using Prism.Commands;
using Prism.Events;
using Prism.Ioc;
using Prism.Services.Dialogs;
using SWS.CAD.Event;
using SWS.Commons;
using SWS.Model;
using SWS.Service;
using SWS.WPF.ViewModels;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Windows;
using System.Windows.Input;
using Unity;
using DelegateCommand = Prism.Commands.DelegateCommand;

namespace SWS.CAD.ViewModels
{
    public class DialogParallelCableViewModel : DialogBase, IDialogAware
    {
        #region 按钮事件

        /// <summary>
        /// 新增位号
        /// </summary>
        public ICommand Command_Add { get; set; }
        /// <summary>
        /// 删除位号
        /// </summary>
        public ICommand Command_Delete { get; set; }
        /// <summary>
        /// 生成
        /// </summary>
        public ICommand Command_Build { get; set; }
        #endregion

        #region 数据绑定

        private ObservableCollection<KeyValueModel> _listTagNumber;
        /// <summary>
        /// 位号列表
        /// </summary>
        public ObservableCollection<KeyValueModel> listTagNumber
        {
            get { return this._listTagNumber; }
            set
            {
                if (value != this._listTagNumber)
                {
                    this._listTagNumber = value;
                    RaisePropertyChanged(nameof(listTagNumber));
                }
            }
        }
        private KeyValueModel _selectTag;
        public KeyValueModel selectTag
        {
            get { return this._selectTag; }
            set
            {
                if (value != this._selectTag)
                {
                    this._selectTag = value;
                    RaisePropertyChanged(nameof(selectTag));
                }
            }
        }

        private string _strParallelCable;
        public string StrParallelCable
        {
            get { return this._strParallelCable; }
            set
            {
                if (value != this._strParallelCable)
                {
                    this._strParallelCable = value;
                    RaisePropertyChanged(nameof(StrParallelCable));
                }
            }
        }
        #endregion
        /// <summary>
        /// 位号
        /// </summary>
        private string tagNumber;
        /// <summary>
        /// 位号数字前的字符串
        /// </summary>
        private string preTagNumber;
        /// <summary>
        /// 位号默认的数字
        /// </summary>
        private int num = 0;
        /// <summary>
        /// 图元类型
        /// </summary>
        private ec_objecttype objectType;
        /// <summary>
        /// 平行电缆属性
        /// </summary>
        private propertyModel proModel1;
        /// <summary>
        /// 平行电缆位号属性
        /// </summary>
        private propertyModel proModel2;
        EnginedataService _enginedataService;
        ObjectTypeService _objectTypeService;
        IEventAggregator eventAggregator;
        public DialogParallelCableViewModel()
        {
            
            _enginedataService = GlobalObject.container.Resolve<EnginedataService>();
            _objectTypeService = GlobalObject.container.Resolve<ObjectTypeService>();
            eventAggregator = GlobalObject.container.Resolve<IEventAggregator>();
            listTagNumber = new ObservableCollection<KeyValueModel>();
            Command_Add = new DelegateCommand(onAddTagNumber);
            Command_Delete = new DelegateCommand(onDeleteTagNumber);
            Command_Build = new DelegateCommand(onBuild);
        }
        #region dialog

        public string Title => "";

        public event Action<IDialogResult> RequestClose;

        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {

        }


        public void OnDialogOpened(IDialogParameters parameters)
        {
            objectType = parameters.GetValue<ec_objecttype>(GlobalObject.dialogPar.info.ToString());
            proModel1 = parameters.GetValue<propertyModel>(GlobalObject.dialogPar.para1.ToString());
            proModel2 = parameters.GetValue<propertyModel>(GlobalObject.dialogPar.para2.ToString());
            tagNumber = objectType.tags[0].TagNumber;
            title = $"平行电缆管理 - {tagNumber}";
            GlobalObject.GetLastNumber(tagNumber, ref preTagNumber, ref num);
            StrParallelCable = proModel2.PropertyValue;
            if (!string.IsNullOrEmpty(proModel1.PropertyValue))
            {
                var listCable = proModel1.PropertyValue.Split(',');
                for (int i = 0; i < listCable.Length; i++)
                {
                    listTagNumber.Add(new KeyValueModel()
                    {
                        Key = (i + 1).ToString(),
                         Value= listCable[i]
                    });
                }
                GlobalObject.GetLastNumber(listCable.Last(), ref preTagNumber, ref num);
            }
        }

        #endregion

        #region 确定 
        public override void ExecuteOKCommandAsync(object para)
        {
            string strValue1=string.Empty;
            string strValue2 = string.Empty;
            if (listTagNumber.Any())
            {
                if (string.IsNullOrEmpty(StrParallelCable))
                { MessageBox.Show("平行电缆位号不能为空！"); return; }
                strValue2 = StrParallelCable;
                strValue1=string.Join(",", listTagNumber.Select(a=>a.Value).ToList());
            }
            proModel1.PropertyValue = strValue1;
            proModel2.PropertyValue = strValue2;
            eventAggregator.GetEvent<propertyChangeEvent>().Publish(proModel1);
            eventAggregator.GetEvent<propertyChangeEvent>().Publish(proModel2);
            DialogResult res = new DialogResult(ButtonResult.Yes);
        }
        #endregion

        #region 取消

        public override void ExecuteCloseCommand(object parameter)
        {
            if (parameter as string == "ClickNo")
            {
                DialogResult res = new DialogResult(ButtonResult.No);
                RequestClose.Invoke(res);
            }
            else
            {
                RequestClose.Invoke(new DialogResult(ButtonResult.Cancel));
            }
            this.Dispose();
        }
        #endregion

        #region 新增位号
        public void onAddTagNumber()
        {
            num++;
            var dto = new KeyValueModel()
            {
                Key = (listTagNumber.Count + 1).ToString(),
                Value = preTagNumber + num
            };
            listTagNumber.Add(dto);
            selectTag = dto;
        }
        #endregion

        #region 删除位号
        /// <summary>
        /// 删除位号
        /// </summary>
        public void onDeleteTagNumber()
        {
            if (selectTag == null)
            { MessageBox.Show("请选择要删除的位号！"); return; }
            if (!listTagNumber.Any())
            { MessageBox.Show("位号列表不能为空！"); return; }
            var lastDto = listTagNumber.Last();
            if (selectTag == lastDto)
            {
                listTagNumber.Remove(selectTag);
                num--;
            }
            else
            {
                listTagNumber.Remove(selectTag);
            }
            for (int i = 0; i < listTagNumber.Count; i++)
            {
                var item = listTagNumber[i];
                item.Key = (i + 1).ToString();
            }
            listTagNumber = new ObservableCollection<KeyValueModel>(listTagNumber);
        }
        #endregion

        #region 生成
        /// <summary>
        /// 生成平行电缆位
        /// </summary>
        public void onBuild()
        {
            if (!listTagNumber.Any())
            { MessageBox.Show("位号列表不能为空！"); return; }
            StrParallelCable = FormatCableNumbers(listTagNumber.Select(a => a.Value).ToArray());
        }
        /// <summary>
        /// 根据位号组，生成一定规则的规则字符串
        /// </summary> 
        public string FormatCableNumbers(string[] input)
        {
            string strPre = GetCommonPrefix(input);

            // 1. 提取数字并排序
            List<int> numbers = input
                .Select(s => int.Parse(s.Substring(strPre.Length)))
                .OrderBy(n => n)
                .ToList();

            if (numbers.Count == 0) return strPre;

            // 2. 合并连续数字范围
            List<string> ranges = new List<string>();
            int currentStart = numbers[0];
            int currentEnd = numbers[0];

            for (int i = 1; i < numbers.Count; i++)
            {
                if (numbers[i] == currentEnd + 1)
                {
                    currentEnd = numbers[i];
                }
                else
                {
                    AddRange(ranges, currentStart, currentEnd);
                    currentStart = currentEnd = numbers[i];
                }
            }
            AddRange(ranges, currentStart, currentEnd);

            // 3. 拼接最终结果
            return $"{strPre}({string.Join(",", ranges)})";
        }
        /// <summary>
        /// 获取字符串数组的最长公共前缀（包含所有字符类型）
        /// </summary>
        private static string GetCommonPrefix(string[] strs)
        {
            if (strs.Length == 0) return "";

            string first = strs[0];
            int prefixLength = 0;

            for (int i = 0; i < first.Length; i++)
            {
                char currentChar = first[i];
                foreach (string s in strs)
                {
                    if (i >= s.Length || s[i] != currentChar)
                    {
                        return first.Substring(0, prefixLength);
                    }
                }
                prefixLength++;
            }

            return first.Substring(0, prefixLength);
        }
        private void AddRange(List<string> ranges, int start, int end)
        {
            ranges.Add(start == end ? start.ToString() : $"{start}~{end}");
        }
        #endregion
    }


}