Cielonos/Assets/Scripts/MainGame/Base/FunctionalAnimation/Payloads/InvokePreloadFunction.cs

using System;
using System.Collections;
using System.Collections.Generic;
using Sirenix.OdinInspector;
using SLSUtilities.FunctionalAnimation;
using UnityEditor;
using UnityEngine;

namespace Cielonos.MainGame.FunctionalAnimation
{
    public partial class InvokePreloadFunction : FuncAnimPayloadBase
    {
        private bool HasCollection => parentData != null && parentData.parentCollection != null;

        public override string NameForInspector => $"Preload Function: {functionKey}";

        [InfoBox("此 Data 未连接到 FuncAnimDataCollection，无法获取函数列表。\n请在 FuncAnimData 的顶部进行连接。", InfoMessageType.Error, "@!this.HasCollection")]
        [PropertyOrder(-1)]
        [EnableIf("HasCollection")] // 只有连接了才能选
        [OnInspectorInit("RefreshParameterReference")] // 初始化时刷新参数引用
        [ValueDropdown("GetFunctionKeys")]
        [OnValueChanged("OnFunctionKeyChanged")]
        [InlineButton("RefreshParameterInputFields", "R")]
        public string functionKey;
        
        [HideLabel] // 隐藏字段名，让参数看起来像直接嵌入的
        [SerializeReference]
        [HideReferenceObjectPicker] // 隐藏类型选择器，强制由 Key 决定
        [InfoBox("请先选择一个函数。", InfoMessageType.Warning, "@this.parameters == null && !string.IsNullOrEmpty(this.functionKey)")]
        public CustomFunction.ParameterCollectionBase parameters;
        
        public override void Invoke()
        {
            if (runtimeFuncAnim == null || mute) return;
            
            runtimeFuncAnim.currentActionParams = this.parameters;
            
            if (!string.IsNullOrEmpty(functionKey) && 
                character.animationSc.registeredFunctions.TryGetValue(functionKey, out var func))
            {
                func.Invoke(runtimeFuncAnim);
            }
            else
            {
                Debug.LogWarning($"[InvokePreRegisteredFunction] 试图调用 '{functionKey}'，但该函数未在 AnimationSc 中注册。");
            }
        }
    }
    
    public partial class InvokePreloadFunction
    {
        private void RefreshParameterReference()
        {
            if (parentData == null || parameters == null || string.IsNullOrEmpty(functionKey)) return;
            
            if (!HasCollection) return;
            
            List<CustomFunction> functions = parentData.parentCollection.preloadFunctions;
            CustomFunction selectedFunc = functions.Find(func => func.functionName == functionKey);
            if (selectedFunc != null)
            {
                parameters.function = selectedFunc;
            }
        }
        
        private IEnumerable GetFunctionKeys()
        {
            if (!HasCollection) return null;
            
            List<CustomFunction> functions = parentData.parentCollection.preloadFunctions;
            if (functions == null || functions.Count == 0) return null;
            
            return functions.ConvertAll(func => func.functionName);
        }
        
        private void OnFunctionKeyChanged()
        {
            if (!HasCollection) return;
            
            CustomFunction selectedFunc = parentData.parentCollection.preloadFunctions.Find(func => func.functionName == functionKey);
            if (selectedFunc != null)
            {
                parameters = Activator.CreateInstance(selectedFunc.paramCollectionType) as CustomFunction.ParameterCollectionBase;
                if (parameters != null)
                {
                    parameters.function = selectedFunc;
                }
            }
            else
            {
                parameters = null;
            }
        }

        //如果collection中的参数类型发生了变化，或者之前的参数实例被重置了，这个方法可以用来刷新参数输入字段
        private void RefreshParameterInputFields()
        {
            if (!HasCollection) return;
            
            CustomFunction selectedFunc = parentData.parentCollection.preloadFunctions.Find(func => func.functionName == functionKey);
            if (selectedFunc != null)
            {
                Type currentParamType = parameters.GetType();
                Type newParamType = selectedFunc.paramCollectionType;
                var newParameters = Activator.CreateInstance(newParamType) as CustomFunction.ParameterCollectionBase;
                //如果collection中的参数类型和当前的有继承关系，尽可能保留相同的参数
                if (currentParamType.IsSubclassOf(newParamType) || newParamType.IsSubclassOf(currentParamType))
                { 
                    foreach (var field in currentParamType.GetFields())
                    {
                        var newField = newParamType.GetField(field.Name);
                        if (newField != null && newField.FieldType == field.FieldType)
                        {
                            newField.SetValue(newParameters, field.GetValue(parameters));
                        }
                    }
                }
                
                parameters = newParameters;
                
                if (parameters != null)
                {
                    parameters.function = selectedFunc;
                }
            }
            else
            {
                parameters = null;
            }
        }
    }
}