using Newtonsoft.Json.Linq;
using System.IO;
using System.Text.RegularExpressions;

namespace H5MotaUpdate.ViewModels
{
    internal static class StringUtils
    {
        /// <summary>
        /// 从指定路径的.js文件中提取JObject文件
        /// </summary>
        public static JObject getValidJson(string path)
        {
            try
            {
                string jsContent = File.ReadAllText(path);
                string jsonContent;

                int start = jsContent.IndexOf("{");
                int end = jsContent.LastIndexOf("}") + 1;
                if (end != -1)
                {
                    jsonContent = jsContent.Substring(start, end - start);
                }
                else
                {
                    jsonContent = jsContent.Substring(start);
                }
                JObject jsonObject = JObject.Parse(jsonContent);
                return jsonObject;
            }
            catch (Exception e)
            {
                ErrorLogger.LogError("从" + path + "中读取JSON时出错:" + $"{e.Message}", "red");
                throw;
            }
        }

        /// <summary>
        /// 对于字符串str，找到${...}内部的内容，将其中的oldWord替换为newWord
        /// </summary>
        public static string ReplaceInBetweenCurlyBraces(string str, string oldWord, string newWord)
        {
            // 定义正则表达式模式，匹配 ${...} 中的内容  
            string pattern = @"\$\{([^}]+)\}";

            // 使用 Regex.Replace 方法进行替换  
            string replacedStr = Regex.Replace(str, pattern, match =>
            {
                // 获取匹配的内容，去掉 ${ 和 }  
                string content = match.Groups[1].Value;
                // 在匹配的内容中替换 oldWord 为 newWord  
                string modifiedContent = content.Replace(oldWord, newWord);
                // 返回替换后的完整匹配字符串，包含 ${ 和 }  
                return "${" + modifiedContent + "}";
            });

            return replacedStr;
        }

        /// <summary>
        /// 输入要加减的变量名varName，增减值value，符号+=或-=或=，返回一个执行该事件的JSON
        /// </summary>
        public static JObject getAddValueJson(string varName, string value, string o)
        {
            JObject adder = new JObject();
            adder.Add(new JProperty("type", "setValue"));
            adder.Add(new JProperty("name", varName));
            if (o != "=") adder.Add(new JProperty("operator", o));
            adder.Add(new JProperty("value", value));
            return adder;
        }

        /// <summary>
        /// 输入effect语句，返回一个包含所有事件的数组
        /// </summary>
        /// 参考： events.js/doEffect
        public static JArray doEffect(string effects)
        {
            JArray newEffectsArray = new JArray();
            string[] effectArr = effects.Split([';']);
            foreach (string effect in effectArr)
            {
                string[] arr = effect.Split("+=");
                JObject currEffectJson = getAddValueJson(arr[0], arr[1], "+=");
                newEffectsArray.Add(currEffectJson);
            }
            return newEffectsArray;
        }

        public static string ReplaceOldNames(string input, Version version)
        {
            input = input.Replace("Jewel", "Gem");
            input = input.Replace("ratio", "core.status.thisMap.ratio");
            return input;
        }

        /// <summary>
        /// 合并两个JObject，jobject2中的键值对覆盖jobject1的键值对（不论原先是否存在），返回jobject1。
        /// </summary>
        /// <param name="targetJObject">要合并到并返回的对象。</param>  
        /// <param name="sourceJObject">提供要合并内容的对象。</param>  
        /// <returns>合并后的targetJObject。</returns>
        public static JObject MergeJObjects(JObject targetJObject, JObject sourceJObject)
        {
            foreach (JProperty prop in sourceJObject.Properties())
            {
                string key = prop.Name;
                targetJObject[key] = prop.Value;
            }
            return targetJObject;
        }

        public static JArray CreateMatrix(int width, int height)
        {
            if (width <= 0 || height <= 0)
            {
                throw new ArgumentException("Width and height must be greater than 0.");
            }

            JArray matrix = new JArray();

            for (int i = 0; i < height; i++)
            {
                JArray row = new JArray();
                for (int j = 0; j < width; j++)
                {
                    row.Add(0);
                }
                matrix.Add(row);
            }

            return matrix;
        }

        /// <summary>
        /// 读取塔的地图尺寸，默认值为13
        /// <summary>
        public static (int, int) ReadMapWidth(string filePath)
        {
            /*
             * 直到2.9为止，地图默认尺寸在libs/core.js中 this.__SIZE__ = 13 
             * 老版本写法如下：this.bigmap = {
             * width: 13, // map width and height
             * height: 13,
             * }
             */
            int width, height;
            try
            {
                string fileContent = File.ReadAllText(filePath);

                // gpt写的，我也看不懂，就当它们是对的，有错再说
                string widthPattern = @"this\._WIDTH_\s*=\s*(\d+);",
                    heightPattern = @"this\._HEIGHT_\s*=\s*(\d+);",
                    sizePattern = @"this\.__SIZE__\s*=\s*(\d+);",
                    oldSizePattern = @"this\.bigmap\s*=\s*\{[^}]*width:\s*(\d+)[^}]*height:\s*(\d+)[^}]*\}";

                Match widthMatch = Regex.Match(fileContent, widthPattern),
                    heightMatch = Regex.Match(fileContent, heightPattern);
                if (widthMatch.Success && heightMatch.Success)
                {
                    width = int.Parse(widthMatch.Groups[1].Value);
                    height = int.Parse(heightMatch.Groups[1].Value);
                }
                else
                {
                    Match sizeMatch = Regex.Match(fileContent, sizePattern);
                    if (sizeMatch.Success)
                    {
                        width = int.Parse(sizeMatch.Groups[1].Value);
                        height = width;
                    }
                    else
                    {
                        Match oldWidthMatch = Regex.Match(fileContent, oldSizePattern);
                        if (oldWidthMatch.Success)
                        {
                            width = int.Parse(oldWidthMatch.Groups[1].Value);
                            height = int.Parse(oldWidthMatch.Groups[2].Value);
                        }
                        else
                        {
                            width = 13;
                            height = 13;
                        }
                    }
                }
            }
            catch
            {
                width = 13;
                height = 13;
                ErrorLogger.LogError("错误：未能从源文件夹的libs/core.js中读取到地图长宽数据", "red");
            }
            return (width, height);
        }


        /// <summary>
        /// 将塔的地图尺寸写入libs/core.js
        /// <summary>
        public static void WriteMapWidth(string destFilePath, int width, int height)
        {
            try
            {

                string tempFilePath = destFilePath + ".tmp";
                string fileContent = File.ReadAllText(destFilePath);
                fileContent = Regex.Replace(fileContent, @"this\._WIDTH_\s*=\s*\d+;", $"this._WIDTH_ = {width};");
                fileContent = Regex.Replace(fileContent, @"this\._HEIGHT_\s*=\s*\d+;", $"this._HEIGHT_ = {height};");
                File.WriteAllText(tempFilePath, fileContent);
                File.Delete(destFilePath);
                File.Move(tempFilePath, destFilePath);
            }
            catch
            {
                ErrorLogger.LogError("错误：修改目标文件夹libs/core.js中的地图长宽数据失败", "red");
            }
        }
    }
}