using System;
using System.Collections.Generic;
using Sirenix.OdinInspector;
using UnityEngine;

namespace SLSUtilities.Narrative
{
    /// <summary>
    /// 一个 NarrativeEntry 对应一个“剧情触发源”（如一个 NPC、一个区域、一个道具）。
    /// 它包含一个有序的条件→节点路由列表。
    /// </summary>
    [CreateAssetMenu(fileName = "NarrativeEntry", menuName = "SLSUtilities/Story System/Narrative Entry")]
    public class NarrativeEntry : SerializedScriptableObject
    {
        [TitleGroup("Identity", "剧情触发源身份标识", Alignment = TitleAlignments.Centered)]
        [Required]
        [Tooltip("全局唯一标识，对应 NPC 或触发器的 storyId (如 'OldMan', 'Forest_Gate')")]
        public string storyId;

        [TitleGroup("Routing Rules", "路由规则表 (从上到下评估，首个满足的生效)", Alignment = TitleAlignments.Centered)]
        [ListDrawerSettings(ShowPaging = true, NumberOfItemsPerPage = 10)]
        public List<NarrativeRoute> routes = new List<NarrativeRoute>();

        [TitleGroup("Fallback", "兜底处理 (当所有路由条件都不满足时播什么)", Alignment = TitleAlignments.Centered)]
        [Tooltip("兜底节点（可为空，为空则不播放任何对话）")]
        public string fallbackNode;
    }

    /// <summary>
    /// 单条路由规则：描述备注 + 条件列表 + 目标 Yarn 节点。
    /// </summary>
    [Serializable]
    public class NarrativeRoute
    {
        [LabelText("描述 (仅编辑器备注)")]
        [Required]
        [Tooltip("例如：'第一次见面'、'已购买提灯后'")]
        public string editorNote;

        [LabelText("条件列表 (全部满足才匹配)")]
        [ListDrawerSettings(ShowIndexLabels = false)]
        public List<NarrativeCondition> conditions = new List<NarrativeCondition>();

        [LabelText("目标 Yarn 节点")]
        [Required]
        [Tooltip("满足上述条件时播放的 Yarn Node 名称 (如 'OldMan_FirstMeet')")]
        public string targetNode;
    }

    /// <summary>
    /// 单个变量匹配条件：变量类型 + 变量名 + 比较方式 + 目标值。
    /// </summary>
    [Serializable]
    public class NarrativeCondition
    {
        public enum ConditionType
        {
            Bool,
            Int,
            Float,
            String
        }

        public enum CompareOp
        {
            [LabelText("==")] Equal,
            [LabelText("!=")] NotEqual,
            [LabelText(">")] Greater,
            [LabelText(">=")] GreaterOrEqual,
            [LabelText("<")] Less,
            [LabelText("<=")] LessOrEqual
        }

        [HorizontalGroup("Cond", Width = 70)]
        [HideLabel]
        public ConditionType type = ConditionType.Bool;

        [HorizontalGroup("Cond")]
        [HideLabel]
        [Required]
        [Tooltip("StorySystem 变量名 (如 'has_lantern')")]
        public string key;

        [HorizontalGroup("Cond", Width = 60)]
        [HideLabel]
        public CompareOp op = CompareOp.Equal;

        [HorizontalGroup("Cond")]
        [HideLabel]
        [Required]
        [Tooltip("对比的值，布尔值请填 true/false，其他按相应格式填写")]
        public string value;
    }
}