using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading.Tasks;
using POSV.Utils;
using POSV.Entity;
using POSV.Bean;
using POSV.MessageEvent;

namespace POSV.Component
{
    [ToolboxItem(true)]
    public partial class ViceParameter : AbstractParameter
    {

        /// <summary>
        /// 修改前的数据
        /// </summary>
        private Dictionary<string, string> _oldValue = new Dictionary<string, string>();

        /// <summary>
        /// 修改后的数据
        /// </summary>
        private Dictionary<string, string> _newValue = new Dictionary<string, string>();

        /// <summary>
        /// 是否初始化
        /// </summary>
        private bool _inited = false;

        private int[] _numArr = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0};
        public ViceParameter()
        {
            InitializeComponent();
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            if (this.DesignMode) return;

            this.BackColor = Color.Transparent;

            lunboIntervalCom.DataSource = (int[])_numArr.Clone();

            fullScreenWaitCom.DataSource = (int[])_numArr.Clone();

            //字体大小
            this.txtFontCom.DataSource = System.Enum.GetNames(typeof(SystemFont));
            this.txtFontCom.SelectedIndex = 0;
            //字体轮播速度
            this.txtSpeedCom.DataSource = System.Enum.GetNames(typeof(SpeedEnum));
            this.txtFontCom.SelectedIndex = 0;
            //字体显示位置
            this.txtShowPositionCom.DataSource = System.Enum.GetNames(typeof(ShowPositionEnum));
            this.txtShowPositionCom.SelectedIndex = 0;

            //图片显示方式
            this.imageSizeModeCom.DataSource = System.Enum.GetNames(typeof(ImageSizeModeEnum));
            this.imageSizeModeCom.SelectedIndex = 0;

            this.InitUi();

        }

        /// <summary>
        /// 初始化界面
        /// </summary>
        private void InitUi()
        {
            //界面加载开始
            this._inited = false;

            Task.Factory.StartNew(() => {
                Dictionary<string, string> data = null;

                //获取品类分组下的全部参数
                using (var db = Global.Instance.OpenDataBase)
                {
                    data = db.Dictionary<string, string>(string.Format(SqlConstant.ConfigQueryByGroupToDictionary, ConfigConstant.DEVICE_GROUP));
                }

                //将新增加或者变更的参数重新更新到数据库
                var defaultValue = ConfigConstant.DeviceGroupDefaultValue();

                //数据库有配置参数
                if (data != null)
                {
                    var diff = defaultValue.Where(kvp => !data.ContainsKey(kvp.Key)).ToDictionary(kvp => kvp.Key, kvp => kvp.Value);

                    if (diff != null && diff.Keys.Count > 0)
                    {
                        var list = new List<Config>();
                        foreach (var v in diff)
                        {
                            var config = new Config();
                            config.Id = IdWorkerUtils.Instance.NextId();
                            config.Group = ConfigConstant.DEVICE_GROUP;
                            config.TenantId = Global.Instance.Authc.TenantId;
                            config.Keys = v.Key;
                            config.Values = v.Value;

                            list.Add(config);
                        }
                        //如果数据表中没有配置group相关的信息，更新差异
                        this.SaveChanged(list);

                        //将差异合并到data，避免再次访问数据库
                        data = data.Concat(diff).ToDictionary(x => x.Key, x => x.Value);
                    }
                }
                else
                {
                    //加载系统默认参数
                    data = defaultValue;

                    var list = new List<Config>();
                    foreach (var v in defaultValue)
                    {
                        var config = new Config();
                        config.Id = IdWorkerUtils.Instance.NextId();
                        config.Group = ConfigConstant.DEVICE_GROUP;
                        config.TenantId = Global.Instance.Authc.TenantId;
                        config.Keys = v.Key;
                        config.Values = v.Value;

                        list.Add(config);
                    }

                    //如果数据表中没有配置group相关的信息，保存
                    this.SaveChanged(list);
                }

                return data;
            }).ContinueWith(task =>
            {
                if (task.IsFaulted)
                {
                    LOGGER.Error(task.Exception.GetBaseException(), "加载副屏参数设置异常");
                }
                else
                {
                    this.Invoke(new Action(() =>
                    {
                        BindUi(task.Result);
                    }));
                }
            });
        }

        private void BindUi(Dictionary<string, string> data)
        {
            //变更前的数据单独存储
            _oldValue.Clear();
            _oldValue = ObjectUtils.Copy<Dictionary<string, string>>(data);
            //清理历史变更数据
            _newValue.Clear();

            //是否启用副屏
            this.enableViceCom.Value = data[ConfigConstant.DEVICE_VICE_ENABLE] == "1";

            //副屏参数
            var paramStr = data[ConfigConstant.DEVICE_VICE_PARAM];
            if (!string.IsNullOrEmpty(paramStr))
            {
                var param = JsonUtils.Deserialize<ViceSettingParam>(paramStr);
                //无操作，多长时间开始全屏轮播
                this.fullScreenWaitCom.Text = param.PicLunboFullScreenSec.ToString();
                //轮播时间间隔
                this.lunboIntervalCom.Text = param.PicLunboInterval.ToString();
                //图片显示方式
                this.imageSizeModeCom.Text = param.PicSizeMode.ToString();

                //文本轮播速度
                this.txtSpeedCom.Text = param.TxtSpeed.ToString();
                //文本颜色
                this.txtColorCom.Color = ColorTranslator.FromHtml(param.TxtColor);
                //文本字体
                this.txtFontCom.Text = param.TxtFont.ToString();
                //文本背景颜色
                this.txtBgColorCom.Color = ColorTranslator.FromHtml(param.TxtBgColor);
                //文本显示位置
                this.txtShowPositionCom.Text = param.TxtShowPosition.ToString();
                
                //是否显示商品图片
                this.chkShowProductImage.Checked = param.ShowProductImage;

            }
            

            //界面加载完成
            this._inited = true;
        }

        public List<Config> NewChanged()
        {
            var result = new List<Config>();
            //尚未初始化完成
            if (!this._inited) return result;

            //是否启用副屏
            var enableVice = this.enableViceCom.Value ? "1" : "0";
            bool changed = !(this._oldValue.ContainsKey(ConfigConstant.DEVICE_VICE_ENABLE) && this._oldValue[ConfigConstant.DEVICE_VICE_ENABLE].Equals(enableVice));
            if (changed)
            {
                this._newValue[ConfigConstant.DEVICE_VICE_ENABLE] = enableVice;
            }

            ViceSettingParam param = new ViceSettingParam();
            //无操作，多长时间开始全屏轮播
            param.PicLunboFullScreenSec = StringUtils.GetInt(this.fullScreenWaitCom.Text);
            //轮播时间间隔
            param.PicLunboInterval = StringUtils.GetInt(this.lunboIntervalCom.Text);
            //图片显示方式
            param.PicSizeMode = (ImageSizeModeEnum)Enum.Parse(typeof(ImageSizeModeEnum), this.imageSizeModeCom.Text);

            //文本轮播速度
            param.TxtSpeed = (SpeedEnum)Enum.Parse(typeof(SpeedEnum), this.txtSpeedCom.Text);
            //文本颜色
            param.TxtColor = ColorTranslator.ToHtml(this.txtColorCom.Color);
            //文本字体
            param.TxtFont = (SystemFont)Enum.Parse(typeof(SystemFont), this.txtFontCom.Text);
            //文本背景颜色
            param.TxtBgColor = ColorTranslator.ToHtml(this.txtBgColorCom.Color);
            //文本显示位置
            param.TxtShowPosition = (ShowPositionEnum)Enum.Parse(typeof(ShowPositionEnum), this.txtShowPositionCom.Text);

            //显示商品图片
            param.ShowProductImage = this.chkShowProductImage.Checked;

            var p = JsonUtils.Serialize(param);
            changed = !(this._oldValue.ContainsKey(ConfigConstant.DEVICE_VICE_PARAM) && this._oldValue[ConfigConstant.DEVICE_VICE_PARAM].Equals(p));
            if (changed)
            {
                this._newValue[ConfigConstant.DEVICE_VICE_PARAM] = p;
            }

            //转换为Config对象，便于存储
            foreach (var v in this._newValue)
            {
                var config = new Config();

                config.Id = IdWorkerUtils.Instance.NextId();
                config.Group = ConfigConstant.DEVICE_GROUP;
                config.TenantId = Global.Instance.Authc.TenantId;
                config.Keys = v.Key;
                config.Values = v.Value;

                result.Add(config);
            }

            return result;
        }

        public Tuple<bool, string> SaveChanged(List<Config> data)
        {
            bool isSuccess = true;
            string message = "参数更新成功";
            try
            {
                using (var db = Global.Instance.OpenDataBase)
                {
                    using (var trans = db.GetTransaction())
                    {
                        foreach (var config in data)
                        {
                            db.Save(config);
                        }
                        trans.Complete();
                    }
                }
            }
            catch (Exception ex)
            {
                isSuccess = false;
                message = "参数更新异常";

                LOGGER.Error(ex, message);
            }
            finally
            {
                if (isSuccess)
                {
                    //新修改后的参数应用后，重置OldValue，避免用户在没有切换Tab情况下，直接修改当前Tab内容

                    this._newValue.Clear();

                    //更新控件UI
                    Global.Instance.ReloadConfig(ConfigConstant.DEVICE_GROUP);

                    //通知更新
                    MsgEvent.Send(Constant.VICE_CHANGED_NOTIFY, null);

                }
            }
            return new Tuple<bool, string>(isSuccess, message);
        }
    }
}