리 레이아웃")]
        [Tooltip("트리 그래프 안에서 사용할 정규화 좌표 (-1 ~ 1 권장)")]
        [SerializeField] private Vector2 layoutPosition = Vector2.zero;

        [Header("연결 정보")]
        [SerializeField] private List<PassiveNodeData> prerequisiteNodes = new();
        [SerializeField] private List<PassiveNodeData> connectedNodes = new();

        [Header("효과")]
        [SerializeField] private List<PassiveEffectEntry> effects = new();

        public string NodeId => nodeId;
        public string DisplayName => displayName;
        public string Description => description;
        public PassiveNodeBranch Branch => branch;
        public PassiveNodeKind NodeKind => nodeKind;
        public PassiveAxisMask AxisMask => axisMask;
        public int Tier => tier;
        public int Cost => cost;
        public Vector2 LayoutPosition => layoutPosition;
        public IReadOnlyList<PassiveNodeData> PrerequisiteNodes => prerequisiteNodes;
        public IReadOnlyList<PassiveNodeData> ConnectedNodes => connectedNodes;
        public IReadOnlyList<PassiveEffectEntry> Effects => effects;

        private void OnValidate()
        {
            if (string.IsNullOrWhiteSpace(nodeId))
            {
                nodeId = name;
            }

            if (axisMask == PassiveAxisMask.None)
            {
                axisMask = branch switch
                {
                    PassiveNodeBranch.Attack => PassiveAxisMask.Attack,
                    PassiveNodeBranch.Defense => PassiveAxisMask.Defense,
                    PassiveNodeBranch.Support => PassiveAxisMask.Support,
                    _ => PassiveAxisMask.None,
                };
            }
        }
    }
}