using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
using BaseGames.Progression;

namespace BaseGames.Editor.Achievements
{
    /// <summary>
    /// AchievementSO 自定义 Inspector（架构 16_SupportingModules §2.4）。
    /// 在 conditions 数组中内联展示各 AchievementCondition SO 的关键字段，
    /// 并在头部显示条件类型的中文名，提供 Ping 和删除按钮。
    /// </summary>
    [CustomEditor(typeof(AchievementSO))]
    public class AchievementSOEditor : UnityEditor.Editor
    {
        private static readonly Dictionary<string, string> _conditionLabels = new()
        {
            { "DefeatedBossCondition",        "击败 Boss" },
            { "DefeatedAllBossesCondition",   "击败全部 Boss" },
            { "EnteredRegionCondition",        "到达区域" },
            { "MapExplorationCondition",       "地图探索 %" },
            { "CollectedItemCondition",        "收集物品" },
            { "CollectedAllCharmsCondition",   "集满全部 Charm" },
            { "UnlockedAllAbilitiesCondition", "解锁全部能力" },
            { "NoHealRunCondition",            "无治疗通关" },
            { "TimedBossKillCondition",        "限时击败 Boss" },
            { "ParryCountCondition",           "弹反 N 次" },
            { "NailClashCountCondition",       "拼刀 N 次" },
            { "EventTriggeredCondition",       "监听事件" },
        };

        private SerializedProperty _conditionsProp;

        private void OnEnable()
        {
            _conditionsProp = serializedObject.FindProperty("conditions");
        }

        public override void OnInspectorGUI()
        {
            serializedObject.Update();

            // 绘制除 conditions 之外的所有默认字段
            DrawPropertiesExcluding(serializedObject, "conditions");

            EditorGUILayout.Space(8);
            EditorGUILayout.LabelField("解锁条件（AND 全部满足）", EditorStyles.boldLabel);

            for (int i = 0; i < _conditionsProp.arraySize; i++)
            {
                var elemProp = _conditionsProp.GetArrayElementAtIndex(i);
                var condSO   = elemProp.objectReferenceValue as AchievementCondition;

                string typeName = condSO?.GetType().Name ?? "";
                string label    = condSO != null && _conditionLabels.TryGetValue(typeName, out var n)
                    ? $"{n}  [{condSO.name}]"
                    : (condSO != null ? $"{typeName}  [{condSO.name}]" : "（未指定条件 SO）");

                EditorGUILayout.BeginVertical(EditorStyles.helpBox);

                // 标题行
                EditorGUILayout.BeginHorizontal();
                EditorGUILayout.LabelField(label, EditorStyles.boldLabel);

                if (condSO != null && GUILayout.Button("↗", GUILayout.Width(24)))
                    EditorGUIUtility.PingObject(condSO);

                var prevColor = GUI.color;
                GUI.color = Color.red * 0.9f;
                if (GUILayout.Button("✕", GUILayout.Width(24)))
                {
                    GUI.color = prevColor;
                    // 先将引用置空再删除，避免删除保留引用的 Unity 行为
                    _conditionsProp.GetArrayElementAtIndex(i).objectReferenceValue = null;
                    _conditionsProp.DeleteArrayElementAtIndex(i);
                    serializedObject.ApplyModifiedProperties();
                    break;
                }
                GUI.color = prevColor;
                EditorGUILayout.EndHorizontal();

                // 内联展开 SO 字段（可编辑）
                if (condSO != null)
                {
                    var innerSO = new SerializedObject(condSO);
                    innerSO.Update();
                    var prop = innerSO.GetIterator();
                    prop.NextVisible(true); // 跳过 m_Script
                    while (prop.NextVisible(false))
                        EditorGUILayout.PropertyField(prop, true);
                    if (innerSO.ApplyModifiedProperties())
                        EditorUtility.SetDirty(condSO);
                }
                else
                {
                    EditorGUILayout.PropertyField(elemProp, GUIContent.none);
                }

                EditorGUILayout.EndVertical();
                EditorGUILayout.Space(2);
            }

            // 添加按钮
            EditorGUILayout.BeginHorizontal();
            if (GUILayout.Button("＋ 添加条件 SO 引用"))
                _conditionsProp.arraySize++;
            EditorGUILayout.EndHorizontal();

            serializedObject.ApplyModifiedProperties();
        }
    }
}