using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using VOL.Core.DBManager;
using VOL.Entity.DomainModels;

namespace VOL.Core.UserManager
{

	public static class TableColumnContext
	{
		private static object _colObject = new object();
		private static List<TableColumnField> _columnData = null;

		public static List<TableColumnField> Data
		{
			get
			{
				if (_columnData != null) return _columnData;

				lock (_colObject)
				{
					if (_columnData == null)
					{
						_columnData = DBServerProvider.DbContext.Set<Sys_TableColumn>()
							.OrderByDescending(x => x.OrderNo).Select(s => new TableColumnField
							{
								ColumnCnName = s.ColumnCnName,
								ColumnName = s.ColumnName,
								ColumnType = s.ColumnType,
								IsDisplay = s.IsDisplay ?? 1,
								IsKey = s.IsKey,
								TableName = s.TableName,
								IsNull = s.IsNull ?? 1,
								Maxlength = s.Maxlength,
								OrderNo = s.OrderNo,
								IsUnique = s.IsUnique
							}).ToList();
					}
				}
				return _columnData;
			}
		}


		private static object _tableObject = new object();
		private static List<TableInfo> _tableData = null;
		public static void Reload()
		{
			_columnData = null;
			_tableData = null;
		}

		public static List<TableInfo> TableInfo
		{
			get
			{
				if (_tableData != null)
				{
					return _tableData;
				}
				lock (_tableObject)
				{
					if (_tableData == null)
					{
						_tableData = DBServerProvider.DbContext.Set<Sys_TableInfo>().Select(s => new TableInfo()
						{
							ColumnCNName = s.ColumnCNName,
							TableTrueName = s.TableTrueName,
							SortName = s.SortName,
							TableName = s.TableName,
							DetailCnName = s.DetailCnName,
							DetailName = s.DetailName,
							Table_Id = s.Table_Id,
							MainKeyField = s.MainKeyField,
							AsyncApi = s.AsyncApi
						}).ToList();
					}
				}
				return _tableData;
			}
		}

		/// <summary>
		/// 获取表隐藏的字段
		/// </summary>
		/// <param name="table"></param>
		/// <returns></returns>
		public static List<string> GetTableHideFields(string table)
		{
			return Data.Where(x => x.TableName == table && x.IsDisplay == 0).Select(s => s.ColumnName).ToList();
		}

	}

	public class TableColumnField
	{
		public int? IsKey { get; set; }
		/// <summary>
		///
		/// <summary>
		[Display(Name = "")]
		[Editable(true)]
		public string ColumnName { get; set; }

		/// <summary>
		///
		/// <summary>
		[Display(Name = "")]
		[Editable(true)]
		public string ColumnCnName { get; set; }

		/// <summary>
		///
		/// <summary>
		[Display(Name = "")]
		[Editable(true)]
		public string ColumnType { get; set; }

		/// <summary>
		///
		/// <summary>
		[Display(Name = "")]
		[Editable(true)]
		public string TableName { get; set; }

		/// <summary>
		///
		/// <summary>
		[Display(Name = "")]
		[Column(TypeName = "int")]
		[Editable(true)]
		public int? IsDisplay { get; set; }
		public int? IsNull { get; set; }
		public int? Maxlength { get; set; }
		public int? OrderNo { get; set; }
		public int? IsUnique { get; set; }
	}

	public class TableInfo
	{
		[Column(TypeName = "int")]
		public int Table_Id { get; set; }

		[Editable(true)]
		public string TableName { get; set; }
		[Editable(true)]
		public string TableTrueName { get; set; }
		[Editable(true)]
		public string ColumnCNName { get; set; }

		public string SortName { get; set; }
		/// <summary>
		/// 与主表关联的字段
		/// </summary>
		[Editable(true)]
		public string ForeignField { get; set; }

		/// <summary>
		/// 显示所有查询条件
		/// </summary>
		[Editable(true)]
		public int? FixedSearch { get; set; }


		public string DetailCnName { get; set; }

		public string DetailName { get; set; }

		/// <summary>
		/// 主表主键字段
		/// </summary>
		public string MainKeyField { get; set; }

		public int? AsyncApi { get; set; }

	}
}