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 POSV.Entity;
using POSV.MessageEvent;
using DevComponents.DotNetBar;
using DevComponents.DotNetBar.Metro;
using POSV.Template;
using POS.Language.Language;

namespace POSV.Component
{
    [ToolboxItem(true)]
    public partial class ShortcutControl : BaseUserControl
    {
        /// <summary>
        /// 数据库的模块数据
        /// </summary>
        private List<ShortcutMenu> _dataSource = null;

        private List<MetroTileItem> _items = null;

        public ShortcutControl()
        {
            InitializeComponent();

            this.BackColor = Color.Transparent;

            //订购界面变更通知事件
            MsgEvent.RemoveListener(Constant.SHORTCUT_CHANGED_NOTIFY , this.MenuChangedEventNotify);
            MsgEvent.Receive(Constant.SHORTCUT_CHANGED_NOTIFY , this.MenuChangedEventNotify);
        }


        protected void MenuChangedEventNotify(object sender , MsgEventArgs args)
        {
            this.Invoke(new Action(() => {
                if (args.Data is List<ShortcutMenu>)
                {
                    var data = args.Data as List<ShortcutMenu>;
                     
                    this._dataSource =  data;

                    RefreshUi();
                }
            }));
        }

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

            if (this.DesignMode) return;

            var resources = new List<Resources>();

            //获取数据库的数据
            using (var db = Global.Instance.OpenDataBase)
            {
                this._dataSource = db.Query<ShortcutMenu>().ToList();

                resources = db.Query<Resources>().ToList();
            }

            this._dataSource.ForEach(x => {

                var resource = resources.FirstOrDefault(r => r.Id == x.ResourceId);

                if (resource != null)
                {
                    x.PermissionCode = string.IsNullOrEmpty(resource.PermissionCode) ? string.Empty : resource.PermissionCode;
                }
            });

            //如果数据库数据为空
            if (this._dataSource == null)
            {
                this._dataSource = new List<ShortcutMenu>();
            }

            if(this._items == null)
            {
                this._items = new List<MetroTileItem>();
            }


            RefreshUi();
        }


        public void RefreshUi()
        {
            this._items.Clear();

            this.shortcutItemPanel.Items.Clear();

            ItemContainer ic = new ItemContainer();
            ic.MultiLine = true;
            ic.Orientation = eOrientation.Vertical;
            ic.ItemSpacing = 0;
            ic.TitleStyle.Class = "MetroTileGroupTitle";

            //加载菜单显示区域为主菜单的数据
            var lists = this._dataSource.FindAll(x => !string.IsNullOrEmpty(x.ParentId));
            lists.Sort((x , y) => (x.OrderNo.CompareTo(y.OrderNo)));
            foreach (ShortcutMenu entity in lists)
            {
                //超出可显示区域不加载
                if((ic.SubItems.Count * 55 + 55) > this.Height)
                {
                    break;
                } 
                MetroTileItem item = new MetroTileItem();

                item.TileStyle.PaddingLeft = item.TileStyle.PaddingRight = -2;

                item.OptionGroup = "ShortcutMenu";

                item.TileStyle.Font = GetFont(entity.FontSize);
                item.TileStyle.TextAlignment = eStyleTextAlignment.Center;

                switch (entity.KeyCode)
                {
                    case "数量加":
                        {
                            //➕
                            if(string.IsNullOrEmpty(entity.Alias) || "➕".Equals(entity.Alias))
                            {
                                item.Text = string.Empty;
                                item.Symbol = "\uf067";
                                item.SymbolSize = 0;
                                item.ImageIndent = new Point(0 , 0);

                                item.ImageTextAlignment = ContentAlignment.MiddleCenter;
                                item.ItemAlignment = eItemAlignment.Center;
                            }
                            else
                            {
                                item.Text = entity.Alias;
                            }
                            
                            //item.Symbol = (string.IsNullOrEmpty(entity.Alias) || "➕".Equals(entity.Alias)) ? "\u2795" : entity.Alias;
                        }
                        break;
                    case "数量减":
                        {
                            //➖
                            if (string.IsNullOrEmpty(entity.Alias) || "➖".Equals(entity.Alias))
                            {
                                item.Text = string.Empty;
                                item.Symbol = "\uf068";
                                item.SymbolSize = 0;
                                item.ImageIndent = new Point(0 , 0);

                                item.ImageTextAlignment = ContentAlignment.MiddleCenter;
                                item.ItemAlignment = eItemAlignment.Center;
                            }
                            else
                            {
                                item.Text = entity.Alias;
                            }
                        }
                        break;
                    default:
                        {
                            item.Text = LangProxy.ToLang( string.IsNullOrEmpty(entity.Alias) ? entity.Name : entity.Alias);
                        }
                        break;
                }
                
                item.TileStyle.TextColor = ColorTranslator.FromHtml(entity.Color3);
                item.TileStyle.BackColor = ColorTranslator.FromHtml(entity.Color1);
                item.TileStyle.BackColor2 = ColorTranslator.FromHtml(entity.Color1);
                item.TileStyle.BorderColor = Color.Transparent;
                item.TileStyle.BorderColor2 = Color.Transparent;

                item.TileSize = new Size(base.Width , 55);

                item.Tag = entity;
                                
                this._items.Add(item);

                item.MouseDown += OnShortcutMouseDown;

                ic.SubItems.Add(item);
            }
            this.shortcutItemPanel.Items.Add(ic);
            this.shortcutItemPanel.Invalidate();
        }

        private void OnShortcutMouseDown(object sender , MouseEventArgs e)
        {
            MetroTileItem item = (MetroTileItem)sender;
            item.Checked = false;

            var module = item.Tag as ShortcutMenu;

            this.OnMenuMouseDown(new MenuEventArgs(item , module.OrderNo, module.KeyCode , module.KeyData , module));
        }

        public List<MetroTileItem> Items
        {
            get
            {
                return this._items;
            }
        }


        public event MenuEventHandler MenuMouseDown;
        protected virtual void OnMenuMouseDown(MenuEventArgs e)
        {
            MenuMouseDown?.Invoke(this , e);
        }

        private Font GetFont(string fontSize)
            {
                Font result = Constant.DEFAULT_FONT;

                ModuleFont font = ModuleFont.默认;
                Enum.TryParse<ModuleFont>(fontSize , out font);
                switch (font)
                {
                    case ModuleFont.默认:
                        {
                            result = Constant.DEFAULT_FONT;
                        }
                        break;
                    case ModuleFont.正常:
                        {
                            result = Constant.NORMAL_FONT;
                        }
                        break;
                    case ModuleFont.小字:
                        {
                            result = Constant.SMALL_FONT;
                        }
                        break;
                    case ModuleFont.大字:
                        {
                            result = Constant.BIG_FONT;
                        }
                        break;
                }

                return result;
            }
        }
}