using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.Json;

namespace DH.Commons.Base
{
    public class VisualLocalization
    {
        // 配置属性
        public string CameraName { get; set; }
        public string ModelPath { get; set; }
        public string ImgPath { get; set; }
        public string Threshold { get; set; }
        public string Direction { get; set; }
        public string Speed { get; set; }

        public string MSpeed { get; set; }

        // 配置文件路径
        private const string ConfigFile = "VisualConfigs.json";
        private static readonly object _fileLock = new object();

        /// <summary>
        /// 保存当前配置（存在则更新，不存在则新增）
        /// </summary>
        public void Save()
        {
            lock (_fileLock)
            {
                var list = LoadAll();
                var existing = list.FirstOrDefault(c => c.CameraName == CameraName);

                if (existing != null)
                {
                    // 更新现有配置
                    existing.ModelPath = ModelPath;
                    existing.ImgPath = ImgPath;
                    existing.Threshold = Threshold;
                    existing.Direction = Direction;
                    existing.Speed = Speed;
                    existing.MSpeed = MSpeed;
                }
                else
                {
                    list.Add(this);
                }

                SaveAll(list);
            }
        }

        /// <summary>
        /// 获取全部配置列表
        /// </summary>
        public static List<VisualLocalization> LoadAll()
        {
            lock (_fileLock)
            {
                if (!File.Exists(ConfigFile)) return new List<VisualLocalization>();

                var json = File.ReadAllText(ConfigFile);
                return JsonSerializer.Deserialize<List<VisualLocalization>>(json)
                    ?? new List<VisualLocalization>();
            }
        }

        private static void SaveAll(List<VisualLocalization> list)
        {
            var options = new JsonSerializerOptions
            {
                WriteIndented = true,
                IgnoreNullValues = true
            };

            File.WriteAllText(ConfigFile, JsonSerializer.Serialize(list, options));
        }
    }
}