/********************************************************************
	文件: FrameCodeGenerate.cs
	作者: 梦语
	邮箱: 1982614048@qq.com
	创建时间: 2024/03/29 17:28:19
	最后修改: 梦语
	最后修改时间: 2024/04/04 16:34:30
	功能: 生成界面基类
*********************************************************************/

using System;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using UnityEditor;
using UnityEngine;
using System.Linq;

namespace Ether
{
    public class FrameCodeGenerate
    {
        public enum ComponentType
        {
            Image,
            Go,
            Btn,
            BtnEx,
            Text,
            SRContent,
            ScrollRect,
            Animator,
            Trans,
        }

        private static Dictionary<ComponentType, string> relationDic = new Dictionary<ComponentType, string>()
        {
            { ComponentType.Image, "Image" },
            { ComponentType.Go, "GameObject" },
            { ComponentType.Trans, "Transform" },
            { ComponentType.Btn, "Button" },
            { ComponentType.BtnEx, "ButtonEx" },
            { ComponentType.Text, "TextMeshProUGUI" },
            { ComponentType.SRContent, "ScrollContent" },
            { ComponentType.ScrollRect, "ScrollRect" },
            { ComponentType.Animator, "Animator" },
        };

        [MenuItem("Assets/生成FrameBase(=-=)", false, 19)]
        private static void CodeGenerate()
        {
            GameObject selectedPrefab = Selection.activeGameObject;
            if (selectedPrefab != null && PrefabUtility.IsPartOfAnyPrefab(selectedPrefab))
            {

                Transform[] childs = selectedPrefab.GetComponentsInChildren<Transform>(true);

                Dictionary<string, (string, List<ComponentType>)> componentDic = new Dictionary<string, (string, List<ComponentType>)>();

                foreach (Transform child in childs)
                {
                    if (child.name == selectedPrefab.name)
                    {
                        continue;
                    }
                    (string, List<ComponentType>) childComponent = CheckClildName(child);
                    string childPath = GetChildPath(child);
                    if (!componentDic.ContainsKey(childPath))
                    {
                        componentDic.Add(childPath, childComponent);
                    }
                }

                GenerateFrameBase(selectedPrefab, componentDic);
            }
            else
            {
                Debug.LogError("当前没有选中预制体！");
            }
        }

        [MenuItem("Assets/生成FrameBase(=-=)", true, 19)]
        public static bool CodeGenerateShow()
        {
            GameObject selectedPrefab = Selection.activeGameObject;
            if (selectedPrefab != null && PrefabUtility.IsPartOfAnyPrefab(selectedPrefab))
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 检查子物体的名字，获取对应的组件
        /// </summary>
        /// <param name="child"></param>
        /// <returns></returns>
        private static (string, List<ComponentType>) CheckClildName(Transform child)
        {
            string input = child.name;
            string pattern = @"<(.*?)>";

            List<ComponentType> childTypeList = new List<ComponentType>();
            string childName = input;

            MatchCollection matches = Regex.Matches(input, pattern);
            foreach (Match match in matches)
            {
                childName = childName.Replace(match.Groups[0].Value, "");
                string content = match.Groups[1].Value;

                if (Enum.TryParse(content, out ComponentType parsedEnum))
                {
                    if (Enum.IsDefined(typeof(ComponentType), parsedEnum))
                    {
                        childTypeList.Add(parsedEnum);
                    }
                }
            }

            return (childName, childTypeList);
        }

        /// <summary>
        /// 获取子物体的路径
        /// </summary>
        /// <param name="child"></param>
        /// <returns></returns>
        private static string GetChildPath(Transform child)
        {
            string path = child.name;
            Transform parent = child.parent;
            while (parent != null)
            {
                path = parent.name + "/" + path;
                parent = parent.parent;
            }

            //去除本身的路径
            int slashIndex = path.IndexOf("/");
            if (slashIndex >= 0)
            {
                path = path.Substring(slashIndex + 1);
            }

            return path;
        }

        private static string templeteFileName = Application.dataPath + $"/Ether/Editor/Frames/FrameTemplete.txt";

        /// <summary>
        /// 生成FrameBase
        /// </summary>
        /// <param name="componentDic"></param>
        private static void GenerateFrameBase(GameObject selectedPrefab, Dictionary<string, (string, List<ComponentType>)> componentDic)
        {
            string selectPath = AssetDatabase.GetAssetPath(selectedPrefab);
            string framePart = "Prefabs";

            int selectIndex = selectPath.IndexOf(framePart);
            string framePrefabPath = selectPath.Substring(selectIndex).Replace(".prefab", "");

            Debug.Log($"selectPath:{selectPath}");

            string frameTemplete = FileTools.ReadFile(templeteFileName);

            Debug.Log(frameTemplete);

            (string, string) generateComponentCode = GenerateComponentCodeStr(componentDic);

            string pattern = @"\$(.*?)\$";

            MatchCollection matches = Regex.Matches(frameTemplete, pattern);

            foreach (Match match in matches)
            {
                string property = match.Groups[0].Value; //带$的原字符串
                string content = match.Groups[1].Value; //仅两个$中的内容

                string replaceStr = "";

                switch (content)
                {
                    case "FrameBaseName":
                        replaceStr = $"{selectedPrefab.name}Base";
                        break;
                    case "PrefabPath":
                        replaceStr = framePrefabPath;
                        break;
                    case "PropertyList":
                        replaceStr = generateComponentCode.Item1;
                        break;
                    case "PropertyInitList":
                        replaceStr = generateComponentCode.Item2;
                        break;
                    default:
                        break;
                }

                //Debug.Log(content);

                frameTemplete = frameTemplete.Replace(property, replaceStr);
            }

            string basePath = Application.dataPath + $"/Scripts/AutoGenerated/FrameBase/{selectedPrefab.name}Base.cs";

            if (File.Exists(basePath)) File.Delete(basePath);

            FileTools.WriteFile(basePath, frameTemplete);

            AssetDatabase.Refresh();
            return;

        }

        private static (string, string) GenerateComponentCodeStr(Dictionary<string, (string, List<ComponentType>)> componentDic)
        {
            string define = "";
            string code = "";

            string name = "";
            foreach (var component in componentDic)
            {
                name = component.Value.Item1;

                foreach (var type in component.Value.Item2)
                {
                    string tempType;
                    if (relationDic.ContainsKey(type))
                    {
                        tempType = relationDic[type];
                    }
                    else
                    {
                        tempType = type.ToString();
                    }
                    define += $"protected {tempType} _{type}{name};\n\t\t";
                    code += GetCodeByComponentType(type, tempType, name, component.Key);
                }
            }

            return (define, code);
        }

        private static string GetCodeByComponentType(ComponentType type, string componentName, string name, string path)
        {
            string code = "";
            switch (type)
            {
                case ComponentType.Go:
                    code = $"_{type}{name} = GetChild(\"{path}\").gameObject;\n\t\t\t";
                    break;
                case ComponentType.Image:
                case ComponentType.Btn:
                case ComponentType.BtnEx:
                case ComponentType.Text:
                default:
                    code = $"_{type}{name} = GetComponent<{componentName}>(\"{path}\");\n\t\t\t";
                    break;
            }
            return code;
        }
    }
}