using System.Text;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace OMS.NET.Common
{
    public class Point
    {
        public double X { get; set; }
        public double Y { get; set; }
    }

    public class Util
    {
        public static readonly JsonSerializerOptions options = new()
        {
            ReadCommentHandling = JsonCommentHandling.Skip, //允许注释
            AllowTrailingCommas = true,//允许尾随逗号
            //PropertyNamingPolicy = new InstructNamingPolicy(), // 属性名为定制转换
            DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull, // 忽略 null 值
            WriteIndented = true, // 美化输出
            PropertyNameCaseInsensitive = true,//属性名忽略大小写
        };

        public static string DetailsToBase64(object obj)
        {
            string utf8 = JsonSerializer.Serialize(obj, options);
            return Convert.ToBase64String(Encoding.UTF8.GetBytes(utf8));
        }
        //===========================================================

        public static List<Point> PointsFromBase64(string base64)
        {
            string utf8 = Encoding.UTF8.GetString(Convert.FromBase64String(base64));
            return JsonSerializer.Deserialize<List<Point>>(utf8, options) ?? new List<Point>();
        }

        public static Point? PointFromBase64(string base64)
        {
            string utf8 = Encoding.UTF8.GetString(Convert.FromBase64String(base64));
            return JsonSerializer.Deserialize<Point>(utf8, options);
        }

        //===========================================================
        public static List<KeyValuePair<string, string>> DetailsFromBase64(string base64)
        {
            string utf8 = Encoding.UTF8.GetString(Convert.FromBase64String(base64));
            return JsonSerializer.Deserialize<List<KeyValuePair<string, string>>>(utf8, options) ?? new List<KeyValuePair<string, string>>();
        }

        public static Dictionary<string, string> MembersFromBase64(string base64)
        {
            string utf8 = Encoding.UTF8.GetString(Convert.FromBase64String(base64));
            return JsonSerializer.Deserialize<Dictionary<string, string>>(utf8, options) ?? new Dictionary<string, string>();
        }

        public static List<long> OrderMembersFromBase64(string base64)
        {
            //string utf8 = Encoding.UTF8.GetString(Convert.FromBase64String(base64));
            return JsonSerializer.Deserialize<List<long>>(base64, options) ?? new List<long>();
        }

        public static List<object> StructuresFromBase64(string base64)
        {
            string utf8 = Encoding.UTF8.GetString(Convert.FromBase64String(base64));
            return JsonSerializer.Deserialize<List<object>>(utf8, options) ?? new List<object>();
        }

    }
}