using System;
using System.Collections.ObjectModel;
using System.Data;
using System.Linq;
using System.Windows;
using Aitex.Core.RT.Log;
using MECF.Framework.Common.DataCenter;
using OpenSEMI.ClientBase;
using VirgoUI.Client.Models.Sys;

namespace VirgoUI.Client.Models.History.ProcessHistory
{
    public class SelectDataViewModel : UiViewModelBase
    {
        #region 
        private const int MAX_PARAMETERS = 50;
        public DateTime BeginDate { get; set; }
        public DateTime StartDateTime { get; set; }
        public DateTime EndDateTime { get; set; }
        
        public ObservableCollection<RecipeItem> Recipes { get; set; }
        public ObservableCollection<RecipeItem> SelectedRecipes { get; set; }

        private ObservableCollection<ParameterNode> _ParameterNodes;
        public ObservableCollection<ParameterNode> ParameterNodes
        {
            get { return _ParameterNodes; }
            set { _ParameterNodes = value; NotifyOfPropertyChange("ParameterNodes"); }
        }
        public ObservableCollection<string> SelectedParameters { get; set; }

        object _lockSelection = new object();

        public ObservableCollection<string> SourcePM { get; set; }
        public string SelectedValuePM { get; set; }

        public string RecipeName { get; set; }

        #endregion

        #region Popup window
        public SelectDataViewModel()
        {
            var now = DateTime.Now;
            this.StartDateTime = now;
            this.BeginDate = now;
            this.StartDateTime = new DateTime(now.Year, now.Month, now.Day, 0, 0, 0, 0);
            this.EndDateTime = new DateTime(now.Year, now.Month, now.Day, 23, 59, 59, 999);
       
            Recipes = new ObservableCollection<RecipeItem>();
            SelectedRecipes = new ObservableCollection<RecipeItem>();

            SelectedParameters = new ObservableCollection<string>();
            ParameterNodes = ProcessHistoryProvider.Instance.GetParameters();

            SourcePM = new ObservableCollection<string>(new[] { "PM2", "PM4", "PM6" });
        }

        protected override void OnActivate()
        {
            base.OnActivate();

           ParameterNodes = ProcessHistoryProvider.Instance.GetParameters();
            foreach (var recipeItem in Recipes)
            {
                recipeItem.Selected = false;
            }
        }
 

        public void SearchRecipe()
        {
            Recipes.Clear();

            //ObservableCollection<RecipeItem> items = ProcessHistoryProvider.Instance.SearchRecipe();
            //foreach (RecipeItem item in items)
            //    Recipes.Add(item);

            try
            {
                string sql = $"SELECT * FROM \"process_data\" where \"process_begin_time\" >='{StartDateTime:yyyyMMdd HHmmss}' and \"process_end_time\" <='{EndDateTime:yyyyMMdd HHmmss}' ";

                if (!string.IsNullOrEmpty(SelectedValuePM))
                {
                    string[] pms = SelectedValuePM.Split(',');
                    if (pms.Length > 0)
                    {
                        sql += " and (FALSE ";
                        foreach (var pm in pms)
                        {
                            sql += $" OR \"process_in\"='{pm}' ";
                        }
                        sql += " ) ";
                    }
                }

                if (!string.IsNullOrEmpty(RecipeName))
                {
                    sql += string.Format(" and lower(\"recipe_name\") like '%{0}%'", RecipeName.ToLower());
                }
 
                sql += " order by \"process_begin_time\" ASC;";

                DataTable dbData = QueryDataClient.Instance.Service.QueryData(sql);

                Application.Current.Dispatcher.BeginInvoke(new Action(() =>
                {
                    if (dbData == null || dbData.Rows.Count == 0)
                        return;

                    for (int i = 0; i < dbData.Rows.Count; i++)
                    {
                        RecipeItem item = new RecipeItem();

                        item.Recipe = dbData.Rows[i]["recipe_name"].ToString();
                        item.Chamber = dbData.Rows[i]["process_in"].ToString();
                        item.Status = dbData.Rows[i]["process_status"].ToString();

                        if (!dbData.Rows[i]["process_begin_time"].Equals(DBNull.Value))
                            item.StartTime = ((DateTime)dbData.Rows[i]["process_begin_time"]).ToString("yyyy-MM-dd HH:mm:ss.fff");
                        if (!dbData.Rows[i]["process_end_time"].Equals(DBNull.Value))
                            item.EndTime = ((DateTime)dbData.Rows[i]["process_end_time"]).ToString("yyyy-MM-dd HH:mm:ss.fff");
                        Recipes.Add(item);

                    }


                }));
            }
            catch (Exception e)
            {
                LOG.Write(e);
            }
        }

        public void CheckAllRecipe()
        {

        }

        public void CheckRecipe(RecipeItem recipe)
        {
            if (recipe.Selected)
            {
                SelectedRecipes.Add(recipe);
            }
            else
            {
                RecipeItem item = SelectedRecipes.FirstOrDefault(t => t.Recipe == recipe.Recipe);
                if (item != null)
                    SelectedRecipes.Remove(item);
            }
        }

        public void Preset()
        {

        }

        public void UnSelect()
        {

        }

        public void ParameterCheck(ParameterNode node)
        {
            bool result = RefreshTreeStatusToChild(node);
            if (!result)
                node.Selected = !node.Selected;
            else
                RefreshTreeStatusToParent(node);
        }

        /// <summary>
        /// Refresh tree node status from current to children, and add data to SelectedData
        /// </summary>
        private bool RefreshTreeStatusToChild(ParameterNode node)
        {
            if (node.ChildNodes.Count > 0)
            {
                for (int i = 0; i < node.ChildNodes.Count; i++)
                {
                    ParameterNode n = node.ChildNodes[i];
                    n.Selected = node.Selected;

                    if (!RefreshTreeStatusToChild(n))
                    {
                        //uncheck left node
                        for (int j = i; j < node.ChildNodes.Count; j++)
                        {
                            node.ChildNodes[j].Selected = !node.Selected;
                        }
                        node.Selected = !node.Selected;
                        return false;
                    }
                }
            }
            else //leaf node
            {
                lock (_lockSelection)
                {
                    bool flag = SelectedParameters.Contains(node.Name);
                    if (node.Selected && !flag)
                    {
                        if (SelectedParameters.Count < MAX_PARAMETERS)
                        {
                            SelectedParameters.Add(node.Name);
                        }
                        else
                        {
                            DialogBox.ShowWarning("The max number of parameters is 20.");
                            return false;
                        }
                    }
                    else if (!node.Selected && flag)
                    {
                        SelectedParameters.Remove(node.Name);
                    }
                }

            }
            return true;
        }

        /// <summary>
        /// Refresh tree node status from current to parent
        /// </summary>
        /// <param name="node"></param>
        /// <returns></returns>
        private void RefreshTreeStatusToParent(ParameterNode node)
        {
            if (node.ParentNode != null)
            {
                if (node.Selected)
                {
                    bool flag = true;
                    for (int i = 0; i < node.ParentNode.ChildNodes.Count; i++)
                    {
                        if (!node.ParentNode.ChildNodes[i].Selected)
                        {
                            flag = false;  //as least one child is unselected
                            break;
                        }
                    }
                    if (flag)
                        node.ParentNode.Selected = true;
                }
                else
                {
                    node.ParentNode.Selected = false;
                }
                RefreshTreeStatusToParent(node.ParentNode);
            }
        }

        public void OnTreeSelectedChanged(object obj)
        {

        }

        public void OK()
        {

            this.TryClose(true);

        }

        public void Cancel()
        {
            this.TryClose(false);
        }

        //public void SelectColor(ChartParameter cp)
        //{
        //    if (cp == null)
        //        return;

        //    var dlg = new System.Windows.Forms.ColorDialog();
        //    if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK)
        //    {
        //        var newColor = new System.Windows.Media.Color() { A = dlg.Color.A, B = dlg.Color.B, G = dlg.Color.G, R = dlg.Color.R };
        //        cp.Color = new SolidColorBrush(newColor);
        //    }
        //}
        #endregion
    }
}