using Prism.Commands;
using Prism.Events;
using ProjectManagementSystem.Common.Config;
using ProjectManagementSystem.Common.Function;
using ProjectManagementSystem.Common.Models;
using ProjectManagementSystem.Language;
using ProjectManagementSystemView.Infrastructure;
using ProjectManagementSystemView.Infrastructure.Extensions;
using PropertyChanged;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ProjectManagementSystemView.ViewModels
{
    [AddINotifyPropertyChangedInterface]
    public class Wms2DViewModel : WmsQueryViewModel
    {
        private int sWidth;
        private int sHeight;
        private double multipleX;
        private double multipleY;
        private double offsetX;
        private double offsetY;

        public double GridHeight { get; set; }
        public double GridWidth { get; set; }

        public double Scale { get; set; }
        public double TranslateX { get; set; }
        public double TranslateY { get; set; }

        public DelegateCommand ResetLayoutCommand { get; private set; }
        public DelegateCommand SaveLayoutCommand { get; private set; }


        public Wms2DViewModel(IDialogHostService dialogService, IEventAggregator eventAggregator) : base(dialogService, eventAggregator)
        {
            sWidth = AppSetting.TryGetValue<int>("StationUIWidth");
            sHeight = AppSetting.TryGetValue<int>("StationUIHeight");

            Scale = AppSetting.TryGetValue<double>(nameof(Scale));
            TranslateX = AppSetting.TryGetValue<double>(nameof(TranslateX));
            TranslateY = AppSetting.TryGetValue<double>(nameof(TranslateY));
            Scale = Scale <= 0 ? 1 : Scale;

            ResetLayoutCommand = new DelegateCommand(ResetLayout);
            SaveLayoutCommand = new DelegateCommand(SaveLayout);
        }

        protected override void UpdateVmDatas(List<LocationPropertyDto> dataList)
        {
            var buttonPropertyDict = ExcelConfig.Instance.ButtonPropertyDict;
            var routeConfifDict = ExcelConfig.Instance.RouteConfigDictionary;

            VmDatas.Update(dataList, (s, v) => s.LocationCode == v.LocationCode,
                    (s, v) =>
                    {
                        if (buttonPropertyDict.TryGetValue(v.LocationCode, out CButton cButton))
                        {
                            if (v.X == 0 && v.Y == 0)
                            {
                                v.X = cButton.LocationX;
                                v.Y = cButton.LocationY;
                            }
                        }
                        else
                        {
                            if (routeConfifDict.TryGetValue(v.LocationCode, out RouteConfig config))
                            {
                                v.X = (Math.Abs(config.X + offsetX) * multipleX) + 5;
                                v.Y = (Math.Abs(config.Y + offsetY) * multipleY) + 5;

                                var cb = new CButton()
                                {
                                    ButtonName = v.LocationCode,
                                    LocationX = v.X,
                                    LocationY = v.Y
                                };
                                buttonPropertyDict.Add(v.LocationCode, cb);
                            }
                        }

                        v.XLength = sWidth;
                        v.YLength = sHeight;
                    });
        }

        private void GetLocationXY()
        {
            if (GridWidth == 0 && GridHeight == 0) return;

            var configList = string.IsNullOrEmpty(WareHouseCode) ?
                ExcelConfig.Instance.RouteConfigList.Where(d => !string.IsNullOrEmpty(d.Area)).ToList() :
                ExcelConfig.Instance.RouteConfigList.Where(d => d.Area == WareHouseCode).ToList();

            if (configList.Count == 0) return;

            double MinX = configList.Min(d => d.X);
            double MaxX = configList.Max(d => d.X);

            double MinY = configList.Min(d => d.Y);
            double MaxY = configList.Max(d => d.Y);

            if (MinX == 0 && MaxX == 0 && MinY == 0 && MaxY == 0)
            {
                return;
            }

            double DistanceX = Math.Abs(MaxX - MinX);
            double DistanceY = Math.Abs(MaxY - MinY);

            if (DistanceX < GridWidth) DistanceX = GridWidth * 10;
            if (DistanceY < GridHeight) DistanceY = GridHeight * 10;

            multipleX = GridWidth * 0.85 / DistanceX;
            multipleY = GridHeight * 0.85 / DistanceY;

            multipleX = multipleX < 0.03 ? 0.03 : multipleX;
            multipleY = multipleY < 0.03 ? 0.03 : multipleY;

            offsetX = 0 - MinX;
            offsetY = 0 - MaxY;
        }


        protected override void Loaded()
        {
            GetLocationXY();
        }
        protected override void ReloadLayout()
        {
            GetLocationXY();
            VmDatas.Clear();
        }
        private void ResetLayout()
        {
            GetLocationXY();

            var buttonPropertyDict = ExcelConfig.Instance.ButtonPropertyDict;
            for (int i = 0; i < VmDatas.Count; i++)
            {
                string locationCode = VmDatas[i].LocationCode;
                if (!string.IsNullOrEmpty(locationCode))
                {
                    buttonPropertyDict.Remove(locationCode);
                }
            }

            var config = string.IsNullOrEmpty(WareHouseCode) ?
                ExcelConfig.Instance.RouteConfigList.FirstOrDefault(d => !string.IsNullOrEmpty(d.Area)) :
                ExcelConfig.Instance.RouteConfigList.FirstOrDefault(d => d.Area == WareHouseCode);

            Scale = 1;
            TranslateX = config == null ? 0 : 0 - (Math.Abs(config.X + offsetX) * multipleX);
            TranslateY = config == null ? 0 : 0 - (Math.Abs(config.Y + offsetY) * multipleY);

            VmDatas.Clear();
        }
        private void SaveLayout()
        {
            var buttonPropertyDict = ExcelConfig.Instance.ButtonPropertyDict;

            foreach (var v in VmDatas)
            {
                if (buttonPropertyDict.TryGetValue(v.LocationCode, out CButton cButton))
                {
                    cButton.LocationX = v.X;
                    cButton.LocationY = v.Y;
                }
            }

            if (!ExcelConfig.Instance.SaveButtonPropertyList())
            {
                HandyControl.Controls.Growl.Error(Langs.SaveLayoutFailed);
            }

            var dict = new Dictionary<string, string>();
            dict.Add(nameof(Scale), Scale.ToString());
            dict.Add(nameof(TranslateX), TranslateX.ToString());
            dict.Add(nameof(TranslateY), TranslateY.ToString());

            if (!AppSetting.TrySaveValues(dict))
            {
                HandyControl.Controls.Growl.Error($"AppSetting:{Langs.SaveLayoutFailed}");
            }

            VmDatas.Clear();
        }
    }
}