using DevExpress.Xpo;
using Ips.Library.DxpLib;
using Ips.Spd.SysSettings;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;

namespace Ips.Sps.SysSettings
{
    public class SysSettingManager
    {
        public static readonly SysSettingManager It = new SysSettingManager();

        private SysSettingManager()
        {
            LoadSettings();
        }

        public SiteSettingModel SiteSetting { get; set; } = new SiteSettingModel();

        public PosSettingModel PosSetting { get; set; } = new PosSettingModel();

        public List<AdcSettingModel> AdcSettings { get; set; } = new List<AdcSettingModel>()
        {
            new AdcSettingModel()
        };

        public void LoadSettings()
        {
            Session session = new Session();
            var settingList = session.Query<SysSetting>().ToList();
            foreach (var item in settingList)
            {
                try
                {
                    switch (item.Name)
                    {
                        case nameof(SiteSetting):
                            SiteSetting = JsonSerializer.Deserialize<SiteSettingModel>(item.Value);
                            break;
                        case nameof(PosSetting):
                            PosSetting = JsonSerializer.Deserialize<PosSettingModel>(item.Value);
                            break;
                        case nameof(AdcSettings):
                            AdcSettings = JsonSerializer.Deserialize<List<AdcSettingModel>>(item.Value);
                            break;
                    }
                }
                catch (Exception ex)
                {
                    MsgHelper.ShowError($"加载配置出错，错误消息：{ex.Message}");
                }
            }
        }

        public void SaveSettings()
        {
            using (UnitOfWork uow = new UnitOfWork())
            {
                var settingList = uow.Query<SysSetting>().ToList();

                SaveSettingItem(uow, settingList, nameof(SiteSetting), SiteSetting);
                SaveSettingItem(uow, settingList, nameof(PosSetting), PosSetting);
                SaveSettingItem(uow, settingList, nameof(AdcSettings), AdcSettings);
                uow.CommitChanges();
            }
        }

        protected void SaveSettingItem(UnitOfWork uow, List<SysSetting> settingList, string name, object value)
        {
            var settingVal = JsonSerializer.Serialize(value);
            var setting = settingList.FirstOrDefault(m => m.Name == name) ?? new SysSetting(uow, name, "");
            setting.Value = settingVal;
        }
    }
}