using System.Globalization;
using System.Security.Cryptography;
using System.Text;
using System.Windows.Input;
using Newtonsoft.Json;
using SharpDX;
using SparkClient.Views.UserControl.ViewportData.Entity;
using SparkClient.Views.UserControl.ViewportData.Enum;

namespace SparkClient.Views.UserControl.ViewportData.Helper;

public class CommonHelper
{
    
    public static bool IsTextNumeric(string text)
    {
        return int.TryParse(text, out _); // 只允许数字输入
    }
    
    public static  bool IsKeyNumeric(Key key)
    {
        // 判断按键是否是数字键
        return (key >= Key.D0 && key <= Key.D9) || (key >= Key.NumPad0 && key <= Key.NumPad9);
    }
    
    public static Viewport3DTriangleEntity CreateByJsonStr(string json)
    {
        // 解析 JSON 数据
        var jsonObject = JsonConvert.DeserializeObject<dynamic>(json);
        if (jsonObject == null) throw new ArgumentException("Json object is null");
        // 提取坐标
        var coords = jsonObject.coords.ToObject<dynamic[]>();
        if (coords.Length < 3)
        {
            throw new ArgumentException("The input JSON does not have enough points to form a triangle.");
        }
        
        // 创建三角形顶点
        var point1 = new Vector3((float)coords[0].x, (float)coords[0].z, (float)coords[0].y);
        var point2 = new Vector3((float)coords[1].x, (float)coords[1].z, (float)coords[1].y);
        var point3 = new Vector3((float)coords[2].x, (float)coords[2].z, (float)coords[2].y);
        // var point1 = new Vector3((float)coords[0].x, (float)coords[0].y, (float)coords[0].z);
        // var point2 = new Vector3((float)coords[1].x, (float)coords[1].y, (float)coords[1].z);
        // var point3 = new Vector3((float)coords[2].x, (float)coords[2].y, (float)coords[2].z);
        
        // 提取 PlaneCode 和 PlaneType
        string planeCode = jsonObject.facet_id ?? (string)jsonObject.facet_id;
        PlaneType planeType = (PlaneType)(int)jsonObject.facet_type;
        
        // 生成 TriangleCode
        var triangleCode = GenerateTriangleCode(point1, point2, point3);

        // 创建并返回实体对象
        return new Viewport3DTriangleEntity
        {
            Point1 = point1,
            Point2 = point2,
            Point3 = point3,
            TriangleCode = triangleCode,
            PlaneCode = planeCode,
            PlaneType = planeType
        };
       
    }
    
    /// <summary>
    /// 生成三角形签名
    /// </summary>
    /// <param name="p1"></param>
    /// <param name="p2"></param>
    /// <param name="p3"></param>
    /// <returns></returns>
    public static string GenerateTriangleCode(Vector3 p1, Vector3 p2, Vector3 p3)
    {
        var concatenated = $"{p1.X},{p1.Y},{p1.Z};{p2.X},{p2.Y},{p2.Z};{p3.X},{p3.Y},{p3.Z}";
        return GenerateMd5Hash(concatenated);
    }
    /// <summary>
    /// 文本转32大写MD5
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    private static string GenerateMd5Hash(string input)
    {
        using (var md5 = MD5.Create())
        {
            var inputBytes = Encoding.UTF8.GetBytes(input);
            var hashBytes = md5.ComputeHash(inputBytes);
            return string.Concat(hashBytes.Select(b => b.ToString("X2")));
        }
    }
    
    public static string Color4ToHex(Color4 color)
    {
        int a = (int)(color.Alpha * 255);
        int r = (int)(color.Red * 255);
        int g = (int)(color.Green * 255);
        int b = (int)(color.Blue * 255);

        // 返回 Hex 字符串
        return $"#{a:X2}{r:X2}{g:X2}{b:X2}";
    }
    
    public static Color4 HexToColor4(string hex)
    {
        // 移除可能的前导 '#'
        hex = hex.TrimStart('#');

        // 根据长度判断是 ARGB 还是 RGB
        if (hex.Length == 8)
        {
            // ARGB 格式：AARRGGBB
            return ConvertArgb(hex);
        }
        else if (hex.Length == 6)
        {
            // RGB 格式：RRGGBB，默认 Alpha 为 255
            return ConvertRgb(hex);
        }
        else
        {
            throw new ArgumentException("Hex string must be in the format #AARRGGBB or #RRGGBB.");
        }
    }

    private static Color4 ConvertArgb(string hex)
    {
        // 解析 ARGB 组件
        byte a = byte.Parse(hex.Substring(0, 2), NumberStyles.HexNumber);
        byte r = byte.Parse(hex.Substring(2, 2), NumberStyles.HexNumber);
        byte g = byte.Parse(hex.Substring(4, 2), NumberStyles.HexNumber);
        byte b = byte.Parse(hex.Substring(6, 2), NumberStyles.HexNumber);

        // 创建 Color4 对象，RGBA 的范围是 0 到 1，因此除以 255
        return new Color4(r / 255f, g / 255f, b / 255f, a / 255f);
    }

    private static Color4 ConvertRgb(string hex)
    {
        // 解析 RGB 组件，Alpha 默认 255
        byte r = byte.Parse(hex.Substring(0, 2), NumberStyles.HexNumber);
        byte g = byte.Parse(hex.Substring(2, 2), NumberStyles.HexNumber);
        byte b = byte.Parse(hex.Substring(4, 2), NumberStyles.HexNumber);
        byte a = 255; // 默认 Alpha 为 255

        // 创建 Color4 对象，RGBA 的范围是 0 到 1，因此除以 255
        return new Color4(r / 255f, g / 255f, b / 255f, a / 255f);
    }
}