using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Reflection;
using Aitex.Core.RT.Log;

namespace Aitex.Core.UI.View.Frame
{
    /// <summary>
    /// Interaction logic for CenterView.xaml
    /// </summary>
    public partial class CenterView : UserControl
    {
        Dictionary<string, CenterTabView> _views = new Dictionary<string,CenterTabView>();

        public CenterView()
        {
            InitializeComponent();
        }

        public void CreateView(List<ViewItem> views, string assemblyName)
        {
            foreach (ViewItem item in views)
            {
                if (item.SubView == null || item.SubView.Count == 0)
                    continue;

                CenterTabView tab = new CenterTabView();
                tab.Tag = item;

                foreach (ViewItem subItem in item.SubView)
                {
                    Type t = Assembly.Load(assemblyName).GetType(subItem.ViewClass);
                    if (t == null)
                        t = Assembly.GetExecutingAssembly().GetType(subItem.ViewClass);

                    if (t == null)
                        throw new ApplicationException(string.Format("在程序集{0}中，没有找到{1}，请检查UILayout配置文件中的设置", assemblyName, subItem.ViewClass));

                    UserControl uc;
                    try
                    {
                        uc = (UserControl)Activator.CreateInstance(t);
                    }
                    catch (Exception ex)
                    {
                        LOG.Write(ex);
                        throw new ApplicationException(string.Format("窗口{0}初始化失败，错误信息：{1}", subItem.ViewClass, ex.Message));
                    }

                    if (!string.IsNullOrEmpty(subItem.ViewModelClass))
                    {
                        Type vmType = Assembly.Load(assemblyName).GetType(subItem.ViewModelClass);
                        if (vmType == null)
                            vmType = Assembly.GetExecutingAssembly().GetType(subItem.ViewModelClass);

                        if (vmType == null)
                            throw new ApplicationException(string.Format("没有找到UILayout配置文件中的{0} in {1}", subItem.ViewModelClass, assemblyName));

                        uc.DataContext = Activator.CreateInstance(vmType);
                    }

                    tab.Add(subItem, uc);
                }

                _views[item.Id] = tab;
            }
        }

        public void SetSelection(string id)
        {
            if (!_views.ContainsKey(id))
                return;

            gridContent.Children.Clear();
            gridContent.Children.Add(_views[id]);
        }

        public string GetCurrentViewName(string culture)
        {
            if (gridContent.Children.Count == 0)
                return string.Empty;

            ViewItem info = (gridContent.Children[0] as CenterTabView).Tag as ViewItem;

            if (!string.IsNullOrEmpty(culture) && info.GlobalName.ContainsKey(culture))
                return info.GlobalName[culture];

            return info.Name;

        }

        public UserControl GetView(string id)
        {
            foreach (var item in _views)
            {
                if (item.Value.FindView(id) != null)
                    return item.Value.FindView(id);
            }

            return null;
        }

        public TabItem GetTab(string id) 
        {
            foreach (var item in _views)
            {
                if (item.Value.FindTab(id) != null)
                    return item.Value.FindTab(id);
            }

            return null;
        }

        public void SetCulture(string culture)
        {
            foreach (var item in _views)
            {
                item.Value.SetCulture(culture);
            }        
        }
    }
}